23results about How to "Reduce construction procedures" patented technology

The application provides a foundation pit supporting structure of deep silt stratum and a construction method thereof. The foundation pit supporting structure comprises cast-in-situ bored piles arranged in rows and a water stop curtain. The water stop curtain comprises a plurality of rotary jet piles located in the silt layer and the upper stratum thereof and a plurality of swing jet piles located in the lower stratum of the silt layer. The cast-in-situ bored piles are constructed by using rotary drilling machines; adjacent rotary jet piles are overlapped and engaged with each other; adjacent swing jet piles are overlapped and engaged with each other; and adjacent cast-in-situ bored piles are not engaged with each other. The application combines the construction of the water stop curtain and the cast-in-situ bored piles, firstly constructs the rotary jet piles of the water stop curtain, overlaps and engages the rotary jet piles with each other, then constructs the cast-in-situ bored piles by using rotary drilling machines in the rotary jet piles, the diameter of the rotary jet piles is larger than that of the cast-in-situ bored piles, the former serves as the water stop curtain and also serves as the temporary casing during the construction of the latter, one pile has two uses, the construction process is reduced, the engineering cost is lowered, and the application has good popularization value.

The utility model relates to a steel structure fixing structure on a concrete waterproof coiled material, which is characterized in that a steel plate is arranged above a waterproof coiled material layer, an anchor bolt penetrates through a vertical first anchoring hole corresponding to the waterproof coiled material layer and a concrete structural plate, and a waterproof coating layer is arranged between the anchor bolt and the first anchoring hole of the waterproof coiled material layer; the anchor bolt, the waterproof roll layer and the waterproof coating layer jointly form a waterproof closed loop layer, so that water leakage is basically avoided; the bottom face of the steel stand column is welded to the upper portion of the steel plate, the steel plate is fixed to the concrete structural plate of the top plate through the anchor bolts and the nuts, then the basement top plate can be used for supporting the stand column, the stress area is large, and the stress effect is better; the protective layer is arranged to cover the waterproof roll layer, the steel plate, the upper ends of the anchor bolts and the nuts, so that the ground is not interfered; due to the fact that the steel plate anchor bolts and the nuts are constructed along with the basement top plate, independent foundations do not need to be additionally arranged, construction procedures are fewer, and the period is shorter.

The utility model relates to the technical field of rail traffic engineering, in particular to a comprehensive grounding structure of a city railway ballast bed, which comprises a longitudinal grounding steel bar, a transverse grounding steel bar and a comprehensive grounding steel bar mesh, the comprehensive grounding reinforcing mesh is embedded in the bottom of each roadbed slab, and the comprehensive grounding reinforcing meshes at intervals are communicated through grounding reinforcing steel bars every other roadbed slab; a plurality of roadbed slabs are used as a grounding unit at a certain distance, the grounding units are not communicated with one another, the roadbed slabs in one grounding unit are communicated with one another through connecting terminals, and the connecting terminals are connected with weak current side reserved terminals on the roadbed slabs. The utility model has the advantages that the rail structure height of the urban railway shield tunnel is reduced, the concrete consumption is reduced, the construction procedures are reduced, and the comprehensive grounding method is simplified; and the method has good economical efficiency.

The utility model discloses a kind of anchor jaw formula open hole lateral drilling whip-lay, it includes the guide inclined surface of being equipped with guide inclined body, guide inclined body is connected with central rod, the lower part of central rod is sequentially connected with the center tube equipped with anchor jaw retraction mechanism and the guide shoe equipped with ball-throwing press mechanism in proper order;Anchor jaw retraction mechanism is mainly composed of anchor jaw and piston, anchor jaw installed in center tube is connected with connecting pin through connecting rod installed in piston, piston and limit ring are installed in the outer sleeve connected with center tube;Ball seat is provided in ball-throwing press mechanism, and the sealed ball is seated on ball seat. The whip-lay in the utility model greatly improves the vertical anchoring force to open hole well wall. In open hole lateral drilling construction, the construction mode of cement plug as vertical support is avoided, and the whip-lay is directly used for lateral drilling, and the construction efficiency of open hole lateral drilling well and multi-lateral drilling well can be greatly improved.

This application discloses a jacking support construction device and method for rapid replacement of bridge bearings, comprising: a jacking support mechanism, a base, a base plate, and a self-locking mechanism; the jacking support mechanism integrates a hydraulic jacking structure and a mechanical support structure, the hydraulic jacking structure being used to jack the box girder, and the mechanical support structure being used to support the box girder; the hydraulic jacking structure includes a hydraulic cylinder and a piston rod fitted inside the cylinder, the cylinder having inlet and outlet ports for connecting to a hydraulic station via hydraulic oil pipes; the self-locking mechanism consists of a hydraulic self-locking component and a mechanical self-locking component, the hydraulic self-locking component being located within the hydraulic jacking structure to lock the inlet and outlet ports, and the mechanical self-locking component being located within the mechanical support structure to lock the mechanical support structure; the jacking support mechanism is mounted on the base plate via the base, the base plate being fixedly placed on the support platform; the base and the base plate are provided with an adjustment mechanism for adjusting the position of the jacking support mechanism. This device eliminates the need to transport and stack support components, reducing construction steps and improving efficiency.

The present application belongs to the field of building construction technology, and relates to a window sill construction method and a prefabricated part for a reconstruction project, comprising an original wall, a plurality of prefabricated blocks and a mortar leveling layer, the original wall and the plurality of prefabricated blocks are provided with the mortar leveling layer, the prefabricated blocks are fixed by high-strength self-leveling grouting, the original wall passes through the plurality of prefabricated blocks through a reinforcing bar connecting piece, and the original wall and the plurality of prefabricated blocks are provided with a waterproof layer outside. The combination scheme of the prefabricated blocks, the reinforcing bar connecting piece and the self-leveling grouting effectively reduces the process of the overall structure construction, improves the construction efficiency, reduces the material waste on the construction site, avoids the generation of a large amount of building material garbage, effectively saves the construction cost, and improves the effect and long-term reliability of the window sill prefabricated reconstruction project.

The invention discloses mud removing and pile cutting equipment for a waste pile foundation and a construction method of the mud removing and pile cutting equipment. The equipment is composed of a sleeve assembly, a hydraulic pile cutting shearing mechanism and a mud removing reamer assembly. The sleeve assembly comprises a cylindrical inner sleeve; the hydraulic pile cutting and shearing mechanism comprises hydraulic shearing equipment, the bottom of the hydraulic shearing equipment is rotationally connected with a dredging reamer assembly through a rotary support, the dredging reamer assembly comprises a hollow supporting barrel, a spiral reamer is arranged on the outer wall of the dredging reamer assembly, and a plurality of third overflowing holes are formed in the reamer face at intervals. A plurality of form relieved teeth are arranged on the end face of the tail end of the lower side of the spiral reamer, and a serrated knife with a plurality of form relieved teeth is arranged on the outer wall, opposite to the spiral reamer, of the supporting cylinder; according to the equipment and the construction method, the old pile foundation can be cut to the designed elevation position at a time, the cut-off pile and the equipment are integrally hoisted and transferred, the construction procedures are reduced, the equipment loss is reduced, meanwhile, the operation efficiency is improved, and the equipment and the construction method can be widely applied to reconstruction, extension and upgrading reconstruction of old wharfs and land waste structures.

The application discloses a mechanical hole-forming method of a horizontal cantilever rectangular anti-slide pile with an added shoulder, and comprises the following steps: sequentially arranging a slag body processing mechanism, a vertical hydraulic assembly and a multifunctional drilling assembly on a drilling machine from top to bottom; controlling a cylindrical drilling assembly in the multifunctional drilling assembly on a horizontal plane to drill and dig a stratum downwards to a top design elevation of the added shoulder hole; controlling a vertical hydraulic cylinder to drive the multifunctional drilling assembly to continue drilling and digging the stratum downwards to a design depth of the horizontal cantilever pile hole; the piston rod of the horizontal hydraulic cylinder is elongated to drive the multifunctional drilling assembly to move laterally, and the piston rod of the vertical hydraulic cylinder is elongated to drive the multifunctional drilling assembly to move downwards to drill and dig the stratum to form the added shoulder hole; controlling the horizontal hydraulic cylinder to drive a cylindrical drilling assembly on a vertical plane in the multifunctional drilling assembly to drill and dig the horizontal cantilever pile hole outwardly; and continuing to control the cylindrical drilling assembly on the horizontal plane in the multifunctional drilling assembly to drill and dig the stratum downwards to a design depth of the rectangular pile hole.

The utility model discloses a concrete structure embedded casing pipe fixing device which comprises a formwork and a positioning pipe capable of coaxially extending into a casing pipe, the end portion of the positioning pipe is connected with a positioning plate located outside the casing pipe, the positioning plate is detachably connected with the formwork, and a sealing piece is arranged between the positioning pipe and the casing pipe. The device can be recycled, is simple and convenient to operate, can ensure safety in all aspects during installation, greatly reduces the construction cost, and saves manpower and material resources. Construction procedures are reduced, working efficiency is improved, labor intensity is reduced, and economy and environmental protection are achieved.

This invention discloses a construction method for deep and large foundation pits without the need for replacement supports, belonging to the field of underground structure sequential construction technology. During the main structure construction, after the previous formwork sidewall is completed, only the next steel support is removed; replacement supports are no longer installed, thus eliminating the need for replacement supports. Only the concrete supports are cut, retaining the lintel beams, which function as part of the sidewall, allowing them to play a role in both the excavation and main structure construction phases. The bottom slab ribs are adjusted from triangular bevels to stepped shapes, allowing the scaffold uprights to act vertically on the ribs, ensuring the overall stability of the scaffold. The increased rib cross-sectional dimensions reduce the impact of lateral deformation of the foundation pit on the sidewalls. This invention shortens the construction process, reduces construction costs, ensures foundation pit safety, and has good economic benefits.

The present application relates to the technical field of building construction, in particular to a medical spliced antibacterial medical board construction method, comprising the following steps: A, wall surface quality acceptance; B, line marking; C, drilling and inserting screw sleeve; D, installing keel; E, installing fastener; F, installing antibacterial medical board; G, sealing glue; The construction method has the advantages of simple construction process, less construction procedure, high quality reliability and the like; The construction speed can be greatly improved by using the construction method, and the construction period is shortened; Further, the antibacterial medical board adopts a "dry hanging" fixing mode, which ensures the safety of the system; Compared with the phenolic resin board construction, the fireproof grade, wear resistance, formaldehyde content, moisture resistance, stain resistance, scratch resistance and other performances are significantly improved, so that the construction process is more environmentally friendly and safe.

This invention relates to the field of building construction technology, and in particular to a formwork fastening clamp for a zigzag precast concrete roof truss and a construction method based thereon. The formwork fastening clamp includes a first insert, a second insert, a bottom crossbar, and a locking device. The bottom crossbar is connected to the first and second inserts via a socket joint and is locked in place by the locking device. This invention solves the problems existing in the prior art and provides an integrated solution for formwork fastening, sleeper support, hoisting gap reservation, and prevention of concrete adhesion. After the precast beam is demolded, the bottom crossbar can be directly left below the beam to act as a sleeper, and the upper beam can still be directly precast on top of the lower beam. During hoisting, there is a rope gap between the two beams, which effectively avoids concrete adhesion between the upper and lower beams, improving the forming quality and construction efficiency of the zigzag precast concrete roof truss.

This invention discloses a mechanical drilling method for rectangular anti-slide piles with horizontal cantilever construction, comprising: combining multiple drilling rigs to form a rectangular structure corresponding to the size of the rectangular pile hole; controlling the vertical drilling devices on all drilling rigs to drill downwards into the strata until the designed depth of the horizontal cantilever pile hole; controlling the horizontal hydraulic cylinder on the drilling rig located near the excavation section of the horizontal cantilever pile hole to drive the cylindrical drill assembly on the horizontal drilling device to drill outwards into the horizontal cantilever pile hole; simultaneously controlling the vertical drilling devices on all drilling rigs to continue drilling downwards into the strata; causing the piston rod of the horizontal hydraulic cylinder on the drilling rig located near the excavation section of the horizontal cantilever pile hole to retract to its minimum stroke and stop working, and continuing to control the vertical drilling devices on all drilling rigs to continue drilling downwards into the strata until the designed depth of the rectangular pile hole. The advantage of this invention is that, according to different sizes of rectangular pile holes, a corresponding number of drilling rigs are set on the rectangular anti-slide pile drilling rig to form a rectangular structure for drilling rectangular pile holes.

The utility model relates to the technical field of building construction, and concretely discloses a protective window rail suitable for construction temporary protection, which comprises a permanent protective window rail, the permanent protective window rail comprises a permanent protective window horizontal pole and a permanent protective window vertical pole, and a temporary protection frame is detachably installed on the permanent protective window rail, the temporary protection frame comprises a horizontal telescopic rod arranged between the permanent protective window horizontal pole and a floor slab, the temporary protection frame can fill the gap between the permanent protective window vertical pole and the floor slab, thereby achieving the purpose of temporary protection, and the temporary protection frame is arranged on the inner side of the protective window rail to play a construction protection function, which can avoid the direct collision of construction appliances or construction personnel on the permanent protective window rail, thereby forming protection for the permanent protective window rail, after the completion of construction, the horizontal telescopic rod is retracted, and then the temporary protection frame is dismounted and installed on the next construction part, so that the protective window rail can be repeatedly used.

The utility model discloses a prefabricated composite floor in the technical field of fabricated building, which aims to solve the problem of additional support needed during the assembly and pouring of the prefabricated composite floor in the prior art. It comprises: prestressed clamps are installed on both sides of the semi-finished product of the prefabricated composite floor along the extension direction of the longitudinal reinforcement of the composite board, the prestressed strands are tensioned between the two prestressed clamps, and then the composite board body is poured to obtain the finished product prefabricated composite floor. Under the tensioning force of the tensioned prestressed strands, the prefabricated composite floor arches, after the prefabricated composite floor is initially assembled with the shear wall, when the prefabricated composite floor is poured for the second time, the arching stress caused by the tensioned prestressed strands can offset or slow down the gravitational force of the concrete, thereby the support structure below the prefabricated composite floor for supporting the un-solidified concrete can be reduced or completely removed, achieving the effects of reducing construction cost, shortening construction process, and releasing the lower space.

The application discloses a kind of existing masonry wall assembly type reinforcing device, it is characterized by: including the high-performance fiber reinforced cement-based prefabricated plate (100) of surface with screw (10), the cannon nail (20) of existing masonry wall (200) surface, and the self-compacting grouting layer (300) filled between high-performance fiber reinforced cement-based prefabricated plate (100) and existing masonry wall (200);The outer surface (A) of the high-performance fiber reinforced cement-based prefabricated plate (100) is flat, the screw (10) with arrayed arrangement is arranged in inner surface (B), and the nail tip (1) of screw (10) is embedded in high-performance fiber reinforced cement-based prefabricated plate (100), and nail cap end (2) is extended in inner surface (B);The screw (10) and cannon nail (20) form dislocation lap joint in self-compacting grouting layer (300), and lap joint length (E) is 10~20mm.Compared with prior art, the existing masonry wall assembly type reinforcing device of the application has good compression resistance and seismic performance, little wet operation amount in field, little influence on normal use of building, good flatness of reinforcing layer surface and other characteristics, and the wall surface after reinforcement can meet the requirements of plaster-free.The application has good application prospect in existing masonry structure reinforcement.

The utility model relates to the technical field of road construction, and discloses a cement-stabilized layer construction formwork. The cement-stabilized layer construction formwork comprises a formwork body, a fixing pulling plate, a first fixing rod and a second fixing rod. The bottom of the template body is provided with a clamping groove and a template surface; one end part of the fixed pulling plate is detachably connected with the clamping groove, and the other end part of the fixed pulling plate extends towards the template surface to one side of the template body; the first fixing rod is arranged on one side of the formwork face, the bottom of the first fixing rod is in threaded connection with the fixing pulling plate, and the bottom end of the first fixing rod protrudes out of the bottom side wall of the fixing pulling plate. The bottom end of the second fixing rod is in threaded connection with the top end of the first fixing rod. In the invention, under the condition that the height of the road is higher than the paved ground, a bracket does not need to be additionally erected, so that the construction procedures are reduced, and the construction difficulty is reduced.

The present application relates to the technical field of fracturing aids, and is a temperature-controlled self-polymerization sand consolidation proppant and a preparation method thereof.The raw materials of the temperature-controlled self-polymerization sand consolidation proppant include a proppant, a surface modifier, a temperature-sensitive material, an initiator and an organic solvent.The surface modifier is composed of a silane coupling agent and an accelerator, and the temperature-sensitive material is composed of temperature-sensitive material A and temperature-sensitive material B.The temperature-controlled self-polymerization sand consolidation proppant has good compression resistance, flow conductivity and anti-flowback capability.The proppant is modified, and the modified proppant is grafted with the temperature-sensitive material, so that the temperature-controlled self-polymerization sand consolidation proppant changes in molecular conformation at the reservoir temperature after entering the fracture, and the surfaces of the temperature-controlled self-polymerization sand consolidation proppant are bonded together through chemical bonding and physical entanglement in a dual mode, thereby consolidating the sand while maintaining high flow conductivity.

This utility model discloses a polygonal irregular column formwork clamp for building engineering, relating to the field of building engineering technology. It comprises multi-layered horizontally arranged irregular column hoops, each layer consisting of multiple sections of channel steel connected end-to-end; stiffening plates one and two, positioned on the inner side of the channel steel according to the angle of the column corner; thick ear plates, located at the ends of the channel steel, with adjacent ear plates connected by high-strength bolts; and vertical fasteners used to fix adjacent multi-layered irregular column hoops. In this utility model, the channel steel column hoops, stiffening plates, ear plates, and double bolt connection structure form a rigid and stable reinforcement system that effectively resists lateral pressure from concrete, prevents formwork bulging and displacement, and ensures the quality of concrete molding. The C-shaped clamps and vertical fasteners connect the horizontal column hoops of each layer into a unified "reinforcement cage," enhancing the system's rigidity and integrity in three-dimensional space, making it particularly suitable for the construction of tall irregular columns.

The application discloses a mechanical hole-forming method of a rectangular pile with a reaming asynchronous type drilling and digging with a haunch horizontal cantilever, which comprises the following steps: combining multiple drilling machines to form a rectangular structure corresponding to the size of a rectangular pile hole; sequentially arranging a slag body processing mechanism, a haunch drilling assembly, a horizontal drilling assembly and a vertical drilling device on each drilling machine from top to bottom; controlling the vertical drilling devices on all the drilling machines to vertically drill and dig the stratum downward until the design depth of the horizontal cantilever; starting the haunch drilling assembly on the drilling machine arranged near the haunch hole and the horizontal cantilever pile hole digging part; controlling the horizontal hydraulic cylinder to drive the horizontal drilling device to move outward and horizontally drill and dig the stratum to the design length; and continuously controlling the vertical drilling devices on all the drilling machines to vertically drill and dig the stratum downward until the design depth of the rectangular pile hole to form an embedded section of the rectangular pile hole. The method has the advantages that according to different sizes of the rectangular pile hole, corresponding numbers of drilling machines are arranged on the rectangular anti-slide pile drilling machine to form a rectangular structure, so that the rectangular pile hole can be drilled and dug.

The invention discloses automatic laying and wiring equipment for communication cables, and belongs to the technical field of communication equipment.The automatic laying and wiring equipment comprises a sawtooth plate and a laying roller, the laying roller is installed on the side wall of the sawtooth plate through an installation frame, two symmetrical protection plates with sliding grooves are arranged on the two sides of the laying roller, and the laying roller is in sliding connection with the protection plates; a communication cable is wound on the arc-shaped inner wall of the laying roller, a guide sleeve is fixedly connected to the side wall of the bottom of the sawtooth plate, and an adjusting cable laying assembly, a cleaning assembly and a soil laying assembly are assembled in the guide sleeve. The soil covering wheel and the soil beating plate enable soil gathered by the soil gathering plate to cover a cable, integration of laying, soil covering and compaction is achieved, the equipment improves laying efficiency and quality, cable protection is enhanced, the requirements of modern communication engineering are met, and the equipment aims at solving the problems that existing equipment is single in tension adjustment and has no cleaning and soil covering functions.

The application provides a flexible energy pile construction equipment based on cement soil mixing pile and belongs to the technical field of ground source heat pumps, which comprises a drill rod and a drill bit, the drill bit is hingedly connected to the bottom end of the drill rod on the right side, and the drill bit is detachably connected to the bottom end of the drill rod on the left side; the drill rod is hollow, a sleeve pipe is slidably connected in the drill rod, an inner rod is slidably connected in the sleeve pipe, and a sleeve pipe arm is hingedly connected to the bottom of the sleeve pipe; a limiting groove matched with a heat exchange pipe is arranged on the side wall of the sleeve pipe, and a roller is rotatably connected to the end of the sleeve pipe arm; a connecting rod is connected between the sleeve pipe and the sleeve pipe arm, the connecting rod is hingedly connected with a lifting rod, and the lifting rod is sleeved in the drill rod; the drill rod and the sleeve pipe are provided with matched limiting devices to prevent the sleeve pipe from rotating in the drill rod; the equipment arranges the heat exchange pipe while mixing the cement soil, has high manufacturing efficiency, does not need to provide additional support for the heat exchange pipe, can improve the construction efficiency, and can save the cost.

This utility model discloses a reusable grain silo wall reinforcement spacing control device, belonging to the field of grain silo technology. It includes a positioning circumferential pipe, a connecting rod, a sliding pipe clamp assembly, and a fixed bracket. The positioning circumferential pipe is divided into an inner ring and an outer ring, arranged circumferentially along the silo wall. In this utility model, one end of the sliding pipe clamp assembly engages with the positioning circumferential pipe, and the other end clamps the vertical reinforcement. The installation angle is adjustable to adapt to different reinforcement arrangements. The fixed bracket is installed on the slipform template, and its top is equipped with a "U"-shaped support ring. During the slipform's ascent, it supports the entire positioning system and raises synchronously. This device has a simple structure, is easy to install, and highly reusable. It not only eliminates the traditional construction procedures of cement blocks and welded frames, improving construction efficiency and the accuracy of vertical reinforcement positioning, but also avoids the problem of template scraping the reinforcement, improves the appearance quality of the concrete surface, and ensures the overall airtightness of the silo structure.