869 results about "Sheet pile" patented technology

The invention belongs to the technical field of steel sheet piles, and discloses a steel sheet pile for compensating stratum loss during pile pulling and a construction method.The steel sheet pile comprises a plurality of steel sheet pile units, and each steel sheet pile unit comprises a plurality of steel sheet piles; the foundation pit sides of the steel sheet pile units are connected with a plurality of compensation bags, and grouting systems are arranged on the foundation pit sides of the compensation bags. The foundation pit side of the steel sheet pile is coated with viscous grease, the side, facing the steel sheet pile, of the compensation bag is coated with pressure-sensitive adhesive, and the compensation bag is temporarily connected with the steel sheet pile; the grouting system comprises a main grouting pipe, the bottom of the main grouting pipe is connected with a horizontal grouting pipe, the side, facing the steel sheet pile, of the horizontal grouting pipe is connected with a plurality of flow dividing pipes, and the flow dividing pipes correspond to the compensation bags. A vertical branch pipe is upwards separated from the middle position of the flow dividing pipe, and is connected with a grouting connector at the bottom end of the corresponding compensation bag; the tail end of the flow dividing pipe is downwards divided into an inclined grouting pipeline, and the inclined grouting pipeline faces the lower portion of the steel sheet pile. The technical problem that filling is not timely due to the fact that grouting pipes are installed to fill gaps after steel sheet piles are pulled out in the prior art is solved.

The invention belongs to the technical field of foundation pit supporting, and particularly relates to a steel sheet pile joint sealing performance in-situ detection process and a monitoring method. Through the cooperative design of the embedded pipe and the detection hole, the embedded pipe is filled with the liquid reagent, and if leakage happens to the joint of the steel sheet pile, the solid reagent in the detection hole can make contact with the liquid reagent to change color. Leaking stoppage is carried out after the color changing position is detected, and long-term monitoring is carried out by monitoring the soil body index of the leaking position so as to be used as a supplement of a detection process. The problem of ex-situ detection of steel sheet pile joint leakage and the problem of difficulty in leaking stoppage are solved, and the normal function of the steel sheet pile under the long-term working condition can be guaranteed.

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 invention discloses an ecological pile steel formwork system and a construction method thereof. The ecological pile steel formwork system comprises a foundation module, a base, a pile body end plate and a pile head end plate. The basic module comprises a bottom die, a side die and a hinge, the bottom die and the side die are connected through the hinge, and a convex template is arranged on the bottom die; the base comprises a square steel tube, single-spliced channel steel and double-spliced channel steel, and the square steel tube, the single-spliced channel steel and the double-spliced channel steel are connected through welding; the pile body end plate comprises at least one of a steel template with a pile tip and a steel template without the pile tip; the pile head end plate comprises a pile head steel template and an ecological hole steel template, and the ecological hole steel template is arranged on the pile head steel template; wherein the basic module and the base are fixed through welding; the foundation module, the pile body end plates and the pile head end plates are transversely connected through U-shaped bolts; lower hanging steel plates are arranged on the lower portion of the pile body end plate and the lower portion of the pile head end plate and inserted into the double-spliced channel steel of the base to be positioned. The device is simple in structure and convenient to mount and dismount.

The invention discloses an in-situ solidification construction method for a highway shallow foundation in a water-rich section of a permafrost region. The in-situ solidification construction method comprises the following steps: step 1, preparation at the early stage of construction; secondly, steel sheet pile enclosure water insulation is conducted; thirdly, in-situ soil solidification construction is conducted; fourthly, dynamic compaction encryption treatment is conducted; step 5, quality detection and molding acceptance inspection; and step 6, subsequent environmental protection and safety guarantee. Three dimensions of a steel sheet pile waterproof technology, a high-weather-resistance composite curing material in-situ curing technology and a dynamic compaction technology are integrated, and a set of systematized and standardized construction scheme is formed. According to the multi-dimensional combined method, the foundation treatment effect is improved, the comprehensiveness and pertinence of construction are enhanced, and a more effective solution is provided for road foundation treatment in the water-rich section of the permafrost region.

The invention relates to the technical field of steel sheet pile cofferdams, in particular to a deep and long steel sheet pile cofferdam structure which comprises two steel pipe sets symmetrically distributed front and back, each steel pipe set is composed of a plurality of steel pipes linearly and evenly distributed, and a steel sheet pile is jointly connected between every two adjacent steel pipes. The deep and long steel sheet pile cofferdam structure further comprises a plurality of supporting mechanisms, and the supporting mechanisms are evenly distributed on the front sides and the rear sides of the two steel pipe sets. The sealing limiting parts and the supporting parts are alternately distributed and connected with each other, so that the multiple sealing limiting parts and the multiple supporting parts form a whole, two gaps with the same structure and adjacent positions are mutually complemented, force transmission can be conducted between the multiple sealing limiting parts and the multiple supporting parts, stress is uniform, and the sealing effect is good. And therefore, the overall supporting and limiting strength of the multiple sealing and limiting parts and the multiple supporting parts on the multiple steel pipes and the multiple steel sheet piles is improved, and the phenomenon that the single section of the cofferdam deforms is avoided.

The invention belongs to the technical field of foundation pit construction, and particularly relates to a foundation pit supporting structure and a construction method thereof.The foundation pit supporting structure comprises a plurality of steel pipe piles arranged in the circumferential direction of a foundation pit at intervals, first lock catches are fixed to the outer sides of the steel pipe piles, Larsen steel sheet piles are arranged between the steel pipe piles, and second lock catches are fixed to the two sides of each Larsen steel sheet pile; the adjacent steel pipe piles and Larsen steel sheet piles are connected in a clamped mode through corresponding first lock catches and second lock catches, surrounding purlins are fixed to the inner sides of the multiple steel pipe piles, and concrete supporting pieces are arranged between the surrounding purlins and the corresponding Larsen steel sheet piles. The steel pipe piles are matched with the Larsen steel sheet piles, so that the rigidity of a supporting system is guaranteed while rapid supporting is guaranteed, and less garbage is generated after dismantling.

The invention relates to an active unloading sheet pile revetment reinforcement design method and structure, and belongs to the technical field of revetment reinforcement. Channel parameters and soil mechanical characteristics are measured, design reinforcement piles with the same height as original pile foundations are arranged on the back edge of a revetment, and a pile spacing calculation formula is established based on the soil arching effect; the load sharing ratio of the reinforcing pile is controlled and designed by adjusting the pile diameter; the reinforcing structure designed through the method comprises prestressed sheet piles, a bearing platform, designed reinforcing piles, a gravity type retaining wall, a slope protection surface layer, a concrete coping, an original mud surface line and a designed mud surface line, the pile diameter and the pile distance of the designed reinforcing piles are dynamically adjusted according to the dredging depth, and the thicker a dredging soil layer is, the larger the soil pressure is, the larger the pile diameter is, and the denser the distance is. An original revetment upper structure does not need to be dismantled, the construction period is greatly shortened, and resource waste is reduced; the front line of the revetment does not move forwards, and use of an existing navigable water area is not affected; the construction mode is flexible, land dry land or water construction can be selected according to surrounding conditions, the construction period is short, the speed is high, and the construction cost is low.

The invention discloses an anti-clogging rapid laying construction method for municipal drainage pipelines in a pluvial area, and relates to the technical field of municipal engineering. According to the method, through construction early-stage investigation and pretreatment, a high-pressure jet grouting pile and a steel sheet pile are combined to form a water interception curtain and vacuum well point dewatering is adopted, and a pipeline with a nanometer hydrophobic coating and a flow guide protruding edge is prefabricated; during rapid excavation, rapid hardening concrete is used for supporting, and a prefabricated module foundation with a permeable blind pipe is laid; laser positioning is adopted for hoisting, and double sealing is adopted for interfaces; graded gravel and a curing agent are used for backfilling, and ground penetrating radar is matched for detection; acceptance inspection is combined with a closed water test and an endoscope, and an intelligent monitoring device is installed to be connected into an intelligent system. The problems that construction efficiency is low and pipelines are prone to clogging in rainy areas are solved, the construction period is shortened by 30% or above, the initial clogging rate is reduced by 60%, and the method is suitable for drainage projects in areas with the annual precipitation being 800 mm or above.

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 Larsen steel sheet pile construction, and discloses a Larsen steel sheet pile cofferdam construction method suitable for a deepwater area, which comprises the following construction steps: 1) arranging a construction platform; (2) four positioning piles are driven into the construction position to form a construction area; 3) arranging a guide frame in the construction area, wherein the guide frame is provided with a guide arm; (4) a plurality of Larsen steel sheet piles are driven along the guide arms, the bottoms of the Larsen steel sheet piles extend into the solid soil layer, and adjacent Larsen steel sheet piles are arranged in a sealed mode; (5) enclosing purlins are arranged on the pile rows, and steel supports are arranged between the enclosing purlins to form an inner supporting structure; (6) water and sludge in the construction area are sucked till the solid soil layer is exposed at the bottom, and the Larsen steel sheet pile cofferdam is formed by the multiple Larsen steel sheet piles and the multiple inner supporting structures; the bottoms of the Larsen steel sheet piles extend to a solid soil layer and are arranged in a sealed mode, and a plurality of inner supporting structures are arranged, so that the water stopping performance of the cofferdam is improved, and meanwhile the stability and the water flow impact resistance are enhanced.

The utility model relates to the technical field of steel sheet pile cofferdams, in particular to a detachable cofferdam module for flood control engineering, which comprises a steel sheet pile structure, connecting buckle structures are fixed on two opposite side surfaces of the steel sheet pile structure, each connecting buckle structure comprises a first inserting buckle and a second inserting buckle, and a hollow area is arranged in a steel sheet pile. And a plurality of triangular support frame structures are fixed in the hollow area. The steel sheet pile solves the problems that two adjacent steel sheet piles in the prior art cannot be installed at a right angle or a smaller angle during installation, the structure is simple, and the steel sheet piles are easy to bend.

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 utility model relates to a pipe-jacking working well structure supported by steel sheet piles, which comprises the steel sheet piles arranged on the peripheral side wall of a pipe-jacking working well in a surrounding manner, a reinforced concrete top beam is arranged at the top of each steel sheet pile, reinforced concrete plate supports are respectively arranged at four corners formed by the reinforced concrete top beams, and a pipe-jacking rear backrest wall body is arranged on the inner side wall of each steel sheet pile. The pipe jacking machine is tightly attached to the pipe jacking rear backrest wall, the driving end of the pipe jacking machine is connected with a to-be-jacked pipeline arranged in the pipe jacking working well, and the pipe jacking machine can jack the to-be-jacked pipeline into the side wall of the pipe jacking working well. The pipe-jacking working well structure supported by the steel sheet piles is high in construction speed and saves engineering cost, the tops of the steel sheet piles are connected through the reinforced concrete top beams, the overall stability of an enclosure structure is improved, the reinforced concrete plate supports are adopted for replacing traditional steel supports, the supports are prevented from falling off, construction safety is guaranteed, and construction efficiency is improved. The steel sheet piles are arranged in a high-low staggered mode, the steel bars are prevented from directly penetrating through the steel sheet piles, and binding operation of the steel bars of the reinforced concrete top beam is facilitated.

The invention discloses a multifunctional multi-anchor plate pile wharf structure suitable for deepwater berth and a construction method thereof, belongs to the technical field of port engineering, and solves the problems that the section of a deepwater berth plate pile wall structure is too large, deformation control is difficult, and the synergism of an anchorage system is poor. The wharf structure comprises a front sheet pile of the front sheet pile wall structure and a front track beam arranged on the front sheet pile. The pull rod system is arranged between a pavement structure and a pool bottom elevation, at least two common layered pull rods and a multifunctional pull rod are sequentially arranged at intervals from bottom to top, one end of each common layered pull rod is connected to a front sheet pile, and one end of each multifunctional pull rod is connected to a front track beam. The anchorage system comprises at least two common layered anchorage bodies and a multifunctional anchorage body, the common layered anchorage bodies are correspondingly connected with the common layered pull rods, the multifunctional anchorage body is composed of a rear track beam and a rear track beam pile, and the rear track beam is connected with the other end of the multifunctional pull rod. The wharf structure is mainly used for deepwater berth wharf construction, multi-anchor support can be provided, and track beam displacement can be coordinated.

The invention discloses a combined type steel sheet pile foundation pit supporting structure, and relates to the field of foundation pit supporting, the combined type steel sheet pile foundation pit supporting structure comprises a steel sheet pile assembly, the steel sheet pile assembly comprises a plurality of first steel sheet pile components and a plurality of second steel sheet pile components, and the first steel sheet pile components and the second steel sheet pile components are alternately spliced; the first steel sheet pile component is formed by two first steel sheet piles in a staggered and sleeved mode, the second steel sheet pile component is formed by two second steel sheet piles in a staggered and sleeved mode, and the first steel sheet piles and the second steel sheet piles which are located at the adjacent positions are also arranged in a staggered and sleeved mode. By adopting the long and short steel sheet pile combined supporting mode, the input number of the steel sheet piles is reduced, meanwhile, the driving difficulty of the steel sheet piles is reduced, the loss and waste of the steel sheet piles are effectively reduced, hole guiding construction is conducted through a drilling machine, and compared with a traditional rotary drilling pile machine hole guiding mode, the needed construction operation area is smaller, and the construction efficiency is improved. The influence of surrounding houses and roads is small, and the method is more suitable for urban construction.

The invention relates to a comprehensive construction method for a Larsen steel sheet pile cofferdam of an anti-typhoon cross-sea bridge. The comprehensive construction method comprises the steps that firstly, BIM and VR application is conducted; 2, construction preparation is conducted; thirdly, a first enclosing purlin is installed, and steel sheet piles are driven in an inserted mode; fourthly, steel enclosing purlins and water stops are installed; 5, bottom sealing concrete is constructed; sixthly, the elevator cage is installed; seventhly, a bearing platform is constructed; eighthly, dismantling construction is conducted; ninthly, the steel sheet piles are recycled; and step 10, intelligent monitoring application. The construction challenges caused by complex landforms at the bottom of the foundation are effectively overcome by adopting targeted construction measures, the resistance to typhoon and storm impact is enhanced, corresponding improvement measures are integrated in all construction processes, and positive effects are achieved.

The invention discloses a well pit water interception and soil retaining parapet wall structure, and relates to the technical field of well pit water interception construction. A well pit water-intercepting and soil-retaining parapet wall structure comprises a plurality of steel sheet piles which are spliced in a meshed mode, each steel sheet pile comprises a bottom plate and side plates connected with the two ends of the bottom plate respectively, meshing buckles are arranged on the side plates, and each meshing buckle comprises a first frame plate, a second frame plate and a filling meshing connecting assembly, and the first frame plate, the second frame plate and the side plates are continuously formed. The meshing buckles between the adjacent steel sheet piles are meshed with each other; the arc surface clinging design is adopted for structures such as the first inner wall arc surface / second inner wall arc surface between the side plate and the first frame plate, the first inner wall arc surface / second inner wall arc surface between the first frame plate and the second frame plate, the outer wall of the first water interception arc part / second water interception semi-arc part, the first inner folded plate arc surface / second inner folded plate arc surface and the like, traditional right-angle splicing is replaced, continuous sealing can be achieved through an arc interface, and gaps easily generated by right-angle splicing are eliminated; and the external expansion arc parts form pre-pressure through mutual extrusion, so that the fitting sealing performance is further improved, and the watertight effect can be realized without depending on an external sealing strip.

The invention belongs to the technical field of structural engineering, and discloses a steel sheet pile outer wall-expanded wing type bolt connection steel frame underground support integrated structure which comprises a permanent steel sheet pile outer wall structure unit and a full-bolt ribbed end plate square steel pipe column-H-shaped steel beam expanded wing type connection frame unit. Based on the structural design concepts of pile-wall integration, one-pile multi-purpose and supporting integration, the permanent full-bolt ribbed end plate square steel pipe column-H-shaped steel beam expanded wing type connecting frame unit serves as a bearing unit of an upper building of the underground space and can also serve as a supporting unit in the foundation pit excavation and use stage. The novel underground structure system and the permanent steel sheet pile outer wall structure unit jointly form a permanent supporting system of the foundation pit; the construction efficiency of the underground structure can be greatly improved, the construction period is shortened and the resource investment is reduced by adopting a construction sequence from top to bottom without a temporary supporting structure and full bolt assembly.

The invention relates to the technical field of steel sheet pile connecting structures, in particular to an anti-seepage steel sheet pile for a silt geological concrete structure foundation pit and a construction technology. Comprising a steel sheet pile body and a connecting assembly, connecting buckles are arranged on the two side edges of the steel sheet pile body, the connecting buckles are opened in the direction away from the steel sheet pile body, the connecting assembly comprises a reinforcing strip, the cross section of the reinforcing strip is oval, and two oval filling cavities are formed in the reinforcing strip; when the steel sheet pile bodies are connected, the connecting buckles of every two adjacent steel sheet pile bodies are oppositely staggered and clamped to form a locking cavity, the locking cavities are used for containing the reinforcing strips, and the long diameter of each reinforcing strip is larger than the minimum diagonal line of the corresponding locking cavity. When the long diameter of the reinforcing strip rotates from the maximum diagonal line to the minimum diagonal line, radial expansion force is generated, the second connecting plates of the two connecting buckles are forcibly dragged to move relatively, the fit clearance is eliminated, mechanical interference sealing is achieved, and efficient sealing connection of the two steel sheet pile bodies is guaranteed.

The utility model provides an auxiliary construction device for a steel sheet pile, and belongs to the field of building construction. According to the technical scheme, the device comprises a connecting steel cylinder, an I-shaped chuck and a steel sheet pile limiting clamping piece, the I-shaped chuck and the steel sheet pile limiting clamping piece are arranged at the two ends of the connecting steel cylinder, a pair of mounting inserting grooves are symmetrically formed in the side walls of the two sides of the top end of the connecting steel cylinder, and the I-shaped chuck is arranged in the pair of mounting inserting grooves through connecting pieces; the connecting sleeve is arranged at the bottom end of the connecting steel cylinder, an annular vertical plate is arranged at the bottom of the connecting sleeve, and a pair of limiting clamping grooves are symmetrically formed in the two sides of the annular vertical plate. The utility model has the benefits that the structure is simple, the use is convenient, the top position of the steel sheet pile is convenient to observe, the elevation of the pile top is effectively and accurately controlled to reach the position required by design, and the construction quality of a sheet pile wall is ensured.

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 utility model relates to the technical field of water conservancy ecological protection, and particularly discloses a combined water conservancy ecological straight plate pile which comprises a pile body, an arc-shaped male groove is formed in one side of the pile body, an arc-shaped female groove matched with the arc-shaped male groove is formed in the other side of the pile body, the arc-shaped male groove is an arc-shaped protrusion, and right-angle sides are reserved on the two sides of the arc-shaped male groove. The arc-shaped female groove is a total-section arc-shaped recess, the maximum protruding width of the arc-shaped male groove is larger than the maximum depth of the arc-shaped female groove, a plurality of water permeable holes are formed in the front end and the rear end of the pile body, and a greening groove is formed in the top of the pile body. The connection mode of the arc-shaped male grooves and the arc-shaped female grooves is adopted, effective connection between piles at different angles can be achieved, continuity of supporting is guaranteed, water and soil exchange can be properly maintained by additionally arranging the permeable holes, benign ecological balance between water and soil is facilitated, plants can be planted in the greening grooves in the tops of the pile bodies, and the greening effect is good. The retaining wall is beautified.

The invention belongs to the field of constructional engineering, and particularly relates to a municipal water-collecting well construction reinforcing device which comprises a formwork assembly, a lock insertion plate, an inner supporting assembly, a center positioning piece and a hexagon nut. The formwork assembly is a cylindrical space defined by a plurality of arc-shaped steel sheet piles in the circumferential direction, T-shaped steel columns with the T-shaped sections are arranged at splicing seams of the adjacent arc-shaped steel sheet piles, the radian of the outer arc faces of the T-shaped steel columns is consistent with that of the outer arc faces of the arc-shaped steel sheet piles, and a smooth and continuous splicing outer wall is formed. The T-shaped steel columns and the two adjacent arc-shaped steel sheet piles are locked in an inserted mode through a plurality of lock insertion plates which are evenly distributed from top to bottom, and circumferential and axial multidirectional fixing is formed. In addition, the lock inserting plates are matched with the U-shaped pieces on the inner walls of the arc-shaped steel sheet piles, the structural strength of formwork splicing is further improved, the formworks are prevented from collapsing inwards due to external force (vibration and the like), it is guaranteed that the inner wall of the water collecting well is smooth, the roundness reaches the standard, later repairing operation is reduced, and the construction cost is reduced.

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 relates to the technical field of rectangular pipe construction, in particular to a construction device for rectifying deviation of a rectangular pipe after the pipe is penetrated, which comprises Larsen steel sheet piles, the Larsen steel piles are arranged on opposite sides of a pipe joint, a dewatering well is arranged outside the two steel sheet piles, a steel enclosing purlin is fixedly connected to one side of the Larsen steel sheet pile close to the pipe joint, steel supports are arranged between the steel enclosing purlins on the same horizontal plane, the two ends of the steel support are respectively connected to the steel enclosing purlins located at the two ends of the steel support, a bracket is welded below the steel enclosing purlin, a concrete limiting block is arranged at a lower chamfered corner of the pipe joint, a concrete cushion beam is arranged on the side of the pipe joint away from the concrete limiting block and close to the upper side, a second steel enclosing purlin is arranged between the concrete cushion beam and the pipe joint, a jack is arranged between the second steel enclosing purlin and the concrete cushion beam, and a steel sheet pad is arranged between the jack and the concrete cushion beam, so that the problem of pipe joint rotation correction after the rectangular pipe construction is completed in an underground pipe joint project is solved.

The invention discloses a parallel septic tank construction method applied to double-layer deep and thick sludge geology, and relates to the technical field of building construction, the method comprises the following steps: S1, construction preparation; s2, supporting construction; s3, foundation reinforcement construction; s4, implanting a core pile: vertically pressing the core pile into the center of the stirring pile before initial setting of the stirring pile; s5, inner supports are installed, specifically, enclosing purlins and steel supports are constructed; s6, layered excavation is conducted, specifically, after the stirring piles reach the design strength, earthwork layered excavation is conducted till the foundation is reached; s7, pouring a support changing plate: pouring a reinforced concrete support changing plate at the bottom of the foundation pit; s8, parallel septic tank foundation construction is conducted, specifically, reinforcing steel bars are bound on the support changing plate, a formwork is erected, and a septic tank foundation is poured; s9, dismantling the inner support: dismantling the enclosing purlin and the steel support after the support plate to be replaced and the parallel septic tank foundation reach the design strength; s10, mounting a septic tank: hoisting the prefabricated septic tank in place; s11, the steel sheet piles are dismantled; and S12, septic tank backfilling construction is conducted. The construction method has the effect of improving the construction quality.

The invention discloses a steel sheet pile double-layer limiting pulley guide control construction method. The method comprises the following steps of data collection and initial parameter setting, real-time monitoring and deviation detection, track deviation operation and calibration parameter generation, calibration parameter application and track correction, correction result verification and parameter updating. According to the steel sheet pile double-layer limiting pulley guiding control construction method, through data collection and initial parameter setting, key data in the steel sheet pile construction process are comprehensively collected, including displacement, inclination angle, traction force, soil reaction force and the like, and corresponding threshold values and standard values are set to form an initial parameter set; a precise data basis is provided for subsequent construction, abnormal conditions in the construction process can be found in time through real-time monitoring and deviation detection, so that construction parameters are always in a controllable range, and required adjustment amount is precisely calculated according to monitoring data in track deviation operation and calibration parameter generation, so that a calibration parameter set is formed.

The utility model relates to the technical field of foundation pit support, in particular to a foundation pit support structure convenient to disassemble and assemble, which comprises a plurality of steel sheet piles sequentially arranged on the inner side of a foundation pit in the circumferential direction of the foundation pit, and further comprises four enclosing purlins sequentially arranged on the inner sides of the steel sheet piles in the circumferential direction of the foundation pit. The eight supporting plates are located on the lower sides of the two ends of the surrounding purlins correspondingly and fixedly welded to the inner sides of the corresponding steel sheet piles; and the four reinforcing rib plates are located between every two adjacent surrounding purlins respectively, and each reinforcing rib plate is detachably connected with the two adjacent surrounding purlins and the two adjacent supporting plates. The supporting plates and the reinforcing rib plates are arranged, each reinforcing rib plate is detachably connected with the two adjacent enclosing purlins, and each reinforcing rib plate is detachably connected with the two adjacent supporting plates, so that the foundation pit support structure is convenient to disassemble and assemble, meanwhile, the structural integrity of the steel sheet piles does not need to be damaged, the bearing capacity of the steel sheet piles is guaranteed, and the using effect is good.

The utility model relates to a dam seepage failure pile planting treatment structure which is used for blocking a seepage channel in a dam, the dam seepage failure pile planting treatment structure comprises a plurality of profile steel piles, a plurality of steel sheet piles, a coarse sand inverted filter layer and a rock ballast backfill body, the profile steel piles are arranged in the dam in the gravity direction, and the coarse sand inverted filter layer is arranged in the rock ballast backfill body. The multiple profile steel piles are arranged at intervals in the length direction of the dam; the steel sheet piles are arranged in the dam in the gravity direction, the steel sheet piles are located on the upstream sides of the profile steel piles and are close to the profile steel piles, the multiple steel sheet piles are sequentially arranged in the length direction of the dam and form a plugging face, and the plugging face can shield the cross section of the permeation channel; the coarse sand inverted filter layer and the rock ballast backfill body are located on the outlet side of the permeation channel and block the outlet of the permeation channel, and the coarse sand inverted filter layer and the rock ballast backfill body are laid in sequence after being locally excavated at the outlet of the permeation channel. The pile planting disposal structure for the dam seepage damage can avoid the shortage of lifting protection and reduce the water damage loss.