50 results about "Engineering support" patented technology

This invention belongs to the field of foundation pit support technology, specifically relating to an adjustable foundation pit engineering support structure. It includes support units, each comprising a support base plate and a support frame plate. The support base plate rests against the foundation pit wall, and the support frame plate is connected to the support base plate via an adjustable support. A cross bracing device supports the support frame plates of two support units in opposite directions, and the two support units are mutually supported by the cross bracing device, with the adjustable support buffering the deformation pressure of the foundation pit wall. Support units in the same direction are spliced ​​together. This invention provides an adjustable foundation pit engineering support structure, employing an adjustable support structure that forms a recoverable elastic support system between the support base plate and the support frame plate. After pressure is unloaded, it can return to its original shape, improving the durability and reusability of the support structure.

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 method for determining the loosening load of the bearing arch in mega-span tunnels based on plastic zone parameters, relating to the field of geotechnical engineering and underground engineering support design technology. The method includes the following steps: inputting tunnel and support parameters; obtaining the height of the plastic zone at the arch crown through numerical simulation; calculating the equivalent thickness of the bearing arch formed by the system anchors; determining the equivalent loosening load height; calculating the vertical loosening pressure; determining the lateral pressure coefficient based on the surrounding rock strength index; calculating the non-uniformly distributed horizontal loosening pressure; and cyclically outputting the verified load through load displacement verification. This invention directly incorporates the plastic zone development state into the load calculation and establishes a self-correction mechanism, achieving refined and dynamic determination of the loosening load, thus improving the safety and economy of mega-span tunnel support design.

The invention relates to the technical field of underground engineering support, and discloses an anchor rod active prestress releasing system for deep surrounding rock stability control, which comprises an anchor rod body, a prestress applying assembly, a surrounding rock state monitoring assembly, a prestress executing and releasing assembly and a central control unit. One end of the anchor rod body is anchored to the bottom of a deep surrounding rock preset drill hole, and the other end of the anchor rod body extends out of the drill hole. The prestress applying assembly is arranged at the end, extending out of the drill hole, of the anchor rod body in a sleeving mode and used for applying initial prestress to the anchor rod body. Surrounding rock stress and displacement data are collected in real time through the surrounding rock state monitoring assembly, the central control unit automatically judges and drives the prestress executing and releasing assembly to act according to a preset threshold value, and the limitation that a traditional anchor rod cannot be adjusted according to dynamic changes of surrounding rock after prestress is applied is broken through. And stress redistribution generated by excavation disturbance of the deep surrounding rock can be adapted in time.

The invention belongs to the technical field of foundation pit supporting, and particularly relates to an adjustable foundation pit engineering supporting structure. Comprising a supporting unit, and the supporting unit comprises a supporting base plate and a supporting frame plate; the supporting base plate is attached to the wall of a foundation pit, the supporting frame plates are connected with the supporting base plate through adjustable supports, a transverse supporting device is supported between the supporting frame plates of the two supporting units in the opposite direction, the two supporting units are supported through the transverse supporting device to achieve counter-force supporting, and the supporting units buffer deformation pressure of the wall of the foundation pit through the adjustable supports. The supporting units in the same direction are mutually spliced; according to the adjusting type foundation pit engineering supporting structure, the adjusting type supporting structure is adopted, a recoverable elastic supporting system is formed between the supporting base plate and the supporting frame plate through the adjusting type supporting structure, the original shape can be recovered after pressure is unloaded, and the durability and reusability of the supporting structure are improved.

This invention discloses an automatic centering and overlapping device for hollow grouting anchor rods and its usage method, belonging to the field of geotechnical engineering support. It includes a high-strength connecting shell for connecting two hollow grouting anchor rods. A cross-shaped mounting plate is located in the middle of the high-strength connecting shell, between the two hollow grouting anchor rods. Four sets of retractable and extendable straightening mechanisms are respectively arranged on the cross-shaped mounting plate. Each straightening mechanism includes a lightweight moving rod that extends out of the high-strength connecting shell under grouting pressure. The end of the lightweight moving rod has an outer support plate for straightening the position of the hollow grouting anchor rod. The tail of the lightweight moving rod has a liquid driving device powered by the grout, which drives the lightweight moving rod to move under the drive of the grout. By applying grouting pressure, the automatic outer support device moves towards the surrounding rock of the borehole until it contacts the rock, achieving automatic centering.

The utility model relates to the technical field of mining engineering supports, and discloses a folding roadway supporting support for mining engineering, which comprises a support, and a storage mechanism is arranged on the outer wall of the support. The storage mechanism comprises a guide plate fixedly connected to the outer wall of the support, a sliding block is slidably connected to the outer wall of the guide plate, an X-shaped connecting frame is rotatably connected to the inner surface of the sliding block, a positioning assembly is arranged on the inner wall of the front portion of the support, and a positioning column and a connecting column are fixedly connected to the front surface of the support. A moving assembly is arranged on the inner wall of the bottom of the support, and the positioning assembly comprises a rotating plate rotationally connected to the inner wall of the front portion of the support. According to the utility model, after the plurality of groups of contracted brackets are adjusted to a certain position, the limiting of the rotating plate is relieved, and then the whole bracket is pulled open, so that the operation is simple and convenient, and the plurality of groups of brackets do not need to be adjusted one by one, thereby improving the overall working efficiency.

The utility model relates to a supporting device for constructional engineering. Comprising a movable foundation frame, a lifting platform is installed on the top of the foundation frame, a lifter is installed between the foundation frame and the lifting platform, a jacking assembly is installed on the lifting platform, and an expanding device for controlling deformation is installed in the jacking assembly; the jacking assembly comprises a base detachably connected with the lifting platform, a left shaft seat and a right shaft seat are arranged on the base, a left bottom shaft and a right bottom shaft are installed on the base, the jacking assembly further comprises a left folding supporting arm and a right folding supporting arm, middle shafts are arranged in the middles of the folding supporting arms, the lower ends of the folding supporting arms are fixedly connected with the shaft ends of the bottom shafts, and the upper ends of the folding supporting arms are connected through top shafts in a hinged mode. A front base plate and a rear base plate are arranged at the bottom of the top supporting plate, the base plates are fixedly connected with the shaft end of the top shaft, and the expanding device is installed between the two middle shafts and drives the two middle shafts to change the distance. According to the utility model, the use flexibility and the supporting and adjusting operation characteristics are improved.

The utility model discloses a steel structure engineering support convenient to adjust, and particularly relates to the technical field of engineering supports, the steel structure engineering support convenient to adjust comprises a cross beam, two lifting columns are symmetrically arranged at the bottom of the cross beam, a toothed plate is installed on one side of each lifting column, the bottom end of each lifting column is connected with a bottom cylinder in a sliding mode, and a base is installed at the bottom end of each bottom cylinder. And a fixing frame is welded to one side of each bottom cylinder, a driving mechanism connected with the toothed plate in a meshed mode is installed on each fixing frame, two distance adjusting mechanisms are installed at the top end of the cross beam, a rotating assembly is installed on each distance adjusting mechanism, and guide rods are jointly connected to the two sides of the two distance adjusting mechanisms in a sliding mode. By means of the driving mechanism, the distance adjusting mechanism and the rotating assembly, adjustment of the height of the support and the position and angle of the rotating assembly is achieved, and the steel structural part adjusting device has the advantages of being capable of adapting to steel structural parts of different heights, positions and angles and improving universality and connection firmness.

The utility model relates to the technical field of steel structure engineering construction, in particular to an engineering support convenient to butt joint and install, which comprises a supporting base, a supporting column is fixedly connected to the center of the top of the supporting base, supporting assemblies are installed on the top of the supporting column through a quick connection assembly, and a bearing frame and a ladder stand piece are inserted between the supporting assemblies. And a protection assembly is mounted at the top of the supporting assembly. According to the improved engineering support, the quick connecting assembly is additionally arranged, the supporting base and the supporting assembly can be quickly installed, other parts are effectively installed in an inserted connection mode, welding or bolt connection or other modes are not needed, the whole process is relatively easy, the protection assembly is additionally arranged, and the protection effect is good. According to the protective device for the working personnel, the working personnel can be protected to a certain extent, the working efficiency is effectively improved, the bottom plate has certain anti-skid performance through the design of the anti-skid gaskets, and the situation that the working personnel fall down is effectively reduced.

The invention relates to the technical field of underground engineering supporting construction, and discloses a semi-embracing type expandable inter-pile reinforcing and connecting structure and a construction method thereof.The structure comprises a pair of expandable C-shaped hoops installed on a cast-in-place pile, one end of each C-shaped hoop is a hinged end, the other end of each C-shaped hoop is a locking end, and the outer side of each C-shaped hoop is provided with a connecting rib plate and a guide groove; a plurality of through holes are formed in the connecting rib plate, the connecting rib plate and the guide groove are jointly used for being connected with a reinforcing mesh between the cast-in-place piles, the sprayed concrete layer between the C-shaped hoop and the cast-in-place piles is integrally poured and formed and jointly stressed, and a mechanical meshing structure is formed between the sprayed concrete layer and the C-shaped hoop. The technical problems that an existing inter-pile connecting structure is low in positioning precision, poor in supporting integrity and low in construction efficiency are solved, reliable connection between the pile body and the inter-pile supporting layer is achieved, and the stability and safety of an underground engineering supporting system are improved.

The utility model belongs to the technical field of constructional engineering, and discloses a novel constructional engineering supporting device which comprises a base, a first sliding groove is formed in the top end of the base, a first sliding block is installed in the first sliding groove in a sliding mode, a first installation base is installed at the top end of the first sliding block, and a second sliding groove is formed in one side of the first installation base in a penetrating mode. A pair of extension plates are symmetrically mounted at the two ends of the second sliding groove, a fixing assembly is mounted at the top ends of the extension plates, a pair of second mounting bases are symmetrically mounted on the two sides of the first sliding block, a third sliding groove is formed in the top ends of the second mounting bases, and a pair of third sliding blocks are symmetrically mounted on the two sides of the third sliding groove; the two sides of the top ends of the pair of third sliding blocks are symmetrically provided with a pair of inclined supporting rods. According to the building material lifting device, long building materials can be supported, the building materials are clamped through the fixing assemblies in the supporting process, shaking occurring when the building materials are lifted is reduced, then the stability of the device is improved, and the probability of safety accidents is reduced.

The invention discloses a model-driven full-stack code automatic generation method and system.The method comprises the steps that a multi-dimensional design model is constructed, the multi-dimensional design model generates a model view through design codes, and full-stack codes are automatically generated in the model view generation process, and the full-stack code automatic generation method comprises the steps that S1, a unified semantic model is constructed, mapping the unified semantic model to a preset multi-language template, and generating target code frames of at least two languages of C + +, Java and JavaScript by the multi-language template; s2, establishing a bidirectional synchronization mechanism of the multi-dimensional design model and the target code framework; when the multi-dimensional design model is changed, automatically triggering an incremental code generation task; when the code is iterated, reversely analyzing and updating the corresponding model view; according to the method, the diversity of generated languages, the comprehensiveness of a design model, the flexibility of a template system, engineering support and the like are remarkably improved.

The utility model provides a hydraulic self-tightening type magnetic suction combined supporting system, and belongs to the field of engineering supporting, the supporting system comprises an anchor rod, a permanent magnet tray is arranged at the bottom of the anchor rod, a hydraulic self-tightening device is arranged below the permanent magnet tray, and the hydraulic self-tightening device comprises a hydraulic column, a hydraulic cavity, a hydraulic pipe and a hydraulic pump which are connected in sequence; an intelligent early-warning hydraulic pressure gauge is arranged at the end, close to the hydraulic cavity, of the hydraulic pipe. Through the magnetic attraction effect of the permanent magnet tray, the attraction force between the anchor rods is enhanced, and the supporting stability is improved; the hydraulic column is pressurized through the hydraulic pump, so that the anchor rod is more tightly attached to the rock wall, and the supporting effect is further improved; the intelligent early warning hydraulic pressure gauge can monitor the pressure condition of the hydraulic system in real time, and safe operation of the supporting system is ensured; the permanent magnet tray, the hydraulic self-tightening device and other assemblies are convenient to install and maintain, and the supporting scheme can be rapidly adjusted according to different geological conditions.

The invention discloses a hydroelectric underground engineering support design method and system based on a discrete element model, and relates to the technical field of geotechnical engineering.The method comprises the steps that a three-dimensional chamber excavation model is built according to chamber types and chamber space parameter information in combination with key engineering geological parameters; based on the supporting parameters corresponding to the chamber excavation mode, chamber excavation supporting is dynamically simulated through the discrete element model, and a chamber supporting scheme is generated; and determining a judgment standard taking a plurality of set parameters as evaluation indexes, and constructing a support scheme optimization judgment system to obtain an optimal support scheme. The optimal scheme can be finally screened out, the design efficiency is improved, and the construction cost is reduced.

According to the support system based on the low-temperature activated intelligent alloy locking key and the installation method, the interference fit principle is introduced into a macroscopic civil engineering support connection scene, and the lossless high-strength connection effect with the predictable and controllable force value is achieved; meanwhile, a high-carbon chromium-cobalt-molybdenum-vanadium special alloy is adopted as a key locking core material, and the excellent mechanical property and thermal expansion characteristic of the high-carbon chromium-cobalt-molybdenum-vanadium special alloy provide a solid material basis for engineering application of the scheme; through optimization design of a lock key structure with a preset shearing weak point, controllable and predictable switching of'consolidation-sliding 'double working states of a connection node is realized; and finally, through an integrated temperature-strain sensing system, construction quality on-line verification and full-life-cycle health monitoring are successfully realized, and upgrading iteration from a traditional component to an intelligent system is realized.

The invention discloses a self-preloading dock entrance supporting system and a construction method thereof, and belongs to the technical field of engineering supporting. According to the technical scheme, a steel pipe main support, a steel enclosing purlin and a latticed column form an assembly type frame structure, one end of the steel pipe main support is a fixed end, the other end of the steel pipe main support is a movable end, the movable end uses an intelligent pressurization node, and a sliding type support and an automatic prestress applying system are integrated. The sliding support achieves axial telescopic adjustment through a sliding guide rod and a limiting device, and the automatic prestress applying system comprises an intelligent control unit, a hydraulic module and a stress sensing system. The construction method comprises the steps of concrete support pouring, steel enclosing purlin and latticed column mounting, prefabricated support unit hoisting, prestress applying and monitoring, multi-layer support arrangement and the like. The temporary supporting device has the beneficial effects of being reasonable in structure, convenient to install, safe, efficient and suitable for temporary supporting in complex environments such as dry docks and foundation pits, and the construction efficiency and the structural safety are improved.

This invention relates to a modular steel arch support device and construction method for underground caverns, belonging to the technical field of underground engineering support equipment. It aims to solve the problems of inconvenient transportation and installation, poor adaptability to height and cross-section, and insufficient support stability of traditional steel arch supports. The device consists of a support adjustment mechanism, a side support mechanism, a lateral connection mechanism, and a top arch mechanism. The support adjustment mechanism allows for flexible overall height adjustment; the side support mechanism tightly abuts against the cavern sidewall, enhancing lateral stability; the lateral connection mechanism accurately completes multi-unit splicing and positioning; and the top arch mechanism can flexibly adapt to various complex cavern cross-sectional shapes. During construction, the device is first disassembled and transported to the site, then spliced ​​and installed using bolts, eliminating the need for large hoisting equipment and on-site welding. This invention offers advantages such as convenient assembly and disassembly, strong adaptability, and stable support, meeting the high-efficiency support requirements of large-span, complex-section underground caverns, significantly improving construction efficiency, and ensuring overall structural safety.

The utility model discloses a novel steel structure engineering support, and particularly relates to the technical field of engineering supports, the novel steel structure engineering support mainly comprises an inclined sleeve frame and an inclined frame, the inclined frame is fixed in the inclined sleeve frame, and a cross reinforcing assembly is arranged at the cross position between the inclined sleeve frame and the inclined frame; the cross reinforcing assembly comprises a cross block fixedly arranged between the inclined sleeve frame and the inclined frame, a supporting block is fixedly connected to the lower cross position of the cross block, connecting columns are fixedly connected to the two sides of the cross block, a reinforcing frame is installed at one end of each connecting column, and the two connecting columns are fixedly connected with the reinforcing frame. And two reinforcing blocks are fixedly mounted on the lower surface of the reinforcing frame. According to the utility model, the crossed reinforcing assembly is adopted, the reinforcing sleeve is stressed to enable the sleeve to be stressed downwards, the supporting bottom plate supports the supporting block, the inclined sleeve frame and the inclined frame realize self crossed support, double crossed support is realized, and the novel stability is greatly improved.

The utility model relates to the technical field of vertical detection, in particular to a support frame for a vertical detection device for constructional engineering, which comprises an assembling seat and a lossless attachment module, the top end of the assembling seat is detachably connected with a plumb bob measuring device, and the bottom end of the assembling seat is detachably connected with the lossless attachment module; an inward-concave polygonal clamping groove is formed in the bottom of the assembling base, and the upper middle portion of the lossless attachment module is clamped into the polygonal clamping groove. A locking mechanism is further installed on the assembling base and used for fixing the lossless attachment module when the lossless attachment module is clamped into the polygonal clamping groove. By means of the simple replacement design of the lossless attachment module, overall replacement of the support is avoided, the maintenance cost is reduced, and lossless fixing is achieved.

This invention belongs to the field of underground engineering support technology, specifically disclosing a secondary grouting anti-detachment anchor bolt device and its usage method. The anti-detachment anchor bolt device includes an anchor bolt, anchoring auxiliary components, an anchoring assembly, a tray component, and a pressure-relief assembly. The anchor bolt has a hollow structure for insertion into the anchor hole. The anchor bolt includes a grouting section, an anchoring section, and a pressure-relief section connected sequentially. The anchoring auxiliary components include an extension rod and two grout-stopping plugs. The extension rod is positioned at the end of the grouting section along the length of the anchor bolt; the two grout-stopping plugs are respectively positioned at the ends of the grouting sections. The grout-stopping plug near the extension rod is used to seal the anchor hole as an initial anchoring area, and the two grout-stopping plugs are used to seal the anchor hole between the grout-stopping plugs as a secondary anchoring area. This invention, through the anchor bolt and anchoring auxiliary components, achieves the division of the anchor hole into an initial anchoring area and a secondary anchoring area, enabling secondary reinforcement through two anchoring operations during use.

This invention relates to the field of underground engineering support structure design technology, and particularly to a topology optimization design method for high-resistance nodes of lightweight steel arch frames. The method includes: solving the initial elastic stress field of a finite element model; constructing a Riemannian manifold design domain and a Riemannian metric tensor based on principal stress characteristics; introducing continuous phase field variables to interpolate the macroscopic elastic tensor; jointly constructing a total free energy functional with the Riemannian metric tensor and a double potential well function; calculating variational derivatives to obtain the generalized chemical potential; substituting this potential into a reduced-order decoupled phase field dynamics equation set to update the continuous phase field variables to output a steady-state phase field distribution; extracting the zero isosurface of the steady-state phase field distribution to reconstruct the solid configuration and perform load-bearing verification; adjusting evolution parameters and returning to the functional construction when plastic strain overflows; otherwise, outputting the geometric model. This invention transforms optimization into a stress-guided physical process, eliminating the potential for stress concentration.

The invention belongs to the technical field of foundation pit engineering supporting, and particularly relates to a slant supporting pile supporting system convenient to mount and demount and a using method.The supporting system comprises a fender post, a top beam is arranged at the top end of the fender post, and the fender post is arranged in a foundation pit and close to the side wall of the foundation pit; the counter-force mechanism is arranged at the top of the side wall of the fender post and located on the side, close to the interior of the foundation pit, of the fender post; the hydraulic mechanism is detachably connected to the adjusting end of the counter-force mechanism; and the supporting mechanism is detachably connected to the telescopic end of the hydraulic mechanism, the supporting mechanism is obliquely arranged in the bottom of the foundation pit, and the supporting mechanism inclines towards the fender post. Rapid driving and installation of the inclined supporting pile system can be achieved without depending on a large machine, after the supporting system is installed, the axial force of the inclined supporting piles can be monitored in real time, and after foundation pit construction is completed, most components of the supporting system can be recycled and reused.

The utility model relates to the technical field of building equipment, and provides a building engineering supporting device which comprises a bottom plate, one end of the bottom plate is fixedly connected with a vertical plate, the bottom plate and the vertical plate are perpendicularly intersected, an adjusting assembly is arranged in the middle of the top face of the bottom plate, and the adjusting assembly comprises two triangular supporting frames. Through the arrangement of the bottom plate, the vertical plate, the adjusting assembly and the supporting assembly, after the bottom plate is installed on a wall root part needing to be fixed during use, the bottom plate and the vertical plate are used for vertically supporting a wall body, the position of an adjusting block is adjusted through rotation of a threaded rod, and the inclination angle of a rotating plate is adjusted through a telescopic rod; a clamping block is used for clamping and limiting a gap between two triangular limiting blocks, so that the position of the adjusting assembly is limited, the top end part of the vertical plate support is obliquely supported, the supporting part is not limited to a vertical wall body, and the radian part of the top end of the wall body can also be supported.

The utility model discloses a constructional engineering support frame which comprises a bearing rod and further comprises a movable support assembly, a sliding sleeve, a fixed frame, a movable frame and a bearing clamping assembly, the movable support assembly is rotationally connected to the two ends of the bearing rod and used for supporting the bearing rod, and the sliding sleeve is arranged on the outer side wall of the bearing rod in a sleeved mode and arranged in the length direction of the bearing rod in a sliding mode. The fixed frame is fixedly connected to the upper wall of the sliding sleeve, the movable frame is movably connected to one side of the fixed frame through the bearing and clamping assembly, a clamping groove is formed between the movable frame and the fixed frame, and the bearing and clamping assembly is fixedly connected to the interior of the fixed frame. The utility model belongs to the technical field of concrete prefabricated part supporting devices, and particularly relates to a constructional engineering supporting frame which can achieve multi-angle conversion supporting adjustment with different supporting standards in the assembling process of prefabricated concrete wallboards, splice and clamp a plurality of adjacent prefabricated wallboards at the same time, and improve the assembling efficiency and quality.

The invention relates to the technical field of geotechnical engineering numerical simulation and underground engineering support, and discloses a roadway high-prestress end anchor support calculation method based on finite virtual anchor elements, which comprises the following steps: constructing an independent grid and dividing an anchor rod into an end anchor section, a free section and a tray section; introducing a double-Lagrangian multiplier based on a virtual work principle to construct geometric coupling, and establishing a rigidity equation of the dimensionality reduction coupling system through variable replacement; a nonlinear bond slip model, zero-stiffness contact and locking constraint are defined for each section, prestress is converted into initial strain, and a tray surface pressure dynamic feedback mechanism reflecting axial force increase caused by surrounding rock expansion is constructed; and assembling a global tangent stiffness matrix, solving a nonlinear equilibrium equation by using a Newton-Raphson algorithm, and inverting the axial force and the shear stress. According to the method, grid independence is achieved, segmented differential mechanical behaviors and prestress dynamic coupling evolution are represented, and the problem that a real supporting mechanism is difficult to reflect through traditional numerical simulation is effectively solved.

The application discloses a high and large formwork engineering support system and a construction method thereof, and relates to the technical field of building construction. The high and large formwork engineering support system comprises a plurality of bases, the top of each base is provided with a support device, the support device comprises a fixed plate fixed to the top of the base, a first vertical groove formed in the fixed plate, a first through hole formed in the top wall of the first vertical groove, a movable rod slidably connected to the first through hole, a support plate fixed to the top of the movable rod, a movable plate fixed to the bottom of the movable rod, and a driving mechanism mounted on the side wall of the first vertical groove and used for driving the movable plate to move. The application can shorten the erection and dismounting period of the support system.

The present application relates to the technical field of engineering support, and provides an anchor rod cable tray assembly and a supporting method thereof. An anchor rod of a tray component is arranged in a tray body. A shaping component includes a shaping disc, a shaping pile, a constraint ring and a concrete bag. The shaping disc is arranged on the tray body, and a disc body of the shaping disc is provided with a central through hole for the anchor rod to pass through. The shaping pile is arranged on an upper surface of the shaping disc. The constraint ring is arranged around one or more shaping piles on the shaping disc, and forms an accommodating cavity together with the shaping disc. The interior of the concrete bag is filled with a plastic hardening material, and the concrete bag is arranged in the accommodating cavity. When a pre-tightening force is applied to the tray body by the anchor rod, the tray body extrudes the shaping disc, which in turn extrudes the concrete bag, so that the plastic hardening material in the concrete bag is shaped under pressure to fill the accommodating cavity and adhere to the uneven bedrock surface. After hardening, a high-strength bearing structure is formed, which can adapt to the undulations of the bedrock surface, eliminate stress concentration, and improve the overall bearing efficiency and long-term durability of the anchor rod support system.

This invention relates to the field of deep foundation pit engineering support technology, and discloses a dynamic wind load response optimization method for steel support structures in typhoon-sensitive areas. The method includes: setting and adjusting the system maintenance parameters based on the current axial force value, continuously quantifying the adjustment action, and switching between two modes: adaptive adjustment of the target axial force and execution of emergency response based on the trend and rate of change of the parameters. The invention establishes a working state that allows the structure to breathe in a controlled manner, avoiding the continuous accumulation of stress under the traditional rigid top resistance method, and enhancing the system's inherent ability to perceive the evolution of the macroscopic stiffness of the soil and identify acute and chronic risk modes without relying on external sensors.

This invention provides a method for using fully recyclable anchor bolts in mining, specifically relating to the field of underground engineering support technology. The installation phase of this method includes S1.1 obtaining a stepped hole; S1.2 inserting the recyclable anchor bolt; S1.3 installing a torque amplifier and a recovery nut; S1.4 pushing the recyclable anchor bolt in; S1.5 installing the anchor bolt tray and completing the support; S1.6 testing the pre-tightening force and anchoring force. The recovery phase includes S2.1 removing the anchor bolt tray; S2.2 using the torque amplifier to gradually and slowly rotate the recyclable anchor bolt out of the stepped hole; S2.3 testing the material mechanical properties and deformation of the recovered anchor bolt and then screening and storing it. Compared to traditional anchor bolt installation or recovery methods, this invention eliminates the need for anchoring agents, solving technical problems such as inconvenient anchor bolt installation and disassembly, difficult recovery processes, cumbersome procedures, and low recovery rates. It also avoids the risks of breakage during traditional anchor bolt recovery or the danger of flying debris from resin anchor bolts during coal mining, which threatens personnel safety, even though resin anchor bolts do not need to be removed.