Tue, 26 May 2015 08:00:00 EDTAn oil spill clean-up apparatus and method, and more specifically to a self-contained oil spill clean-up vessel with ice displacement capabilities. One preferred oil spill clean-up system includes a vessel subsystem, an ice displacement subsystem, and an oil spill skimming subsystem. Preferred oil spill clean-up systems may include at least one storage subsystem. Preferred oil spill clean-up systems may include an oil/water separation and removal subsystem.
Tue, 26 May 2015 08:00:00 EDTFacilities for offshore liquefied natural gas (LNG) floating storage with jack-up platform regasification unit, the facilities including: a jack-up unit comprising legs which have bottom part to be fixable to a sea bed and top part to be exposed to a surface of water, and a hull to be movable up and down with respect to the legs; a storage unit moored at the jack-up unit providing a space for storing LNG; a regasification unit as a module which regasifies the LNG supplied from the storage unit, installed on a top portion of the jack-up unit, separable from the jack-up unit; a utility unit comprising a power source and a sea water pump to supply power and sea water to the regasification unit; and a piping unit comprising unloading pipe for connecting the regasification unit and the storage unit and supplying pipe for carrying natural gas gasified by the regasification unit.
Tue, 26 May 2015 08:00:00 EDTA modular expandable weighting system for recreational and professional underwater divers that permits a user to selectively attach one or more individual weight units to each other to achieve a desired amount of weight to regulate the user's overall buoyancy while under water. When used with a weight belt, the weights when attached create channels through which a weight belt may be disposed. If two or less weights are attached, end caps may be attached to create the channels to allow the system to be attached to the weight belt. When used without a weight belt, such as on a buoyancy compensator device with multiple weight pockets, the weight system allows for the placement of exact amounts of weights to achieve the desired amount of overall buoyancy as well as to maintain the desired degree of horizontal trim.
Tue, 26 May 2015 08:00:00 EDTA boring shield apparatus for attachment to a boring machine/jack for installing pipe sections underground is provided by this invention. Such invention comprises drill heads and a screw auger that rotate with respect to a non-rotating exterior housing. When the boring shield is operatively connected to the boring machine jack and moved forward into contact with the earth along the desired underground pathway for the pipeline, dirt is excavated by means of the rotating drill head and transferred inside a self-contained screw auger whereupon it is pushed safely away from the boring shield and boring machine. This boring shield apparatus pivots with respect to itself for enhanced steering capacity. It accommodates pipelines of larger diameter and length and rough exterior surface.
Tue, 26 May 2015 08:00:00 EDTA pipeline insertion system may include an insertion device outside a tunnel that includes an insertion device frame and a movable clamp device in slidable engagement with the insertion device frame. A drive may cause the movable clamp device engaged with a pipeline to move between a first position and a second position along the frame. Inside the tunnel, the system may also include a plurality of support frames remote from the insertion device and remote from each other which support the pipeline on bearings as the pipeline is pushed (or pulled) by the insertion device through the bores of a plurality of housing segments mounted in the tunnel. A controller is operative to control the drive and the movable clamp device responsive to transducers which measure pipeline slippage, thrust force, and clamping pressure.
Tue, 26 May 2015 08:00:00 EDTA pipe float is configured for receiving a pipe therein and providing buoyancy for maintaining the pipe along the surface of a body of water. The pipe float has an inner surface presenting a central passage adapted for receiving the pipe, the inner surface including a plurality of preferably substantially planar, longitudinally extending panels which provide a continuous inner surface. Adjacent panels are angularly oriented relative to one another, and the pipe float is preferably provided as a plurality of pipe float sections assembled together whereby one panel of a pipe float section is preferably oriented at an obtuse angle to an adjacent panel of that pipe float section. The panels may be of different transverse dimensions whereby the passage has a greater transverse dimension G which is substantially greater than a smaller transverse dimension S, with the outer diameter D of the pipe received in the passage being of a value equal to or smaller than G and greater than or equal to S.
Tue, 26 May 2015 08:00:00 EDTSystems and methods for collecting and processing permafrost gases and for cooling permafrost are disclosed herein. A method for processing gas in a permafrost region includes obtaining a gas from a sacrificial area of a thawing permafrost region, dissociating the gas in a non-combustive chemical process, and circulating a constituent of the gas through a savable area of the thawing permafrost region to cool the savable area. This process can be used to cool selected areas of permafrost and/or create clean-burning fuels and/or other products from permafrost gases.
Tue, 26 May 2015 08:00:00 EDTThe present invention pertains to a new method and system for producing electricity from tidal energy. In one embodiment the system employs at least one underground region for collecting water percolating at a higher tide level and at least another underground region capable of fluid communication with the first underground region. The system is configured to release water at separate times from the underground regions to operate hydro turbines and generators to produce electricity.
Tue, 26 May 2015 08:00:00 EDTSystem for containing liquid introduced onto a reusable load-supporting surface includes a plurality of interconnectable berm members configured to releasably sealingly engage the load-supporting surface to prevent leakage of liquid from the load-supporting surface around its perimeter.
Tue, 26 May 2015 08:00:00 EDTA pole splint, generally for use with a broken wooden utility pole, which can provide for a strong repair at a pole breakpoint and which uses relatively little manpower and equipment to install, even under difficult conditions. The splint generally comprises two panels which are designed to be interconnected with elongated connectors. The connectors will generally interact with one of the panels through the use of a nut and washer, and may connect with the other panel through a nut and washer or via a chain formed of chain links.
Tue, 19 May 2015 08:00:00 EDTAn apparatus for filling joints in precast concrete structures includes a core that has exceptionally low creep and conforms to ASTM D 1752 made of controlled particle size composites of recycled cellular rubber and plastic materials in the form of a rectangular slab. Holes are drilled through a central area and countersink recesses are formed around the holes. An outer coating of a thermoplastic polyurethane/polyurea elastomer system of a thickness of 0.075 inch covers the slab and countersink recesses. The coated core is abrasion and UV resistant while having the creep characteristics needed to make a dam expansion joint filler.
Tue, 19 May 2015 08:00:00 EDTAn engineered topsoil for use in soil reclamation and a method of producing the same are disclosed that seek to replicate undisturbed native reference topsoil from near the site in need of land reclamation. The engineered topsoil is formed from a base amount of subsoil and amendment comprised of an effective amount of surrogate humin material sufficient to replicate the estimated humin organic carbon content of the native reference topsoil, and an effective amount of plant residue material sufficient to replicate the estimated non-humin organic carbon content of the native reference topsoil.
Tue, 19 May 2015 08:00:00 EDTA geomembrane liner for a containment system including liner panels and connected by a seam at overlapped edges, with the top panel having a conductive lower surface which is non-conductive across the seam. Heat welding of the seams is accomplished by a welder having a heating unit with a projection which interrupts the conductive lower surface of the top panel before forming the seam. Such seams may be used separately or selectively with a lined containment system having a plurality of liner panels covering at least a portion of the containment system bottom. The liner panels have a conductive lower surface and overlap with adjacent panels, and conductive members underlie adjacent panels and contact the conductive lower surface of both adjacent panels to provide an electrical connection between the conductive lower surfaces of the adjacent panels.
Tue, 19 May 2015 08:00:00 EDTTrench shoring apparatuses configured to be moved by construction equipment and including major vertical arms, struts attached to the lower ends of the major vertical arms, connectors rigidly connected to the major vertical arms proximate the upper ends of the major vertical arms, the connectors being configured to detachably couple with the construction equipment. In some examples, struts include strut arms movably supported by the major vertical arm and strut actuators configured to selectively extend and retract the strut arm laterally across trenches, the strut arms being configured to pair with shoring plates proximate outer ends. In some examples, connectors include first retaining arms and second retaining arms extending transverse to the major vertical arm. In some examples, connectors include metallic rings defining openings sized to receive projections of construction equipment. Some examples include remote control receivers and remote control transmitters in electronic communication with the remote control receivers.
Tue, 19 May 2015 08:00:00 EDTMethods for preventing, reducing, or eliminating construction heave, expansion, distresses, and damage primarily caused by the formation of ettringite are disclosed including introducing fluoride ion releasing agent/salt(s), such as sodium fluoride, calcium fluoride, and potassium fluoride, to expansive soil layers or concrete structural elements and allowing the fluoride ion releasing agent/salt(s) at ambient temperature to react with formed ettringite and to prevent the formation of ettringite of the expansive soil layers or concrete structural elements. Other embodiments are described and claimed.
Tue, 19 May 2015 08:00:00 EDTThe invention relates to a structure for transporting, installing, and dismantling a deck (1) of an off-shore exploitation rig, for installing, and dismantling this deck (1) on at least one supporting column, characterized in that it comprises two transport barges (20) and means (30) for supporting and raising the deck (1), temporarily connected to said deck and to said barges and configured to be supported by these barges for supporting said deck between said barges and a method for transporting, installing, and dismantling the deck (1) using the structure for transporting, installing, and dismantling the deck (1).
Tue, 19 May 2015 08:00:00 EDTA lifejacket which is designed to be worn with, alongside, in conjunction with, or integrated within a self contained breathing apparatus.
Tue, 19 May 2015 08:00:00 EDTThe invention discloses a flexible offshore pipeline for oil and gas transportation stabilized on seabed by anchorage piers. It comprises cable (1) and flexible pipe (2) for oil and gas transportation, anchorage pier assemblies (3) to prevent the cable from drifting, and constraining assemblies (4) to restrict the flexible pipe (2) are sequentially provided on the cable. The anchorage pier assembly (3) comprises a gravity block (31) and the first clamping tool (32), and the first clamping tool (32) connects with the cable (1). The invention uses the flexible pipe (2) to build up offshore pipeline for oil and gas transportation, and anchorage pier assembly (3) and constraining assembly (4) for constraining the flexible pipe (2) are sequentially provided on the cable (1), which can restrict the flexible pipe, achieve reliable oil and gas transportation and prevent the flexible pipe drifting on the seabed. The pipeline system can protect the flexible pipe, are strong and reliable and the cost of pipeline is low. It also has the advantages of being safe and easy and fast to installation.
Tue, 19 May 2015 08:00:00 EDTA connector assembly, riser assembly and method of producing a connector assembly are disclosed. The connector assembly includes a body portion for locating over a flexible pipe and arranged to be connectable to or formed integrally with one or more buoyancy compensating element, and one or more protrusion extending from the body portion and arranged to reduce or interrupt vortex induced vibrations in water surrounding the flexible pipe in use.
Tue, 12 May 2015 08:00:00 EDTA finger guard is described, removably attachable to a shoring device of the type having a pair of opposed shoring columns having outer and inner surfaces, the outer surfaces exposed for contact with excavation surfaces and with an extendable and retractable jack pivotally secured at the inner surfaces to the column. The finger guard comprises a sheet of stiff material; at least one connector attached to the sheet, wherein the at least one connector includes: two arms spaced apart from each other and extending generally parallel to each other; a shoulder element extending between the two arms, and connecting the two arms together; a leg element, extending from the shoulder element parallel with the arms; wherein, the sheet of stiff material is attached to the at least one connector; a set screw threadably passing through one of the arms, the set screw being configured to attach the connector to a portion of a shoring column.
Tue, 12 May 2015 08:00:00 EDTA wall block having a block body having opposed front and back faces, opposed first and second side walls, and opposed and substantially parallel top and bottom faces, the top face having a receiving channel, and the receiving channel opening onto one or more pin holes. The wall block can be used in a retaining wall made of (i) a plurality of blocks including at least one lower course and at least one upper course, at least one block comprising a block body having opposed front and back faces, opposed first and second side walls, and opposed and substantially parallel top and bottom faces, the top face having a receiving channel, and the receiving channel opening onto one or more pin holes; (ii) a soil retaining material; and (iii) a channel bar.
Tue, 12 May 2015 08:00:00 EDTA device that attaches to the center of a boat slip so a boat entering the slip will engage the device. The device consist of a central vertical member having a horizontal support bar on one end so that the horizontal support bar is approximately centered with respect to the vertical member and is approximately perpendicular thereto. Each end of the horizontal support bar is provided with a forwardly inclined leg that engages the rear end of an approaching boat as the boat backs into the boat slip. Each leg is capable of flexing slightly rearward when engaged by the boat to slow and stop the boat, preventing damage to both the boat and the dock. An alternate embodiment eliminates the vertical member.
Tue, 12 May 2015 08:00:00 EDTApparatus and method for overhauling a flanged coupling of joined conduit components including a gripping mechanism that straddles the flange-coupling and grips both flange-coupled components. The gripping mechanism is mounted on a lifting frame and bears the loadings upon the gripped tubular components during a moving operation. The apparatus also includes a collar sized to fit over the flange-coupling and located in spaced apart cradles supported on a base frame. The cradles are configured to receive the flange-coupled tubular components and position the collar for closure about the flange-coupling. The collar is provided with fasteners for closure of the collar about the flange-coupling, and a fastening mechanism operating the fasteners to secure the collar when closed about the flange-coupling.
Tue, 12 May 2015 08:00:00 EDTAn articulating band saw apparatus provides a frame that includes a vertically extending section having upper and lower end portions. An elevator moves between the upper and lower end portions of the frame. A first hydraulic actuator is supported on the elevator for movement therewith. A first arm provides arm end portions, the first arm supported by the first hydraulic actuator. An end of the first arm supporting a second hydraulic actuator that is spaced away from the first hydraulic actuator. The second hydraulic actuator supports a second arm. An endless band type saw is mounted on the free end of the second arm generally opposite the second actuator. The band saw is movable by articulation of the first and second actuators and resulting movement of the first and second arms. In one embodiment, the band saw is a diamond wire saw.
Tue, 12 May 2015 08:00:00 EDTA geothermal pyrolysis system is configured to convert a slurry into a petroleum material. The geothermal pyrolysis system comprises an input well configured to receive the slurry from a mixer. Piping that is mechanically coupled to the input well and extending downward to a point where the earth has an ambient temperature exceeds three hundred degrees Fahrenheit and can transform the slurry into the petroleum material. An extraction well is mechanically coupled to the piping configured to extract the petroleum material from the piping. A separator is mechanically coupled to the extraction well which separates the petroleum material into carbon char, water, oil and gas.
Tue, 12 May 2015 08:00:00 EDTThe invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are disclosed herein.
Tue, 12 May 2015 08:00:00 EDTA dissipator for providing controlled water drainage from a downspout. The dissipator comprises a base and a cover plate. The base provides engagement with a downspout and the cover plate is configured to mount to a portion of the base, defining at least one drainage hole. A skirt portion of the base couples to the downspout so that the at least one drainage hole of the cover plate provides controlled water drainage by dissipating the water flowing within the downspout and through the dissipator.
Tue, 12 May 2015 08:00:00 EDTAn equipment complex for deploying and recovering marine geophysical seismic or electric-survey bottom stations is mounted on a ship. The complex includes—a powered capstan, —rotatable turntables and rolls, —load-bearing units connected to the bottom stations by various fasten means and capable of winding onto the capstan and turntables, a work platform supporting a bottom station placed thereon, —an indicator for registration of the bottom stations' coordinates, mounted on the platform, —a limit switch mounted on the platform, switching ON when the bottom station is placed on the work platform, and OFF when it's removed therefrom providing for operation of the indicator. The complex may include floating buoys, damping loads, and halyards for deploying the stations. Methods for deploying and recovering the bottom stations using the equipment complex are described. Some recovering methods contemplate winding the load-bearing units onto the capstan, while switching the turntables for each subsequent load-bearing unit.
Tue, 05 May 2015 08:00:00 EDTThe present invention relates to a method for adsorbing and/or absorbing oil, by bringing oil into contact with a polyurethane sponge with excellent mechanical properties.
Tue, 05 May 2015 08:00:00 EDTA method of chemically and physically treating unconsolidated soils, over burden, fill and certain waste materials (the “ground”), or partly consolidated materials that can be excavated and broken up by normal earth moving and soil mixing equipment. This treatment results in the reduction of permeability in the ground, and as a result permits the prevention or control of contaminant migration from a site containing ground wastes of various types, thereby isolating these wastes.
Tue, 05 May 2015 08:00:00 EDTThe present invention relates to a method for installing a pipe (313) when drilling a first hole with the aid of a rock drilling apparatus (100), wherein a tool (309) which can be connected to a drilling machine (306) via one or more drill rods (308) is used in said drilling, which method comprises—drilling a first part of said first hole,—installing a pipe (313) in at least a part or said first drilled part of said first hole, wherein the method further comprises:—installing said pipe (313) in said first hole while drilling of said first part of said first hole is in progress.—pulling said drill rod (308) out of said first hole before finishing drilling of said first hole to the desired, compared with said first part, deeper depth. The invention also relates to a system and to a rock drilling apparatus.
Tue, 05 May 2015 08:00:00 EDTA device for introducing a filling material into a hole in the ground, with a channel-like filling section which can be introduced into the hole and has an upper feed opening for feeding in the filling material and a lower discharge opening for discharging the filling material in a lower area of the hole. The filling section includes an upper feed section and a flexible hose section arranged below. During the filling of the hole with the filling material the flexible hose section can be moved upwards along the feed section. During upward movement of the flexible hose section a severing device severs an upper area of the hose section in a longitudinal direction. Furthermore, the invention relates to a method for introducing a filling material into a hole.
Tue, 05 May 2015 08:00:00 EDTThere is provided an apparatus for securing a hollow pile in the ground. The pile has a wall with an inner surface. The apparatus is positionable within the pile. The apparatus includes a housing having an interior and a plurality of apertures. The apparatus includes a plurality of spaced-apart protrusions slidably extending through the apertures of the housing. The protrusions are moveable outwards from the housing for selectively deforming portions of the wall of the pile and creating anchor knobs in the pile upon pressurized hydraulic fluid being applied to the interior of the housing. The apparatus includes a plurality of support members extending outwardly from the housing. The support members are shaped to selectively abut and support the inner surface of the wall of the pile when the anchor knobs are being formed.
Tue, 05 May 2015 08:00:00 EDTA foundation repair system comprising a starter pile, a cable, a stop, and at least one piling segment. The starter pile includes an elongate housing and a base with an opening therethrough. The cable extends from the elongate housing, through the base and through the piling segments. The piling segments include a first portion with a first cross-sectional area and a second portion with a second-smaller cross-sectional area, the second portion of one piling segment resting atop the first portion of the lower piling segment.
Tue, 05 May 2015 08:00:00 EDTA floating production system includes a jacket and a deck supported by the jacket. The jacket includes a plurality of legs and a plurality of braces connected between the plurality of legs. The plurality of braces are connected between the legs along substantially the entire length of each leg to provide a stiffened space frame. Two or more of the plurality of legs may further include a longitudinally oriented launch cradle.
Tue, 05 May 2015 08:00:00 EDTA system and method for underwater compressed fluid energy storage include a compressed fluid storage system that comprises a fluid containment vessel positioned on a floor of a body of water, wherein the fluid containment vessel comprises sediment positioned therein to ballast the vessel on the floor.
Tue, 05 May 2015 08:00:00 EDTA method of installing an offshore wind turbine and a transport vessel for use therewith in which a part of a wind turbine is secured to the transport vessel by raising the part in a perpendicular direction relative to the transport vessel into a transport position using a lifting device arranged on the transport vessel at a loading site. The transport vessel is then moved from the loading site out to an installation site. The transport vessel is secured to an offshore foundation which is located at the installation site by a holding device. The wind turbine is then lowered onto an upper part of the offshore foundation using the lifting device. Finally, the transport vessel is released and moved away. The lifting device is at least one set of jack-up device.
Tue, 05 May 2015 08:00:00 EDTA trench plow blade for removing cable below ground which includes a plow member having upper and a lower end and a plow wedge disposed at the lower end, the trench plow blade receiving air or water for loosening the ground above the cable or reciprocally moving the plow member relative to the plow wedge. Apparatus for the removal of cable buried in the ground and a method relating to removal of buried cable with a trenching plow blade is disclosed.
Tue, 05 May 2015 08:00:00 EDTA pumpable mine ventilation stopping wall structure comprised of a pumpable bag having spaced walls of generally parallel nonporous and flexible sheets with the sheets retained in spaced relationship with spaced flexible cross ties. The perimeter of the spaced walls are closed off with a permeable mesh having a mesh size which will permit restricted flow of cementitious grout therethrough for sealing the wall structure to surrounding rough mine faces. The bag is provided with at least one grout fill port for filling the bag by pumping cementitious grout into the bag.
Tue, 05 May 2015 08:00:00 EDTImplementations and techniques for providing subsurface permeation barriers are generally disclosed.
Tue, 05 May 2015 08:00:00 EDTA system and method for creating sand bars or gravel bars in fresh water includes the use of a hopper to mix pressurized water and gavel to create slurry. The slurry is discharged by a worker in the water so as to make a gravel bar or other structure to help restore wild life. A new hopper 100 may comprise a top box section 120, the top box section having an upper end attached to a grate system 110, a pair of lateral spill shields 115 and a rear spill shield 117; and the top box section may have a lower end attached to a funnel assembly 130; the funnel assembly may comprise a top section 132 and a constrained lower section 135, the constrained lower section may comprise a plurality of inside angled lower edges 137 all terminating within a section of an angled hopper pipe 140.
Tue, 05 May 2015 08:00:00 EDTThe point of the invention is to evenly distribute water or effluent over an irrigation area or a drain field. Typically the fluid comes from a reservoir or a septic tank and is fed, by gravity, into a number of discharge pipes that would be located underground. The device related to this invention is characterized by a container with an inlet at the top and a number of outlets at the bottom. Inside the container the fluid is directed to the center of a flow splitter surface underneath, via a specifically configured spout. To make the fluid spread radian and uniformly towards the surface's perimeter this surface has hydrophilic properties and is convex shaped. The fluid eventually flows uniformly over the surface's edge and is evenly distributed over the outlets at the bottom.
Tue, 28 Apr 2015 08:00:00 EDTAn underpinning pile assembly has a first pile with an inner diameter and an outer diameter, a second pile having a first portion and a second portion in which the first portion has an outer diameter less than an outer diameter of the second portion, and a ring affixed around the first portion of the second steel pipe. The ring has an outer diameter greater than the outer diameter of the second portion of the second steel pipe. The ring is releasably positioned over the first portion of the second steel pipe. A cable is affixed within an interior of the first steel pipe so as to extend through the interior of the second steel pipe. A plurality of additional steel pipes can be arranged in stacked relation upon an end of the second steel pipe opposite the first steel pipe.
Tue, 28 Apr 2015 08:00:00 EDTA method for preventing shield jamming by excessive frictional resistance in earth pressure balance shield which involves real-time monitoring of earth pressure signal for earth pressure on the shield body through sensors on the shield machine. Combined with the known parameters, resistance in the shield machine is calculated. The friction F1 between the shield body and the stratum is calculated by CPU module in PLC according to the earth pressure signals on a real-time basis. Then the friction F1 is determined whether it is less than or equal to the difference between the quotient of dividing total propulsion force Ft by correction coefficient Kxz and total resistance of F2, F3, F4 and F5; if so, it is under normal propulsion; if not, the warning device alarms.
Tue, 28 Apr 2015 08:00:00 EDTA system for recirculating lock water includes a sealable storage area located near a lock for receiving water from the lock. The storage area is large enough to house the lock water with excess space between a maximum water level and the ceiling. The system also includes at least one compressor connected to the storage area to create a vacuum to withdraw the water from the lock into the storage area.
Tue, 28 Apr 2015 08:00:00 EDTAn Oil/Gas Recovery System, a Rotating Encasement Fitting (REF) and Methods of Using. The Oil/Gas Recovery System comprises a flexible shroud open at an end facing a leaking drill line arising from the bottom of a body of water, a recovery system operably coupled to the flexible shroud by an intake line, and a delivery system, operably coupled to the flexible shroud by a delivery line. The flexible shroud is adapted to be lowered or raised in a body of water, so that the open end encloses a source of crude oil or gas to be recovered. The Rotating Encasement Fitting (REF) for sealing a compromised pipeline fracture, comprises bladder glands at each end of the REF and a pipeline having a fracture therein. The bladder glands can be activated by a supply line or remotely supplied for multiple charges.
Tue, 28 Apr 2015 08:00:00 EDTAn apparatus for protecting against environmental contamination at a drilling site is disclosed. The apparatus is used to form a perimeter around the drilling site, the interior of which is covered by a geomembrane. The portion of the geomembrane found along the perimeter is placed in the groove of the apparatus's base. A key block is then fit into the grove, thereby holding the geomembrane in place by the tension created between the base and the key block. At those perimeter locations that will be traversed by vehicles and equipment, two ramp pieces replace the key block in holding the geomembrane tight against the base.
Tue, 28 Apr 2015 08:00:00 EDTA molded plastic arch shape cross section stormwater chamber having a corrugated wall comprises separately molded half chambers which are connected by coupling features at a joint at the top of the chamber. Preferably, the half chambers are substantially identical and are made in the same mold. The half chambers may be compactly stored and transported. Near the point of use, the chambers may be assembled.
Tue, 28 Apr 2015 08:00:00 EDTAn EPB shield machine without disc cutter, which includes a partition unit formed by a moveable partition member (30) and a stationary partition member (31), a front shield unit (13) including a cutting unit (1) with cutting head (11) and cutting teeth (12), a shaft member (2) connected to the cutting head (11) and a power transmission unit formed by a transfer case (5), a reducer (6) and a driving motor (7). In the power transmission unit at an upper portion of the machine, the transfer case (5) is fixedly to the moveable partition member (30), a sliding arrangement supports the reducer (6) and the driving motor (7), which are connected to the transfer case (5, and a telescopic cylinder (26) is connected to the sliding arrangement. The machine has advantages of high cutting efficiency, balanced service life, high directional construability and high adaptability to tunnel cross section.
Tue, 28 Apr 2015 08:00:00 EDTThe present invention relates to a subsurface refuse collection system comprising an underground bunker (4), a refuse container (3), a deposit bin (1) and a cover (2) with automatic opening and closing which can be powered electrically using a solar system. The container (3) is collected by means of an automated crane (18) with automatic hitching to facilitate collection. The system is equipped with multiple devices to measure volume and weight of the refuse deposited in the deposit bin (1), for the purpose of system monitoring or improvements to the management of truck routes. It also includes a safety device to prevent accidental fails into the underground bunker during collection.