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

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 long-time cell membrane imaging agent, which is characterized by comprising a component A and a component B. The component A is a glycol chitosan polymer with the side chain containing biotin and a hydrophobic unit; and the component B is an avidin molecule grafted with fluorescein isothiocyanate FITC. The cell membrane imaging reagent provided by the invention has good biological compatibility and good imaging effect, and can stay on the cell membrane for a long time without being swallowed, and can be used as a novel cell membrane imaging agent.

The invention discloses an anchor-pulling construction method suitable for sedimentation deformation of an overlaying soil layer of a shallow-buried tunnel. The anchor-pulling construction method comprises the following steps that 1, pretreatment before tunnel excavation is conducted; 2, a grouting anchoring rod is constructed on each of the left portion and the right portion of the spandrel position of the overlaying soil layer of the tunnel; 3, foundation beams are constructed nearby the ground surface above the tunnel to fix anchoring heads of the anchoring rods; and 4, the tunnel is excavated through an upper-middle-lower three-step method. According to the anchor-pulling construction method, the anchoring rods are constructed on the spandrel position of the tunnel and connected with the foundation beams, anchoring force is exerted to the overlaying soil layer of the tunnel, and thus anchor-pulling effect is achieved; effective strengthening is conducted for avoiding loosening, andthe very good limiting and reducing effects are achieved on sedimentation deformation of the overlaying soil layer of the stratum shallow-buried tunnel; and the construction method is short in construction period, low in manufacturing cost and high in construction efficiency, unbalanced force generated in tunnel excavation can be dissipated, the strain state is adjusted, development of deformation is slowed down, the self-constraining effect is achieved, and the very good practical value is achieved.

The invention discloses a reducing self-adaptive expansion grouting device and a reinforcing method for the cracking and breaking position of a tunnel second liner. The device comprises a body and a damper. The damper is arranged on the end portion of the body. The body is overall of a tubular structure, and the body is sequentially provided with a grout outflow section, a first expansion section,a second expansion section and a grouting section in the direction away from the damper. Multiple grout outlets are evenly distributed in the grout outflow section. The diameter after expansion of the first expansion section is larger than that of the second expansion section. By means of the grouting device, compaction grouting and splitting grouting can be simultaneously achieved, and by meansof compaction and splitting filling, the overall strength and the safety of reinforced surrounding rocks are improved.

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 biodegradable stent system for a branch blood vessel at a bifurcation. The biodegradable stent system for the branch blood vessel at the bifurcation comprises a biodegradablestent and a heteromorphic saccule. The biodegradable stent comprises a stent support part extended along the branch blood vessel and used for placing in the branch blood vessel; and a stent fixing part positioned at the bottom of the stent support part and used for anchoring at the connection part of a main blood vessel and the branch blood vessel. The heteromorphic saccule comprises a saccule fixing part extending along the main blood vessel and tightly adhered to the main blood vessel; and a saccule support part connected with the saccule fixing part and installed at the inner side of the stent support part, wherein the saccule support part is capable of supporting the external expansion of the stent support part, so the stent support part can be tightly adhered to the branch blood vessel. The above biodegradable stent system is capable of, through pressing the heteromorphic saccule to cause the plastic deformation of the stent fixing part so that the saccule fixing part is tightlyadhered to the main blood vessel wall, ensuring the complete cover of the biodegradable stent to the branch blood vessel lesion, preventing the stent fixing part from hindering the blood flow of the main blood vessel, and avoiding the stent displacement caused by the long-term impact of the blood flow of the branch blood vessel.

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 discloses a spun expanded steel pipe pile. The spun expanded steel pipe pile comprises a hollow pile foundation body, the outer circumferential surface of the front end of the pile foundation body is provided with continuous helical blades, and the front end of the pile foundation body is provided with a forwards-protruded drilling cutter. The spun expanded steel pipe pile can provide with a building above with great vertical support force, greatly improve the construction efficiency and meanwhile ensure integral perpendicularity during construction.

The invention discloses a high-pressure-resistant reverse needle valve. The valve comprises a valve body, a valve core, an elastic piece and a valve rod, wherein the surfaces of the valve core, the elastic piece and the valve rod are coated with anticorrosive coatings, and the anticorrosive coatings comprise, by weight in parts, 10-30 parts of acrylic resin, 20-40 parts of epoxy resin, 4-8 parts of curing agents, 2.5-5 parts of titanium dioxide nanofibers, 0.5-1.5 parts of coupling agents, and 30-50 parts of deionized water. The epoxy resin can be cured and cross-linked to produce a firm and stable net structure, the epoxy resin structure contains hydroxyl and ether bonds with extremely high polarity, and therefore, the coatings are excellent in heat resistance and corrosion resistance, and have good heat resistance, wear resistance, high pressure resistance and corrosion resistance effects. The titanium dioxide nanofibers have excellent corrosion resistance while capable of being usedas coating filler, and can effectively improve the corrosion resistance of the coating. In addition, the titanium dioxide nanofibers can also play a role in anchoring in the net structure, thereby further improving the stability of the coating.

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.