36results about How to "Act as an anchor" patented technology

A new uncoupled backfill support method for steel frames in roadways with complex broken surrounding rocks, including a trapezoidal steel support module for supporting the roadway, the support method also includes an uncoupled backfill process module, the uncoupled backfill The process module is used to increase the initial service cycle of the roadway. The uncoupled backfill process module includes the roadway overexcavation process module before the trapezoidal steel support is erected, and the log backfill process module after the trapezoidal steel support is erected. The roadway over-excavation process module also includes a reinforced vertical board process module, and the log backfill process module also includes a pre-dimension window process module. The roadway over-excavation process module is used to actively release the pressure and can be erected Before the support of the trapezoidal steel bracket, the pressure relief space is reserved in advance, and the roadway is drilled and blasted. After the blasting, it is trimmed with tools such as pneumatic picks to make the two sides of the roadway a continuous surface. The falling scum is cleaned up.

The invention discloses a medicine-applying filming support. The medicine-applying filming support comprises a supporting body, an inner film and an outer film. The inner film is closely attached to an inner cavity of the support body and fixedly connected with the support body; filming areas are formed in the portions, provided with the inner film, of the support body, the outer film is wound around the support body relative to the outer surface of the filming areas, and the support body is firmly wrapped by the outer film in the middle of the inner film and the outer film; bare support areas are formed in the portions, not provided with the inner film, of the support body, and the bare support areas and the filming areas are sequentially and alternately arranged. According to the medicine-applying filming support, the bending performance of the filming support is improved through the filming mode; meanwhile, the wall attaching performance and the stability of the filming support are improved, and the problem that the filming support is prone to shifting is effectively solved. The inner cavity of the film is coated with anticoagulation medicine, and thrombosis is reduced; the whole outer wall of the filming support is loaded with medicine for inhibiting smooth-muscle-cell proliferation and migration, and restenosis of the inside and the two ends of the postoperation support cavity is effectively prevented.

The present invention discloses a mutually embedded slope protection block, which is composed of a top side, a bottom side, a front side, a back side, a left side and a right side, wherein, a mutually embedded structure is arranged on the front or back side or the left or right side for adjacent blocks, however, all the mutually embedded sides on the mutually embedded structure are a slope inclined to the block from the bottom to the top. The present invention also discloses a construction method for constructing the slope protection with blocks, and the method is described below: the protection slope is tamped, an inverted filter is paved on the protection slope and a mutually embedded protection slope block is paved, anchoring rods are inserted into holes on the mutually embedded protection slope and plantation soil or gravel is refilled in the grass plantation hole or the gravel filling hole. The present invention makes the protection slope which is adapted free of uneven settlement or frost heaving and deformation after the mutually embedded side becomes a slope to ensure security and reliability of the slope protection system.

The invention discloses a different-diameter self-adaptive expansion grouting device and a reinforcement method for the cracked and damaged part of the second lining of the tunnel. It includes a body and a damper, and the damper is arranged at the end of the body; In the direction of the damper, the slurry outlet section, the first expansion section, the second expansion section and the grouting section are arranged in sequence; several slurry outlet holes are evenly distributed on the slurry outlet section; the expanded diameter of the first expansion section greater than the expanded diameter of the second expansion section. The grouting device can realize compacting grouting and splitting grouting at the same time, and improves the overall strength and stability of the reinforced surrounding rock through compacting and splitting filling.

The invention, which relates to the field of mine hydrogeology, discloses a method for treating a water-absorbing heaving floor of a bottom plate of a coal mining roadway. The method comprises the following steps: step one, observing a heaving floor of a bottom plate of a roadway to obtain a maximum height h of the heaving floor and a coordinate of the plane at which the maximum height is located;step two, carrying out slip casting and hole drilling on two bottom corners of the bottom plate the roadway; step three, carrying out slip casting reinforcement through the slip-casting drilling hole; step four, carrying out water-drawing hole drilling on the bottom plate the roadway and arranging a water pumping pipe and a floral tube in the water-drawing hole; step five, arranging sensors at the top plate and two sides of the roadway; step six, laying a vacuum pumping system on the bottom plate the roadway; step seven, starting the vacuum pumping system; step eight, stopping water pumping after reaching a water-drawing stopping standard; step nine, filling sedimentation, caused by the water pumping, of the bottom plate the roadway; and step ten, at coal mine tunneling and exploitation stages, repeating the steps from the step six to the step nine until scrap of the roadway under the condition of reaching the h by the height of the heaving floor. According to the invention, vacuum water pumping is carried out on the heaving floor, so that the water-absorbing expansion is eliminated.