61results about How to "Guaranteed anchoring effect" patented technology

The invention discloses an anchorage performance detection testing apparatus for carbon fiber adhesion reinforcement. The testing apparatus comprises a testing bench, a concrete test piece, a test fixture and a loading system. The reinforced concrete test bench is composed of a base, a blocking bed, a connecting bed and a stretching bed, carbon fiber sheets are adhered to the test piece, and a steel pressing plate and an anchor bolt are taken as auxiliary anchoring pieces; the test fixture is composed of an external covering steel plate, two inner clamping steel plates and a high-strength split bolt, strip-shaped steel teeth are formed on the surface of the external covering steel plate, pole steel teeth are formed on the surfaces of the inner clamping steel plates, the carbon fiber sheets are placed between the two inner clamping steel plates, the carbon fiber sheets and the two inner clamping steel plates are firmly adhered together by dipping glue, and the high-strength split bolt clamps the external covering steel plate, the inner clamping steel plates and the carbon fiber sheets; and the loading system is composed of a connecting screw rod, a tensile connecting steel plate, a tensile screw rod, a lifting jack and a sensor. The testing apparatus provided by the invention can quickly carry out an anchorage zone stress performance test on a concrete beam reinforced with adhesion of the carbon fiber sheets, and has the advantages of being convenient to make and simple to operate, and the like.

The invention discloses a magnesium-based metal-soluble bridge plug. The magnesium-based metal-soluble bridge plug comprises a central tube, a releasing shear nail, a spacer ring, an upper slip, an upper conical body, a rubber cylinder, a protective ring, a lower conical body, a lower slip, a base and an anti-blocking pattern tube; the spacer ring, the upper slip, the upper conical body, the rubber cylinder, the protective ring, the lower conical body and the lower slip separately sleeve the central tube from top to bottom in sequence, and the base is connected with the central tube through anexternal thread of the lower end of the central tube; the upper end of an outer setting cylinder is connected with an ignition setting tool through a T-shaped thread. Compared with the prior art, themagnesium-based metal-soluble bridge plug has the advantages that a magnesium-based soluble metal material is adopted, and the dissolution performance is reliable; an upper-and-lower bidirectional integral slip structure is adopted, the integral slip junction is broken when the thrust reaches 2-3 t, and the slips are opened; slip teeth adopt combinations of ceramic particles and alloy particles to ensure an anchoring effect and an anchoring force; the base has an anti-rotation structure design, and the plug is drilled conveniently when plug drilling is needed in a short time due to sand blockage or complicated well bottom conditions.

The invention relates to the technical field of coal mine anchor rod supporting, and discloses a novel coal mine high-strength anchor rod supporting device. An anchor rod supporting mechanism comprises an outer anchorage rod, an inner anchorage sleeve and an outer blocking fixing assembly, the inner anchorage sleeve can be well connected with the inner wall of a drill hole through a reinforcing structure extending in the radial direction, the inner anchorage sleeve is of a circumferential expansion structure, can easily stretch into the drill hole and can carry out special grouting through a grouting device, integrated performance of the inner anchorage sleeve and the inner wall of an anchorage hole can be ensured, the reinforcing structure can stretch into the rock layer of the anchoragehole, the segmented grouting anchorage manner enables anchorage slurry to be more fully filled, the anchorage reliability can be improved, the combination force with the wall of the anchorage drill hole can be improved, anchorage effect is ensured, in addition, for the fragile portion at the connecting position of the inner anchorage sleeve and the outer anchorage rod, through the manner of arranging multiple radial fins, the connecting property of the connecting position can be effectively improved, and the supporting capacity is ensured.

The invention relates to a small-sized soluble bridge plug. The small-sized soluble bridge plug comprises a central pipe and a compression sleeve sleeving the upper end of the central pipe and used for compressing a rubber cylinder; a limited C-shaped ring is sandwiched between the compression sleeve and the central pipe; the compression sleeve and the limited C-shaped ring are clamped and fixed by threads; the outer side wall of the central pipe is provided with a thread-like continuous protrusion along the compressed traveling direction of a compression assembly; the inner wall of the limited C-shaped ring is provided with a thread-like continuous groove engaged with the thread-like continuous protrusion. Compared with a traditional double-slip bridge plug, the matched structure of the compression sleeve and the limited C-shaped ring is fixed without expansion produced by relative movements of two components of an existing slip assembly, a setting stroke is greatly decreased, and setting by cable pumping is allowed; in addition, due to the omittion of one slip assembly, the use area on the central pipe is saved, rubber cylinder lengthening design is allowed, and accordingly the expansion degree of the rubber cylinder and improvement of setting capability with expansion increase are ensured.

The invention discloses a two arm-brace stretching method of an arc bridge tie bar cable, comprising the following steps of: sequentially installing a working anchor, a working anchor arm brace, a rear tool anchor, a tool anchor arm brace, a hydraulic jack and a front tool anchor, enabling the working anchor and the rear tool anchor in a loosening state, clamping a prestressing steel strand by using the front tool anchor and stretching an oil cylinder by using the hydraulic jack to feed oil and pushing the front working anchor for stretching the prestressing steel strand; stopping the stretching of the oil cylinder by using the hydraulic jack to feed oil when the hydraulic jack reaches the maximum stroke, clamping the prestressing steel strand by using the rear tool anchor to enable the front tool anchor to be in a loosening state and stretching the oil cylinder by using the hydraulic jack; carrying out next round of stretching operation after stretching the oil cylinder by using the hydraulic jack to return oil in place; and clamping the prestressing steel strand by using the working anchor when the prestressing steel strand reaches the requirement. In the stretching process, a working clamping piece of the working anchor is not forced, thus the invention solves the problems that the work clamping piece of the working anchor is repeatedly forced and teeth are blocked in the stretching process of a long steel strand cable in the prior art and prolongs the service life of the working anchor.

The invention discloses a hook-shaped steel core composite connecting piece prefabricated sandwiched heat insulation wallboard and a manufacturing method thereof .Internal and external acanthuses are formed by pouring concrete, a middle sandwich layer is a heat insulation board, and the three-layer structure is connected into a whole through hook-shaped steel core composite connecting pieces, wherein the hook-shaped steel core composite connecting pieces are hook-shaped reinforcing steel bar core continuous fiber composite connecting pieces and high-strength steel wire core model plastic compression molding steel core composite connecting pieces .The steel core composite connecting pieces of each kind are of a straight insertion type and an oblique insertion type .The internal and external concrete acanthuses are connected together through the straight insertion type hook-shaped steel core composite connecting pieces in a 90-degree orthogonal mode, and hook heads of the connecting pieces can hook an eternal acanthus internal reinforcing steel bar net; the internal and external wall acanthuses are connected together through the oblique insertion type steel core composite connecting pieces in a 45-degree oblique crossing mode .The prefabricated concrete sandwiched heat insulation external wall has the advantages of being high in anti-shear and anti-bending performance, good in heat insulation effect, high in construction efficiency, low in manufacturing cost, safe and reliable to use and the like .

The seabed anchor pipe installing process includes setting one mechanical vibrating unit in the top of anchor pipe, setting the anchor pipe on the seabed earth body, and inserting the anchor pipe to required depth for anchoring by means of mechanical vibration and the dead weight of the anchor pipe. Applying mechanical vibration can soften or even liquefy the earth body around the anchor pipe to reduce the resistance to the inserted anchor pipe. The present invention can ensure sufficient anchoring effect.

The invention provides a double T-shaped composite beam provided with prestressed steel tube concrete core rods, which is formed by utilizing the prestressed steel tube concrete core rods as tensioned lower flanges, adopting corrugated steel plates as web plates and pouring an upper flange top plate with high-strength concrete. The prestressed steel tube concrete core rods consist of steel tubes, intra-tube concrete and prestressed steel bars, and have high tension capacities; as the prestressed steel tube concrete core rods are combined with the corrugated steel web plates for use, the advantages are complemented, the shear capacity and flexural capacity of a crossbeam are improved, and the crossing ability of the crossbeam is improved. The composite beam has the advantages of light weight, great crossing ability, high bearing ability, high stiffness, low cost and the like, can be suitable for volume production in prefabricated part factories, can serve as a roof beam for constructing a 30-48m oversized-span single-storey industrial factory building, and as a floor beam for constructing a 21-30m large-span multi-storey industrial factory building, meets the requirements of industrial production on a large space, and saves land.

The invention discloses a construction method based on an interlocking type ecological geogrid. The interlocking type ecological geogrid is composed of an upper layer geogrid, a lower layer geogrid, an ecological protection layer, a connecting device and an anchoring device, the upper layer geogrid is a biaxial tension polypropylene geogrid, the ecological protection layer is turf or an ecologicalbag filled with nutrient soil and grass seeds, the lower layer geogrid is a steel-plastic geogrid, the upper layer geogrid and the lower layer geogrid are the same in size and specification except for materials, and circular through holes consistent in size and specification are formed in rib belt lap joint positions. The construction method based on the interlocking type ecological geogrid comprises eight steps. The structure is simple, the construction method is convenient, the reinforcing effect and greening effect of the geogrid on a rock-soil side slope can be effectively improved, waterand soil loss can be effectively treated, meanwhile, double benefits of side slope reinforcing and ecological protection can be achieved, the requirement for modern green engineering development is met, and important engineering significance is achieved.

The invention discloses a side slope anchoring device for municipal engineering, and relates to the technical field of side slope anchoring. The side slope anchoring device for municipal engineering comprises an anchoring pipe, wherein pricking needles are slidably connected to the anchoring pipe in the radial direction of the anchoring pipe, a force application mechanism is arranged in the anchoring pipe, the force application mechanism comprises a force application rod which is coaxially arranged in the anchoring pipe, a plurality of cams used for pushing out the pricking needles are arranged on the force application rod in a sleeved manner, and a limit assembly used for preventing the cams from moving in the axial direction of the force application rod is arranged on the force application rod; a clamping groove is formed in each cam, a clamping rod is slidably connected to the force application rod in the radial direction of the force application rod, and one end of the clamping rodis abutted against the inner walls of the clamping grooves; and a tightly-abutting assembly capable of tightly abutting one end of the clamping rod into the clamping grooves is arranged on the forceapplication rod, and the clamping rod is capable of being separated from the clamping grooves, so that a relatively-rotating state is formed between the cams and the force application rod. According to the side slope anchoring device for municipal engineering, when the pricking needles in a part of pricking needle assemblies on the anchoring pipe are blocked from continuing to be pushed out, the pricking needle assemblies of the other groups are capable of being pushed out to reach an expected depth, so that the anchoring effect of the anchoring device is ensured.

The invention discloses a prefabricated integral resin concrete expansion device which comprises a first unit, a second unit and a waterproof adhesive strip. The first unit and the second unit have the same structure; the first unit comprises expansion joint profile steel and a resin concrete base, two layers of anchoring ribs with preset included angles are welded to the expansion joint profile steel, and the expansion joint profile steel and the two layers of anchoring ribs are prefabricated on the resin concrete base; the expansion joint profile steel on the first unit and expansion joint profile steel on the second unit are connected through the waterproof adhesive strip. The prefabricated integral resin concrete expansion device is exquisite in structure, small in buried depth and small in structural size, installation notches are shallow, it is not needed to prearrange embedded parts on a girder body or reserve installation notches in the girder body, installation can be realizedon a surface pavement layer of a bridge, the girder body structure is not damaged, the integrated design is not influenced, and the prefabricated integral resin concrete expansion device is especially suitable for thin-walled girder bodies.

The invention relates to the field of continuous girder cantilever construction, in particular to a concrete continuous girder cantilever construction load balance adjusting device and method. Temporary buttresses are arranged at the position, located at the two sides of a girder pier body, of a girder bearing platform, the upper end of the girder pier body bears a girder body, and finish rollingsteel bars are embedded at the positions, located at the two sides of the girder bearing platform, between the girder bearing platform and the girder body. The adjusting method includes the steps of pre-embedding the finish rolling steel bars, constructing the continuous girder main girder pier body, setting the temporary buttresses and putting up a temporary support, pouring concrete to completegirder body construction, fixedly connecting the girder body and the girder pier body to form a T-structure form and conducing full-bridge closure. The concrete continuous girder cantilever construction load balance adjusting device and method are provided.

The invention discloses a pre-buried anchor rod connecting structure penetrating through a pre-built building and a construction method thereof. The connecting structure comprises a pre-built mattress layer connected to the lower portion of a pre-built foundation, a foundation reinforcing pile connected to the interior of a soil body below the pre-built mattress layer, a top beam connected to the top of a supporting pile, an anchor rod free section connected to the interior of the top beam and the interior of the pre-built mattress layer in a penetrating mode in advance, an anchor rod connected to the tail end of the anchor rod free section and connected to the lower portion of the existing ground, and a cement grouting body connected to the periphery of the anchor rod in a sleeving mode. According to the pre-buried anchor rod connecting structure penetrating through the pre-built building and the construction method thereof, through arrangement of the cement grouting body, a foundation is provided for anchoring advantageously; the anchor rod obliquely extends downwards, and thus anchoring force can be provided in the maximum range; through arrangement of the anchor rod free section, the early-stage anchoring effect can be ensured; and through arrangement of an anchoring conversion piece and an elastic pipe, stress transmission, transition and protection of anchoring of the anchor rod are facilitated. According to the pre-buried anchor rod connecting structure penetrating through the pre-built building and the construction method thereof, construction of the pre-built building is not affected, and the influence of too much construction period and construction cost on a later-period adjacent foundation pit excavation project is avoided.

The invention provides anchoring equipment. The anchoring equipment comprises a rack, a sliding portion and a propeller. The sliding portion is slidingly connected with the rack and used for moving relative to the rack. The propeller is arranged on the sliding portion, slidingly connected with the sliding portion and used for driving a drill rod or an anchor rod to move. In other words, one propeller can be used in two purposes, the anchor rod and the drill rod can be propelled, and therefore the production cost of the anchoring equipment is reduced; furthermore, when the anchor rod or the drill rod is propelled, a sliding rail is fixed, the propeller cannot rotate in the up-and-down sliding process, and therefore the occupied space of the anchoring equipment is reduced; and in addition, all the procedures from drilling to anchoring can be completed through one propeller, the working environment of workers is improved, and the working efficiency of anchoring is improved.

The invention relates to the field of tension members used for building formworks and provided with threads enabling the building formworks to be fastened or resistant to tension, in particular to an installation anchoring device of a composite heat preservation formwork and a using method of the installation anchoring device. The installation anchoring device of the composite heat preservation formwork comprises the composite heat preservation formwork (11), an inner formwork (12) and a keel (13) and is characterized by further comprising an outer sleeve (21), a pressing cover (22), an inner sleeve (23), an opposite-pull anchoring connecting piece (3), an outer pull screw (41), an inner pull screw (42), an outer square pipe (51), an inner square pipe (52), an outer pressing plate (61), an inner pressing plate (62), an outer nut (71) and an inner nut (72). The using method of the installation anchoring device of the composite heat preservation formwork comprises the following steps in sequence that (1), a formwork is erected; 2, a sleeve is arranged; 3, a connecting piece is arranged; 4, a screw rod is arranged; 5, the formwork is fixed; 6, pouring is carried out; and 7, sealing is carried out. The construction quality is high.

The invention belongs to the technical field of geotechnical engineering anchoring, and particularly relates to a self-drilling type combined grouting anchor rod with a grout-stopping plug and suitable for a soft rock stratum. The self-drilling type combined grouting anchor rod comprises a grouting anchor rod body, a drill bit mounted at the top end of the grouting anchor rod body and an expansion rubber grout-stopping pipe mounted at the tail part of the grouting anchor rod body; a grouting cavity is formed in the grouting anchor rod body; a grouting pipe is connected to the interior of the grouting cavity; an outer side grout-stopping mechanism is installed at the end, away from the drill bit, of the grouting anchor rod body; and a supporting mechanism is installed on one side of the outer side grout-stopping mechanism. The grouting anchor rod body is matched with the drill bit to drill the anchor rod into the rock stratum, and the expansion rubber grout-stopping pipe and the grouting cavity are matched, so that the grouting anchor rod body does not need to be pulled out, hole sealing grouting is directly conducted, the situation that the grouting pipe is difficult to descend due to the fact that the interior of a drilled hole collapses again after drilling is avoided; and through cooperation of the outer side grout-stopping mechanism and the supporting mechanism, when the crushing degree of surrounding rock where the drilled hole is located is relatively high and cracks are relatively more, the drilled hole is well sealed, relatively high grouting pressure is guaranteed, and the anchoring effect is guaranteed.

The invention belongs to the technical field of tunnel engineering, and particularly relates to a subway tunneling underground excavation method. The method comprises the two steps of stratum combination engineering property model calculation and tunnel shallow-buried excavation construction. The stratum combination engineering property model calculation step comprises the steps that a stratum along a tunnel is divided into a stratum group and a subgroup, and the divided stratum combination is expressed through the stratum group and the subgroup; and selecting stratums in a range of 50m belowthe earth surface and the tunnel bottom for combination, substituting the stratums into the stratum combination engineering property model for calculation and analysis, and then performing a tunnel shallow-buried excavation construction process. According to the method, the engineering geological stratification within the range of 50 m of the influence depth of tunnel engineering construction is divided and deeply analyzed, so that the engineering geological stratification of the whole site is generally generalized, the construction process can be closely followed, and it is ensured that the shallow-buried excavation tunnel construction process is safely and smoothly carried out.

The invention relates a girdle truss, a manufacturing method of the girdle truss and a super high-rise building giant frame. The girdle truss comprises an upper chord, a lower chord and a corrugated steel web, wherein the upper chord adopts a steel tube concrete-filled upper chord, the lower chord adopts a prestressed steel tube concrete-filled core rod, and the upper end and the lower end of thecorrugated steel web are in rigid connection with the upper chord and the lower chord respectively to form the girdle truss; and a plurality of honeycomb through holes are formed in the corrugated steel web at equal intervals. According to the girdle truss, the manufacturing method of the girdle truss and the super high-rise building giant frame, the steel tube concrete-filled upper chord is usedas an upper chord member of the girdle truss, so that the compression bearing capacity and rigidity of the upper chord of the girdle truss are enhanced; the prestressed steel tube concrete-filled corerod is used as a lower chord member of the girdle truss, so that the tensile bearing capacity and rigidity of the lower chord of the girdle truss are improved; the corrugated steel web with the honeycomb through holes are adopted to replace a girdle truss diagonal web member, so that the shear bearing capacity is improved, daylighting performance and permeability of the girdle truss are improved,and girdle truss construction is simplified. The girdle truss is excellent in stress performance and has a good application prospect.

The invention belongs to the field of steel pipe cast-in-place piles, and discloses a double-layer extrusion type anchor plate for a prestressed steel pipe cast-in-place pile and a connection structure. The technical scheme of the connection structure is that upper structure reinforcement is anchored in an upper anchor plate and a lower anchor plate through a two-way extrusion cone to realize theconnection between an upper structure and the double-layer extrusion type anchor plate; prestressed reinforcement is anchored on the upper anchor plate, and the connection between the upper anchor plate and the lower anchor plate is realized through two rings of bolts on the inner side and the outer side. Through the implementation of the connection structure, the following beneficial effects areproduced: the structure is efficient and reasonable, complicated anchoring is not needed, and the upper structure, the double-layer extrusion type anchor plate and the prestressed steel pipe cast-in-place pile are connected into a stressed whole. The construction efficiency is high, welding is not needed, and the quality is controllable. Pouring holes are formed in the upper anchor plate and the lower anchor plate to facilitate grouting, and material consumption is reduced.

The invention relates to a fixing device for an operation platform for a shielding wall of an AP1000 nuclear island. The device comprises a tail anchor bar. One end of the tail anchor bar is machined with a threaded section and the other end of the tail anchor bar is bent to some degree. The thread section of the tail anchor bar is fixedly connected with a sleeve. After the sleeve is connected with the tail anchor bar, the overall part is poured into the interior of the shielding wall. The other end of the sleeve is connected with a connecting rod, on which an installing plate is fixed. The installing plate is fixed with an operation platform framework. The fixing device for the operation platform for the shielding wall of the AP1000 nuclear island has following beneficial effects: due to the fact that the fixing device for the operation platform is fixedly installed into the interior of a poured wall, loads of the overall fixing device can be supported by the wall, thereby facilitating fixed installation of the operation platform and ensuring safety and stability of the operation platform; and conduction efficiency is improved and quality is ensured.

The invention discloses a modern ship mooring positioning device. The modern ship mooring positioning device comprises a buoy body, an anchor chain, a balancing weight, a limiting roller and a mounting plate; an anchor chain is fixed to the lower end face of the buoy body; a functional plate is mounted on the buoyancy tank; limiting rollers are mounted on the function plate and the floating box; asupporting spring is fixed at the bottom end of the functional plate; the transmission gear is connected with a trigger plate, the trigger plate is installed on the buoyancy tank, a pulley block is installed on the inner side of the trigger plate, the top of the pulley block is attached to the outer side of a stabilizing plate, the stabilizing plate is fixed to a bottom shaft, the bottom shaft isinstalled on the inner side of an installation plate, and meanwhile the mounting plate is fixed to the top of the buoyancy tank. According to the modern ship mooring positioning device, a novel structural design is adopted, so that the bottom end of an anchor chain in the device can adapt to a complex seabed environment, the fixing effect of the anchor chain on an upper structure is guaranteed, meanwhile, a structure capable of positioning an oil and gas pipeline is designed, and the overall stability of the device is improved.

The invention provides a double T-shaped composite beam provided with prestressed steel tube concrete core rods, which is formed by utilizing the prestressed steel tube concrete core rods as tensioned lower flanges, adopting corrugated steel plates as web plates and pouring an upper flange top plate with high-strength concrete. The prestressed steel tube concrete core rods consist of steel tubes, intra-tube concrete and prestressed steel bars, and have high tension capacities; as the prestressed steel tube concrete core rods are combined with the corrugated steel web plates for use, the advantages are complemented, the shear capacity and flexural capacity of a crossbeam are improved, and the crossing ability of the crossbeam is improved. The composite beam has the advantages of light weight, great crossing ability, high bearing ability, high stiffness, low cost and the like, can be suitable for volume production in prefabricated part factories, can serve as a roof beam for constructing a 30-48m oversized-span single-storey industrial factory building, and as a floor beam for constructing a 21-30m large-span multi-storey industrial factory building, meets the requirements of industrial production on a large space, and saves land.

The invention discloses a side slope anchoring device for municipal engineering, and relates to the technical field of side slope anchoring. The force application mechanism includes a force application rod coaxially arranged in the anchor pipe, the force application rod is sleeved with a plurality of cams for pushing out the puncture needle, and the force application rod is provided with a cam for preventing the cam from being along the axial direction of the force application rod. The moving limit component; the cam is provided with a clamping slot, the force applying rod is connected with a clamping rod along its radial direction sliding, and one end of the clamping rod is abutted on the inner wall of the clamping slot; the force application rod is provided with an energy One end of the clamping rod is pressed against the abutting component in the clamping slot, and the clamping rod can be disengaged from the clamping groove, so that the cam and the force applying rod are in a state of relative rotation. In the present invention, when the lancet in some lancet assemblies on the anchor tube is blocked and cannot be pushed out further, other groups of lancet assemblies can be pushed out to the desired depth, which ensures the anchoring effect of the anchoring device.

The invention discloses an anchor rod sealing structure, an anchor rod and an anchor rod injection molding method, and relates to the field of supporting equipment. According to the technical scheme, the anchor rod sealing structure comprises a shell fixedly connected with a rod body of the anchor rod, and an inner cavity penetrating through the two ends is formed in the shell; two step structures of which the inner diameters are sequentially reduced are arranged in the inner cavity, and the two step structures respectively form a first-stage chamber corresponding to a first-stage sealing state and a second-stage chamber corresponding to a second-stage sealing state; the inner diameter of the first-stage chamber is larger than that of the second-stage chamber; and a valve element is arranged in the inner cavity in a sliding mode, and the valve element moves in the axial direction of the inner cavity. The sealing structure has the beneficial effects that: the sealing structure adopts one-way self-locking and sealing design, can achieve first-stage sealing and second-stage sealing, guarantees that liquid in the rod body is sealed after liquid injection, and keeps the pressure in the rod body for a long time. The sealing structure can display the water pressure on the side face while primary and secondary sealing is conducted, and can provide effective reference for safety of an underground roadway.

The invention belongs to the technical field of geotechnical engineering anchoring, in particular to a self-drilling combined grouting anchor with a grout stopper suitable for soft rock formations, comprising a grouting anchor body and a grouting anchor installed on the top of the grouting anchor body The drill bit and the expansion rubber grout stop pipe installed at the tail of the grouting anchor body, the inside of the grouting anchor body is provided with a grouting cavity, and the inside of the grouting cavity is connected with a grouting pipe, the The end of the grouting anchor body away from the drill bit is equipped with an outer grout stop mechanism, and a support mechanism is installed on one side of the outer grout stop mechanism, and the anchor rod is drilled into the rock formation through the set grout anchor rod body and the drill bit, and then Cooperate with the expansion rubber grout stop pipe and the grouting cavity, without pulling out the grouting anchor body, directly seal the hole and grout, avoid the re-collapse in the drilled hole after drilling and make it difficult to lower the grouting pipe, through the set outer grout stop mechanism and support With the cooperation of the mechanism, when the surrounding rock where the drilling is located is highly broken and there are many cracks, the drilling hole is well sealed to ensure a high grouting pressure and the anchoring effect is guaranteed.

The invention discloses a replaceable anchor bolt assembly with adjustable anchoring length for a concrete foundation. The replaceable anchor bolt assembly comprises a steel framework, an anchor cylinder, an anchor rod, a sealing assembly and a nut assembly, wherein the steel framework is fixedly connected with the anchor cylinder and can be pre-buried in the concrete foundation, the anchor rod isfixedly connected with the anchor cylinder through threads, and the sealing assembly is arranged between the anchor rod and the anchor cylinder. Due to the structure that the anchor cylinder is fixedly connected with the steel framework, the positioning precision of the anchor rod can be guaranteed, and the anchoring performance of the anchor rod in the foundation can be guaranteed; the anchor cylinder and the anchor rod are in threaded connection, so that the replaceability of the anchor rod is realized, and the combination tightness of the anchor cylinder and the anchor rod is enhanced; andthe sealing assembly is arranged between the anchor rod and the anchor cylinder, so that the sealing performance of the anchor bolt in the mounting process is guaranteed. All components of the replaceable anchor bolt assembly are organically combined together, the replaceable anchor bolt assembly and the concrete foundation can form a good force bearing whole, and the integrity and replaceabilityof the anchor bolt assembly are achieved.

The invention discloses a construction method based on an interlocking ecological geogrid. The interlocking ecological geogrid is composed of an upper geogrid, a lower geogrid, an ecological protection layer, a connecting device and an anchoring device. The upper geogrid The grid is a biaxially stretched polypropylene geogrid, the ecological protection layer is turf or an ecological bag filled with nutrient soil and grass seeds, the lower geogrid is a steel-plastic geogrid, the upper geogrid, and the lower geogrid remove the material The outer dimensions are the same, and circular through holes with the same size and specification are set at the joints of the ribs. The invention also provides a construction method based on an embedded locking ecological geogrid, which consists of eight steps. The invention has a simple structure and convenient construction method, can effectively improve the reinforcement effect and greening effect of the geogrid on rock and soil slopes, can effectively control water and soil loss, and can realize double benefits of slope reinforcement and ecological protection at the same time, meeting modern green projects It is of great engineering significance to meet the needs of development.