28results about How to "Does not affect traffic" patented technology

The present invention belongs to the technical field of flood prevention and water retaining, and specifically discloses a non-powered flip-type flood prevention baffle device. It comprises: a base fixedly arranged on the ground, an arc-shaped pressure plate and a leaf spring mechanism arranged on the base, the other end of the leaf spring mechanism is connected to a water retaining plate with a hollow structure, and a locking mechanism is also provided on the base, which is used to lock the water retaining plate when the water retaining plate is in a horizontal state, and a limit column for limiting the maximum flipping angle of the water retaining plate. The present invention uses a leaf spring and an arc-shaped pressure plate as the rotating shaft of the flipping movement of the water retaining plate, provides torque for the flipping movement of the water retaining plate, so that the water retaining plate can flip according to a predetermined arc without deviation, and at the same time, the leaf spring mechanism plays the role of sealing and retaining water at the bottom of the device, and cooperates with the locking mechanism to realize automatic upward flipping and water retaining under flooding conditions without power, and automatically returns to the position and locks after the water recedes, without affecting traffic, and has a simple structure and strong flood prevention ability.

The invention relates to a construction method of a steel connecting bridge crossing a road above a metro, which comprises the following steps: S1, pile foundations are constructed on two sides of the road and at positions away from the metro, and the construction steps of the pile foundation on each side comprise: drilling a pouring hole, providing a pile casing, lowering the pile casing into the pouring hole, binding reinforcing steel bars in the pile casing and pouring concrete to form a cast-in-situ bored pile; a pile cap is fixed to the top of the cast-in-situ bored pile; s2, a bridge frame is connected between the pile caps on the two sides in a bridging mode; and S3, splicing the middle section of the steel connecting bridge above the pile cap, moving the middle section of the steel connecting bridge to the connecting bridge frame, splicing two side sections of the steel connecting bridge, and fixing the two side sections with the middle section of the steel connecting bridge and the existing building respectively. According to the method, the hole is drilled above the metro, the outer sleeve pile casing is arranged, the cast-in-situ bored pile is constructed in the outer sleeve pile casing to serve as the pile foundation, stress is guaranteed, meanwhile, disturbance of pile foundation construction on soil around the metro station is greatly reduced, and the influence of steel connecting bridge construction on the metro station below is avoided.

The utility model provides a closed gravel storage bin which comprises a warehouse, a plurality of vehicle entrances and exits arranged on the side wall of the warehouse and electric bin doors installed at the vehicle entrances and exits, a plurality of half walls are arranged in the warehouse, the two ends of each half wall are connected with the two opposite side walls of the warehouse, and the two ends of each half wall are connected with the corresponding electric bin door. The warehouse is divided into a plurality of compartments by the plurality of half walls, and the plurality of vehicle entrances and exits are oppositely arranged on the side wall of each compartment in pairs. The closed sandstone storage bin has the advantages that design is scientific, raised dust is not prone to being diffused out of a warehouse, spraying dust suppression is not needed at an entrance and an exit, and the vehicle entering and exiting efficiency is high.

This invention discloses an automated rotary hopper cleaning structure, relating to the field of pharmaceutical machinery and equipment technology. The invention includes a hopper body, a hollow column fixed to a vertical wall by brackets at its upper and lower ends, a sliding assembly comprising a sliding sleeve slidably mounted on the column, a cleaning bracket connected to one side of the sliding sleeve, a handle structure linked to the sliding sleeve, a pulley assembly located at the upper end of the column, and a counterweight block connected to the sliding sleeve via the pulley assembly and located inside the column; a cleaning cover with a sleeve fixed inside the cleaning bracket, the cleaning cover being fixed to the bottom end of the sleeve; and a pin on the cleaning cover that fits the hopper body to be cleaned. This invention can effectively flush and clean the inner wall of the hopper, facilitating use, and utilizes a contact component to drive the cleaning brush to adhere to the inner wall of the hopper body, resulting in a more thorough cleaning.

This invention relates to a pipe jacking device and its installation method. A planar four-bar linkage A and a hydraulic cylinder A are both located between upper and lower jacks. Two sets of pins at opposite hinge points of the planar four-bar linkage A are connected to the upper and lower jacks respectively, while another set of pins at opposite hinge points are hinged to the piston rod and cylinder body of the hydraulic cylinder A. The hydraulic cylinder A drives the upper jack to extend and retract relative to the lower jack via the planar four-bar linkage A. A groove is formed on the inner wall of the axial section of the liner. Two sets of pins at opposite hinge points of the planar four-bar linkage B are hinged to the piston rod and cylinder body of the hydraulic cylinder C respectively. During the pipe jacking process, the pins at the other set of pins engage with the groove via the drive of the hydraulic cylinder C. The piston rod or cylinder body of the hydraulic cylinder B is connected to the pipe jacking section, and the cylinder body or piston rod of the hydraulic cylinder B is hinged to the cylinder body of the hydraulic cylinder C. This invention eliminates the need for excavators to dig up the road surface for pipe replacement, thus avoiding disruption to road traffic and the surrounding environment, and saving costs.

This invention discloses a bridge pot bearing and control system based on system conversion. A first bearing body and a second bearing body are stacked from top to bottom. The first bearing body has a first mounting plate, and an adjustment component is installed below the first mounting plate. The second bearing body has a second mounting plate, and a test component is installed on the second mounting plate. The test component connects with the adjustment component. While performing pressure testing, the test component, in conjunction with the adjustment component, enables the conversion between three states: fixed pot bearing, unidirectional movable pot bearing, and bidirectional movable pot bearing. This invention monitors the stress on the bearing in real time, calculates the bridge shear force based on the reaction force, and derives the bridge shear force amplification factor under dynamic loads, thus improving bridge design methods and making bridge design safer and more reliable. It can realize the functions of a fixed bearing, a unidirectional movable bearing, or a bidirectional movable bearing, and achieve mutual conversion between bearing types.

The utility model discloses a sinking type shear hinge installation template frock, including first half mould box, second half mould box and connecting plate, first half mould box and second half mould box structure are same, including bottom plate, side plate, end plate and enclosure baffle, bottom plate two sides respectively vertical fixed connection two side plates, and end plate fixed connection is in bottom plate left side, and the enclosure baffle is U type structure, and fixed connection is in two side plates upper end and end plate back and forms a upper end and one side opening's mould box structure, is provided with the installation through -hole no.

The utility model relates to working fluid filtering treatment technical field, and disclose advanced ceramic grinding processing working fluid filtration supply system, including the casing, still include: the baffle, the baffle fixedly connected in the casing, the casing front side is provided with the supply area, the casing right side is provided with the reflux area, the casing is provided with the filter mechanism, the filter mechanism surface is provided with the assembly mechanism, the filter mechanism includes: terminal filter, terminal filter fixedly connected in the casing, this advanced ceramic grinding processing working fluid filtration supply system, through setting up the supply area to the working fluid and makes the whole device to the working fluid supply of processing area and to the filtration of working fluid separate, namely, supply pump and reflux filter assembly independent work, both ensure the double -deck effective filtration to working fluid, and can ensure the flow and pressure of working fluid supply to processing area.

The construction negative pressure type foundation pit drainage device comprises a supporting frame, a pressing plate is arranged in the supporting frame, sealing grooves are formed in the outer walls of the four sides of the pressing plate, sealing rings are clamped in the sealing grooves, the outer walls of the sealing rings make contact with the inner wall of the supporting frame, and the outer walls of the sealing rings make contact with the inner wall of the supporting frame. The supporting frame is arranged at the top of a foundation pit body, a first spring is fixedly connected to the outer wall of the bottom of the pressing plate, the end, away from the pressing plate, of the first spring is fixedly connected to the inner wall of the bottom of the supporting frame, and a negative pressure cavity is defined by the bottom of the pressing plate and the interior of the supporting frame. According to the device, as follow-up vehicles continuously pass through the pressing plate, the device can circularly suck and discharge accumulated water at the bottom of the foundation pit body, vehicle passing is not affected in the drainage process, the device can be repeatedly used, energy is not needed, economic benefits are high, and the use requirements of people are met.

The invention belongs to the technical field of integrated application in the cross technical field, and discloses an intelligent single parking space management and control system which comprises a parking garage and a rectangular rod. A code scanning structure is arranged in the middle of the upper portion of the rectangular rod, vehicle sensing structures are arranged on the two sides of the upper portion of the rectangular rod, an alarm is arranged on the edge of the top end of the parking garage, and a groove is formed in the position, close to the rectangular rod, of the top end of the parking garage. The intelligent single parking space management and control system further comprises a vehicle management structure, the vehicle management structure is installed in the groove of the parking garage and used for blocking vehicles entering the parking garage, and the intelligent single parking space management and control system has the beneficial effects that a centralized entrance and exit barrier gate is omitted, the vehicles can be rapidly driven into the garage to find parking spaces, and the parking space management and control efficiency is improved. The management and control responsibilities are dispersed to each parking space, and the code scanning payment and release are completed beside the parking space only when the vehicle leaves the parking space, thereby thoroughly avoiding the queuing bottleneck at the entrance and exit, and effectively improving the vehicle out-of-garage efficiency.

The application discloses a rail transfer trolley and a motor train unit assembling platform, wherein the rail transfer trolley is arranged below a false trolley and comprises a trolley frame, a lifting device arranged on the trolley frame and used for adjusting the height of the false trolley in the vertical direction by lifting the false trolley back and forth, and a trolley moving device arranged on the trolley frame and used for moving the position of the rail transfer trolley. The rail transfer trolley can lift the false trolley away from the platform by the lifting device, so that the collision between the false trolley and the platform is avoided. Then the rail transfer trolley can move the position by the trolley moving device, so that the false trolley is moved together with the rail transfer trolley, the rapid movement of the trolley body to change the track is realized without changing the structure of the workshop, the personnel passing and operation are not affected, the smooth flow of the workshop is ensured, the project cost is reduced, and the labor intensity of workers is greatly reduced and the production efficiency is improved.

The closed fluorine-lined sampling valve comprises a valve body provided with a sample inlet and a sample outlet, a sampling opening communicated with an inner cavity of the valve body is formed in the bottom end of the valve body, a valve seat is arranged in the sampling opening, and an upper valve cover screwed with a valve rod is arranged at the top end of the valve body. One end of the valve rod stretches into the valve body and gets close to or deviates from the sampling opening through spiral movement so as to control on-off of the sampling opening, the other end of the valve rod stretches out of the upper valve cover and is connected with the six-clack hand wheel so as to drive the valve rod to rotate, and fluorine lining layers are arranged on the inner walls of the valve body, the upper valve cover and the valve seat and the outer wall of the valve rod. The bottom end of the valve body is further provided with a sealed sampling bottle with a sealed rubber seal at a bottle opening, the valve seat is communicated with a sampling needle, the sampling needle penetrates through the sealed rubber seal and extends into the sealed sampling bottle, the valve seat is provided with an exhaust port, and an exhaust needle communicated with the exhaust port and the sealed sampling bottle penetrates through the sealed rubber seal. The sampling valve has the advantages that the overall leakproofness and corrosion resistance of the sampling valve are improved, the sampling efficiency and quality of a sampling medium are guaranteed, and meanwhile the sampling cost is reduced.

The utility model relates to an assembly type viaduct adopting an improved small box girder and a swingable pier, the viaduct comprises a pile foundation, a bearing platform, an anti-shear pin, a prestress stranded wire, an energy consumption assembly, a stand column, a cover beam, a simply supported small box girder and a diaphragm beam, the bearing platform, the stand column and the cover beam are sequentially arranged on the pile foundation, the prestress stranded wire is arranged in the bearing platform, the stand column and the cover beam in a penetrating mode, and the energy consumption assembly is arranged on the diaphragm beam. The two ends of the prestress stranded wire are anchored to the top of the cover beam, a swing interface is formed by the contact faces of the stand column, the bearing platform and the cover beam, and a shear pin and an energy dissipation assembly are arranged on the swing interface. Simply-supported small box girders are arranged on the cover beam, transverse partition beams are arranged at the two ends of a single span below the simply-supported small box girders, and inspection manholes are formed in the transverse partition beams combined below the transversely adjacent simply-supported small box girders. Compared with the prior art, the internal force response of the pier and the foundation under the action of an earthquake is remarkably reduced, effective energy dissipation capacity and self-resetting capacity are provided, prestress detection, maintenance or replacement are facilitated, and rapid repair after the earthquake is achieved.

The utility model discloses a water turbine set top cover waste water collecting device which comprises a negative pressure assembly and at least one set of suction assembly which are connected with each other, the negative pressure assembly is connected with the suction assembly through a liquid pumping pipeline, a liquid pumping control assembly is arranged on the liquid pumping pipeline, and a first liquid level sensor is arranged on the suction assembly. The negative pressure assembly is further connected with a liquid discharging assembly. Only several small-size suction assemblies are arranged in an on-site liquid accumulation area, in a limited water turbine set top cover area, the waste water collection function can be achieved, daily passing and maintenance of a water turbine set are not affected, and the problems that the area of a set top cover is large, multiple water splashing points exist, the water splashing positions are random, the accumulated water thickness is small, the available space is narrow, and the occupied space is large are solved. Therefore, the wastewater collection difficulty is high. In addition, the problem that the failure rate of mechanical parts is increased due to the fact that the site is humid and dirty is solved.

This application discloses a base system for a rail-mounted vehicle charging device, belonging to the field of vehicle charging equipment. It includes an RGV rail, an RGV body, a charging host, and a distribution box. The charging host is mounted on the RGV body; a first connector is provided on the charging host, and a second power distribution head is provided on the distribution box; a charging gun is mounted on the distribution box; the RGV rail includes multiple horizontal rails and multiple vertical rails, forming the movement trajectory of the RGV body; the RGV rail also includes an external rail connected to the horizontal or vertical rails, and the distribution box is mounted on the external rail. The beneficial effect of this application is that by reducing the number of charging hosts to fewer than the number of distribution boxes, and utilizing the RGV body to move the charging hosts to the location requiring charging, the sharing of charging hosts is achieved. It eliminates the need to configure expensive charging hosts at each charging point; configuration can be based on peak demand, avoiding equipment idleness and significantly reducing the overall system cost.

The utility model provides a river channel cleaning device for hydraulic engineering supervision, and mainly relates to the field of river channel cleaning equipment. A river channel cleaning device for hydraulic engineering supervision comprises a fixing strip and an intercepting device arranged on the fixing strip. The intercepting device has the advantages that the intercepting device can intercept garbage floating in a river channel and gather the garbage into a device on a river bank, the garbage floating in the river channel can be intercepted for a long time, the garbage is collected at one position and can be cleaned by people at regular time, and the river channel can be kept clean for a long time; the intercepting device can automatically float on the surface of a water body without sinking or being too high according to the depth change of the river channel water body, the fixing device is arranged, the intercepting device cannot deform along with floating of the water body, garbage cannot float through gaps, and after the fixing device is removed, a small ship can pass through the middle of the intercepting device and cannot be intercepted; the device does not need to be driven by a large amount of energy, is only driven by water flow and cannot block river passage.

The utility model discloses a bridge prestress reinforcing structure which comprises a plurality of bridge piers (1), pile foundations (2) are arranged at the bottoms of the bridge piers (1), a bridge plate (3) is arranged between the two bridge piers (1), the reinforcing structure comprises a supporting beam (4) located at the bottom of the bridge plate (3), a supporting seat is arranged below the supporting beam (4), a plurality of puller bolts (5) which are tightened upwards are arranged on the supporting seat, and the puller bolts (5) are connected with the supporting beam (4). Stand columns (6) extending downwards are arranged at the two ends of the supporting base, the lower ends of the stand columns (6) are fixed to the corresponding pile foundations (2), and one sides of the stand columns (6) are fixed to the corresponding bridge piers (1). The supporting base comprises a base beam (7) located below the supporting beam (4), an arc-shaped beam (8) is arranged below the base beam (7), the arc-shaped beam (8) is connected with the base beam (7), and the two ends of the arc-shaped beam (8) are connected with the corresponding stand columns (6). The utility model has the advantage that the bridge traffic is not influenced during construction reinforcement.

A gantry for edge computing billing and a gantry billing method for edge computing using the gantry, comprising a first support column and a second support column, a crossbeam is provided between the first support column and the second support column, a maintenance installation platform is provided on the crossbeam, the maintenance installation platform comprises a U-shaped guard plate provided along the length direction of the maintenance installation platform, a plurality of fixed connecting rods are provided on the lower bottom plate of the U-shaped guard plate, a support frame is provided at the end of the fixed connecting rod, a monitoring unit is provided at the end of the support frame, and the monitoring unit is connected to the signal of the gantry industrial computer provided in the U-shaped guard plate. The U-shaped guard plate disclosed in the present application is also suitable for containing more structural units, so the edge computing components can be arranged in the U-shaped guard plate, and it is also convenient for maintenance and operation, providing convenience for the maintenance of the edge computing gantry, and does not affect normal road traffic.

The invention relates to a novel fish pond negative pressure valve controlled feces separation and collection filter. The invention comprises a fish pond, a feces separation tank, a biochemical filter tank, a feces inhaler, a feces water supply pipe, a water pump, a water purification pipe, a sewage pipe, a separation tank outlet pipe, a water surface inlet device, and a biochemical filter tank inlet pipe. A valve is also installed on the pipeline. A very small water pump can be used to achieve a good filtering effect. The invention can save more water, electricity, and labor, and completely does not use chemical textiles as consumables for intercepting garbage solids, so as to achieve a more environmentally friendly effect.

This invention relates to a flexible safety protection device for welding steel bridges on road ramps, comprising an inner section of a steel box girder, an outer section of a steel box girder, and cantilever arms connecting them on both sides. These are installed on two piers, with supporting towers on the outside of the piers. A longitudinal weld is formed between the inner and outer sections of the steel box girder. A flexible protection device is installed below the longitudinal weld. The position of the flexible protection device is adjusted and fixed by steel wire ropes installed on both sides, catching any fasteners that accidentally detach from the longitudinal weld. This invention provides a flexible protection method for welding longitudinal seams on ramp steel bridges above normally open roads, ensuring the normal and safe passage of vehicles on existing roads.

The utility model discloses a processing table with positioning and deviation rectifying functions, and relates to the technical field of circuit board production, the processing table comprises a base, feeding positioning assemblies and separation positioning assemblies, a processing table plate is fixed in the middle of the upper part of the base, the processing table plate is of an inverted-T-shaped structure, the feeding positioning assemblies are installed in grooves in the two sides of the processing table plate, and the separation positioning assemblies are installed in the grooves in the two sides of the processing table plate. And the feeding positioning assembly comprises a fixing block, a rotating shaft, a driving motor, a side frame, a feeding roller, a rotating motor, a convex frame, a first telescopic rod and a positioning side plate, the rotating shaft is rotationally arranged on the inner side of the fixing block, one end of the outer portion of the rotating shaft penetrates through the fixing block to be provided with the driving motor, and the side frame is fixed to one side of the rotating shaft. According to the machining table with the positioning and deviation rectifying functions, the left positioning side plate and the right positioning side plate can conduct positioning and deviation rectifying on the left sides and the right sides of the multiple circuit boards in the middle of the machining table plate, the multiple partition plates can separate the multiple circuit boards and conduct positioning and deviation rectifying on the front sides and the rear sides of the multiple circuit boards, and the machining table is suitable for multi-station circuit boards.

The application discloses a layered roadbed segmented inclined grouting construction device and method, which comprises a moving mechanism, the moving mechanism comprising a driving vehicle, a hydraulic cylinder and a grout tank being fixedly installed on the driving vehicle, and a connecting rod assembly being arranged at an output end of the hydraulic cylinder; a grouting mechanism, the grouting mechanism comprising a sleeve, the sleeve being fixedly connected with the connecting rod assembly, a grouting outer pipe being slidably connected in the sleeve, a grouting inner pipe being fixedly connected in the grouting outer pipe, the grouting inner pipe being communicated with the grout tank, a plurality of first one-way liquid outlet assemblies being arranged on the grouting outer pipe, a plurality of groups of second one-way liquid outlet assemblies being arranged on the grouting inner pipe, and a segmented guide assembly being slidably connected in the grouting outer pipe through a first transmission assembly, the segmented guide assembly being located between the grouting inner pipe and the grouting outer pipe. The application can respectively grout different depth layered roadbeds from the side of the roadbed, avoid damage to the road surface structure caused by drilling, reduce the number of grouting holes, and do not affect traffic.

The application belongs to the technical field of robots, and particularly relates to a robot with offset control and displacement control, which comprises a chassis, a track walking mechanism, a driving system, a visual auxiliary module, a rescue obstacle-removing manipulator and a control system; further comprises a transportation platform, the transportation platform is installed on the chassis, a damping air cushion is arranged on the transportation platform, compression springs are distributed in the damping air cushion, and a supporting plate is arranged on the top of the damping air cushion; the protective cover is used for resisting the impact of falling rocks to protect materials and personnel, avoiding material damage and secondary injury of trapped personnel, and significantly improving the continuous operation capability of the robot in dangerous environments; when the robot runs on a rugged and bumpy road, the materials are easy to slide, fall or even roll, block the passage or cause secondary danger, the telescopic rod is expanded and cooperates with the pull rope to constrain and limit the materials, reliable fixation is realized on the premise of not damaging the materials, and the transportation process is ensured to be stable.

The utility model belongs to the field of subway engineering technology, concretely is a track special buckle, including installation buckle piece, the lateral wall of installation buckle piece is equipped with screw hole, the inside longitudinal through -hole of screw hole is provided with threaded rod, the lower end of threaded rod is integrally formed with the bight, the upper end of threaded rod outside is sleeved with gasket, the upper end of gasket is connected with the fastening nut, the simple structure of the application, installation buckle piece adopts 3mm thick steel plate to make, when fixing later period has the firm firmness of stable, after installation completion, ensure firm and do not influence train traffic, can also feedback ballast settlement simultaneously, buckle installation process is convenient and does not hurt steel rail, and the stability is high, will not cause the drop of falling because of own reason, can be repeatedly used, can carry out track normal monitoring at any time, can be widely used in subway construction.

The utility model discloses a kind of cylinder door structure of wind generating set and wind generating set, it is related to wind power generation technical field, wherein, the cylinder door structure of wind generating set includes door frame, cylinder door, drainage assembly;Door frame is installed on the tower tube of wind generating set, door hole is formed in door frame, the side of door frame close to door hole is formed with water guide groove and is provided with first sealing assembly, water guide groove and sealing assembly are sequentially arranged along the direction of inside tower tube to outside tower tube, and water guide groove is arranged in the bottom frame of door frame, and rainwater grate is arranged at the slot of water guide groove;Cylinder door is set in door hole, and one end of cylinder door is hinged in one side frame of door frame, the outer edge of cylinder door is provided with second sealing assembly, and first sealing assembly and second sealing assembly are sealingly cooperated;Drainage assembly includes drain pipe, and drain pipe is communicated with water guide groove.The cylinder door structure of wind generating set provided by the utility model can effectively avoid rainwater to infiltrate into tower tube, and ensure the dryness inside tower tube.

A multi-beam inertial navigation antenna installation device comprises a rod body, a supporting plate and a supporting rod, the rod body is used for being fixedly installed on a side board of a ship body, the lower end of the rod body is used for installing a transducer probe, a first flange is arranged at the top of the rod body, an installation hole is formed in the middle of the supporting plate, and a first fastener penetrates into the installation hole and then is connected with the first flange in a screwed mode. At least one supporting rod is mounted on the supporting plate, and the top of the supporting rod is used for mounting an inertial navigation antenna. The support plate is detachably mounted above the rod body for mounting the transducer probe, the support rod is mounted on the support plate in a positioned welding manner, and the inertial navigation antenna is mounted on the support rod, so that the inertial navigation antenna is more convenient to mount and better in stability, and the relative position of the inertial navigation antenna and the transducer probe can be obtained through simple calculation; system calibration is facilitated, and the data accuracy is improved.

The invention provides a porous door opening crossing type steel pipe support quick dismantling device and method.The device comprises strip-shaped foundations arranged on the two sides and the center of a two-way lane, steel pile stand columns are fixed to the tops of the strip-shaped foundations, bearing cross beams are fixed to the tops of the steel pipe stand columns located on the same side, and longitudinal beams are fixed to the tops of the bearing cross beams in a crossing mode; a bottom die supporting system used for supporting a bottom die of the cast-in-place box beam is fixed to the top of the longitudinal beam. A plurality of finish rolling deformed steel bars are arranged between the cast-in-place box girder and the bearing cross beam in a penetrating mode, and the lower portions of the finish rolling deformed steel bars are matched with the bottom end face of the bearing cross beam through lower portion limiting structures. And a supporting and lowering mechanism which is used for supporting the finish rolling deformed steel bars and can alternately lower the finish rolling deformed steel bars is mounted between the upper parts of the finish rolling deformed steel bars and the top end surface of the cast-in-place box girder. It can be ensured that vehicles which are crossed can still pass normally in the support dismantling process, and the method is suitable for dismantling the cast-in-place box girder door opening type steel pipe support with large passing pressure.