46results about How to "Improve the support effect" patented technology

The utility model discloses a large-section hydraulic tunnel main adit intersection excavation support door frame in the technical field of tunnel construction, which comprises a reinforcing door frame and a connecting piece, the reinforcing door frame comprises outer door beams and inner door beams, a semicircular door beam is fixedly connected between the top ends of the inner door beams, and a door frame cross beam is fixedly connected between the tops of the outer door beams; the semicircular door beam is connected with the inner side of the portal cross beam, linear reinforcing ribs are fixedly arranged between the outer door beam and the inner door beam, a plurality of sections of inclined reinforcing ribs are fixedly arranged between the semicircular door beam and the portal cross beam, oblique angle supporting pieces are jointly connected between the tops of the inclined reinforcing ribs, and the oblique angle supporting pieces are fixedly connected between the outer door beam and the portal cross beam at the same time; according to the utility model, the outer door beam can be connected and fixed with the main hole support, the inner door beam and the semicircular door beam are in transition connection with the branch hole bracket, and the outer door beam and the inner door beam are connected through the linear reinforcing rib, so that the support at the intersection forms a whole, the stress is dispersed, and a good support effect is provided.

The application discloses a foundation pit supporting structure, relates to the technical field of foundation pit supporting, and comprises a supporting assembly and a reinforcing assembly. The supporting assembly comprises a plurality of base units and a plurality of supporting units. The base units are in abutment with the pit wall on one side of the foundation pit and the pit wall at the bottom. The plurality of supporting units are connected with the plurality of base units, the plurality of supporting units are connected with each other, and the supporting units are in abutment with the pit wall on one side of the foundation pit. The reinforcing assembly comprises a plurality of fixing seats and a plurality of reinforcing pieces. The fixing seats are connected with the foundation on one side of the foundation pit, and the plurality of supporting units are connected with the fixing seats. The reinforcing pieces are located on one side of the supporting assembly, one end of the reinforcing pieces is connected with the fixing seats, and the other end of the reinforcing pieces is connected with the base units. The application can improve the structural strength of the foundation pit supporting structure as a whole and facilitate subsequent construction of construction personnel in the foundation pit.

The invention discloses a soft rock large deformation control method and a rapid support system suitable for TBM tunnel construction method characteristics, the method is implemented based on an anchoring support system composed of a short anchoring support system and a long anchoring support system, and the method is suitable for an open TBM construction scene: in a TBM tunneling process, before a shield is exposed, the shield is not exposed, and the long anchoring support system is not exposed; a short anchoring support system of a full-length anchoring anchor rod structure is timely arranged in the radial direction of the 180-degree area of the upper half ring of the tunnel section through a cutter head edge cutter hole, and the short anchoring support system and a shield cooperate to form an initial deformation control system; after the shield is exposed, according to the deformation degree of the surrounding rock, full-length anchoring anchor rods or pre-stressed anchor cables are adopted in a graded mode, long anchoring supporting systems are arranged at intervals with the short anchoring supporting systems in a spiral mode, then the long anchoring supporting systems are cooperatively borne with steel arches, reinforcing meshes and sprayed concrete, and the long anchoring supporting systems are matched with 70m system sprayed concrete and 1000m secondary lining construction behind a tunnel face. According to the method, the displacement around the hole is effectively controlled, the TBM is prevented from being stuck, and the construction safety and efficiency of the open-type TBM in the soft rock large-deformation geology are improved.

The utility model discloses an anchor rod for coal mine reinforcement, and particularly relates to the technical field of anchor rods, the anchor rod comprises a supporting net layer, a transverse supporting piece is arranged at the bottom of the supporting net layer, the transverse supporting piece comprises a top plate, vertical plates are fixed to the bottoms of the two ends of the top plate, a transverse plate is fixed to the bottom of the top plate, and the top plate is connected with a main anchor rod in a penetrating mode. The anchor rod comprises a main anchor rod body and a vertical plate, the vertical plate is connected with an auxiliary anchor rod body in a penetrating mode, the main anchor rod body and the auxiliary anchor rod body each comprise a metal rod body, a pressing plate is arranged at one end of each metal rod body, and the portions, located below the pressing plates, of the metal rod bodies are connected with locking nuts in a threaded mode. Under the simultaneous fixing action of the main anchor rod and the auxiliary anchor rod, the supporting range is expanded, the working intensity of mounting the anchor rods by workers is effectively reduced, the working efficiency of the workers is improved, and the supporting effect is further improved.

This utility model provides a feeding compensation device for a fully automatic film coating machine, including a supporting base plate placed on an external lifting platform for supporting materials, a plurality of placement slots equally spaced on the supporting base plate, a plurality of support rods with one end set on the supporting base plate within each placement slot and the other end located outside the placement slot, and a counterweight block set on the other end of each support rod. The length of the support rod is greater than the length of the placement slot, and the support rod is fitted with the placement slot with a clearance. By subsequently increasing the lifting stroke of the lifting platform, the lifting frequency of the lifting platform is reduced, thereby reducing the energy consumption of the lifting platform due to frequent start-stop.

The utility model discloses a coal mine tunnel fault passing rapid supporting device which comprises bases distributed at the bottoms of the two sides of a tunnel, single-cylinder hydraulic props are fixedly arranged on the bases, a supporting top plate is fixedly arranged at the upper ends of the single-cylinder hydraulic props, and a supporting side plate is hinged to the end, close to the side face of the tunnel, of the supporting top plate. One end of the support top plate is hinged to the support top plate, the other end of the support top plate is hinged to an extension top plate, the other end of the extension top plate is internally connected with a butt joint plate in an inserted mode, the butt joint plate is used for butt joint to achieve closing, and a pressure monitoring mechanism is arranged on the upper surface of the support top plate. The pressure sensor collects roof pressure data in real time, and the roof pressure data is analyzed and processed by the controller to achieve real-time monitoring and early warning of the roof pressure. Meanwhile, the extension top plate is matched with the butt joint plate, the extension top plate is driven to turn over through the second hydraulic push rod, the position of the butt joint plate is adjusted through the fastening bolt, roadway top plates with different widths can be flexibly adapted, and fully-closed supporting is achieved.

The utility model provides a kind of light supporting device for steeply inclined thin coal seam belongs to coal mining technical field, the light supporting device for steeply inclined thin coal seam includes side support frame in both sides, light supporting assembly is set between side support frame, light supporting assembly includes supporting bottom plate and supporting net in both sides, one side of supporting net is connected with steel chain, another side is connected with steel chain, electric winch is set on side support frame, one end of steel chain is connected with supporting net, and the other end is fixedly connected with the reel of electric winch by ring buckle;Side support frame includes stand, crossbeam and inclined strut, trapezoidal bottom plate is set in the bottom of stand, crossbeam is fixedly connected with stand by bolt, one end of inclined strut is connected with stand, and the other end is connected with bottom plate;Multiple groups of sliding slots are set on crossbeam, pulley is rotatably set in sliding slot, steel chain is wound around pulley;The utility model can solve the problem that dynamic support demand cannot be met.

The utility model relates to pipeline trench support field discloses a novel support structure for pipeline trench support, including maintenance board, the lateral wall fixedly connected with track of maintenance board, the inside of track is provided with slide, the surface of track is opened with positioning hole, the inner wall screw thread connection of positioning hole has the locating bolt, the surface fixedly connected with support shaft of slide, the outer wall fixedly connected with spherical seat of support shaft, the inner wall rotationally connected with the regulating steel ball of spherical seat. In the utility model, through being provided with track, slide, positioning hole, locating bolt and so on, when supporting pipeline trench, can adapt to the width of trench to carry out horizontal support while, maintenance board can carry out two -two splicing and enlarge the support area, and when the one end of trench changes too wide or too narrow, one end of maintenance board can be reduced or enlarged to carry out angle adjustment, improve the support effect while, improve the adaptability of support operation.

The present application relates to the field of building construction, and discloses a design method for inclined pile support layout based on construction facade, aiming at the problem of low matching degree between the existing inclined pile support layout theoretical model and actual working conditions, lack of real-time feedback leading to safety hazards, the present application constructs an initial inclined pile support demand model through multi-dimensional facade information, determines the layout position and parameters of sample inclined pile support according to the characteristics of different facade partitions, collects the actual stress and deformation data of the pilot inclined pile support as feedback, calculates the deviation and corrects the initial model, solves the global force vector and support distribution points using the corrected model, and automatically generates the layout position, angle, specification and installation parameters of the remaining inclined pile supports. The present application realizes dynamic coupling of the theoretical model and the actual working conditions through physical calibration of the pilot inclined pile support, eliminates systematic errors such as uneven foundation, material differences, etc., significantly improves construction safety and optimizes the distribution of inclined pile supports, and is suitable for complex construction scenes such as deep foundation pit support.

This utility model discloses a drilling rig for smooth blasting construction of deep-buried high-stress tunnels, relating to the field of tunnel construction technology. It includes a frame, on which a rock-drilling assembly and a drive component are mounted. The rock-drilling assembly includes a drill rod, and the drive component drives the drill rod to move. A drill bit is located at the end of the drill rod away from the drive component. A temporary support assembly is mounted on the drill rod, including a mounting ring. Connecting rods are hinged to both ends of a support plate, with one connecting rod hinged to the side wall of the mounting ring. A slider is hinged to the end of the other connecting rod away from the support plate, and the slider slides against the side wall of the mounting ring. A first spring, made of shape memory metal, is located on the side of the support plate near the mounting ring. Both ends of the first spring are fixedly connected to adjacent side walls to reduce the risk of borehole collapse in high-stress construction environments.

The invention discloses a reinforcing device suitable for a soft soil layer shield tunnel. The reinforcing device comprises a shield body, a containing cavity is formed in the rear end of the shield body, a push-out oil cylinder is arranged in the containing cavity, and a plurality of supporting assemblies are placed in the containing cavity; the supporting assembly comprises supporting rods which are mutually hinged, the supporting rods are hinged to form a ring, the hinged positions of the supporting rods alternately abut against the outer wall and the inner wall of the containing cavity, the supporting rods are of a contractile structure, and inserting rods are arranged at the hinged positions of the supporting rods above the tunnel and inserted into the inner wall of the tunnel through pushing. The supporting assembly has the advantages that the supporting assembly at the outermost end is pushed out of the containing cavity through the lifting rod, then the supporting assembly is clamped in a shield post-grouting layer during duct piece paving, the supporting assembly is opened to form annular supporting, and the reinforcing strength is improved.

The invention discloses a multi-form functional sofa fully filled with sponge. The multi-form functional sofa comprises a left armrest, a right armrest, a back, a reconfigurable seat cushion, connecting base cloth and connecting back cloth, velcro tapes are arranged among different geometric blocks of the reconfigurable seat cushion, the relative positions of the geometric blocks are changed, and the geometric blocks are fixed by the Velcro tapes, so that the whole reconfigurable seat cushion can form at least two different bearing surface forms, and the invention relates to the technical field of furniture equipment. The multifunctional chair can be flexibly switched into four forms of a sofa, a bench, a deck chair and a mattress, meets various use scenes such as daily sitting, lying, multi-person rest and temporary sleep, greatly improves the utilization rate of home space, and is particularly suitable for small-sized families or multifunctional leisure areas; the left armrest, the right armrest, the back and the reconfigurable seat cushion are all filled with sponge, are soft in texture and good in bearing performance, can fit a human body curve and effectively relieve fatigue feeling of long-time sitting and long-time lying, and a leather coating material is wear-resistant and easy to clean and has comfort and practicability.

This application relates to a building support structure, including a base frame and a protective plate slidably connected to the upper surface of the base frame. One side wall of the base frame has an installation groove, and the protective plate is located on the side of the base frame near the groove opening. The base frame is equipped with an adjusting component and a fixing component for securing the base frame and the bottom of the foundation pit. The base frame also has a driving assembly for pushing the protective plate towards the corresponding side wall of the foundation pit. The driving assembly includes a driving rod located on one side of the protective plate and rotatably connected to the upper surface of the base frame, with the rotation point of the driving rod located at its center. A protrusion is hinged to one end of the driving rod near the protective plate, and the protrusion slides along the length of the protective plate. A limiting spring is fixedly connected to the protrusion, and the end of the limiting spring away from the protrusion is fixedly connected to the protective plate, creating an angle between the driving rod and the protective plate. The base frame also has a power assembly for rotating the driving rod. This application improves the support effect of the support structure on the side wall of the foundation pit.

The invention provides a special-shaped grouting anchor rod supporting system and a model selection construction method, and belongs to the technical field of underground engineering. The method comprises the steps that firstly, physical and mechanical parameters of surrounding rock, grouting and a supporting structure are obtained; then a plane strain mechanical analysis model of the tunnel-grouting body-surrounding rock-supporting structure is established; a finite element numerical simulation calculation model is established based on the model, and mechanical responses of various special-shaped grouting body sections under the same grouting amount are analyzed; comprehensively evaluating and preferably selecting an optimal grouting body section form by taking mechanical response data as a judgment index and adopting a multi-index decision-making method such as an analytic hierarchy process; and finally, anchor rod arrangement and grouting parameters are determined according to the optimized section for construction, and a closed special-shaped grouting body is formed. According to the special-shaped grouting anchor rod supporting system and the model selection construction method, active optimization of surrounding rock stress distribution is achieved, plastic zone development and tunnel deformation are effectively controlled, and the supporting effect and economical efficiency are improved.

This utility model relates to the field of steel formwork support technology, specifically to a steel formwork support structure for shear walls, including a steel formwork and a support assembly. The support assembly includes multiple support leg structures, support seats, connecting rod structures, and support rod structures. The multiple support leg structures are spaced apart below the support seats. One end of the connecting rod structure is fixedly connected to the side of the support seat, and the other end of the connecting rod structure is detachably connected to the steel formwork. The support rod structure includes a rotating rod, an adjusting rod group, and an outer rod. The bottom of the rotating rod is rotatably connected to the support seat. The adjusting rod group is located between the rotating rod and the support seat. The outer rod is threadedly connected to the rotating rod and is located outside the rotating rod. The steel formwork has a slot, and the end of the outer rod away from the rotating rod is located inside the slot. Because the connecting rod structure connects and limits the steel formwork, the entire support assembly will not shake during the support of the steel formwork, thereby improving the support effect.

The utility model relates to related technical field of steel sheet pile support, concretely is a kind of detachable steel sheet pile support mechanism for municipal road pipe network reconstruction, it includes: the steel sheet pile body of two quantity, two steel sheet pile body adjacent side is provided with two quantity of H-shaped steel.This utility model can adjust the height of support mechanism according to the stress point of steel sheet pile under the cooperation of steel sheet pile body, H-shaped steel, adjusting sleeve, connecting block, adjusting clamping strip, tooth slot and dismounting mechanism, and further improve the support effect at the stress point of steel sheet pile, solve the problem that the detachable steel sheet pile support mechanism for municipal road pipe network reconstruction can quickly disassemble and assemble steel sheet pile support mechanism, but it cannot adjust the height of support mechanism according to the stress point of steel sheet pile, so that the stress point of steel sheet pile is relatively weak, and the support effect is affected.

The utility model discloses a permanent and temporary combined protection system for treating a cavity with collapsed top of a tunnel, and aims to solve the problems that the cavity with collapsed top is easy to cause safety accidents in tunnel construction, and the traditional treatment method has many limitations. The core of the protection system is a protection air bag, the protection air bag is made of rubber and can be customized according to the actual situation of the collapsed cavity, the collapsed cavity can be filled with the protection air bag in a conformal mode to form temporary supporting after inflation, and permanent supporting can be achieved after concrete is injected in the inflation state. The protective air bag is provided with an inflation inlet, an exhaust port and a tubular exhaust channel and is matched with the valve assembly, the air pressure monitoring device, the grouting pipe and the auxiliary fixing assembly to work cooperatively. During construction, a collapsed cavity is pre-reinforced and scanned to obtain data to manufacture the air bag, and the air bag is converted into permanent support through temporary support after installation. The system can effectively prevent rockfall, guarantees construction safety, adapts to complex collapsed cavities, is low in cost, convenient to construct and short in construction period, has remarkable advantages compared with a traditional method, and provides a more reliable solution for tunnel construction.

The utility model discloses a TBM driving anchor rod positioning device, including anchor rod, the outer wall of anchor rod is provided with screw threads, and the inner chamber of anchor rod is hollow setting, the bottom welding of anchor rod has the anchor head, the outer wall of anchor head is seted up and has vertical strip through -hole, the inner chamber of anchor head is hollow setting, and the bottom setting of anchor head is concave, and the outer wall of anchor head is fixedly connected with the positioning structure. The device is applied to the positioning link of anchor rod during TBM driving, ensures that the anchor rod is in the middle, the positioning structure can prevent the anchor rod from deviating or contacting the hole wall in the grouting process, avoids forming " dry hole section " to cause grouting not to be dense, improves the uniformity of anchoring force, and the central anchor rod makes the slurry evenly wrap the pole body, forms the complete anchoring body, and the standard preparation work and operation process are the basis of grouting anchor rod construction, and through the vertical strip through -hole of anchor head and hollow setting, the grouting quality is optimized.

The utility model relates to the technical field of pit foundation supporting devices, and discloses a pit foundation supporting device convenient to fix, which comprises a base, a sliding groove and a rotating groove are respectively arranged on the outer wall of the base, a movable groove is arranged at the top of the base, and a motor and a limiting plate are respectively fixedly assembled at the top of the base. A second bevel gear is fixedly assembled on an output shaft of the motor. According to the pit foundation supporting device convenient to fix, through the arrangement of the base, the sliding groove, the movable groove, the rotating groove, the supporting plate and the rotating rod, in the using process of the supporting device, a user can enable the supporting plate to be driven by the rotating rod to rotate and stand up through operation of a motor, and the supporting plate can also be reversely rotated to be recycled into the movable groove; and therefore, a user can conveniently carry and mount the device in the state that the supporting plate is retracted, the supporting plate can be automatically released to carry out supporting operation, and the convenience and practicability of the device are improved.

This utility model provides a multifunctional scaffolding device, relating to the field of scaffolding technology, comprising: a support part; a stepping part inside the support part; a climbing part inside the support part; and a fall protection part inside the support part; the connecting sleeve block, locking frame, and locking pin of the fall protection part can reliably fix the stepping part and the climbing part, preventing components from loosening and falling off, while providing fall protection for construction workers, improving the practicality and safety of the scaffolding. It solves the problem that existing scaffolding often uses simple snap-fit ​​methods to fix the steps, relying solely on the mechanical engagement between the steps and the frame for installation, thus only providing basic positioning functions and lacking anti-detachment locking devices and secondary reinforcement structures. This makes it difficult to withstand dynamic loads and external impacts during construction. In actual construction, frequent stepping by construction workers and collisions during material handling can easily cause displacement of the snap-fit ​​parts between the steps and the frame, leading to loosening or even detachment of the steps.

This utility model relates to the field of civil engineering construction technology, and discloses a steel sheet pile support structure for foundation pit excavation. It includes steel sheet columns connected by a fixing assembly. A fixing groove is formed on the side of each steel sheet column, extending into the soil. A sleeve is installed inside the fixing groove, and multiple protruding grooves are formed on the outer surface of the sleeve. An insertion block is movably installed inside each protruding groove, and a movable column is movably installed inside the sleeve. This utility model further enhances the interaction between the support structure and the foundation through the installation of the sleeve. When the movable insertion block inside the protruding groove, the movable column inside the sleeve, and the retaining plate are pushed, the inclined surface on the retaining plate can smoothly push the insertion block into the protruding groove, thereby achieving a firm fixation between the support structure and the soil. This eliminates the need for a large amount of support structure, facilitating operations inside the foundation pit.

The invention relates to the field of constructional engineering equipment, and discloses a constructional engineering early-dismantling supporting device which comprises a stand column, a lifting mechanism is arranged at the upper end of the stand column, and a support and a top block are installed at the upper end of the stand column through the lifting mechanism. By rotating the threaded sleeve, stabilizing the position of the threaded sleeve through the positioning assembly and stabilizing the position of the stud through the first limiting assembly, the stud can be driven by the stud to move longitudinally, so that the supporting height of the support is adjusted through the lifting mechanism, and the support can adapt to the supporting positions of early-dismantling formworks with different heights; the distance between the top block and the support can be conveniently adjusted through the adjusting assembly so as to adapt to early-dismantling formworks of different thicknesses, the sliding rod is pulled to slide in the sliding groove, the position of the sliding rod is stabilized through the second limiting assembly, and then the distance between the supporting block and the supporting rod can be adjusted through the extending assembly so as to adapt to early-dismantling formworks of different thicknesses. Therefore, the supporting area of the top block can be increased through the supporting block, and the supporting position of the early-dismantling supporting device is more stable.

The utility model relates to the technical field of pile body supporting, in particular to an inter-pile body supporting structure convenient to disassemble and assemble, which comprises a supporting base, a movable supporting plate arranged on the right side of the supporting base, a supporting mechanism arranged on the top of the supporting base and connected with the left side of the supporting plate, and a protection assembly arranged on the outer side of the supporting plate. Due to the arrangement of the supporting mechanism, when the supporting structure is connected with the supporting plate and the supporting base, auxiliary supporting can be carried out on a prefabricated column in a pile foundation, the stability of the prefabricated column used for supporting is guaranteed, and the supporting effect of the prefabricated column is improved. Other tools are not needed when the pile body supporting structure is mounted and dismounted, operation is convenient and fast, the working efficiency is greatly improved, water between the pile body supporting structure and the connecting hole can be conveniently discharged under the action of the connecting hole and the through groove, damage to the prefabricated column caused by excessive water is avoided, and the supporting effect of the pile body supporting structure on a pile foundation is improved.

The embodiment of the utility model provides foundation pit supporting early warning equipment, and relates to the technical field of foundation pit supporting. The foundation pit supporting early warning equipment comprises a base, one end of the base is movably connected with a supporting plate, and an adjusting assembly is arranged at the bottom of the base. According to the embodiment of the invention, through cooperation of a hand wheel, a threaded rod, a first sliding block and other components in the adjusting mechanism, the angle of the supporting plate can be conveniently adjusted, so that the equipment can adapt to foundation pits of different shapes and working conditions, the universality and applicability of the equipment are improved, and the supporting effect on the foundation pits is enhanced; the linkage mechanism can sensitively sense the angle change of the supporting plate, when the supporting plate has large angle change due to abnormal conditions such as deformation of the foundation pit, the supporting plate can drive the second sliding block to slide, finally the impact rod impacts the switch base, the buzzer is triggered to send out an early warning signal, and the design can remind related personnel of possible dangers of the foundation pit in time; therefore, corresponding measures can be taken, and construction safety is guaranteed.

This application relates to a motorized emergency repair device and method suitable for tunnel arch collapses on existing railway lines. The motorized repair device includes a mobile platform, a deployable protective module, a scanning module, a trimming module, and an additive manufacturing module. The deployable protective module is mounted on the mobile platform and includes an arc-shaped support arm that can be deployed to form an arched framework, and a protective net suspended from the arc-shaped support arm. The scanning module, also mounted on the mobile platform, is used to perform three-dimensional scanning of the collapsed area. The trimming module, also mounted on the mobile platform, is used to trim the rock mass contour of the collapsed area based on the data obtained from the three-dimensional scan and generate trimmed contour data. The additive manufacturing module, also mounted on the mobile platform, is used to manufacture support structure components that match the trimmed rock mass contour of the collapsed area based on the trimmed contour data. This enables safe, efficient, and precise emergency repairs for sudden situations such as tunnel arch collapses.