2404 results about "Anchor bolt" patented technology

The invention relates to the related technical field of steel column construction, and particularly discloses a super high-rise building steel column embedded type column foot construction device and a construction technology thereof.The construction device comprises a foundation, a steel column, a rib plate, a bottom plate and anchor bolts, the position, below the rib plate, of the steel column is fixedly connected with a pouring plate, and a cavity is formed in the bottom plate; a fixing assembly used for fixedly clamping a steel column is arranged below the bottom plate, an auxiliary assembly used for removing bubbles from concrete is arranged on the side face of the steel column, two sets of clamping blocks move in a cavity of the bottom plate, the bottom plate can be clamped and fixed, and the stability of the steel column during pouring is improved; and meanwhile, when a screw rod rotates to drive a threaded sleeve to rotate in an adjusting block, a steel column above the adjusting block can be pulled for position adjustment, and the adjusting block can drive a wedge-shaped block to extrude a cylindrical head and apply reverse extrusion force to a driving part, so that the clamping and limiting effects of a clamping block on a bottom plate are improved.

The utility model discloses a heat-preservation and energy-saving building column foundation heat-preservation joint which comprises an embedded part, a steel column and a high-strength heat-preservation cushion block. The embedded part comprises a positioning plate and a column foot anchor bolt and is embedded in the positioning plate when a reinforced concrete structural plate is poured, a higher part of the column foot anchor bolt is exposed according to the elevation of a steel column foot bottom plate, a high-strength heat preservation cushion block is arranged on the upper portion of the positioning plate, a hole is reserved in the position, corresponding to the column foot anchor bolt, of the high-strength heat preservation cushion block, and the column foot anchor bolt penetrates through the hole. A steel column base bottom plate penetrates through a column base anchor bolt to fall on the high-strength heat preservation cushion block and is firmly connected with the column base anchor bolt through a nut, a steel cover plate is arranged on the periphery of the steel column, the steel cover plate and the ground surface layer are located on the same horizontal plane, and the space between the steel cover plate and the steel column base bottom plate is filled with foaming polyurethane. On the premise that the structure bearing requirement is met, cold (heat) breaking is conducted on the column foundation part, a heat preservation surface layer does not need to be additionally adopted to wrap a building inner structure column (steel column), the size of the built building inner structure column is appropriate, and building space does not need to be additionally occupied.

The invention discloses an anchor rod type mine laneway surrounding rock stress monitoring system, which comprises a hollow anchor rod, a high-precision strain rosette, a strain collector, a gateway, fault prediction and health management software and a server, and is characterized in that the rod body of the hollow anchor rod is of a hollow structure, the high-precision strain rosette is fixed in the hollow rod body, and the strain collector is fixed in the hollow rod body; the strain collector communicates with the gateway through an RS485 bus, the gateway communicates with the fault prediction and health management software and the server in an optical fiber mode, a hollow anchor rod supporting product which is most commonly used at present is utilized in the scheme, the high-precision resistance type strain gauge is arranged in the hollow anchor rod supporting product, the installation form is consistent with that of an anchor rod, and the high-precision resistance type strain gauge can penetrate into a rock stratum; the distributed roadway surrounding rock stress monitoring system is formed, the mine roadway surrounding rock stress change condition can be accurately and comprehensively monitored and pre-warned in real time, different pre-warning signals are sent out in advance, maintenance workers are supervised and urged to take reinforcement measures or evacuate in time, and therefore collapse accidents are avoided.

The invention relates to a diagnosis method for judging a loose part of rotating equipment. The diagnosis method comprises the following steps: (1) collecting vibration data; (2) spectrum characteristic analysis; (3) differential vibration testing; (4) positioning a loose part; and (5) dynamic verification and optimization. The device has the advantages that through multi-dimensional vibration data acquisition, vibration sensors are arranged at key parts such as motor feet, a bedplate and foundation bolts, vibration displacement values in the horizontal direction, the vertical direction and the axial direction are measured, multiple test points are divided to synchronously acquire data, and vibration information of rotating equipment can be comprehensively acquired. And combining frequency spectrum characteristic analysis and differential vibration comparison, comparing vibration displacement value differences of different hierarchical structures of the same part, and calculating a difference threshold value, so that the specific loose part of the A-type machine is accurately positioned, the limitation that accurate positioning is difficult to realize by traditional experience-dependent judgment or single vibration amplitude analysis is broken through, the blindness of maintenance is reduced, and the working efficiency is improved. The maintenance efficiency is improved.

The invention provides a composite protection structure suitable for underwater seepage prevention and explosion prevention of a concrete gravity dam and a preparation and construction method, and belongs to the technical field of engineering explosion prevention and seepage prevention. The composite protection structure comprises a reinforced concrete slab anchored on the outer surface of the gravity dam by a certain distance through an anchor rod; a reserved interlayer between the reinforced concrete slab and the outer surface of the gravity dam is filled to form an anti-seepage and anti-explosion composite layer; the anti-seepage and anti-explosion composite layer is formed by pouring hollow glass bead-asphalt concrete, and the hollow glass bead-asphalt concrete is prepared from asphalt concrete with modified hollow glass beads as filler; the modified hollow glass beads account for more than 15% of the asphalt concrete by volume, and the asphalt concrete has enough sealing gas for reflecting explosive shock waves and has the characteristics of seepage prevention and energy dissipation. The composite protection structure has anti-seepage and anti-explosion functions, the service life of the dam is prolonged, and the ability of the dam to resist sudden extreme working conditions is improved.

The invention relates to the technical field of wind power, and discloses a lattice type foundation for a wind power tower and a construction method thereof.The foundation comprises a plurality of bearing platforms, and a cross beam is fixedly connected between every two adjacent bearing platforms; a lattice type wind power tower column can be erected on the upper side of the bearing platform; an embedded pipe is reserved in the center of any bearing platform and used for penetration of a prestressed steel strand, and the prestressed steel strand can be fixed to the top face of the tensioning cavity; a tensioning cavity is formed in the bottom surface of any bearing platform and can be used as a prestressed steel strand tensioning or anchoring operation space; any bearing platform is provided with a pre-stressed anchor bolt assembly, and the pre-stressed anchor bolt assembly is suitable for being fixed to a lattice type wind power tower column. The multiple bearing platforms are adopted for providing support for fixing of the lattice type wind power tower, compared with a fan foundation of a traditional cylinder type tower, the land acquisition area can be remarkably saved, the material cost is reduced, and the wind power tower foundation is suitable for various terrain environments.

An anchor rod mounting trolley belongs to the technical field of tunnel construction and comprises a movable chassis, a grouting system and an operation system. The operating system comprises a working arm, a hanging basket device and a propelling device; the grouting system and the working arm are both installed on the movable chassis, the hanging basket device is installed on the working arm, and the propelling device is installed on the hanging basket device. The grouting system is used for injecting grout into an anchor rod hole; the working arm is used for adjusting the positions of the hanging basket device and the propelling device relative to the anchor rod hole; and the propelling device is used for inserting the anchor rod body into the grouted anchor rod hole. The mechanical degree can be improved, the labor intensity is reduced, the operation efficiency is improved, and the construction cost is reduced.

The invention relates to the technical field of shield tunnel reinforcement, and discloses a tunnel lining reinforcement assembly and method based on orthotropic steel plates combined with chemical anchor bolts, which are used for improving the bending resistance, torsion resistance and long-term stability of segment joints. The assembly comprises an orthotropic steel plate, a chemical anchor bolt and a bi-component modified epoxy resin structural adhesive, and the orthotropic steel plate is bonded to the inner side of the duct piece through the structural adhesive and anchored through the chemical anchor bolt; the steel plate is provided with an adjustable longitudinal stiffening rib (U-shaped or V-shaped) and a diaphragm plate, and parameters of the steel plate are optimized through numerical simulation. The arrangement density of the chemical anchor bolts is designed in a partitioned mode according to the stress characteristics of the duct pieces, interface scabbling pretreatment and structural adhesive bonding are combined, and the interface connection strength is enhanced. Through the synergistic effect of the orthotropic plates and the anchor bolts, flexible adjustment of reinforcing parameters is achieved, the bearing performance and the material utilization rate are remarkably improved, tunnel deformation is effectively restrained, construction is convenient, and long-term stability is high.

The utility model discloses a drawing instrument capable of monitoring the displacement amount of an anchor rod in real time, which comprises a counter-force gasket, a sleeve, a tension oil cylinder, a steel wire type spring displacement meter and a connecting rod, the counter-force gasket, the sleeve and the tension oil cylinder are sequentially arranged in a contact mode, one end of the connecting rod penetrates through the tension oil cylinder and the sleeve and then is in threaded connection with the exposed end of the anchor rod, and the other end of the connecting rod is in threaded connection with the steel wire type spring displacement meter. The other end penetrates through the tension oil cylinder and then is in threaded connection with a locking nut; the steel wire type spring displacement meter is arranged on the counter-force gasket and the tension oil cylinder and is fixed through elastic force of the steel wire type spring displacement meter. The drawing instrument provided by the utility model can measure and record the displacement of the anchor rod in real time in the drawing process of the anchor rod, simultaneously generates an anchor rod displacement-time whole-process curve, observes the displacement change trend of the anchor rod, and can export data in the later period, so that engineers can comprehensively evaluate the performance of the anchor rod.

The invention relates to the technical field of mining engineering and geotechnical engineering support design, and discloses a roadway anchor rod group support parameter intelligent optimization method based on unbalanced force, and the method comprises the steps: building a surrounding rock finite element model, calculating a plastic stress increment through employing a minimum plastic complementary energy principle, and mapping the plastic stress increment into a node unbalanced force vector; an unbalanced force field reflecting reinforcement requirements is constructed, and an initial scheme is generated according to the unbalanced force field. Then, a virtual anchor rod unit is introduced to establish a nonlinear coupling model, an incremental balance equation is solved, and whether the unbalanced force is smaller than a threshold value or not is judged; if so, outputting an optimal parameter; otherwise, a comprehensive objective function containing safety and economy is constructed, new parameters are obtained through searching and decoding by means of the particle swarm algorithm, and the virtual anchor rod unit is re-entered for calculation to form a closed loop until convergence is achieved. According to the method, intelligent optimization is driven through a physical mechanism, the problem that a traditional design lacks a mechanical basis is solved, and accurate optimization of support parameters is achieved.

The invention discloses an integral dismantling method for a rigid frame bridge hanging basket formwork, and relates to the technical field of bridge engineering construction. The problems that in the prior art, the rigid frame bridge hanging basket formwork dismantling efficiency is low, potential safety hazards are high, and cost is high are solved. The dismantling method comprises the following steps of: pre-burying a winch anchor bolt to anchor a winch; loosening a hanging basket anchor system to separate a hanging basket bottom die from a concrete box girder; arranging four winches to be matched with fixed pulleys; synchronously lifting the hanging basket bottom die for static load test, then synchronously lowering the hanging basket bottom die to the ground, and decomposing and dismantling the hanging basket bottom die on the ground. And the hanging basket truss is disassembled on the bridge floor. The integral dismantling method for the hanging basket formwork of the rigid frame bridge is used for dismantling the hanging basket bottom formwork of the rigid frame bridge, an integral dismantling mode is adopted, high-altitude split operation of the hanging basket bottom formwork is converted into integral ground dismantling, the operation time is shortened, and the dismantling efficiency is improved; the template loss is reduced, and the cost is reduced; aloft work is reduced, and potential safety hazards are reduced. The method is particularly suitable for large-span bridge engineering crossing rivers and seas or expressways.

The invention relates to the technical field of nut spraying equipment, and discloses a full-automatic feeding device for nut spraying, which comprises a supporting frame, the supporting frame is mounted on the ground through foundation bolts, a workbench is mounted on one side of the upper end of the supporting frame, a fixing frame is mounted on the other side of the upper end of the supporting frame, and a material guiding mechanism is mounted on the workbench; a hanging mechanism is mounted on the workbench; the material guiding mechanism comprises a feeding channel, a moving frame, a containing table and a containing groove. The hanging mechanism comprises a lifting frame, a hanging net, a hook and a pushing frame. The automatic nut hanging device has the beneficial effects that nuts can be moved into the containing groove through the vibration disc and the feeding channel, then the nuts can be pushed to the hooks through the pushing frame, the hanging net can be driven to move up and down through the lifting frame, more nuts can be hung on the hanging net, the function of automatically hanging the nuts is achieved, participation of workers is not needed, and the working efficiency is improved. The labor intensity of workers is reduced, and the working efficiency is improved.

The invention belongs to the technical field of mining construction, and particularly relates to an artificial roof structure and a construction process thereof. The construction process comprises the steps that S1, anchor rod holes are constructed in the positions, 1 m away from a bottom plate, of two sides of a stope, S2, ore cushion layers with the thickness of 200 mm are laid and leveled, S3, I-shaped steel bottom beams are erected and fixed through round steel anchoring parts and welding base plates, S4, a reinforcing mesh is laid, main ribs and auxiliary ribs are bound in a crossed mode and welded to anchor rods, according to the composite structure design of the double-layer reinforcing mesh, the steel wire mesh and the hanging bar system, a three-dimensional stress system is formed, the bending resistance and the shearing resistance of the false roof are remarkably improved, the problem that a traditional false roof is prone to cracking and sinking is solved, and the false roof has the advantages of being simple in structure, convenient to use, economical and practical. Due to the layered matching design of the full-tailing cemented filling body, the bearing strength is guaranteed, seamless roof contact is achieved, the risk of roof hollowing is reduced, the pressure of stope operation circulation is relieved, the ore removal efficiency is improved, and the mining cost is reduced.

The invention provides a seamless steel pipe for a hollow anchor rod and a strength regulation and control method thereof. Alloy steel round steel is heated and then subjected to hot piercing to be manufactured into a hollow pipe blank; the hollow pipe blank is subjected to spheroidizing annealing treatment and then cooled, and a first treated steel pipe is obtained; wherein the ferrite grain size D1 of the first treated steel pipe is calculated according to a spheroidizing annealing grain size model; the first treated steel pipe is subjected to cold finish rolling forming and cleaned to obtain a second treated steel pipe; the ferrite effective grain size Ddef of the second treatment steel pipe is calculated according to the cold deformation grain refinement model; recrystallizing and annealing the second treated steel pipe to obtain the seamless steel pipe; the ferrite grain size D2 of the seamless steel pipe is calculated according to the recrystallization grain evolution model; the yield strength Rp0.2 of the seamless steel pipe is calculated according to a strength model; reverse design of the yield strength of the seamless steel pipe is achieved, and meanwhile it is guaranteed that the seamless steel pipe has good plasticity.

The invention discloses a voiceprint detection method and device for bolt looseness of a power transmission tower, and relates to the technical field of bolt looseness detection, and the method comprises the following steps: obtaining a noise reduction signal of a bolt, extracting feature data from the noise reduction signal, and constructing a multi-dimensional voiceprint feature vector; performing weighting processing on the multi-dimensional voiceprint feature vector to obtain a working condition adaptive feature vector; calculating a weighted difference degree between the working condition adaptive feature vector and a reference feature vector, wherein the reference feature vector is obtained through a bolt vibration voiceprint signal feature in a normal fastening state; and the weighted difference degree is judged based on the dynamic threshold value, and the bolt loosening state is output. The method is used for solving the problems of poor adaptability and easy missing detection caused by working condition difference of foundation anchor bar bolts.

The utility model relates to the technical field of cold headers, and provides a cold header for anchor bolt production, which comprises a base. According to the straightening device, raw materials are placed between the first straightening wheel and the second straightening wheel, the motor is started to drive the first gear to rotate so as to drive the auxiliary gear to rotate in an engaged mode, the auxiliary gear drives the third gear to rotate in an engaged mode, and the first gear and the third gear drive the connecting shaft to rotate so as to drive the second straightening wheel to rotate. The raw materials are driven to move through rotation of the second straightening wheels, the raw materials are conveyed, the raw materials are straightened in the raw material output process through arrangement of the first straightening wheels and the second straightening wheels, the raw materials are polished in the raw material conveying and moving process through arrangement of abrasive paper, and pretreatment of the raw materials in the feeding process is achieved; by means of the technical scheme, the problem that in the prior art, the quality of workpieces can be affected due to bending and rusting of raw materials is solved.

The utility model provides a geocell structure, which relates to the technical field of geocells and comprises a geocell body, a steel wire fixing frame is arranged in the geocell body, a plurality of first limiting rings are symmetrically arranged at two ends of the steel wire fixing frame, and first ground anchors are inserted into the inner sides of the first limiting rings. The geocell body can be divided into a plurality of modules with the same size through the steel wire fixing frames, manual grass planting work of workers is facilitated, meanwhile, the overall strength of the geocell body is enhanced, and the geocell body is prevented from being deformed and damaged due to treading of the workers; the steel wire fixing frame is arranged on the side wave soil layer, the tip end of the steel wire fixing frame is inserted into the side wave soil layer, and then the steel wire fixing frame is tightened and prevented from loosening, so that the strength and stability of the geocell body are improved, meanwhile, potential safety hazards possibly existing when workers plant grass manually are avoided, and the actual use requirement is met.

The invention relates to the technical field of building maintenance, and particularly discloses an external wall thermal insulation layer maintenance method which comprises the following steps: cutting and removing a severely damaged external wall thermal insulation layer; a special plastic anchor bolt with a glue injection function is adopted to reinforce the insulating layer which is not damaged or basically intact in appearance but hollow and slightly deformed; a coating facing is adopted for the external facade of an original building, the actually measured thickness of a heat preservation layer and a facing layer is not larger than 60 mm, and different processes are adopted for the external facade of the original building, facing bricks and real stone paint facing are adopted for the external facade of the original building, or the actually measured thickness of the heat preservation layer and the facing layer is larger than 60 mm although the coating facing is adopted for the external facade of the original building. The thermal insulation layer and the wall body structure are perfectly integrated through the building glue, the plastic anchor bolts, the anti-crack mortar, the waterproof putty and the outer wall facing, the overall performance is good, and the waterproof capacity is high. The invention treats cracking, hollowing and damage of the building external wall thermal insulation layer, treats both symptoms and root causes, and has lasting functions; construction is simple, cost is moderate, and cost performance is high.

The invention discloses a quick connecting structure and method for a single-layer modular cold-formed steel building and a foundation, which mainly comprises a shoot nail-connecting piece mounting system and a guide rail positioning system, and aims to realize efficient and stable quick connection between the single-layer modular cold-formed steel building and the foundation. Wherein the guide rail positioning system comprises channel steel, foundation bolts, flat-end bearing wheels, stiffening ribs and steel plates, the channel steel, the stiffening ribs and the steel plates are fixed to a foundation through the foundation bolts after being welded and fixed, the flat-end bearing wheels are fixed to the channel steel, and a building body can slide to a preset position through the guide rail positioning system. The shoot nail-connecting piece installation system is composed of an embedded steel plate, an anchoring rib, an angle steel connecting piece, a stiffening rib, a shoot nail and a bottom beam, the embedded steel plate and the anchoring rib are welded and then buried in the foundation, one side of the angle steel connecting piece is attached to the bottom beam, the other side of the angle steel connecting piece is attached to the embedded steel plate and connected with the embedded steel plate through the shoot nail, and then connection of the building body and the foundation is completed.

The utility model discloses an inclined column template support frame for cast-in-place of a concrete beam, which is characterized in that a vertical steel pipe upright post and an inclined steel pipe upright post are fixedly arranged on a bearing platform by utilizing bearing platform anchor bolts, and the vertical steel pipe upright post and the inclined steel pipe upright post are pulled into a whole by a horizontal pull rod along the direction of a bridge; the inclined steel pipe stand columns at the corresponding positions in the single span are connected into a whole through corner connectors and horizontal cross rods. The unloading blocks are arranged on the top faces of the vertical steel pipe stand columns and the top faces of the corner connectors respectively. A bearing beam is placed on the top face of the unloading block in the transverse bridge direction, a bailey beam is arranged on the top face of the bearing beam in the bridge direction, a distribution beam is placed on the top face of the bailey beam in the transverse bridge direction, and the batter post formwork supporting frame for concrete beam cast-in-place is formed. The bearing platform is fully used as a supporting point, the inclined steel pipe stand columns are arranged to share the upper load, a strip-shaped foundation does not need to be additionally arranged, construction cost is saved, the spanning capacity of the support is greatly improved, and the support is a preferable scheme for spanning rivers, roads and bridge sites in a large-span mode when the geological environment is poor.

The utility model discloses an overhead ground installation structure which comprises a foundation bolt and a bearing plate, the foundation bolt comprises an outer connecting rod, an inner connecting rod and a rubber mat, the outer connecting rod comprises an outer bottom plate and an outer threaded pipe, the outer threaded pipe is provided with an outer thread, and the bearing plate is evenly provided with through holes matched with the outer threaded pipe. The external thread is fixed in the through hole through external thread self-tapping, the bottom end of the through hole in the bearing plate is further provided with a containing cavity matched with the outer bottom plate, internal threads are arranged on the inner side of the external thread pipe and the inner side of the outer bottom plate, the inner connecting rod comprises an inner bottom plate and an internal thread pipe, and the internal thread pipe is provided with external threads matched with the internal threads of the external thread pipe. The outer connecting rod of the foundation bolt is embedded into the bearing plate in a self-tapping mode, then the inner connecting rod is connected through threads, the bearing plate and the foundation bolt are fixed together, the position of the foundation bolt is fixed, the construction process is convenient, the construction period is shortened, and the bearing plate can be arranged closer to the ground.

The invention relates to the technical field of wind power generation, in particular to a construction method for improving the installation accuracy of a pre-stressed anchor bolt assembly. S1, parts are counted and transported in a fragmented mode; s2, a foundation is cleaned, and a positioning formwork is installed; s3, the lower anchor plates are in butt joint in a segmented mode, and supporting bolt sets are installed; s4, a supporting bolt set is welded, and the lower anchor plate is leveled; s5, leveling anchor bolts are installed, and blackening nuts are fixed; s6, the upper anchor plate is in butt joint in a segmented mode, and the height is S7, the remaining anchor bolts are installed, and the levelness is finely adjusted; and S8, the concentricity is adjusted, and anti-corrosion sealing acceptance check is completed. Through the positioning template of an annular structure and the annular multi-circle bolt hole distribution, multi-layer reference positioning is provided for the fragmented anchor plate; the elevation of the lower anchor plate is adjusted through upper and lower nuts to ensure the concentricity of the upper and lower anchor plates; butt joints of the lower anchor plates are consistent with the main wind direction, butt joints of the upper anchor plates are distributed at 90 degrees, and the concentrated stress of alternating loads on the connecting joints is dispersed.

An underground roadway waterproof supporting construction method comprises the following steps that anchor rods are constructed on the surface of a to-be-supported roadway after drainage, and a first reinforcing mesh and a second reinforcing mesh are installed on the constructed anchor rods; reinforcing ribs are arranged on the first reinforcing mesh at intervals; the second reinforcing mesh comprises a layer of reinforcing mesh sheet and a layer of mining flame-retardant plastic mesh, and the mining flame-retardant plastic mesh is located between the first reinforcing mesh and the reinforcing mesh sheet; a first material is sprayed on the surface of the second reinforcing mesh to construct a supporting layer, grouting holes are reserved in the supporting layer, and the supporting layer is used for providing high-strength waterproof anti-seepage support for the roadway; after the supporting layer is finally set, grouting of a second material is conducted between the supporting layer and the surface of the roadway to be supported through the grouting holes so as to construct a buffer layer, and the buffer layer is used for providing buffer for deformation and movement of the roadway; a gap between every two adjacent supporting layers serves as an expansion joint, and a back-attached type waterproof structure and / or a middle-buried type water bag waterproof structure are / is constructed at the expansion joints.

The invention relates to the technical field of assembly type column base nodes, in particular to a high-bearing-capacity assembly type steel structure column base node which comprises an upper bottom plate, a lower bottom plate and a buckling-restrained energy consumption plate, an upper energy consumption plate is fixed to the bottom of the upper bottom plate, and a lower energy consumption plate is fixed to the top of the lower bottom plate. Buckling-restrained energy dissipation plates which are spaced left and right are fixed between the upper energy dissipation plate and the lower energy dissipation plate, and the upper bottom plate, the upper energy dissipation plate, the lower energy dissipation plate and the lower bottom plate are fixedly installed together through at least four extension anchor bolts with the lower ends pre-embedded in a foundation. The structure is reasonable and compact, and the rigidity and the bearing capacity of the joint are regulated and controlled by changing the thickness of the middle buckling-restrained energy consumption plates and the thickness of the inner energy consumption plates, so that the high bearing capacity performance target is achieved. Under the action of an ultra-large earthquake, the extension anchor bolt on the outermost side yields firstly, then yields the buckling-restrained energy dissipation plate, and finally yields the internal energy dissipation plate, so that a multi-stage energy dissipation system in a plastic stage is formed, and the anti-seismic property of the structure is effectively improved.

A settlement driving control structure for forced-settlement rectification and a settlement driving control method for forced-settlement rectification are provided. The settlement driving control structure includes: a vertical hole is formed in a raft of a building, a lower end of an anchor bolt is anchored at the bottom of the vertical hole and the other end of the anchor bolt extends out of the vertical hole to be connected to a tensioning device, two grouting pipes are configured for grouting to form an anchorage body, and two waterstop rubber rings are spaced apart on a position of the anchor bolt above the anchorage body. For a building with a great load on the upper part, a building foundation and a deep stable stratum are connected as a whole by stress application through the device.

The invention discloses a guide wall for airplane ground test run, which comprises a U-shaped barrier part enclosing an airplane, the barrier part comprises a side guide wall corresponding to the side of the airplane and a rear guide wall corresponding to the tail of the airplane, the side guide wall comprises a windward side and a leeward side, and the leeward side is connected with a fixing frame. The fixing frame is connected with a ground anchor bolt to support the side flow guide wall, and the rear flow guide wall is fixedly connected with ground concrete; the length of the side flow guide wall exceeds the position of the nose during the test run of the airplane, and an air inlet channel is arranged at the side flow guide wall corresponding to the side wing during the test run of the airplane, penetrates through the side flow guide wall and supplements airflow to the engine close to the side wing of the air inlet channel; by arranging the air inlet channel, air flow is introduced from the side face of the aircraft directly facing the engines, the problem that the test is affected by insufficient air suction of the double engines due to the fact that the side face flow guide wall is far longer than the fuselage is solved, the internal and external pressure difference of the flow guide wall is reduced, and test run of the aircraft is facilitated.

The invention discloses an anchor rod anchoring quality grade classification method and system through ultrasonic guided wave detection. The method comprises the steps that A, ultrasonic guided wave defect signals are obtained through an ultrasonic guided wave detection platform; b, performing modal decomposition on the ultrasonic guided wave defect signal by using an HO-VMD algorithm, and performing signal noise reduction processing by taking PCC-E as a fitness function to obtain a noise-reduced ultrasonic guided wave characteristic signal; c, constructing a data set by using the de-noised ultrasonic guided wave characteristic signals and grade labeling data; d, training the constructed anchor rod anchoring quality grade classification model by using the data set to obtain a trained anchor rod anchoring quality grade classification model; and E, judging the input to-be-classified data by using the trained anchor rod anchoring quality grade classification model, and finally obtaining an anchor rod anchoring quality classification grade corresponding to the to-be-classified data. According to the method, accurate and efficient classification of anchoring quality grades in a complex environment can be realized based on an intelligent classification method fusing adaptive signal decomposition and depth time sequence modeling.

The invention relates to the technical field of wind power generation, in particular to a steel reinforced concrete prestressed fan foundation and a construction method, and provides a new structure from the structural form by performing optimization design on a traditional gravity expansion type foundation, and the structure comprises an original fan foundation, a steel reinforced structure and a prestressed system. A foundation stand and a foundation circular truncated cone are arranged on the top of an original fan foundation, and a base plate of the foundation is arranged on the lowest portion of the foundation. The steel rib structure is composed of a profile steel component arranged in the foundation stand, a connecting sleeve connected to profile steel and a vertical erecting steel bar used for fixing the profile steel, and meanwhile corresponding stiffening ribs are arranged at the position of the connecting sleeve. The prestress system is composed of vertically-arranged anchor rods, anchor plates, anchor bolts and circumferential prestress steel bars, and the bearing capacity of the fan foundation can be effectively enhanced. The structure can effectively reduce the use amount of concrete and steel bars, and the steel ribs are high in bearing capacity and replace a large number of steel bars, so that the work amount is reduced, the construction period is shortened and the manufacturing cost is reduced.

The utility model belongs to the technical field of subway tunnel construction, and particularly relates to a subway tunnel anchor bolt supporting plate bracket installation combination tool which comprises a base, a storage box fixedly installed on the top of the base, a storage box arranged in the storage box, a control panel fixedly installed on the front face of the storage box, and a fixed supporting column fixedly installed on the top of the base. A hydraulic cylinder is fixedly mounted at the top of the base, a rotating motor is fixedly mounted at the top of the hydraulic cylinder, a rotating shaft is arranged at one end of the rotating motor, and a first mounting seat is fixedly mounted at the top of the rotating shaft. The storage box and the storage box are arranged at the top of the base and used in cooperation, different construction tools can be conveniently placed in a classified mode, taking and using are convenient, the hydraulic cylinders and the rotating motors are arranged and used in cooperation, and therefore the construction tools can be conveniently taken and used. And the first mounting base, the second mounting base and the third mounting base can be conveniently lifted and rotationally adjusted, and construction work can be better carried out conveniently.