649 results about "Rock bolt" patented technology

A bilateral expanding excavation construction method for a middle pilot tunnel of a tunnel is provided. Section or excavation width of the middle pilot tunnel is generally not larger than that of a common double-line or double-lane tunnel; a step construction method is adopted, and the construction method is the same as that of a common double-line or double-lane tunnel; and the construction method is familiar to constructors, and the construction difficulty is avoided. A primary support section of the middle pilot tunnel can be expanded and excavated after being closed by at least 3 meters; if a side tunnel face is stable, and the problem of the operation height of manual installation of a steel frame and an anchor rod is solved, one-time excavation and support can be achieved, and the construction is more convenient; or otherwise, a side tunnel is excavated according to a two-step or three-step method. The primary support of the middle pilot tunnel can be timely closed; the primary support of the side tunnel and the primary support of the middle pilot tunnel can be completely connected in sequence, and various errors and deformation influences of surrounding rocks and the supportare left at an inverted arch part for treatment; and the construction progress is basically the same as that of the common double-line or double-lane tunnel.

The present application relates to geotechnical engineering technical field, specifically to a kind of slope stabilizing mechanism and its construction technology, wherein, the slope stabilizing mechanism includes moving assembly, moving assembly includes expansion part and drive structure.Expansion part has the contraction state along the radial contraction of anchor rod and the expansion state along the radial expansion of anchor rod.Drive structure drives expansion part to move on anchor rod axially, and control expansion part switches between contraction state and expansion state.When expansion part is in expansion state and moves along anchor rod axially, the hole wall of drilling can be continuously wiped, the low-intensity, low-permeability mud skin structure formed on the surface of drilling hole wall due to drilling construction is broken, the loose drill cuttings and collapse on the surface of hole wall are removed, so that the surface roughness of drilling hole wall is improved, and then the interfacial bond strength between drilling hole wall and grouting body is enhanced, to avoid mud skin, drill cuttings and other impurities to hinder the effective combination of grouting body and hole wall.

This utility model discloses a novel anchor bolt suitable for layered soft rock tunnels with different large deformation levels, relating to the field of soft rock tunnel support technology. It includes a first rod body, a second rod body, and an extension mechanism. The extension mechanism is disposed between the second rod body and the first rod body. The end of the first rod body is connected to an end cap, and a pad is disposed between the end cap and the first rod body. This utility model employs the aforementioned novel anchor bolt suitable for layered soft rock tunnels with different large deformation levels. The arrangement of the first and second rod bodies enhances the stability of the anchor bolt, resulting in more stable bonding anchoring force and higher pull-out resistance compared to simple metal anchor bolts, while also adapting to complex working conditions. The extension mechanism addresses the issue of easy deformation in soft rock, better utilizing the anchor bolt's support function. The material of the second rod body provides excellent adhesion and corrosion resistance, forming a high-strength anchoring interface, and its connection with the extension device enhances the stability of the device.

This invention discloses a tunnel segment damage repair device, comprising a base plate, clamping devices on both sides of the base plate, and a supporting excavation device on the upper side of the base plate. The supporting excavation device includes a support ring with stepped holes and anchor rods inside the stepped holes. A circular shaft is rotatably connected to the base plate, and the circular shaft is driven to rotate and move axially by a driving device. A disc is fixedly connected to the upper end of the circular shaft, and the disc has a slag discharge channel. A first blade is fixedly connected to the side wall of the slag discharge channel. A sliding groove is provided at the bottom of the disc, and a sliding plate is slidably connected within the sliding groove. A second blade is fixedly connected to the outer end of the sliding plate. A sliding block is slidably connected to the support ring, and a support rod is hinged between the sliding block and the sliding plate. This invention allows the support wheel to continue rolling onto a second arc block. Because the second arc block has the largest diameter, the outer contour of the second blade is the largest, exceeding the diameter of the segment rupture. This is suitable for excavation operations in confined spaces, facilitating the subsequent formation of stepped pouring blocks, and providing greater support strength than direct filling repair methods.

The utility model discloses a kind of concrete and steel mixed structure sealing silo, belong to building construction technical field, including the silo wall and steel structure storehouse top poured by concrete, steel structure storehouse top is set in the top of silo wall, and concrete is poured at the connecting place of steel structure storehouse top and silo wall, forms sealed storehouse body, ring beam is equipped in the top of silo wall and first installation slot being set on the top side wall of silo wall, steel structure storehouse top includes main beam and lap joint, lap joint is set in the end of main beam, first installation hole is equipped on the bottom surface of lap joint, anchor bolt assembly is pre-buried in first installation slot, anchor bolt assembly includes anchor rod, backing plate and fastener, one end of anchor rod is pre-buried into silo wall, the other end is exposed, backing plate is sleeved on the exposed part of anchor rod, and backing plate is set on the bottom surface of first installation slot, lap joint is installed into first installation slot, by staggering concrete pouring gap and the gap of main beam and first installation slot, the sealing of silo is improved.

The utility model relates to the field of rock quality side slope afforestation planting technology, concretely is a kind of rock quality surface planting soil fixation afforestation structure, including fixed base, chuck is fixedly arranged on fixed base, chuck upper side is provided with cover, limit slot is equipped on fixed base, and threaded section is equipped in the limit slot of fixed base, cover is cooperatively sleeved on threaded section, chuck and cover adjacent side are all equipped with annular groove, stop lever is set between the two groups of fixed base, one group of mounting seat is rotatably arranged at the both ends of stop lever, and the arc plate matched with annular groove is fixedly set on mounting seat, when carrying out soil fixation operation, the arc plate of the both ends of stop lever is installed in the annular groove on the two groups of chuck adjacent, can be quickly installed to stop lever even if circumferential rotation is generated when anchor rod anchors, improve installation efficiency, and the setting of annular groove makes a group of fixed base can be combined and connected with multiple groups of adjacent and different direction fixed base, improves soil fixation effect.

The present application relates to the technical field of tunnel construction, in particular to a tunnel shield support non-blasting excavation method and equipment, the excavation method comprises four steps of drilling and pumping, concrete solidification, excavation of the surrounding rock and waterproof treatment, the method forms a concrete closed-loop shield support system by drilling and pumping in advance, a stable closed-loop support structure is formed before the excavation of the surrounding rock, effectively preventing the large deformation of soft rock and the rock burst phenomenon caused by stress release in hard rock during tunnel excavation; the system anchor rod, concrete spraying construction and explosive blasting process in the traditional support system are cancelled, which is safe and reliable, and has high economic benefits. The excavation equipment shares a propulsion mechanism through the spiral drill module and the reverse circulation down-the-hole drill module, without the need for separate propulsion devices for the two drill bits, the feed is achieved by driving the arc-shaped limiting piece with a chain, and the limiting block, the worm and the ring worm gear transmission self-locking function are matched to ensure the positioning accuracy of the drill bit during drilling, and to reduce the complexity of the equipment structure and the purchase and maintenance cost.

A drop hammer impact testing device for anchor bolts or anchor cables includes a lifting mechanism, a main frame, a hammer-grabbing device, a guide structure, a connecting structure, an impact force transmission mechanism, a hammer body, and a lifting rod. The main frame has a top plate at its top and a bottom plate at its bottom. The guide structure is located within the main frame, and the lifting mechanism is located on the upper surface of the top plate. The output end of the lifting mechanism is connected to the hammer-grabbing device, and the hammer body is located at the bottom of the hammer-grabbing device. Both the hammer-grabbing device and the hammer body are slidably fitted with the guide structure. This drop hammer impact testing device for anchor bolts or anchor cables solves the problem that the testing of anchor bolt or anchor cable support materials in related technologies focuses on static load testing, resulting in a lack of means to test the quality of anchor bolt or anchor cable support materials under impact loads.

This invention discloses a method for coordinated unloading-support-filling roadway protection in a longwall mining face of a steeply inclined coal seam. The method includes: arranging pre-reinforcing anchor bolts and cables at certain intervals in the transport roadway to reinforce the transport roadway in advance; pre-excavating a gap in the upper side of the transport roadway by blasting, and adding reinforcing anchor bolts and cables to the cross-section of the pre-excavated gap; arranging pressure-relief boreholes at certain intervals in the center of the coal seam roof at the pre-excavated gap, and implementing pressure-relief blasting after the support is moved; using I-beams and retractable modular roadway protection supports as the first and second layers of rock-blocking support, respectively; filling and sealing the goaf area above and on the sides of the retractable modular roadway protection supports with local filling materials; and arranging single hydraulic props for delayed support at a certain distance from the coal wall of the lagging face inside the roadway along the goaf. This method provides good support, significantly increases the speed of roadway retention in a longwall mining face of a steeply inclined coal seam, and effectively ensures safe and normal production.

This utility model discloses a positioning and leveling device for a prestressed anti-buoyancy anchor steel pad, including a base, a leveling bracket, a fixing mechanism, a plumb bob, and multiple spirit levels. The base includes a first mounting plate and a second mounting plate connected sequentially in the vertical direction. A mounting groove for accommodating the steel pad is provided in the middle of the top surface of the first mounting plate. The bottom surface of the mounting groove is parallel to the top surface of the first mounting plate. The depth of the mounting groove is less than the thickness of the steel pad. The plumb bob is located in the middle of the bottom surface of the second mounting plate. Multiple spirit levels are located in the area of ​​the top surface of the first mounting plate outside the mounting groove. The leveling bracket includes three legs hinged to the bottom of the second mounting plate. The length of the legs is adjustable. The fixing mechanism is used to fix the steel pad in the mounting groove. The device provided by this application improves the positioning and leveling accuracy of the steel pad after welding, meets the requirements of high-precision prestressed construction, and reduces the impact on subsequent prestressed anti-buoyancy anchor tensioning construction.

The utility model discloses a kind of suspended follow-up tunnel work area top rockfall protection devices, tunnel protection technical field, be set in the top of one side tunnel work area of midseptum, including being set in the tunnel top surface along several groups of suspension anchor rod of tunnel axial direction, suspension anchor rod bottom slidingly arranged T beam;T beam includes transverse wing plate, and the length median line of transverse wing plate is fixedly connected vertical web;Multiple roller supports are fixed in vertical web bottom, the bottom rotationally connected adjusting roller of each roller support, adjusting roller is fixedly connected with protective screen keel;Multiple protective screen keel top surface is flush, protective screen is laid on multiple protective screen keel top surface, and is fixedly connected with protective screen keel top surface.The adjusting roller of being set in the bottom of T beam, protective screen keel, protective screen is set on protective screen keel, so that protective screen can adapt to arch tunnel, suspension anchor rod is set simultaneously, and T beam moves on suspension anchor rod, can make protective screen move along the axial direction of tunnel.

This invention relates to the fields of computational mechanics and rock engineering, and particularly to a numerical simulation method for end-anchored rock mass engineering based on DDDA (Digital Directed Amplification and Analysis). The method includes: constructing a circular element discontinuous deformation analysis numerical model according to actual engineering conditions; performing discontinuous deformation analysis numerical calculations; analyzing the calculation results of the unanchored model to preliminarily determine the anchoring scheme; performing discontinuous deformation analysis numerical calculations again; determining whether the model contains unstable blocks, adjusting the anchoring scheme, and repeating the aforementioned steps until the model stabilizes, thus completing the design of the rock mass engineering anchoring scheme. This invention establishes a numerical simulation method capable of accurately simulating the interaction between anchor bolts (anchor cables) and rock mass, and integrating anchoring scheme design, stability assessment, and dynamic parameter optimization functions. It achieves accurate prediction of the deformation and failure behavior of anchored rock mass and optimizes anchoring design, featuring high simulation accuracy and strong practicality.

This utility model discloses a tunnel support structure, belonging to the field of tunnel support technology. It includes a support frame, with a concrete layer filling the space between the support frame and the tunnel wall. The support frame comprises multiple arc-shaped top plates connected by bolts, with L-shaped support plates bolted to both ends of each arc-shaped top plate. Multiple anchor bolts fixed to the tunnel are installed on the support plates, and a bottom plate is bolted between two support plates. This utility model, through the support frame and concrete layer, ensures sufficient support strength by using a precast support frame made of steel reinforcement and concrete. The concrete layer fills the gap between the support frame and the tunnel wall, preventing collapse. The support frame is assembled from multiple arc-shaped top plates, support plates, and a bottom plate, facilitating transportation and installation. All arc-shaped top plates, support plates, and bottom plates are precast, ensuring uniform quality and stable structural strength. The anchor bolts further enhance the stability of the support frame.

The utility model relates to the technical field of geotechnical engineering supporting equipment, and disclose a kind of side slope anchor rod positioning support, including support frame, the support frame top is provided with positioning mechanism and moving mechanism;The positioning mechanism includes support assembly and positioning assembly, and support assembly is located at the side of positioning assembly.By setting positioning mechanism, by setting first motor drives first reciprocating screw rod to rotate, to adjust the height of first support box according to the height of side slope and the specific position of anchor rod needing positioning, to effectively carry out the positioning and processing of anchor rod, facilitate operator to operate;By setting moving mechanism, by setting second motor drives second reciprocating screw rod to rotate, so that second reciprocating screw rod drives second support plate to move, to adjust the height of second hydraulic rod and drill rod, to carry out positioning drilling operation to different positions of side slope, to effectively carry out side slope protection work.

This utility model relates to the field of expansion joint technology, specifically disclosing a high-temperature exhaust expansion joint structure, including a steel structure frame detachably connected to the top of the exhaust system pipeline. The top of the steel structure frame is formed with an air inlet, and support frames are fixedly connected to the top of the steel structure frame on both sides of the air inlet. A skin is detachably connected between the two support frames. Several anchor rods are vertically arranged inside the steel structure frame, and several fastening joints for positioning the anchor rods are provided at the bottom of the steel structure frame. The steel structure frame is filled with a heat insulation and sound absorption layer, which solves the problem that traditional exhaust expansion joints use external insulation wrapping, which is inconvenient for on-site installation.

The application provides a stone anchoring structure and a use method thereof, and belongs to the technical field of bonsai modeling. The stone anchoring structure comprises an anchor rod and a supporting leg. The supporting leg is fixedly connected with a stone and a flowerpot respectively. The supporting leg has a modeling structure, which is used for adjusting the height or angle of the stone. The use method of the stone anchoring structure comprises the following steps: drilling a hole in the stone; injecting an adhesive into the hole, inserting the anchor rod, and fixedly connecting the anchor rod with the supporting leg; adjusting the height or angle of the stone by adjusting the modeling structure; and connecting the supporting leg with the flowerpot. The stone anchoring structure and the use method thereof solve the problems that the base structure of a stone-attached bonsai is heavy and cannot be adjusted.

This invention relates to the field of tunnel drilling and blasting technology, and particularly discloses a method, medium, and equipment for tunnel anchor drilling based on three-dimensional point clouds. The tunnel anchor drilling method includes: scanning the surface of the initial shotcrete in the tunnel working section using lidar to obtain a three-dimensional point cloud model of the initial shotcrete surface; extracting the two-dimensional point cloud contour of the circumferential anchor cross-section based on the three-dimensional point cloud model of the initial shotcrete surface to obtain a two-dimensional physical contour model of the initial shotcrete surface; constructing the parametric equation of the anchor axis according to the designed anchor parameters, and solving it simultaneously with the two-dimensional physical contour model of the initial shotcrete surface to obtain the axis distance parameter and the actual drilling coordinates; and using a drilling-anchor-injection integrated trolley to perform drilling operations at a designed angle based on the axis distance parameter and the actual drilling coordinates. This invention directly solves for the actual drilling coordinates of the anchor based on the point cloud cross-section, overcoming the interference of unevenness of the initial shotcrete surface on anchor positioning and improving the accuracy of anchor placement.

This application discloses a prefabricated anchor bolt and support frame connector for rapid detection of locking force, relating to the technical field of engineering support connection structures. It includes an outer frame fixed to the support frame, two clamping plates slidably disposed within the outer frame for clamping the anchor bolt, and a locking module disposed on the outer frame for pressing the two clamping plates against the anchor bolt. The locking module is equipped with a deformation unit for feedback of the clamping force of the corresponding clamping plates against the anchor bolt, and the deformation unit has a specific deformation force value. This application transforms the complex force problem into a simple shape observation problem, reducing reliance on worker skills, ensuring a single operating standard, and guaranteeing uniform and compliant locking force for each anchor bolt.

This invention discloses a stiffness-adjustable active-passive coordinated load control structure for ultra-high embankment tunnels, relating to the field of tunnel support structure technology. To address the problem of existing high-embankment buried tunnels where structural stiffness cannot be adjusted and it is difficult to actively guide and disperse embankment pressure under embankment heights exceeding 80 meters, the following technical solution is proposed: It includes corrugated steel plates, anchor bolts, granular filler material, and a metal mesh. The corrugated steel plates are circumferentially assembled to form the innermost layer of the tunnel support; the granular filler material, wrapped in the metal mesh, is placed around the outside of the corrugated steel plates; the anchor bolts penetrate the granular filler material, the metal mesh, and the corrugated steel plates. This invention achieves active control of structural stiffness by adjusting the overlap length of the corrugated steel plates through the sliding adjustment of the anchor bolts within the elongated bolt holes. Simultaneously, the flexible enclosure formed by the granular filler material and the metal mesh can guide and disperse the pressure of the overlying embankment.

The utility model discloses a kind of connecting structure system of anti-floating anchor rod and foundation bottom plate, including foundation bottom plate, foundation cushion, anchor rod core, shear bending rib, anchor head steel plate, expansion waterstop, stress dispersion steel plate, sealing paste.The foundation bottom plate is cast-in-place reinforced concrete slab;The foundation cushion is cast-in-place plain concrete thin plate;The anchor rod core is PSB prestressed high-strength steel;The shear bending rib is the anchor head two ends bending U-shaped steel bar arranged in foundation bottom plate;The anchor head steel plate is steel hollow plate, is sleeved on axial PSB prestressed high-strength steel and is fixed together by upper and lower two limiting high-strength bolt connection;The expansion waterstop is set on limiting high-strength bolt;The stress dispersion steel plate is set on foundation cushion;The sealing paste is set in stress dispersion steel plate below.The utility model has the advantages of good corrosion resistance, high anti-permeability, fast construction speed, energy saving and environmental protection, and its technical and economic benefits are outstanding.

This utility model discloses a pressure-type anti-buoyancy anchor waterproof structure. A frustum-shaped water-storing buffer sleeve is fixedly installed on the outer wall of the middle part of the protective sleeve. The interior of the frustum-shaped water-storing buffer sleeve is filled with a drainage filling layer. Inclined water distribution pipes are symmetrically fixedly connected to both ends of the frustum-shaped water-storing buffer sleeve. This utility model utilizes the frustum-shaped water-storing buffer sleeve to provide a certain buffer area for groundwater to flow upward, preventing groundwater from directly seeping upward along the edge of the protective sleeve. The drainage filling layer plays a role in shaping and supporting the frustum-shaped water-storing buffer sleeve, improving its structural strength and preventing it from being squeezed and deformed underground. Water can flow inside the drainage filling layer, while the inclined water distribution pipes divert the flowing water, discharging it to the far sides of the anchor rod, allowing it to re-infiltrate into the underground soil, thus significantly reducing the amount of groundwater flowing to the surface.

The application discloses a kind of steel pipe confined reinforced concrete column anti-void construction system and its use method, comprising: expansion connecting anchor bolt assembly, the expansion connecting anchor bolt assembly includes anchor bolt part and nut part;The anchor bolt part includes anchor bolt rod, is set to the expansion claw for being supported and positioned by back tension expansion outside the rear end of the anchor bolt rod, is set to the internal thread hole in the rear end of the anchor bolt rod;The nut part includes connecting section, is set to the connecting screw rod for being threadedly connected with the internal thread hole at the front end of connecting section, is set to the nut at the rear end of connecting section;Hoop assembly;Through fixed anchor rod is fixed on the steel pipe wall at hoop face, subsequent pouring concrete can be effectively connected with preset anchor rod, ensure that anchor rod can effectively back tension to steel pipe wall after hoop device is subsequently removed, effectively solve the technical problem of concrete column void.

This utility model specifically discloses a drill bit cleaning mechanism for an anchor drilling rig, including a bracket, a support seat slidably mounted on the bracket, and a housing containing a motor on the support seat. The output end of the motor is connected to a rotating shaft, and the end of the rotating shaft away from the housing is connected to a drill bit. A cleaning mechanism is provided on one side of the bracket, comprising a linear drive unit and a cleaning unit. The linear drive unit is mounted on one side of the bracket, and the cleaning unit is mounted on the linear drive unit. The linear drive unit drives the cleaning unit to reciprocate along the drill bit's axis to clean the drill bit. This utility model achieves automatic cleaning without disassembling the drill bit, improving cleaning efficiency and making cleaning convenient.

The utility model discloses a kind of composite action control systems of anchor rod drilling machine digital handle switch, specifically related to hydraulic control system technical field.Composite action control system of anchor rod drilling machine digital handle switch, comprising: mode switch M, for output chassis mode signal and drilling mode signal;Digital cross handle switch K is connected with controller H by CAN line, for sending direction operation signal to controller H;The 8 feet and 9 feet of controller H are respectively connected chassis mode signal line and drilling mode signal line of mode switch M, for receiving mode signal;Electric proportional output E, defined as the 99 feet and 25 feet of controller H, is connected to electric proportional valve Q;Electric proportional output F, defined as the 40 feet and 16 feet of controller H, is connected to electric proportional valve G.The composite action control system of anchor rod drilling machine digital handle switch provided by the utility model optimizes operation, panel switch reduces, so that operation becomes simple.

The utility model provides a kind of reinforcing device for inhibiting roadway surrounding rock deformation, including outer tube, anchor rod and sealing sleeve, anchor rod is stretched to the bottom of anchor hole after passing through outer tube, anchor rod is connected with corresponding anchor mechanism after being stretched out of outer tube;Sealing sleeve is spherical body that is sleeved in the outside of anchor rod, and sealing sleeve is in contact with the end portion of outer tube after entering center hole by tightening nut, and is extruded the inner wall of center hole by deformation;The part of tray corresponding to the inside of sealing cover is provided with grout passing hole, and grout outlet corresponding to grout passing hole is arranged in the middle of sealing cover.The present application is suitable for surrounding rock stability control in underground engineering such as mine roadway, tunnel, realizes surrounding rock deformation inhibition and structure reinforcement by mechanical anchoring and grouting reinforcement synergistic effect.

The utility model discloses an asymmetric non -middle wall connected arch tunnel support system relates to tunnel support technical field, including connected arch tunnel first -pass hole initial support, connected arch tunnel first -pass hole initial support includes I20a type steel arch frame, inside phi 8 steel bar net, outside phi 8 steel bar net, steel arch frame connecting reinforcing steel bar, big arch foot reinforcing cage, big arch foot steel arch frame triangle bracing structure, big arch foot steel arch frame connecting steel sheet and stiffened steel plate, through the first -pass hole initial support of setting, first -pass hole initial support adopts I20a type steel arch frame, inside phi 8 steel bar net, outside phi 8 steel bar net, steel arch frame connecting reinforcing steel bar, big arch foot reinforcing cage, big arch foot steel arch frame triangle bracing structure, connecting steel plate and stiffened steel plate, form high -strength, high rigid support system, effectively disperses the surrounding rock pressure, reduces local damage, and system anchor rod and radial injection grouting small catheter consolidate surrounding rock through injection grouting, further enhances the stability of surrounding rock.

The application discloses an automatic construction system of an anchor rod, which comprises a drilling machine assembly and an anchor rod bin assembly. The drilling machine assembly comprises a drilling frame, a drilling box base, a sliding module, a drilling drilling box, a pre-tightening drilling box, a sliding seat group and a sliding drive. The drilling box base is fixed to the drilling frame, and the drilling box base is provided with a slot. The sliding module is matched in the slot and is slidably assembled on the drilling frame. The sliding seat group is slidably assembled on the drilling box base, and the sliding drive is arranged on the drilling box base. The sliding seat group comprises a first sliding seat and a second sliding seat. The drilling drilling box is arranged on the first sliding seat, and the pre-tightening drilling box is arranged on the second sliding seat. The anchor rod bin assembly comprises a manipulator and a plurality of conveying assemblies. The manipulator is arranged at one end of the conveying assembly. The conveying assembly comprises a blocking rod and a conveying rod. The conveying rod is provided with a spiral groove. A plurality of anchor rods are embedded in the spiral groove and are limited by the blocking rod. The construction system can realize the automation of the anchor rod support process such as drilling and anchor rod installation, reduces the labor intensity and improves the operation efficiency.

This invention relates to the field of underground engineering support technology, specifically disclosing a method for composite anchoring of resin and microbial cement in water-rich surrounding rock. The method includes: drilling anchor holes with a diameter larger than the anchor rod diameter in the surrounding rock of the tunnel to form an annular cavity, and pushing resin anchoring agent into the bottom of the anchor hole; injecting microbial self-healing cement slurry into the annular cavity to form a plastic slurry; inserting the anchor rod within a predetermined time after grouting and rotating and stirring it, causing the resin anchoring agent to solidify on the outer surface of the anchor rod to form a resin anchoring section, while simultaneously coating and mixing the plastic microbial cement slurry on the outside of the resin anchoring section to form a composite anchor body; finally, curing is performed to completely solidify the resin anchoring section, and the microbial cement slurry hardens to form a protective shell. This method, by constructing a coaxial composite structure of resin anchoring section and microbial cement protective shell, achieves a synergistic effect of rapid and immediate support for the surrounding rock and long-term impermeability, corrosion resistance, and dynamic self-healing, significantly improving the durability and stability of the anchoring system in water-rich environments.