8results about How to "Good waterproof" patented technology

This application relates to a traction-type continuous core membrane water-stopping system, comprising an undisturbed soil mixing body (2), a closed or long continuous core membrane (1) erected in the undisturbed soil mixing body (2) after implementation, and auxiliary components (3) for sealing nodes. The implementation components for forming this water-stopping system include the core membrane (1), a casing (4) containing the core membrane (1) and a forwarding device (5), the forwarding device (5), an implantation device (6), a traction rope (8), and a traction device (7). The forwarding device (5) connects the traction rope (8) and the core membrane (1) and pulls the built-in core membrane (1) forward and unfolds within the undisturbed soil mixing body (2). The traction device (7) pulls the forwarding device (5) and the core membrane (1) unfold within the undisturbed soil mixing body (2). This system can be effectively implemented and forms a continuous and reliable water-stopping structure. It has a fast construction speed, good water-stopping effect, and low cost, and is especially suitable for foundation pit and slope water-stopping.

The application discloses a flood releasing device for hydraulic engineering, which comprises a flood releasing base, a water retaining wall and a flood releasing gate, a flood releasing groove is formed in the flood releasing base, the flood releasing gate is arranged on one side of the flood releasing groove, the flood releasing gate comprises a gate, a portal frame, a screw rod, a driving assembly and a hand wheel, a flood releasing hole is formed in the gate, the portal frame is fixedly arranged on the top of the flood releasing base, a sliding groove is formed in the portal frame and the flood releasing base, and the gate is slidably connected with the sliding groove. The flood releasing device for hydraulic engineering integrates a separate opening and closing assembly on the main gate, when only small flow needs to be released, the heavy main gate does not need to be driven, and only by controlling the opening degree of the cover gate, stepless and fine adjustment of the flow can be realized, the operation response is fast, the energy consumption is low, when large flow needs to be released, the cover gate can be closed first, then the main gate is lifted, full opening degree flow releasing is realized, and the flexibility and working condition adaptability of the flood releasing operation are enhanced.

The utility model relates to a water stop strip mounting structure between new concrete and old concrete of a gate culvert. The device is installed between an old concrete structure and a new concrete structure. Comprising a cutting groove formed in the middle of the vertical face of the old concrete structure, a water-swelling water stop belt is installed in the cutting groove, a water stop piece is arranged in the cutting groove, the inner end edge of the water stop piece makes contact with the water-swelling water stop belt, a left pressing plate and a right pressing plate are installed on the vertical face of the old concrete structure, and the two pressing plates clamp the water stop piece. The interior of the cutting groove is grouted to form a grouting body, an epoxy mortar layer covering the pressing plate is arranged on the vertical face of the old concrete structure, a polyethylene high-pressure closed-pore plate is arranged on the outer side of the epoxy mortar layer, and the outer side edge of the polyethylene high-pressure closed-pore plate makes contact with the water stop piece. The part, located outside, of the water stop strip is integrally poured and formed in the new concrete structure, and the polyethylene high-pressure closed-pore plate is located between the epoxy mortar layer and the vertical face of the new concrete structure. The installation structure overcomes the defects that a water stop piece is not firmly installed, the water stop effect is poor, and construction is inconvenient in an existing installation structure.

The utility model discloses a full recovery type pile anchor support construction structure which comprises an inclined pile and a recoverable anchor rod, the inclined pile comprises a plurality of steel pipe PC inclined piles which are arranged at intervals, rabbets are formed in the two sides of the steel pipe PC inclined piles, the top of the recoverable anchor rod is connected with the steel pipe PC inclined piles, and the bottom of the recoverable anchor rod is arranged far away from the steel pipe PC inclined piles. The recyclable anchor rod comprises a prefabricated anchoring pier, a metal corrugated pipe, a round steel anchor rod body, a grouting body, a gasket and a locking nut, the metal corrugated pipe is fixedly connected with the prefabricated anchoring pier, and the round steel anchor rod body is installed in the metal corrugated pipe. One end of the round steel anchor rod is in threaded connection with the prefabricated anchoring pier, the other end of the round steel anchor rod extends out of the metal corrugated pipe and is fixed to the steel pipe PC inclined pile through the gasket and the locking nut, and the prefabricated anchoring pier and the metal corrugated pipe are wrapped with the grouting body. The utility model has the advantages that the steel pipe PC inclined pile is combined with the recoverable anchor rod, so that the support material is fully recovered and can be reused, the cost and environmental influence are reduced, and the device is environment-friendly, economical, safe and efficient.

The invention discloses a jacking pipe opening annular pressure type water stop construction method which comprises the steps that firstly, it is checked that an annular pressure unit is intact and free of defects, and the diameter of the minimum position of the annular pressure unit is matched with the outer diameter of a jacking pipe; secondly, a water stop unit is installed on the annular pressure unit in a detachable connecting mode, the water stop unit is designed to be provided with double water stop rings, and a sealing unit is installed between the double water stop rings in the process of installing the water stop unit; thirdly, the annular pressure unit, the water stop unit and the sealing unit are integrally hoisted to a to-be-installed position, and the annular pressure unit is fixed to the well wall of the working well through a fastening unit and located at the edge of a pipe jacking hole; fourthly, the jacking pipe is jacked in a segmented jacking mode, and the water stopping parts of the water stopping units and the sealing units are attached to the outer wall of the jacking pipe; fifthly, after the pipe jacking is completed, the annular pressure unit is detached from the well wall of the working well, the annular pressure unit, the water stopping unit and the sealing unit are integrally hoisted out of the working well, and the construction method is easy and convenient to operate and good in water stopping effect.

This utility model belongs to the field of hydropower station construction technology, specifically relating to a novel compressive structural joint for high concrete-faced rockfill dams. It includes a compressive concrete face and a T-shaped concrete cover plate, both formed by two-stage casting, with the T-shaped cover plate cast on top of the compressive concrete face. A waterstop is installed at the bottom between the compressive concrete face and the T-shaped cover plate; the upper part of the waterstop is filled with asphalt-impregnated fir board, and asphalt felt is placed between the cast surfaces of the compressive concrete face and the T-shaped cover plate. This novel compressive structural joint, through its innovative double-joint design and the filling of the joint with asphalt-impregnated fir board—a compressible filler—effectively absorbs the axial deformation of the high concrete-faced rockfill dam, significantly reducing the horizontal compressive strain of the face and fundamentally avoiding the problem of face crushing failure due to excessive compressive stress.

This invention discloses a method for using a mobile steel dam, comprising a pair of steel dam lifting guide rails and a mobile steel dam body. The mobile steel dam body includes a pontoon and a water injection / drainage system. The steps for closing the dam are as follows: A1. Move the mobile steel dam body to a position matching the steel dam lifting guide rails and moor it to a mooring bollard using nylon ropes or steel wire ropes; A2. Install lifting limit blocks on the pontoon, and connect each lifting limit block to the corresponding steel dam lifting guide rail to form a sliding pair, so that the pontoon can only move up and down along the length direction of the steel dam lifting guide rail; A3. Inject water into the pontoon through the water injection / drainage system, causing the pontoon to sink to the bottom of the river or waterway along the length direction of the steel dam lifting guide rail, thus completing the dam closure; the steps for opening the dam are the reverse of the dam closure steps. The application of this invention can solve problems such as backflow of water, wind and wave impact, ship navigation safety, and flooding in the surrounding area during flood season and strong winds / typhoons.

The utility model discloses a sleeve pile joint structure for an underground diaphragm wall. The sleeve pile joint structure comprises a secant pile, a first jet grouting pile and a second jet grouting pile, the secant piles are arranged between every two adjacent sections of underground diaphragm walls, one side of each secant pile is connected with the first section of underground diaphragm wall in a secant mode, and the other side of each secant pile is connected with the second section of underground diaphragm wall in a secant mode. The first jet grouting piles are arranged at the joints of the secant piles and the first underground diaphragm wall section, and the second jet grouting piles are arranged at the joints of the secant piles and the second underground diaphragm wall section. Wherein the first jet grouting piles and the second jet grouting piles are located on the soil facing sides of the two adjacent sections of underground diaphragm walls, and the first jet grouting piles and the second jet grouting piles are connected in an engaged mode; the joint is simple in structural design, high in construction efficiency, stable in performance, light in construction disturbance and small in occupied area, and the axial surface environment is powerfully protected.