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CN-122013792-A - Combined rectangular pile hole retaining wall and construction method thereof

CN122013792ACN 122013792 ACN122013792 ACN 122013792ACN-122013792-A

Abstract

The invention discloses a combined rectangular pile hole retaining wall and a construction method thereof, which belong to the technical field of pile hole construction and comprise a plurality of rectangular shell-shaped standard sections and a cutting edge assembly, wherein the cutting edge assembly comprises a section of standard section and cutting edges coaxially fixed at the bottom ends of the standard section, the standard section comprises an upper bell-spigot and a lower spigot which are respectively positioned at four corners of the upper end and the lower end, the standard section also comprises an inner wall plate and an outer wall plate which are spaced from each other and are parallel, the two wall plates are fixed into a whole through a framework, a plurality of hooks are respectively arranged in the lower spigot through torsion springs in an elastic rotation mode, a plurality of bolts with the same number as the hooks are arranged in the upper bell-spigot, and when the two adjacent standard sections are separated from each other, the hooks can hook the bolts so as to realize synchronous upward movement of the two standard sections together. The invention can carry out continuous operation during pile hole excavation construction, and the retaining wall can be fully recovered, assembled in a modularized manner, and has strong adaptability.

Inventors

  • WANG YUANFEI
  • CHEN YUHANG
  • ZHOU CHENGLIN
  • ZHAN BIN

Assignees

  • 重庆荣策智展工程咨询有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (10)

  1. 1. The combined rectangular pile hole guard wall is characterized by comprising a plurality of standard sections which are both rectangular shell-shaped and a cutting edge combination body, wherein the cutting edge combination body comprises a section of standard section and a rectangular cutting edge (11) coaxially fixed at the bottom end of the standard section; The standard section comprises an upper bell-spigot opening (1) and a lower plug-in part (2) which are respectively positioned at four corners of the upper end and the lower end, the standard section also comprises inner and outer layers of parallel wall boards which are spaced from each other, the two wall boards are fixed into a whole through a framework (8), a plurality of hooks (3) are respectively arranged in the lower plug-in part (2) in an elastic rotation mode through torsion springs (13), a plurality of bolts (4) which are consistent with the hooks (3) in number are arranged in the upper bell-spigot opening (1), the bolts (4) are fixed between the two layers of wall boards along the direction perpendicular to the wall boards, in the process that two adjacent standard sections are butted together, the hooks (3) are in pressing contact with the cylindrical surfaces of the bolts (4) to swing towards one side, so that the hooks (3) are not blocked by the bolts (4) in the downward moving process, and when the two standard sections which are butted are separated from each other, the hooks (3) can hook the bolts (4) to realize the synchronous upward moving of the two standard sections.
  2. 2. The combined rectangular pile hole protecting wall according to claim 1, wherein each layer of wall plate is formed by encircling a plurality of locking plates (23) with rectangular plate-shaped structures and right-angle-shaped corner plates in sequence and is detachably fixed with the framework (8) into a whole; The framework (8) comprises a rectangular grid frame, vertical moment pipes (9) and hollow longitudinal beams (10) with L-shaped cross sections, wherein the grid frame is positioned at the center of two layers of wall boards, a plurality of vertical moment pipes (9) are respectively arranged at two sides of the grid frame, the vertical moment pipes (9) are connected with the longitudinal beams (10) positioned at four corners so as to form a rectangular frame structure, and the locking plates (23) are fixedly connected with the vertical moment pipes (9) through fixing pins (5).
  3. 3. A modular rectangular pile hole retaining wall according to claim 1, characterised in that said pins (4) are provided in each of said upper sockets (1) in a respective pair, each pair of pins (4) being arranged perpendicular to each other between the corresponding panels.
  4. 4. The combined rectangular pile hole retaining wall according to claim 1, wherein three vertical rectangular tubes are respectively and internally fixed at four corners of the two wall plates to form a longitudinal beam (10), the three rectangular tubes in the longitudinal beam (10) are integrally formed in a delta shape, and the upper bell and spigot (1) and the lower plug-in part (2) are respectively positioned at the upper end and the lower end of the longitudinal beam (10); the two ends of a hinge shaft (12) of the hook (3) are rotatably arranged in rectangular structure holes (1001) on two sides of a right-angle area of the longitudinal beam (10), the hinge shaft (12) is coaxially sleeved with a torsion spring (13), one end of the torsion spring (13) is connected with the inner side wall of the rectangular structure hole (1001), the other end of the torsion spring is connected with the side face of the hook (3) fixed on the hinge shaft (12), the bottom end of the hook (3) is of an upwards bent hook-shaped structure (311), the top end of the hook is of a vertical hook handle (312), the top end of the hook handle (312) is perpendicularly and penetratingly fixed with the hinge shaft (12), and the torsion spring (13) enables the hook handle (312) to be vertically arranged.
  5. 5. The combined rectangular pile hole guard wall according to claim 1, wherein three vertical rectangular pipes are respectively and internally fixed at four corners of the two wall plates to form a longitudinal beam (10), and the three rectangular pipes in the longitudinal beam (10) are integrally formed in a delta shape; The hanger (3) comprises a hanging rod portion (16) which is fixed in a rectangular structure hole (1001) with the middle portion recessed downwards to form a circular arc-shaped groove (1601), and a bearing shaft (14) which is fixed in a rectangular structure hole (1001) on two sides of a right-angle area of the longitudinal beam (10), the circular arc-shaped groove (1601) of the hanging rod portion (16) is used for hooking the bolt (4) in a standard section matched with the hanging rod portion, the bearing shaft (14) and the corresponding bolt (4) are arranged vertically and mutually perpendicular, one end of the bearing shaft (14) is fixed with a hanging frame (15) which is in an II shape, the other end of the bearing shaft can be lapped on a bearing block (17) which is fixed on the wall of the rectangular structure hole (1001), one end of the hanging rod portion (16) is rotatably installed at the center of the bottom of the hanging frame (15), and the front side and the rear sides of the end of the hanging rod portion (16) are respectively provided with a torsion spring (13) which is sleeved on the hanging frame (15), so that a non-bending section of the hanging rod portion (16) under a normal state can be parallel to the bearing shaft (14).
  6. 6. A rectangular pile hole dado construction method, which is characterized in that the combined rectangular pile hole dado as claimed in any one of claims 1-5 is adopted for construction, and the concrete operation is as follows: S1, after the position of a rectangular pile hole is determined, four corners of the blade foot assembly are vertically pressed into a soil layer by using a wall protection assembly and disassembly integrated machine in alignment with the four corners of the rectangular pile hole, after a set depth is excavated in an inner side area of the blade foot assembly, the standard section is lifted by the wall protection assembly and disassembly integrated machine, and a lower plug-in part (2) is inserted into a corresponding upper faucet (1) to realize vertical serial connection and splicing of two adjacent standard sections, so that the standard section and the blade foot assembly are connected into a rectangular integral wall protection arranged on the ground; S2, continuing to excavate soil in the rectangular pile hole area downwards in the standard section, synchronously pressing the soil into the subsequent standard sections downwards one by one along with the downwards excavation of the rectangular pile hole soil, and assembling and splicing; S3, after the rectangular pile hole is dug, pouring concrete towards the pile hole, and simultaneously, adopting the retaining wall assembly and disassembly integrated machine to pull out the corresponding standard section upwards along with pouring concrete downwards, and pulling out the bolt (4) after the soil layer is pulled out of the joint of the two connected standard sections, so that the previous standard section can be taken down, and then the subsequent standard section is pulled out continuously until all retaining walls are pulled out.
  7. 7. The construction method of the rectangular pile hole guard wall according to claim 6, wherein the guard wall assembling and disassembling integrated machine is used for pulling out the standard section to be pulled out only when concrete is fully poured or already partially poured into the standard section to be pulled out in the process of pulling out the standard section.
  8. 8. The construction method of the rectangular pile hole retaining wall according to claim 6, wherein the retaining wall assembling and disassembling integrated machine comprises a smooth-surface bottom plate (18) for standing standard sections, and the bottom plate (18) is horizontally placed on the ground; The automatic pile driver is characterized by further comprising a driving bin (19) which is positioned above the bottom plate (18) and connected with the mechanical large arm, wherein the driving bin (19) is internally provided with a cross-shaped hollow worm wheel (20) and a hollow worm (21) which are arranged up and down and meshed with each other, two studs (24) with opposite rotation directions are coaxially and oppositely arranged in the hollow worm wheel (20) and the hollow worm (21), the free end of each stud (24) is fixedly provided with an L-shaped buckle plate (23), and the two inner side walls of the buckle plates (23) can be respectively stuck to the inner side wall and the top end surface of the standard section, so that when the worm wheel and the worm are in transmission, all the buckle plates (23) are in contact and are stuck to corresponding parts of the corresponding standard section, the standard section is clamped and positioned, and the mechanical large arm rotates by a set angle, and then the standard section is placed right above the rectangular pile hole.
  9. 9. The construction method of rectangular pile hole dado according to claim 8, wherein the top end of the buckle plate (23) is fixed with an L-shaped bent beam (25), the bent beam (25) and the stud (24) are coaxially butted through a first connecting ring (26) and a second connecting ring (27) which are coaxially fixed respectively, An annular guide groove (2601) is coaxially arranged on the butt end surface of the first connecting ring (26), a plurality of screw holes are annularly arranged on the butt end surface of the second connecting ring (27), a bolt-shaped bolt (28) is slidably arranged in the annular guide groove (2601), a locking sleeve (29) is arranged after the threaded end of the bolt (28) penetrates out of the screw hole, and the bolt cap end of the locking sleeve is slidably arranged in the annular guide groove (2601); The locking sleeve (29) is screwed in an amount which enables the two buckling plates (23) which are opposite to each other to form an integrated structure when the two buckling plates (23) are not fully contacted with the corresponding parts of the standard section, and the two connecting rings rotate relatively when the two buckling plates (23) which are opposite to each other are fully contacted with the corresponding parts of the standard section.
  10. 10. The rectangular pile hole retaining wall construction method according to claim 9, characterized in that the locking sleeve (29) is a cylindrical gear, the gear hole is a threaded hole in threaded fit with the stud (28), an adjusting ring sleeve (32) is coaxially and rotatably arranged on the outer sides of the two connecting rings, the adjusting ring sleeve (32) and the two connecting rings cannot move axially, one port inner wall of the adjusting ring sleeve (32) is an inner gear (3201) meshed with all the cylindrical gears, so that all the locking sleeve (29) can be synchronously screwed when the adjusting ring sleeve (32) is rotated, a compressed elastic gasket (33) is clamped between the adjusting ring sleeve (32) and the end face of one connecting ring, so that the adjusting ring sleeve (32) has pretightening force relative to the connecting ring, and the other end of the adjusting ring sleeve (32) is axially compressed and fixed by a compression ring (34) screwed into the end face of the other connecting ring in a threaded fit manner.

Description

Combined rectangular pile hole retaining wall and construction method thereof Technical Field The invention relates to the technical field of pile hole construction, in particular to a combined rectangular pile hole retaining wall and a construction method thereof. Background When square pile hole construction is carried out in a stratum with unstable geological conditions, abnormal conditions such as hole collapse, diameter shrinkage, deformation and the like often occur, the pile hole forming is seriously influenced, and the cast-in-situ reinforced concrete retaining wall is mainly adopted for supporting at present, and the reverse construction method is adopted for excavation-assisted construction. The existing construction mode is that the reinforced concrete is permanently put into the construction mode and cannot be recycled, after the construction mode is adopted, the reinforced concrete needs to wait until the design strength is achieved, the pile hole can be continuously constructed downwards, the shutdown frequency is high, the construction progress is slow, the retaining wall formed by the cast-in-situ concrete support cannot be recycled, and the construction cost and the construction efficiency are not ideal. Therefore, the pile hole wall protection is implemented according to the existing construction mode, and the problems of resource waste, construction period pause and the like are obvious. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a combined rectangular pile hole retaining wall and a construction method thereof, which are used for solving the problems of resource waste, low construction efficiency and easiness in delaying a construction period existing in the current rectangular pile hole construction operation process. (II) technical scheme In order to achieve the above purpose, the present invention provides the following technical solutions: A combined rectangular pile hole dado comprises a plurality of rectangular shell-shaped standard sections and a cutting edge assembly, wherein the cutting edge assembly comprises a section of standard section and a rectangular cutting edge coaxially fixed at the bottom end of the standard section, the standard section comprises an upper bell-spigot and a lower plug-in part which are respectively positioned at four corners of the upper end and the lower end, the standard section further comprises inner and outer layers of parallel wall plates which are spaced from each other, the two wall plates are fixed into a whole through a framework, a plurality of hooks are respectively arranged in the lower plug-in part in an elastic rotation mode through torsion springs, a plurality of bolts with the same number as the hooks are arranged in the upper bell-spigot, the bolts are fixed between the two layers of wall plates along the direction perpendicular to the wall plates, in the process that two adjacent standard sections are butted together, the hooks are in pressing contact with cylindrical surfaces of the bolts to swing towards one side so that the hooks can not be blocked by the bolts in the downward moving process, and when the two butted standard sections are separated from each other, the hooks can hook the bolts so as to realize the synchronous upward moving of the two standard sections. Further, each layer of wall plate is formed by encircling a plurality of locking plates with rectangular plate-shaped structures and right-angle-shaped corner plates in sequence, and the locking plates and the framework are detachably fixed into a whole; The framework comprises a rectangular grid frame, vertical rectangular pipes and hollow longitudinal beams with L-shaped cross sections, wherein the grid frame is positioned at the center of two layers of wall plates, a plurality of vertical rectangular pipes are respectively arranged at two sides of the grid frame and are connected with the longitudinal beams positioned at four corners so as to form a rectangular frame structure, and the locking plates and the vertical rectangular pipes are fixedly connected together through fixing pins. Further, a pair of pins is provided in each of the upper sockets, each pair of pins being disposed perpendicularly to each other between the corresponding two panels. Further, three vertical rectangular pipes are respectively and fixedly embedded at four corners of the two wall plates to form a longitudinal beam, the three rectangular pipes in the longitudinal beam are integrally formed in a delta shape, and the upper bell-spigot joint and the lower plug-in joint are respectively positioned at the upper end and the lower end of the longitudinal beam; The two ends of the hinge shaft of the hook are rotatably arranged in rectangular structure holes on two sides of the right-angle area of the longitudinal beam, the hinge shaft is coaxially sleeved with the torsion spring, one end of the torsion spring is c