514 results about "Sheet pile" patented technology

The invention discloses a drainage and prevention combined type embankment structure and a construction method, and belongs to the technical field of water conservancy projects. The embankment structure comprises a base and a protection structure arranged on the base in a coherent mode, the protection structure is composed of main pipe piles and arc-shaped sheet piles which are arranged at intervals, and an embankment is divided into a backwater side and a waterside. Side edge and top consolidation bodies are formed at the bottoms of the main pipe piles through grouting of the auxiliary pipe piles and the miniature pipes so as to enhance bearing; the arc-shaped sheet piles are tightly connected with the main pipe piles through the connecting end plates, the cap beams, the locking opening pipes and the connecting bolts, and a sealing anti-seepage system is formed on the backwater side. Meanwhile, a water collecting and draining system is arranged in the main pipe pile, and water on the water facing side is allowed to be drained orderly through the water collecting holes, the graded gravel materials, the water collecting pipe and the drainage blind pipe. Through combination of'prevention 'and'drainage', the anti-seepage safety of the backwater side is ensured, seepage water is timely dredged to eliminate seepage pressure, damage to the structure caused by water pressure accumulation is avoided, and unification of stability and safety of the embankment structure is achieved.

The utility model relates to a steel casing connected fixed bracket steel sheet pile guiding device which comprises steel casings, electric control hydraulic connecting rods, steel brackets and a limiting guiding frame, a sliding groove is formed in the side wall of the tail section of the steel casing, the electric control hydraulic connecting rods are installed in the sliding grooves of the adjacent steel casings, the steel brackets are arranged in the sliding grooves in the peripheries of the steel casings, and the limiting guiding frame is connected with the steel casings. Limiting guide frames are installed on the steel corbels to serve as steel sheet pile guide devices. The steel sheet pile driving guiding device has the advantages that the steel sheet pile driving guiding device can be rapidly built, a traditional welding procedure is omitted, the overall stability of the structure can be guaranteed through the electric control hydraulic connecting rod, the steel sheet pile driving quality is improved through the limiting guiding frame, and the technical and economic benefits are remarkable.

The invention relates to the technical field of municipal engineering construction, in particular to an anti-seepage foundation pit supporting structure without grooving and pipe burying and a real-time monitoring construction method.The anti-seepage foundation pit supporting structure comprises a pipeline extending in the X-axis direction; at least two steel sheet piles; the two steel sheet piles are symmetrically arranged on the two sides of the pipeline, each steel sheet pile is provided with a parallel section and bent sections at the two ends, an opening is reserved between the bent sections at the ends of the steel sheet piles located on the two sides of the pipeline, and a reinforcing and plugging assembly is arranged at the opening; the jet grouting piles are overlapped, gaps are complemented through the reinforcing piles, an underground water permeation channel is thoroughly cut off, and water gushing is completely eradicated; the jet grouting column wraps the buckling groove of the steel sheet pile, gap water seepage is blocked, the connection rigidity is enhanced, stress monitoring captures mechanical response of the pipeline in real time, the pipeline stress is controlled within a safety range, construction disturbance is reduced, and structural stability and pipeline safety are guaranteed.

The invention belongs to the technical field of underground passage construction, and particularly relates to a counter-force structure construction method for pipe roof jacking, which comprises the following steps of: driving support piles at two ends of a corresponding side line behind a working well to form corresponding counter-force columns; steel sheet piles are arranged between the two counter-force columns along the corresponding side line behind the working well in a driving mode, counter-force steel plates are installed on the counter-force walls, and grouting pipes penetrate through the counter-force steel plates, then stretch into the rear undisturbed soil from gaps between the steel sheet piles and are fixedly connected with the rear undisturbed soil into a whole through grouting. Through the synergistic effect of the counter-force column formed by the supporting piles and the undisturbed soil subjected to grouting consolidation, a composite counter-force system is constructed, and the bearing capacity and stability of the counter-force structure are effectively improved. The protection piles and the supporting piles are meshed with each other to form a closed or semi-closed structure, the stability of the soil body around the working well is further enhanced by matching with the reinforcing effect of the top beams and the inclined struts, and collapse or displacement of the soil body in the jacking process is avoided.

The invention relates to the technical field of steel sheet pile welding machining, in particular to a welding device for steel sheet pile machining, which is characterized in that a positioning mechanism and a fitting mechanism are arranged on an L-shaped adjusting table, and a cutting mechanism is arranged on the fitting mechanism; the auxiliary guiding device capable of being matched with pile bodies of different specifications and sizes can be rapidly assembled to the end of the steel sheet pile, and multi-angle and multi-direction stable limiting guiding can be conducted on portable cutting tools such as a handheld plasma cutting gun through the auxiliary guiding device; an operator can drive a cutting tool to stably and continuously perform cutting along the irregular section contour of the steel sheet pile; in addition, workers can conveniently carry the auxiliary guiding device to quickly transfer the operation position, so that groove cutting can be directly carried out on site in a steel sheet pile storage yard, the tedious process of repeatedly transporting a large number of pile bodies to fixed large equipment is avoided, and the dependence on heavy special equipment is remarkably reduced.

The application discloses a kind of mucky soil area pit-in-pit construction methods, the method comprises: one, construction pit bottom reinforcing construction structure;Two, construction steel sheet pile;Three, excavate top layer earthwork;Four, excavate and support inside earthwork excavation area;Five, excavate first layer annular soil pit and third layer inside soil pit;Six, excavate second layer annular soil pit and fourth layer inside soil pit;Seven, pour pit-in-pit pile cap and remove steel sheet pile.The application is excavated before whole earthwork, and steel sheet pile is struck, and pit-in-pit and steel sheet pile outside earthwork excavation are formed under the premise of guaranteeing construction safety, and the construction period of whole raft is greatly shortened, and large foundation pit whole supporting system is formed faster, and the exposure time of deep foundation pit is reduced, and the construction operation risk of mucky soil deep foundation pit is reduced;Through the process of pre-striking steel sheet pile, steel sheet pile whole pile is completed once, and the strength of steel sheet pile body and water-resisting effect are guaranteed.

The utility model relates to the technical field of geotechnical engineering and railway construction, and particularly discloses a vibration reduction and deformation resistance steel sheet pile for deep foundation pit engineering close to an existing railway line, which comprises a steel sheet pile, a vertical load-bearing steel bar, a connecting component, a vibration isolation and reduction interlayer and a protective steel plate. By adopting a composite structure form of steel sheet piles, vibration isolation and reduction interlayers and vertical load-bearing steel bars, the structure reinforcing function and the vibration isolation function are organically combined, and a brand-new supporting structure system is formed; the vertical stressed steel bars are matched with the vibration isolation and reduction interlayer and the damping spring shock absorbers, the vertical stressed steel bars mainly share tensile stress to improve the stress state, the vibration isolation and reduction interlayer mainly absorbs vibration energy to weaken vibration transmission, and the comprehensive performance of the steel sheet pile is remarkably improved through the combined action of the vibration isolation and reduction interlayer and the damping spring shock absorbers; meanwhile, according to the scheme, by optimizing arrangement of the vertical load-bearing steel bars, selection of vibration isolation and reduction materials and arrangement of connecting components, the whole structure has the good reinforcing effect and vibration reduction performance, and construction convenience and economical efficiency are taken into consideration.

The utility model discloses a modularized steel enclosing purlin assembly convenient to quickly install, which comprises a steel sheet pile, a plurality of steel enclosing purlins and a plurality of steel enclosing purlins, the I-shaped steel enclosing purlins are transversely arranged on the inner sides of the steel sheet piles; the steel support is horizontally arranged between the I-shaped steel enclosing purlins, the steel support comprises a fixed head, a movable head and a supporting column, and the supporting column is arranged between the fixed head and the movable head; the bearing plate is clamped and fixed on the I-shaped steel enclosing purlin in a U shape and is used for bearing the steel support; rectangular mounting plates are arranged at the end of the fixed head and the end of the movable head, a U-shaped sliding rail is arranged on the bearing plate, an opening of the sliding rail faces upwards, and the mounting plates can be embedded in the sliding rail in a sliding mode. According to the steel enclosing purlin assembly, the bearing plates fixed in a clamped mode are arranged, the bearing plates are used for bearing the steel supports, rapid positioning and connection between the I-shaped steel enclosing purlins and the steel supports are achieved, and the construction convenience and the use efficiency of the whole steel enclosing purlin assembly are improved.

The present application relates to sheet pile mold technical field, especially to ecological concrete sheet pile special mold, including upper mold and lower mold, the both ends of upper mold are detachably installed with head plate, the inside of lower mold is provided with sheet pile forming mechanism, the upper end of sheet pile forming mechanism is provided with cantilever beam mechanism, cantilever beam mechanism is used to form through hole on the back of sheet pile, the outside of lower mold is provided with forming auxiliary mechanism, sheet pile forming mechanism includes symmetrically arranged mortise forming plate and tenon forming plate, the lower end of mortise forming plate and the lower end of tenon forming plate are rotatably connected with lower mold.The present application sets up sheet pile forming mechanism, utilizes the mutual cooperation between mortise forming plate, tenon forming plate and forming template, not only can guarantee the precision of sheet pile splicing surface and the structural stability after splicing, but also can integrally shape plant-growing pot for planting plants on the surface of sheet pile, without secondary processing in later period, effectively improves the ecological functionality of mold.

The utility model discloses a Larsen steel sheet pile installation guiding and positioning auxiliary device, which belongs to the technical field of Larsen steel sheet pile support and comprises an A-type clamping plate, a B-type clamping plate, a fastener, a fixing pile, a Larsen steel sheet pile body and a pile hole. The utility model provides a stable construction platform, so that the inserting and driving process of the Larsen steel sheet pile body is simpler and more convenient. Through guiding of the guiding device, constructors can more easily control the inserting position and angle of the Larsen steel sheet pile body, the Larsen steel sheet pile body can be prevented from inclining or toppling in the inserting and driving process, and therefore potential safety accidents are avoided. The device can adapt to different geological conditions, and steel sheet pile construction can be carried out in various complex geological environments. The method has the advantages of construction simplicity and safety, positioning accuracy, quality control, adaptability, flexibility, economic benefits and the like, and is beneficial to improving the construction efficiency, ensuring the engineering quality and reducing the construction cost.

The invention belongs to the technical field of civil engineering monitoring and computers, and discloses a method for predicting the pile sinking and pulling speed of a steel sheet pile and a related device. The steel sheet pile sinking and pulling rate prediction method comprises the steps that task data are obtained according to a to-be-predicted steel sheet pile; inputting the task data into a trained pile sinking and pulling rate prediction model, performing rate prediction, and outputting a steel sheet pile sinking and pulling rate prediction result; furthermore, the pile sinking and pulling rate prediction model comprises a data preprocessing module, a Transform module, a BiLSTM module and a data post-processing module. According to the technical scheme disclosed by the invention, the pile sinking and pulling rate prediction model is constructed by taking the Transform-BiLSTM series hybrid network as a core modeling framework, and meanwhile, a multi-stage feature cooperation mechanism is introduced, so that the technical problems of high calculation cost, insufficient generalization ability, limited prediction precision and the like existing in an existing prediction scheme are solved.

The application discloses a method for reinforcing and supporting soft soil layers along a coast and rapidly recycling steel sheet piles, and the construction method comprises the following steps: measuring data, formulating a construction scheme, conducting a construction test, correcting a theoretical analysis, organizing implementation, implementing deviation correction, and recycling materials. According to the method, the pore water in the soil is slowly drained by arranging vertical drainage plates, the pore ratio is reduced, the foundation is deformed, the strength of the foundation soil is gradually increased, the drainage distance is shortened by arranging the vertical drainage plates, the consolidation of the foundation is accelerated, the preloading period of the preloading project is shortened, the foundation can reach a good consolidation effect in a short period of time, the growth of the shear strength of the foundation soil is accelerated, the rate of the improvement of the bearing capacity of the foundation is always greater than the rate of the increase of the construction load, and the stability of the foundation is ensured, the vertical supporting system is formed by combining the lock buckle of the pipe pile and the steel sheet pile, so that the rapid enclosure construction is facilitated, the pipe pile and the steel sheet pile are convenient to disassemble and recycle, and the prefabricated assembly construction is realized.

The utility model discloses a pipe pile and sheet pile combined wading retaining structure which comprises a prestressed pipe pile, a launching ramp, an upstream face pipe pile, a straining beam and a steel sheet pile. The multiple prestressed pipe piles are evenly distributed at equal intervals and directly penetrate into a soil body bearing layer along the bank of a water area or sequentially penetrate into a water body, a soil layer and the soil body bearing layer in the water area. The launching ramp is laid at the top ends of the prestressed pipe piles, the upstream face pipe piles and the steel sheet piles are arranged on the outer side of the lower position of the launching ramp and sequentially penetrate into a water body, a soil layer and a soil body bearing layer in a water area, and the straining beams are installed at the top ends of the upstream face pipe piles and the steel sheet piles. The foundation structure of the launching ramp is compact in structure, the foundation structure of the launching ramp is constructed in the mode that the pipe piles and the sheet piles are combined, the launching ramp can be supported and protected, cofferdam drainage construction is not needed, the construction work amount, the construction period and the construction cost of the whole structure are greatly reduced, the structure is stable, and reliability is good.

The utility model discloses pile pulling equipment for pulling out a ground barrier. The pile pulling equipment comprises a Larsen steel sheet pile and a pile head fixed to the bottom of the Larsen steel sheet pile, a baffle groove is formed in the front side wall of the side, away from the Larsen steel sheet pile, of the pile head, a one-way plate capable of rotating relative to the direction close to the Larsen steel sheet pile is installed on the baffle groove, and a plate receding hole is formed in the position, right opposite to the baffle groove, of the Larsen steel sheet pile. And when the one-way plate rotates to be horizontal, the free end of the one-way plate is lapped on the lower opening edge of the plate yielding hole. According to the pile pulling equipment for pulling out the ground barrier, the ground barrier pile can be very conveniently pulled out on the premise that large-area excavation is not needed, and meanwhile the cost is low.

The utility model relates to a larsen steel sheet pile auxiliary instrument technical field, and disclose a kind of supporting structure of larsen steel sheet pile, including including being set in the inside of two larsen steel sheet pile body supporting assembly, the supporting assembly has support rod, contact block one, guide plate, contact block two, contact block one is fixedly installed in one side of support rod, and the side of support rod away from contact block one is screw-connected with adjusting screw, the side of adjusting screw away from support rod is rotatably installed with connecting block by rotating block, the side of connecting block away from adjusting screw is provided with several extension rods, contact block two is connected with the side of extension rod away from adjusting screw at the last end, contact block two and contact block one;By supporting assembly, without frequent assembly, it is convenient to improve construction efficiency, reduce labor intensity, and the initial distance can be adjusted, and the use flexibility is higher, and it is convenient to improve assembly efficiency.

This invention discloses a simplified calculation method for determining the length of anchorless sheet piles in bank protection reinforcement, belonging to the field of foundation pit support technology. The method includes the following steps: Step S1, performing pile length sensitivity analysis to examine the influence of the total sheet pile length L, soil cohesion c, and internal friction angle on the pile top displacement; Step S2, establishing a pile top displacement prediction formula based on the passive earth pressure coefficient theory and fitting multiple sets of working condition data; Step S3, establishing a simplified design process of "parameter determination - formula inversion - optimization verification," using the pile top displacement prediction formula to invert and solve for the optimized pile length based on soil parameters and the maximum pile top displacement, and comparing it with the minimum pile length that satisfies kick-toe stability to determine the final design pile length. This invention simplifies "trial calculation iteration" to "precise inversion," improving the design efficiency of anchorless sheet piles and achieving a balance between safety and economy by quantifying the influence of parameters.

The invention provides a steel sheet pile cofferdam structure, which belongs to the field of cofferdam buildings, and comprises a plurality of steel sheet pile bodies which can be spliced with one another; the multiple steel sheet pile bodies are driven into the deep bottom of a river channel through a pile driver, and every two adjacent steel sheet pile bodies are connected in an inserted mode. The multiple steel sheet pile bodies are matched with the corner pieces to jointly define a rectangular cofferdam. The corner pieces are located at the four corners of the rectangular cofferdam. A plurality of rectangular enclosing purlin assemblies which are arranged from top to bottom are arranged on the inner wall of the rectangular cofferdam, a plurality of supporting assemblies are evenly arranged in the enclosing purlin assemblies, and the supporting assemblies abut against and are matched with the inner wall of the rectangular cofferdam; the supporting assemblies in one-to-one correspondence in the enclosing purlin assemblies from top to bottom are jointly and fixedly connected through cooperation of bolt rods and nuts. By means of the three-point supporting design, the adjustable assembly and the modular linkage structure, the problems of insufficient supporting strength, poor deformation adaptability and overall stability of the deep excavation cofferdam are solved in a targeted mode, and the construction safety and the structural reliability are remarkably improved.

The H-shaped steel and Larsen steel sheet pile combined cofferdam is reliable in connection, easy and convenient to construct and high in construction safety. The connecting structure comprises Larsen steel sheet piles, split bolts and a steel waist beam, the Larsen steel sheet piles are arranged on the two sides of the cofferdam, and the Larsen steel sheet piles on the same side are sequentially connected together. The steel waist beams are arranged on the two sides of the cofferdam and fixedly installed on the upper portions of the Larsen steel sheet piles, and the row of Larsen steel sheet piles on the same side are connected in series and fixed together. The split bolts are connected with the steel waist beams, and the steel waist beams on the two sides are fixed together. The device is characterized by further comprising a TC lock catch and H-shaped steel, the H-shaped steel is vertically arranged on the two sides of the cofferdam, the upper portion of the H-shaped steel is installed on the steel waist beam through the TC lock catch, and the bottom of the H-shaped steel extends downwards and exceeds the bottom of the Larsen steel sheet pile 1.

The application discloses a sheet pile combined pile construction method and belongs to the technical field of pile foundation construction. The construction method comprises the following steps: S1: according to the soil layer attribute, the pile body sinking depth and the insertion depth and angle of the reinforcing part are determined, and a wall hole is formed in the corresponding position of the pile body; S2: the reinforcing mechanism is assembled; the reinforcing mechanism comprises a reinforcing plate, a guide device and a power device, one end of the reinforcing plate is a clamping end; the power device is electrically connected with an external power supply device; the guide device is arranged on the reinforcing plate, the power device is arranged on the side surface of the clamping end away from the reinforcing plate, and an integrated structure is formed; S3: the reinforcing mechanism is hoisted into the designated position in the pile body, the other end of the reinforcing plate is adjusted to be aligned with the wall hole, and then the power device is controlled to push the reinforcing plate to pass through the wall hole and push out the pile body. The application has the advantages of simple operation, the reinforcing plate can be punched around the pile body, the vertical bearing capacity and the horizontal bearing capacity of the pile foundation can be effectively improved, and the construction difficulty and the construction cost of the pile foundation are reduced.

A method for manufacturing a large-scale balance weight of a steel sheet pile ship lift, which simplifies the processing flow of the large-scale balance weight. The method first cuts a continuous casting steel blank into single pieces of steel sheet pile with grooves, and measures and marks the steel sheet pile. Then, two groups of steel sheet pile are assembled together by processing and pre-installing gap pads. After the preliminary assembly is completed, the balance weight is marked again, and then the locking bolt holes, pin shaft holes and lifting lug holes are drilled and processed, and the holes are counterbored. The next step is to cut and install the edge plates at the top and bottom of the grooves. The trial lifting is performed and the lifting shaft hole reinforcing plates are pre-installed to ensure the stability of the structure. The stop seat plates are further processed and installed to provide protection for the final stability. Finally, the overall performance of the balance weight is verified by the second trial lifting, and the remaining edge plates are pre-installed. The present application can realize efficient processing of large-scale steel sheet pile balance weight by using conventional general equipment.

The invention discloses a supporting and dewatering integrated device and a construction method, and mainly relates to the field of steel sheet piles. Comprising a steel sheet pile body, a flow dividing unit, a mud discharging unit and a grouting unit. The interior of the steel sheet pile body is a cavity, and the steel sheet pile body is provided with a multifunctional processing opening. The diversion unit comprises a plurality of water inlets and a plurality of baffle plates, the water inlets and the baffle plates are arranged on the steel sheet pile body, the baffle plates of the diversion unit separate clear water from silt, and the mud discharging unit is used for discharging separated mud. The device has the beneficial effects that the device is used for construction supporting of the water-rich silty-fine sand geology, supporting, drainage and grouting are integrated, the accident situation caused by the change of the pressure of soil bodies on the two sides of the steel sheet pile in the construction process is avoided, the water body pressure is balanced, meanwhile, slurry rich in original soil bodies can be collected, and the construction efficiency is improved. Compared with a traditional construction method, the construction method has the advantage that the effect is better.

The application relates to a water guide wall with controllable permeability, and belongs to the technical field of water guide walls.The water guide wall is composed of a rubber ring, a guide pipe, a double-layer porous steel plate, a rubber bag and a controller for controlling water pressure in the rubber bag, a plurality of holes are formed in the double-layer porous steel plate, the inner walls of the holes are provided with the rubber rings, one rubber bag is arranged in each hole, the two rubber bags are connected by the guide pipe, the rubber bags in the double-layer porous steel plate are connected in series by the guide pipe to form a dragon, and the controller for controlling water pressure in the rubber bag is connected to the head and tail of the dragon.The holes in the steel plate are filled and the holes have gaps by controlling the expansion and contraction of the rubber bags, so that the switching of water blocking and water permeation of the wall body is realized.The water guide wall can be used as a permeable reaction wall supporting structure to replace the existing steel sheet pile technology, and can be switched between water permeation and water blocking after use, so that the application scenarios are more abundant.

The invention provides a bridge ground tie beam foundation pit supporting auxiliary device, and relates to the technical field of foundation pit steel sheet pile supporting, the bridge ground tie beam foundation pit supporting auxiliary device comprises a row of steel sheet pile main body pieces, and the structures on the row of steel sheet pile main body pieces are the same; a tripping detection piece is mounted on the steel sheet pile main body piece; the tripping detection piece is used for detecting splicing tripping; a splicing limiting piece is mounted on the steel sheet pile main body piece; a tilting auxiliary part is mounted on the steel sheet pile main body part; a pushing piece is mounted on the tilting head auxiliary piece; the tripping detection piece is adopted to be matched with the steel sheet pile body piece, after piling is completed, the connection stability of the curled edge buckle is detected, and the situation that the curled edge buckle located on the underground part is not adjusted in time when the tripping risk occurs is avoided; the problem that according to an existing bridge ground tie beam foundation pit supporting steel sheet pile, the buckle butt joint quality cannot be conveniently and automatically prompted is solved.

The invention belongs to the technical field of road buried glass fiber reinforced plastic mortar pipe culvert construction, and particularly relates to a solid waste resourceful treatment method for double-row glass fiber reinforced plastic mortar pipe construction, which comprises the following steps of: vertically excavating a foundation pit, supporting by using Larsen U-shaped steel sheet piles, compacting a base, and replacing and filling undesirable soil with natural gravel soil. After the base is accepted and accepted, an inverted filter layer is laid, and gravels of 20 cm are laid. Reinforced concrete end and middle prefabricated blocks are prefabricated in a factory, and asbestos cushion layers are attached into the prefabricated blocks. And the elevation and the axis of the pipe culvert are accurately measured, a temporary weight is arranged in the pipe culvert to prevent floating, the double-row glass fiber reinforced plastic sand inclusion pipe culvert is hoisted in place, and cushion layer attachment is checked. The method comprises the following steps: mixing and pouring mixed slurry consisting of solid waste ash and quick-hardening cement by using special equipment, backfilling the mixed slurry until the elevation of an excavated pavement is below 30cm, then backfilling slag to the excavated surface of the roadbed, and compacting by using a light road roller. And entering a curing period after compaction. According to the method, solid waste resource utilization with the liquid fly ash and the furnace slag as the core is achieved, and the construction efficiency is remarkably improved.

The utility model provides a soil nail steel sheet pile composite supporting device suitable for a deep foundation pit. The soil nail steel sheet pile composite supporting device comprises a steel sheet pile assembly; the sleeve is arranged on one side of the steel sheet pile assembly; the soil nail assembly is arranged in the casing pipe; the gasket is arranged on the outer side face of the soil nail assembly in a sleeving mode; the nut is in threaded connection with the outer side face of the soil nail assembly. According to the soil nail steel sheet pile composite supporting device suitable for the deep foundation pit, the installation ring, the connecting ring, the installation frame, the sliding rod, the spring, the baffle, the check ring, the penetrating groove and other structures are matched with one another, after grouting is completed, elasticity of the spring can push the baffle, and therefore the baffle blocks the penetrating groove, and the soil nail steel sheet pile composite supporting device is convenient to use. In this way, slurry entering the soil nail assembly can be prevented from flowing out, and the grouting effect of the soil nail assembly is improved.

This invention relates to a tie-type anchored pile-slab wall composite structure and a jacking and correction device, belonging to the field of ancient building correction technology. The single pile foundation of the tie-type anchored pile-slab wall composite structure and jacking and correction device is cast in the soil layer below the stone masonry foundation. A column base is installed on the single pile foundation. The bottom of the jacking and correction device is installed on the column base, and the top is installed at the bottom of the stone masonry foundation. One end of the pressure correction device is fixed to the jacking and correction device, and the other end is anchored to the external soil-rock bearing layer via pulleys. The external steel plate is pasted on the outer surface of the stone masonry foundation, and a retaining plate is installed on the outside of the stone masonry foundation above the single pile foundation. This invention uses a combination of jacking and pressure correction devices for precise control and accurate correction during the correction of ancient building stone masonry foundations. Furthermore, the tie-type anchored pile-slab wall composite structure strengthens the stone masonry foundation, improving its stability.

The application discloses an assembled sheet pile structure which is composed of fixed sheet piles and spliced sheet piles; the fixed sheet pile is composed of a fixed sheet pile body and a connecting sleeve one, and the connecting sleeve one is arranged with two upper portions which are vertically fixed to the middle of the inner side surface of the fixed sheet pile body; one of the fixed sheet piles can be equipped with multiple spliced sheet piles; the length of the fixed sheet pile and the spliced sheet pile is relatively short; the fixed sheet pile is easy to be punched into the foundation, and the fixed sheet pile is not easy to be bent; the spliced sheet pile is easy to be assembled to the top of the fixed sheet pile; the fixed sheet pile and the spliced sheet pile are connected through the cooperation of the connecting sleeve one and the connecting rod; the spliced sheet pile and the spliced sheet pile are connected through the cooperation of the connecting sleeve two and the connecting rod; and the application is simple to disassemble and assemble, and the sheet pile is not easy to be bent.

The invention discloses a supporting and balancing device for emergency repair of double-row large-diameter deeply-buried pipelines and a construction method thereof, the device comprises a supporting system and an enclosure structure, the supporting system comprises steel supports, steel inclined struts and steel enclosing purlins, and the enclosure structure comprises steel sheet piles, triangular supports and guide supports. The steel sheet piles sink into soil bodies on the two sides of a pipeline through the guide supports and are tightly attached to the open caisson, the steel enclosing purlins are fixed to the inner sides of the steel sheet piles through the triangular supports, the steel supports are longitudinally fixed between the two steel enclosing purlins, and the steel inclined struts are obliquely arranged between the open caisson and the steel enclosing purlins to form a triangular stable system. According to the construction method, device installation, foundation pit excavation, pipeline repairing and dismantling backfilling are completed according to preset steps. The stability and the supporting capacity of the foundation pit are greatly improved, the method is suitable for large-diameter deeply-buried pipeline emergency repair scenes, construction is efficient and convenient, safety accidents can be effectively avoided, and practicability is high.

The utility model discloses a steel sheet pile supporting structure which is applied to the field of steel sheet piles and comprises a first pile plate, a second pile plate is arranged on the back face of the first pile plate, fixing frames are connected to the opposite sides of the first pile plate and the second pile plate in a bolted mode, and connecting blocks are arranged in the fixing frames. And two screw rods are arranged at the top of the connecting block in a penetrating mode, the two ends of each screw rod are welded to the interior of the fixing frame, the bottom ends of the surfaces of the screw rods are in threaded connection with adjusting nuts, and through grooves are formed in the first pile plate and the second pile plate correspondingly. The device can have the height adjusting function, can make up the distance difference generated when a steel sheet pile is driven in, facilitates installation and fixation of profile steel by personnel, is good in flexibility, can conveniently pull out a pile plate outwards, is simple and convenient to operate, can prevent sand or fluid from passing through, facilitates penetration of a hook for leveraging force, and is high in practicability.

The application discloses a steel sheet pile reverse pressure type sinking pile method suitable for limited construction space, and belongs to the field of construction technology. The method comprises the following steps: setting a guide beam on each side of the axis of the steel sheet pile sinking position, and setting a plurality of guide piles on the length direction outside the guide beam; connecting and inserting the steel sheet pile to be sunk into the space formed between the two guide beams; pushing the hanger to the sinking pile section for assembly, and installing the assembled hanger on the top of the adjacent four guide piles forming a rectangle corresponding to the sinking pile section; making the steel sheet pile clamp bite the steel sheet pile to be sunk; sinking the pile in sections; making the steel sheet pile clamp separate from the steel sheet pile which has been sunk; adjusting the position of the cross beam to the steel sheet pile to be sunk above, and preparing for the next sinking pile; and moving the hanger to the next sinking pile section when the sinking of the steel sheet pile in the sinking pile section is completed. The method is simple and convenient to operate; the sinking of the steel sheet pile can be realized by setting the guide beam, the guide pile and the hanger.