211results about How to "Improve the anchoring effect" patented technology

The invention discloses an expansion shell type low-prestress energy-absorbing anchor rod and a construction method thereof.The expansion shell type low-prestress energy-absorbing anchor rod comprises a conical head, expansion shell pieces, an inner rod and a sleeve rod, the rear end of the conical head is connected with the inner rod in the axial direction, and the conical head comprises a conical section, a circular truncated cone section and a cylindrical section which are connected in the axial direction from front to back; the expansion shell piece is a cylindrical shell and is coaxially arranged outside the conical head in a sleeving manner; when the conical head moves towards the shell expansion piece at the rear end, the large-diameter part of the circular truncated cone section backwards enters the shell expansion piece, and the shell expansion piece outwards deforms in the radial direction; the inner rod is a columnar rod body, the upper wall and the lower wall of the rear section of the inner rod are each provided with a plurality of first arc-shaped protrusions, and the first arc-shaped protrusions are arranged at intervals; the sleeve rod is in a columnar shell shape, and a plurality of second arc-shaped protrusions are arranged on the inner wall of each semi-cylindrical shell at intervals in the length direction of the semi-cylindrical shell; the sleeve rod is coaxially arranged outside the inner rod in a sleeving mode, and the second arc-shaped protrusion and the first arc-shaped protrusion are meshed. The anchor rod is firm in anchoring, excellent in extension performance and suitable for soft rock large deformation or hard rock rockburst stratum reinforcement engineering.

The invention relates to the technical field of slope protection, and discloses a municipal water supply and drainage construction slope protection device which is mainly composed of a plurality of vertical protection mechanisms and a transverse protection mechanism, and the vertical protection mechanisms are linearly arranged on the surface of a slope body. A transverse protection mechanism is arranged between the two vertical protection mechanisms, and the two ends of the transverse protection mechanism are connected with the connecting mechanisms. The vertical protection mechanism, the connecting mechanism and the transverse protection mechanism are arranged on the slope body, the vertical protection mechanism is movably connected with the transverse protection mechanism through the connecting mechanism, and due to the fact that the transverse protection mechanism is obliquely arranged, when it rains, rainwater is guided by the transverse protection mechanism, flows into the vertical protection mechanism and then is discharged downwards through the vertical protection mechanism; the amount of rainwater flowing on the surface of the slope body is effectively reduced, the impact force of the rainwater on the surface of the slope body is reduced, and therefore water and soil loss is relieved, and protection on the slope body is improved.

The invention discloses a lateral expansion type telescopic grouting anchor rod and a construction method, and relates to the field of anchoring structures. The lateral expansion type telescopic grouting anchor rod comprises a hollow rod body, a lateral expansion assembly and an anchoring assembly, the top end of the hollow rod body is connected with a conical guide cap, and the lateral expansion assembly comprises a plurality of fan-shaped expansion pieces arranged in the circumferential direction of the hollow rod body at intervals and steel wire ropes connected with the fan-shaped expansion pieces in a one-to-one correspondence mode. Each fan-shaped expansion piece is configured to rotate in the direction close to or away from the hollow rod body, and a torsional spring is connected between each fan-shaped expansion piece and the hollow rod body; when the steel wire rope is stretched or loosened, the fan-shaped expansion piece overcomes the elastic force of the torsional spring to rotate in the direction close to the hollow rod body or the compressed torsional spring pushes the fan-shaped expansion piece to rotate in the direction away from the hollow rod body; the anchoring assembly is used for fixing the hollow rod body to a rock wall. According to the lateral expansion type telescopic grouting anchor rod, the friction force between the anchor rod and the inner wall of a drill hole can be effectively increased, and the anchoring effect and economical efficiency are improved.

The utility model provides an anchoring device for preventing landslide geological disasters, and relates to the technical field of anchoring equipment, the anchoring device comprises an anchor rod assembly, a transmission assembly is arranged in the anchor rod assembly, the transmission assembly comprises a lead screw rotationally connected to the inner wall of the anchor rod assembly, and the upper end of the lead screw penetrates through the top surface of the anchor rod assembly. According to the anchoring device for preventing the landslide geological disaster, a sliding block and a first trapezoidal block can be driven to extrude a second trapezoidal block through rotation of a lead screw, and then the second trapezoidal block drives a push plate and a spine block to move towards the outer side of an anchor rod body till the push plate and the spine block are inserted into soil; the firmness of the device is effectively improved by inserting the push plate and the spine blocks into soil, the anchoring capacity is improved, the device can rapidly anchor the protective net and the protective plate, the anchoring effect is good, and practicability is high.

The invention relates to the technical field of civil engineering and composite materials, in particular to a fiber composite anchor rod intelligent design method and system.The method comprises the following steps that carbon fibers and glass fibers are used for manufacturing a carbon-glass hybrid anchor rod core part, and meanwhile, LCP fiber bundles are used for weaving the surface of the carbon-glass hybrid anchor rod core part to form a woven layer; winding LCP fiber bundles on the surface of the braid layer to form LCP fiber winding ribs, so as to obtain the fiber composite anchor rod; adjusting the adjustable parameters of the fiber composite material anchor rods to produce a plurality of fiber composite material anchor rods so as to construct a production parameter prediction model, and using the production parameter prediction model to obtain production parameter prediction values of the fiber composite material anchor rods when anchor rod performance parameters are given; and producing the fiber composite anchor rod according to the production parameter predicted value. By means of the method, the fiber composite anchor rod high in mechanical property and economical efficiency can be produced, the production efficiency can be improved, and the production cost can be reduced.

The invention discloses a visual prostate implant conveying device, and belongs to prostatic hyperplasia surgical instruments.The conveying device comprises a conveying handle and a conveying pipeline, the conveying pipeline comprises a puncture needle pipeline, a composite pipeline, an installation end, an imaging system and a pressing plate, a needle cavity is formed in the puncture needle pipeline, a through cavity is formed in the composite pipeline, and the installation end is connected with the through cavity; the composite pipeline is fixedly connected to the lower side of the puncture needle pipeline; an arc-shaped channel in butt joint with the puncture needle pipeline is arranged in the installation end, and a pressing plate containing cavity is formed in the position, corresponding to the front end of the composite pipeline, of the lower side of the installation end. A camera storage cavity is formed in the portion, located on the lower side of the arc-shaped channel, in the mounting end, and observation windows are formed in the two sides of the mounting end and correspond to the camera storage cavity. The imaging system comprises a camera module rotationally arranged in the camera storage cavity; one end of the pressing plate is rotationally connected to the composite pipeline outlet end. The conveying pipeline has a large operation view field and is more convenient and safer to use, and the use requirement is lowered.

The utility model discloses an anti-impact biological blanket slope protection structure for an expressway slope. The anti-impact biological blanket slope protection structure comprises a plant fiber blanket, a first anchoring nail and a second anchoring nail. Wherein the plant fiber blanket is laid on the slope protection, the plant fiber blanket is fixed on the slope protection through the first anchoring nails and the second anchoring nails, and the first anchoring nails and the second anchoring nails are arranged in a staggered mode. The anchoring nail comprises a pipe body, a first barb and a cover body. The first barbs are fixed to the side wall of the pipe body at intervals. The cover body is horizontally fixed at the top end of the pipe body, a vertical rod is fixed on the lower surface of the cover body, and the vertical rod is parallel to the pipe body. The pipe body and the first barbs of the anchoring nail are inserted into the slope protection, and the cover body is tightly pressed on the plant fiber blanket so that the plant fiber blanket can be fixed to the slope protection. The biological blanket slope protection structure can effectively prevent the biological blanket from being easily blown away by wind or washed away by water, the stability of the biological blanket slope protection structure is improved, and the biological blanket slope protection function is prevented from losing efficacy.

The invention discloses a brake type gradually-changed section drilling device and a using method thereof, and belongs to the technical field of underground coal mine construction. Comprising a combined rod body, the tail of the combined rod body is connected with a main control system, the combined rod body comprises a driving rod body of a hollow rod body structure, a brake rod body is arranged in the driving rod body in a sleeved mode, and the end of the driving rod body is connected with a rock-soil breaking tool bit which is of a special-shaped structure and can be opened and closed. A spiral adjusting disc capable of controlling opening and closing of the rock-soil breaking tool bit through rotation is movably arranged on the inner side of the end of the driving rod body and connected with the end of the brake rod body. A motor and a brake are arranged in the main control system, the motor drives the driving wheel to drive the driving rod body to rotate for drilling, the brake limits rotation of the brake rod body to achieve position change of the rock-soil breaking tool bit on the section sliding groove, and therefore the preset drilling hole diameter is controlled and mastered in the drilling process. The device has the advantages of reasonable structure, stable function, economy, high efficiency and the like.

The invention provides a production process of a silicon wafer cutting fluid, and relates to the technical field of cutting fluids, the production process of the silicon wafer cutting fluid comprises the following steps: mixing 10-15 parts of a wetting agent, 20-30 parts of a dispersant, 6-10 parts of a stabilizer and 40-60 parts of pure water to form the silicon wafer cutting fluid; the preparation method of the wetting agent comprises the following steps: S11, reacting phytic acid with allyl glycidyl ether to obtain a prepolymer; s12, the prepolymer, N, N-dimethylacrylamide, pentenedioic acid and an initiator are polymerized to obtain the dispersing agent, and the cutting fluid obtained through production effectively improves the qualified rate of large-size silicon wafer cutting.

The invention relates to a non-magnetic concrete frame structure with additional aluminum ribs and FRP ribs and non-magnetic concrete. The concrete frame structure comprises FRP beam longitudinal ribs, the additional aluminum ribs, FRP column longitudinal ribs and the non-magnetic concrete. The additional aluminum ribs are anchored at the two ends of the FRP beam longitudinal bars and the top ends of the FRP column longitudinal bars respectively, the anchoring length needed by the FRP bars is effectively reduced, and the FRP beam longitudinal bars and the FRP column longitudinal bars are arranged in the non-magnetic concrete in a non-bending mode. The non-magnetic concrete is prepared from the following components in parts by weight: 360 to 500 parts of non-magnetic cement, 700 to 800 parts of non-magnetic fine aggregate, 950 to 1200 parts of non-magnetic coarse aggregate, 150 to 180 parts of water, 0.2 to 0.4 part of water reducing agent and 0 to 0.2 part of functional additive, and the residual magnetism intensity of each component is lower than 1nT. The FRP bars with the remanence intensity smaller than 0.2 nT and the non-magnetic concrete with the remanence intensity smaller than 1 nT are adopted, and interference of magnetic substances (remanence reaches thousands or even tens of thousands of nT) in conventional steel bars and concrete on high-precision equipment and instruments is effectively avoided. And the service magnetic stability of the structure in the life cycle is effectively guaranteed, and powerful support is provided for development and application of the preceding scientific research technology.

The invention discloses acrylate modified polyether block silicone oil and a preparation method thereof. The acrylate modified polyether block silicone oil is prepared by reacting an epoxy polyether monomer with hydrogen-containing silicone oil in the presence of a catalyst to synthesize epoxy polyether block silicone oil, the epoxy polyether block silicone oil reacts with (methyl) acrylic acid in the presence of a polymerization inhibitor and a catalyst to obtain the acrylate modified polyether block silicone oil. The acrylate modified polyether block silicone oil integrates the advantages of acrylate modified silicone oil and epoxy modified silicone oil, an acrylate functional group is short in curing time, an epoxy functional group is not subjected to oxygen inhibition and the like, and a polyether unit is directly grafted into a silicone oil structure, so that the problem of poor compatibility of a polyether diluting monomer and the acrylate modified silicone oil can be avoided. Epoxy polyether group modification can improve anchoring performance on a film / paper base material, end-position and side-position acrylic acid modification is higher in reaction activity compared with single acrylic acid modified silicone oil, curing efficiency can be improved, crosslinking degree can be increased, and residual adhesion rate can be increased.

The utility model discloses a shear wall external post-embedded steel bar anchoring structure in the technical field of reinforced concrete structures, which comprises a concrete wall, one side of the concrete wall is connected with a beam body, a post-anchored steel bar is inserted into the concrete wall, one end of the post-anchored steel bar penetrates into the beam body, and the other end of the post-anchored steel bar penetrates into the beam body. The other ends of the rear anchoring steel bars penetrate to the surface of the concrete wall, the surfaces of the ends, located outside the concrete wall, of the rear anchoring steel bars are fixedly connected with back steel plates, and the back steel plates abut against the surface of the concrete wall. According to the scheme, through the structural arrangement of the rear anchoring steel bars, the back steel plates and the bolts, the anchoring effect of the rear anchoring steel bars is improved, the stress requirement of the rear anchoring steel bars is met, the thin wall steel bar anchoring problem is solved, meanwhile, the back steel plates and the rear anchoring steel bars can be fixed through the bolts or welded, and the installation convenience of the device is further improved.

The utility model relates to the technical field of bridges, and provides an anti-seismic stop block of a bridge, which comprises a connecting part and a supporting part which are connected with each other, the connecting part is provided with a through hole, an anchoring steel bar can penetrate through the through hole, and the anchoring steel bar is arranged in a cover beam, a support padstone or a pier. According to the device, the anti-seismic check block is prevented from protruding out of the top face of the cover beam, the cover beam does not need to reserve an installation space on the top face, the outer end face of the cover beam can be flush with the end face of the support padstone, the use amount of cover beam materials is saved, the main beam and the bridge deck which are large in self weight exist above the installation position of the connecting part, the connecting part can be pressed more tightly, and the anti-seismic effect is better. Therefore, the foundation stress of the anti-seismic check block is more stable, the transverse displacement of the main beam is effectively resisted by virtue of the self weight of the upper structure, the impact force of the main beam does not need to be resisted independently by virtue of the self weight of the anti-seismic check block, the design size of the anti-seismic check block is effectively reduced, the design difficulty and the construction difficulty are further simplified, and the construction period is shortened.

The present invention relates to a buoy system, comprising: a buoy body; and an anchoring device, which is arranged below the buoy body and is used to stabilize the buoy body, and the buoy body comprises: a main cabin, at the bottom of which the anchoring device is arranged; a mast, which is arranged above the main cabin; a plurality of brackets, which surround the side of the main cabin; and a plurality of outer wall components, which are fixed on the brackets and fixed on the outer side of the main cabin, and form a closed floating chamber with the brackets and the side of the main cabin. The present invention realizes structural modularization, simplifies the production process, and is convenient for transportation and loading and unloading. It can be deployed and recovered by small and medium-sized fishing vessels and engineering ships, reducing the cost of using ships, and optimizes its internal space structure. A variety of equipment can be installed in the buoy to meet monitoring requirements.

A recoverable constant-resistance large-deformation anchor rod structure comprises an anchoring section, an anchoring agent cartridge, an anchoring section conical head and an anchor rod, the anchor rod comprises an I-type anchor rod section and an II-type anchor rod section, and the I-type anchor rod section and the II-type anchor rod section are connected through an anchor rod body connecting sleeve. When a rotary connector of the sleeve pushing rotary rod rotates, the anchor rod body is driven to be connected with the sleeve, the I-type anchor rod section and the II-type anchor rod section. An octagonal sleeve upper connecting section of the anchor rod body connecting sleeve is connected with an II-type anchor rod section through threads on the inner wall of the octagonal sleeve upper connecting section, an octagonal sleeve lower connecting section is fixedly connected with an I-type anchor rod section through threads on the inner wall of the octagonal sleeve lower connecting section, and a middle separating section is used for separating the octagonal sleeve upper connecting section and the octagonal sleeve lower connecting section. The recyclable anchor rod can be recycled through disassembly and assembly after engineering is completed, the requirement for raw materials is reduced, sustainable utilization of resources is facilitated, the adverse effect on the environment is reduced, the recyclable anchor rod has high flexibility and can adapt to different engineering requirements, and due to the fact that the installation process of the recyclable anchor rod is relatively safe, the use risk is reduced.

The utility model belongs to the technical field of water stop structures, and particularly relates to an LUUI closed type rubber water stop belt and a water stop structure used at the joint of a new building and an old building. The water stop belt comprises a double-U-shaped sealing belt, an L-shaped wing plate belt and an I-shaped wing plate belt. The double-U-shaped sealing belt is formed by oppositely buckling two U-shaped belts to form a sealed whole; the L-shaped wing plate belt and the I-shaped wing plate belt are fixed to the two opposite sides of the double-U-shaped closed belt respectively. The water stop structure comprises an L-shaped groove body formed in the side, close to a joint, of an original building, and an L-shaped wing plate strip is matched with the L-shaped groove body and fixed to the L-shaped groove body. The double-U-shaped sealing belt is arranged in a joint of an original building and a new building, and the width B of the double-U-shaped sealing belt is matched with the width of the joint. And the I-shaped wing plate strip is poured in a new building. The LUUI closed type rubber waterstop and the waterstop structure can adapt to telescopic displacement and uneven settlement difference between new and old building concrete, so that the waterstop does not lose efficacy due to overlarge settlement difference and vibration dislocation, and potential safety hazards caused by premature tearing failure are avoided.

The invention relates to the technical field of rock-soil slope reinforcement, in particular to a reinforcement device for a rock-soil slope. The device comprises a plurality of reinforcing anchor rods assembled on one side of a rock-soil slope, and reinforcing mechanisms are assembled on the inner sides of the reinforcing anchor rods. Through the structural design of the reinforcing mechanism, the stiffening mechanism and the limiting mechanism, the metal protective net can stably cover the rock-soil side slope conveniently, meanwhile, one end of a reinforcing anchor rod can be fixed to the inner side of the rock-soil side slope in cooperation with filler, the anchoring effect of the reinforcing anchor rod on the metal protective net is improved, and the service life of the metal protective net is prolonged. The reinforcing anchor rod is prevented from loosening when subjected to external scouring, the safety of the device is improved, the reinforcing anchor rod can be assisted to be inserted into the rock-soil side slope, meanwhile, the reinforcing anchor rod and the rock-soil side slope can be conveniently separated, and the operation efficiency during rock-soil side slope reinforcing construction is improved; and a second long stiffening rod, a third long stiffening rod and a second short stiffening rod are added into the filler, so that the tensile strength can be improved, and the integrity and stability of the structure are enhanced.

The invention relates to an efficient electrode pole piece manufacturing method which can efficiently remove crystal water in a battery pole piece and improve the production efficiency and the battery performance. Comprising the following steps: forming a through hole in a metal foil, uniformly coating the surface of the metal foil with slurry, automatically rolling the coated metal foil into a pole piece roll core, placing the pole piece roll core in a vacuum oven, and heating and baking in a negative pressure environment to remove crystal water and cure an electrode material. The metal foil can be designed into a multi-layer stacked structure, a through hole is formed in each metal sub-layer, and the centers of the through holes in the adjacent layers are not overlapped, so that the binding force of the electrode material can be improved while the discharge efficiency of crystal water is enhanced. The method is particularly suitable for being applied to sodium battery positive electrode materials such as Prussian blue and white systems, and the dehydration effect and the production efficiency are both improved. The electrode plate provided by the invention has lower water content after baking, higher drying efficiency and better cycle attenuation performance and energy density.

The utility model discloses a fixing fixture for an anti-floating anchor rod, and relates to the technical field of mechanical engineering, a second through column is arranged outside the anchor rod, a stable holding mechanism is assembled in the second through column, a power assembly is assembled in the second through column, the stable holding mechanism comprises a plurality of first connecting rods, and the first connecting rods are connected with the first connecting rods. The side end of each first connecting rod is fixedly connected with a second connecting rod, the side end of each second connecting rod is fixedly connected with a hinge block, the side end of the second through column is fixedly connected with a fourth through column, and the side end of each first column block is arranged at the side end of the fourth through column. According to the mechanism, the mechanical transmission principle is adopted, a traditional fixing clamp for the anti-floating anchor rod is improved, the stability of the traditional fixing clamp for the anti-floating anchor rod for fixing the anti-floating anchor rod is improved through an additional structure, when the hole diameter is too large, the anchor rod is inserted, the phenomenon of cavities or non-uniformity in the grouting process can be prevented, and the grouting quality and the anchoring effect are improved.

This invention discloses a microtexturing treatment and lamination process for the copper foil surface of a low-thermal-expansion high-frequency copper-clad laminate (CCL). Belonging to the field of CCL manufacturing technology, it solves problems in existing CCL technologies, such as the difficulty in balancing peel strength and high-frequency transmission performance, excessively high coefficient of thermal expansion, easy delamination between layers, and patent conflicts. This invention employs a combined plasma etching and chemical micro-etching process to prepare a honeycomb-like pit-column-protrusion composite microtexture on the resin-coated surface of the substrate copper foil. After modification with a fluorine-containing and aminosilane coupling agent and mixed passivation treatment, a surface-modified copper foil is obtained. This foil is then laminated with a low-thermal-expansion high-frequency prepreg containing linear polyarylamide through a segmented preheating, gradual pressure curing, and slow cooling and depressurization process to prepare the CCL. This invention features a simple process, conforms to industrial practice, exhibits excellent overall performance, effectively avoids patent conflicts, and is suitable for high-end fields such as 5G communication and AI servers.

The present invention relates to the field of cementing tools, and in particular to a prestressed cementing anchor, which aims to alleviate the technical problem of low anchoring firmness of the anchor in the related technology. The prestressed cementing anchor includes an expansion assembly and an anchoring assembly, wherein the expansion assembly includes an isolation sleeve, an expansion mechanism and a turbine mechanism, wherein one end of the isolation sleeve is fixedly connected to the anchoring assembly and is also connected to the anchoring assembly, the expansion mechanism is rotatably connected to the other end of the isolation sleeve, and the turbine mechanism is arranged in the isolation sleeve and is connected to the expansion mechanism through magnetic transmission, so as to be able to drive the expansion mechanism to rotate around the axis of the isolation sleeve under the starting condition. The anchor can be driven by hydraulic power to start the turbine mechanism, thereby driving the expansion mechanism to rotate, so as to remove the virtual mud cake of the anchoring section, and expand a step of a certain size on the well wall, so that the extension angle of the anchor claw of the anchor assembly is improved, which can effectively avoid the problem of difficulty in the insertion of the anchor claw in the hard formation and the loose anchoring of the anchor claw in the soft formation after extension.

The invention provides a prefabricated road structure adapting to free stretching and anchoring of tree roots. The prefabricated road structure comprises a surface drainage guide layer, a runoff retention storage device and a soil root system structure compartment which are pre-buried underground from top to bottom; the surface drainage guide layer is used for infiltrating runoff on a road and providing sufficient oxygen for the runoff retention reservoir; the runoff retention storage device is used for storing runoff on a road and providing sufficient water and oxygen for the root system structure compartment; the soil root system structure compartments are filled with loose and breathable in-situ soil, and the in-situ soil provides nutrients for root system development and growth. According to the road structure, the soil root system structure compartments are arranged, so that in-situ nutritional soil can be filled, and tree roots can freely grow in the road structure; by arranging the surface drainage guide layer and the runoff retention storage device, sufficient oxygen and water supply is guaranteed, good air permeability and water permeability are provided for tree root growth, and healthy and free growth of trees beside a road is promoted.

The utility model belongs to prefabricated building technical field provides a kind of precast wall with embedded connecting piece, the precast wall with embedded connecting piece includes mounting plate, several screw sleeves and several hooking ribs, mounting plate is equipped with several mounting holes, one side is joint surface, joint surface is used to be combined with wallboard;Several screw sleeves are one-to-one corresponding with mounting hole, screw sleeve protrudes joint surface and mounting plate fixed connection through mounting hole;Several hooking ribs are spaced apart in the side of the joint surface of mounting plate, one end is fixedly connected with joint surface, and the other end is provided with a hook.The precast wall with embedded connecting piece provided by the utility model, the hook of hooking rib and concrete form mechanical engagement, avoid the integral displacement of connecting piece along screw sleeve axis direction;After screw sleeve and mounting plate fixed connection, the bolt tightening force borne by screw sleeve, wallboard splicing stress can be transmitted to hooking rib by mounting plate, then by hooking rib disperses to wallboard concrete, greatly improves the combination strength of screw sleeve and wallboard.

The invention discloses a treatment method for a ballast bed upheaval of an underground excavation station of an operating metro. A plurality of anchoring holes and drainage holes are formed in a ballast bed upheaval affected area, anchor rods are arranged in the anchoring holes, grouting is conducted in the anchoring holes, and finally the ballast bed is anchored through the formed anti-floating anchor rods. The anchor rod comprises a twisted steel bar for prestressed concrete, the diameter of the twisted steel bar for prestressed concrete is 40 mm, a conical centering loader is connected to the twisted steel bar for prestressed concrete, and a spiral stirrup is arranged at the position, corresponding to a ballast bed, of the top end of the twisted steel bar for prestressed concrete. And at least two water-stopping rings which expand when meeting water are arranged on the twisted steel for the prestressed concrete and correspond to the position between the ballast bed and the backfill layer and the position between the backfill layer and the secondary lining concrete. The track ballast bed can be effectively anchored through the formed anti-floating anchor rod, so that the track ballast bed, a station bottom plate and a stratum rock mass are connected into a whole, and the problems that the bottom of the ballast bed is void in the later period of subway operation, a large amount of water is drained in a station for a long time, and the operation safety risk is large can be effectively solved.

This application relates to the field of anti-buoyancy technology in building engineering, and particularly to an anti-buoyancy anchor construction process and an anti-buoyancy anchor, comprising: S1: preliminary preparation; S2: rod assembly; S3: hole drilling and enlarging, drilling a deep hole at a preset position, and after drilling to the target depth, performing end enlarging construction within the enlarged hole depth range to form an anchoring grouting zone; S4: anchor lowering, lowering the finished anchor to the target depth in the hole, at which time the enlarged bladder extends into the sediment at the bottom of the hole; S5: grouting operation, injecting grout into the enlarged bladder through a grouting pipe to expand the enlarged bladder and push the sediment at the bottom of the hole outward until the enlarged bladder is filled with grout, completing the grouting construction in one step, and completing the grouting construction of the gap between the anchor rod and the inner wall of the hole; S6: prestressing locking; S7: casting to obtain the anchor anti-buoyancy system; This application has the effect of reducing the possibility that sediment at the bottom of the hole will combine with the concrete mortar during the grouting process and affect the anchoring effect of the anti-buoyancy anchor.

The application discloses a kind of sensing optical cable surface laying methods, it is related to sensing optical cable technical field.The present application includes laying vehicle, laying vehicle top is fixed with unwinding frame and pad height chamber, pad height chamber top is connected with sliding table by ground rail, sliding table top linearly is equipped with distance measuring mechanism, drilling mechanism, support auxiliary frame and wire rack, drilling mechanism includes first lifting cylinder, first lifting cylinder telescopic end is fixed with motor, motor output end is connected with drill bit, support auxiliary frame includes hydraulic hammer and second lifting cylinder.The present application can be automatically opened in installation surface by the design of drilling mechanism, the design of support auxiliary frame can be positioned to Z type support with high stability, and hydraulic hammer can assist manual hammering expansion bolt, the design of wire rack can limit the position of optical cable, the whole anchoring process worker only needs to participate in hammer tool and hook tool, save time and effort, improve laying efficiency and can ensure laying safety.

A self-drilling injection anchor pipe anchoring device and method for coal mines, comprising an anchor pipe, a disposable drill bit, a tray, a nut, an anchor A material grouting assembly, an anchor B material grouting assembly and a slurry mixing tee joint, wherein the disposable drill bit is coaxially installed at the front end of the anchor pipe, the disposable drill bit and the anchor pipe are inserted into the borehole, the rear end of the anchor pipe extends out of the borehole, the tray is sleeved on the anchor pipe, the nut is threadedly connected to the rear end of the anchor pipe, the rear end of the nut is crimped with the front end of the tray, a front-to-back transparent grouting center channel is opened inside the disposable drill bit and the anchor pipe, the outlet end of the slurry mixing tee joint is connected to the rear port of the anchor pipe, and the two inlet ends of the slurry mixing tee joint are respectively connected to the outlets of the anchor A material grouting assembly and the anchor B material grouting assembly. The invention has simple process, flexible operation, high construction efficiency, saves the process of drilling and withdrawing the drill rod, is convenient for conveying the anchoring agent, and the resin ring formed after the anchoring agent is injected has uniform thickness and good anchoring effect.

The present application relates to the technical field of slope protection, and discloses a construction slope protection device for municipal water supply and drainage, which is mainly composed of a vertical protection mechanism and a horizontal protection mechanism. The number of the vertical protection mechanisms is several, and the vertical protection mechanisms are linearly arranged on the surface of the slope body. A horizontal protection mechanism is arranged between the two vertical protection mechanisms, and the two ends of the horizontal protection mechanism are connected to the connecting mechanism. The present invention arranges a vertical protection mechanism, a connecting mechanism and a horizontal protection mechanism on the slope body, and the vertical protection mechanism is movably connected to the horizontal protection mechanism through the connecting mechanism. Since the horizontal protection mechanism is arranged obliquely, when it rains, the rainwater is guided by the horizontal protection mechanism and flows into the vertical protection mechanism, and then discharged through the vertical protection mechanism, which effectively reduces the amount of rainwater flowing on the surface of the slope body, reduces the impact force of rainwater scouring the surface of the slope body, thereby slowing down soil erosion and improving the protection of the slope body.

The utility model provides a hydraulic engineering building foundation pile, which relates to the technical field of hydraulic engineering and comprises a bearing platform, pile bodies are arranged at four corners of the bottom end of the bearing platform, pile tips are connected to the bottom ends of the pile bodies, adjusting mechanisms are embedded at four corners of the top end of the bearing platform, a plurality of anchor inserting mechanisms are embedded at the bottom ends of two sides of each pile body, and each anchor inserting mechanism comprises an inserting rod. One end of the inserting rod is connected with an inserting head, the other end of the inserting rod penetrates through the inner side of the pile body, the inserting rod is slidably connected with the pile body, a first inclined block is installed at the other end of the inserting rod, a second inclined block is arranged in the pile body, one side of the first inclined block makes contact with the outer side of the second inclined block, a threaded cylinder is installed at the top end of the second inclined block, and a threaded rod is installed on the inner side of the threaded cylinder. The top end of the threaded rod is rotationally connected with the top end of the pile body. Inserting rods on the two sides of the pile body can be effectively adjusted, the anchoring effect is improved, and high practical value is achieved.

The invention relates to the technical field of engineering materials, in particular to a pumpable water-resistant anchoring agent as well as a preparation method and application thereof. The anchoring agent is a two-component system, wherein a component A comprises a first sodium silicate solution, a second sodium silicate solution, a catalyst, a chain extender, a nano inorganic filler and a super-hydrophobic coupling agent; and the component B comprises an isocyanate substance, a plasticizer, hydrophobic isocyanate and polyether polyol. Hydrophobic components are introduced into a polyurethane curing network in a chemical bonding mode, a chemical crosslinking type water-resistant mechanism is constructed, and the long-term bonding strength retention rate and the impermeability of the anchoring agent in the underwater environment are remarkably improved by cooperating with the double effects of physical hole plugging and chemical hydrophobicity of the nanofiller subjected to hydrophobic modification. Meanwhile, by optimizing the component proportion and viscosity, the product has excellent pumpability, and is especially suitable for anchoring construction in wet or underwater environments such as deep tunnels and water conservancy projects.