CN112554207A - Foundation pit supporting pile top crown beam structure and construction method thereof - Google Patents

Foundation pit supporting pile top crown beam structure and construction method thereof Download PDF

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Publication number
CN112554207A
CN112554207A CN202011584691.6A CN202011584691A CN112554207A CN 112554207 A CN112554207 A CN 112554207A CN 202011584691 A CN202011584691 A CN 202011584691A CN 112554207 A CN112554207 A CN 112554207A
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China
Prior art keywords
fixing rod
frame body
rod
foundation pit
wall
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CN202011584691.6A
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Chinese (zh)
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闫慧
谢岩
李晓龙
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Jingxing International Engineering Management Co ltd
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Jingxing International Engineering Management Co ltd
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Priority to CN202011584691.6A priority Critical patent/CN112554207A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a foundation pit supporting pile top crown beam structure and a construction method thereof, and relates to the technical field of foundation pit supporting pile top crown beam structures. For the convenience of construction, the crown beam structure specifically includes first support body and second support body, all is provided with the crossbeam that the equidistance distributes on first support body and the second support body, and evenly distributed's assembly jack has all been seted up to first support body and second support body bottom outer wall, has pegged graft respectively in the assembly jack and has first dead lever and second dead lever, and the even crossbeam in position of second dead lever corresponds. By arranging the first frame body, the second frame body and other structures, the first frame body and the second frame body can be used as a main frame for supporting during installation, the structural firmness is guaranteed, the time for erecting a large number of reinforcing steel bars is saved, and the construction period is effectively shortened; through setting up connecting rod and connecting sleeve isotructure, the user can highly carry out the dismouting according to the demand to realize that the multilayer erects, promoted the flexibility.

Description

Foundation pit supporting pile top crown beam structure and construction method thereof
Technical Field
The invention relates to the technical field of foundation pit supporting pile top beam structures, in particular to a foundation pit supporting pile top beam structure and a construction method thereof.
Background
The top beam of the supporting pile of the foundation pit is a continuous beam arranged at the top of the supporting structure at the periphery of the foundation pit; the foundation pit supporting pile top beam has the advantages that all pile foundations are connected together, collapse of the top edge of the foundation pit is prevented, at present, a common foundation pit supporting pile top beam is mainly cast-in-place operation, certain use requirements can be met, working procedures are long in occupied time, construction cost is high, and a large amount of manpower and material resources are wasted.
Through retrieval, the patent with the Chinese patent application number of CN201822122869.X discloses a hat-shaped combined steel sheet pile top crown beam structure for foundation pit supporting. The hat-shaped combined steel sheet pile top crown beam structure is a reinforced concrete structure arranged at the tops of a plurality of hat-shaped combined steel sheet piles, and the upper part of H-shaped steel of each hat-shaped combined steel sheet pile is anchored into the crown beam; the longitudinal stress main reinforcements of the steel reinforcement structure of the crown beam are arranged at the edges of the crown beam close to the inner side and the outer side of the foundation pit, the waist reinforcements are arranged along the edges of the H-shaped steel, and the tie reinforcements are vertically distributed between two adjacent hat-shaped combined steel sheet piles; the hooping arranged between two adjacent hat-shaped combined steel sheet piles binds and fixes the longitudinal stressed main rib, the waist rib and the tie bar at the position, and the hoops arranged in the area where each hat-shaped combined steel sheet pile is anchored into the crown beam bind and fix the main rib and the waist rib arranged on the inner side and the outer side of the H-shaped steel respectively. The crown beam structure in the above patent has the following disadvantages: during construction, although certain use requirements can be met, the process takes long time and the construction cost is high, and a large amount of manpower and material resources are wasted.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a foundation pit supporting pile top crown beam structure and a construction method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a top crown beam structure of a foundation pit supporting pile comprises a first frame body and a second frame body, wherein cross beams are arranged on the first frame body and the second frame body at equal intervals, assembly inserting holes are uniformly formed in the outer walls of the bottoms of the first frame body and the second frame body, a first fixing rod and a second fixing rod are respectively inserted into the assembly inserting holes, the positions of the second fixing rods are uniformly corresponding to the cross beams, tail rods are uniformly arranged at the bottoms of the first fixing rod and the second fixing rod, bearing threads are arranged between the tail rods and the first fixing rod and between the tail rods and the second fixing rod, the diameter of each tail rod is smaller than the size of each bearing thread, a bearing nut is arranged on the outer wall of each bearing thread, an annular gasket is arranged at the top of each bearing nut, and the diameter of; the top parts of the first fixing rod and the second fixing rod are integrally provided with first threaded heads, fixing nuts are arranged on the outer walls of the first threaded heads, the outer wall of the top part of the cross beam is detachably provided with a connecting rod through a connecting rod seat, and the outer wall of the bottom part of the cross beam is detachably provided with a connecting sleeve matched with the connecting rod through a sleeve seat; the connecting sleeve on the first frame body is sleeved on the outer wall of the top of the upper connecting rod of the second frame body.
Preferably: the outside cover of second dead lever has the piece of cup jointing, and the welding of the piece one end of cup jointing has the rotation seat, rotates the inside horizontal gusset rod that is connected with through spacing protruding rotation of seat, and horizontal gusset rod one end integral type is provided with the connecting block, and connecting block one end integral type is provided with second thread head, and the through-hole that supplies second thread head to pass is seted up to connecting sleeve both sides outer wall, and the assembly screw with the adaptation of second thread head is seted up to connecting rod both sides outer wall.
Further: the outer wall of one side of the second fixed rod is provided with a clamping groove matched with the shape of the socket joint piece.
Further preferred is: the cardboard is installed through the pivot to cup joint a top one side inner wall, and cardboard one end is provided with the reinforcing pad, the shape of cardboard and reinforcing pad and cup joint a and second dead lever adaptation.
As a preferable aspect of the present invention: the outer wall of the circumference of the connecting rod is embedded with an elastic rubber ring, and the inner wall of the connecting sleeve is provided with an annular groove matched with the elastic rubber ring.
Further preferred as the invention: the connecting block is of a hexagonal prism structure.
As a still further scheme of the invention: the inner diameter of the fitting insertion hole gradually increases in a vertically downward direction.
On the basis of the scheme: the crossbeam bottom outer wall that is located on first support body is provided with first connecting seat, the crossbeam top outer wall that is located on the second support body is provided with the second connecting seat, install same back up beam through two connecting pins between second connecting seat and the first connecting seat, connecting pin one end is provided with the stopper that is the hexagon structure, and the stopper joint of connecting pin hexagon structure in the inner wall of first connecting seat, second connecting seat and back up beam, the connecting pin other end is provided with the screw thread, and the connecting pin has coupling nut through threaded connection.
A construction method of a foundation pit supporting pile top beam structure comprises the following steps:
s1: embedding a first fixing rod and a second fixing rod with a bearing nut and an annular gasket in advance through a tail rod;
s2: the connecting rod and the connecting sleeve are disassembled and assembled according to construction requirements;
s3: sleeving the second frame body on the first fixing rod and the second fixing rod, so that the first fixing rod and the second fixing rod both penetrate through the assembly jack of the second frame body;
s5: sleeving the sleeving part on the second fixing rod;
s4: sleeving the first frame body on the first fixing rod and the second fixing rod, so that the first fixing rod and the second fixing rod both penetrate through the assembly jack of the first frame body; meanwhile, the connecting sleeve of the first frame body is sleeved and mounted on the connecting rod of the second frame body;
s6: adjusting the position of the transverse reinforcing rod, and screwing the connecting block to enable the second thread head to penetrate through the through hole and be fixed in the assembly screw hole;
s7: buckling the clamping plate in a gap between the sleeve joint piece and the second fixing rod;
s8: mounting the reinforcing beam on the first connecting seat and the second connecting seat, and fixing the reinforcing beam through a connecting pin;
s9: and screwing the fixing nut on the first thread head to complete the integral fixation.
The invention has the beneficial effects that:
by arranging the first frame body, the second frame body and other structures, the first frame body and the second frame body can be used as a main frame for supporting during installation, the structural firmness is guaranteed, the time for erecting a large number of reinforcing steel bars is saved, and the construction period is effectively shortened; through setting up connecting rod and connecting sleeve isotructure, the user can highly carry out the dismouting according to the demand to realize that the multilayer erects, promoted the flexibility.
By arranging the transverse reinforcing rod, the second threaded head and other structures, the second threaded head can be conveniently installed in the assembly threaded hole of the connecting rod in a manner of rotating the transverse reinforcing rod, so that the structural firmness is improved; through setting up the chucking groove, can be behind the installation of horizontal anchor strut for cup joint spare card is in the chucking inslot, in order to play spacing effect, has promoted the reliability and the firmness of installation.
Through setting up cardboard and reinforcing pad, can block the cardboard in the space of cup jointing the piece behind the chucking groove is gone into to cup jointing the piece card to reach spacing fixed purpose, further promoted the reinforcement effect, glue the ring through setting up elasticity, can be convenient for the two and tentatively install, and promoted the firm in connection degree between connecting rod and the connecting sleeve to a certain extent.
Through the connecting block that sets up hexagonal prism structure, can be convenient for when the horizontal reinforcing bar of installation, assemble through twisting the connecting block to installation convenience has been promoted.
The inner diameter of the assembling jack is gradually increased along the vertical downward direction, so that the first fixing rod and the second fixing rod can be guided, the installation can be more labor-saving, and the practicability is improved; through setting up reinforcing beam isotructure, can further support the reinforcement to first support body and second support body when the installation, promote structural firmness.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic structural view of a local assembly of a top beam structure of a foundation pit supporting pile provided by the invention;
fig. 2 is a schematic structural view of a top beam structure of a foundation pit supporting pile according to the present invention;
fig. 3 is a schematic structural view of a sectional view of a connecting sleeve of a top beam structure of a foundation pit supporting pile provided by the invention;
fig. 4 is a schematic structural diagram of a socket joint of a top beam structure of a foundation pit supporting pile provided by the invention;
FIG. 5 is a schematic structural view of a sectional view of a rotating base of a top crown beam structure of a foundation pit supporting pile according to the present invention;
fig. 6 is a schematic structural view of the installation of a reinforcing beam of a top beam structure of a foundation pit supporting pile provided by the invention.
In the figure: 1 first support body, 2 second support bodies, 3 connecting sleeves, 4 first fixing rods, 5 cross beams, 6 connecting rods, 7 first thread heads, 8 assembling jacks, 9 clamping grooves, 10 annular gaskets, 11 bearing nuts, 12 through holes, 13 elastic rubber rings, 14 assembling screw holes, 15 transverse reinforcing rods, 16 connecting rod seats, 17 sleeve seats, 18 second fixing rods, 19 second thread heads, 20 connecting blocks, 21 rotating shafts, 22 sleeve-joint parts, 23 reinforcing pads, 24 clamping plates, 25 rotating seats, 26 limiting bulges, 27 first connecting seats, 28 connecting nuts, 29 connecting pins, 30 fixing nuts, 31 limiting blocks, 32 second connecting seats, 33 tail rods, 34 bearing threads and 35 reinforcing beams.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1:
a top beam structure of a foundation pit supporting pile, which is shown in figures 1-6 and comprises a first frame body 1 and a second frame body 2, the first frame body 1 and the second frame body 2 are both provided with cross beams 5 distributed at equal intervals, the outer walls of the bottoms of the first frame body 1 and the second frame body 2 are both provided with assembly jacks 8 distributed uniformly, a first fixing rod 4 and a second fixing rod 18 are respectively inserted into the assembly jack 8, the position of the second fixing rod 18 corresponds to the position of the uniform cross beam 5, the bottoms of the first fixing rod 4 and the second fixing rod 18 are integrally provided with tail rods 33, bearing threads 34 are arranged between the tail rods 33 and the first fixing rod 4 and the second fixing rod 18, the diameter of the tail rods 33 is smaller than the size of the bearing threads 34, a bearing nut 11 is installed on the outer wall of the bearing thread 34, an annular gasket 10 is arranged at the top of the bearing nut 11, and the diameter of the annular gasket 10 is larger than the inner diameter of the assembling jack 8; the top parts of the first fixing rod 4 and the second fixing rod 18 are integrally provided with a first thread head 7, the outer wall of the first thread head 7 is provided with a fixing nut 30, the outer wall of the top part of the cross beam 5 is detachably provided with a connecting rod 6 through a connecting rod seat 16, and the outer wall of the bottom part of the cross beam 5 is detachably provided with a connecting sleeve 3 matched with the connecting rod 6 through a sleeve seat 17; the connecting sleeve 3 on the first frame body 1 is sleeved on the outer wall of the top of the connecting rod 6 on the second frame body 2; by arranging the structures such as the first frame body 1 and the second frame body 2, the first frame body 1 and the second frame body 2 can be used as a main frame for supporting during installation, the structural firmness is guaranteed, the time for erecting a large number of reinforcing steel bars is saved, and the construction period is effectively shortened; through setting up connecting rod 6 and connecting sleeve 3 isotructures, the user can highly carry out the dismouting according to the demand to realize that the multilayer erects, promoted the flexibility.
To enhance structural integrity; as shown in fig. 1-5, a sleeve-joint member 22 is sleeved outside the second fixing rod 18, a rotating seat 25 is welded at one end of the sleeve-joint member 22, a transverse reinforcing rod 15 is rotatably connected inside the rotating seat 25 through a limiting protrusion 26, a connecting block 20 is integrally arranged at one end of the transverse reinforcing rod 15, a second threaded head 19 is integrally arranged at one end of the connecting block 20, through holes 12 for the second threaded heads 19 to pass through are formed in the outer walls of the two sides of the connecting sleeve 3, and assembling screw holes 14 matched with the second threaded heads 19 are formed in the outer walls of the two sides of the connecting rod 6; through setting up horizontal reinforcement bar 15, second thread head 19 isotructure, can be convenient for install second thread head 19 in the assembly screw 14 of connecting rod 6 with the mode of rotatory horizontal reinforcement bar 15 to promote structural firmness.
In order to improve the reinforcing effect; as shown in fig. 4, a clamping groove 9 adapted to the shape of the sleeve 22 is formed on the outer wall of one side of the second fixing rod 18; through setting up chucking groove 9, can be at horizontal anchor strut 15 installation back for cup joint 22 cards in chucking groove 9, in order to play spacing effect, promoted the reliability and the firmness of installation.
In order to further improve the reinforcing effect; as shown in fig. 4, a clamping plate 24 is mounted on an inner wall of one side of the top of the sleeve-connecting piece 22 through a rotating shaft 21, a reinforcing pad 23 is arranged at one end of the clamping plate 24, and the shapes of the clamping plate 24 and the reinforcing pad 23 are matched with the sleeve-connecting piece 22 and the second fixing rod 18; through setting up cardboard 24 and reinforcing pad 23, can be after cup joint piece 22 card goes into chucking groove 9, with cardboard 24 card in the space of cup joint piece 22 to reach spacing fixed purpose, further promoted the reinforcement effect.
In order to improve the connection reliability; as shown in fig. 3, the ring 13 is glued to the embedded elasticity that installs of connecting rod 6 circumference outer wall, the ring channel of gluing ring 13 adaptation with elasticity is seted up to connecting sleeve 3 inner wall, glues ring 13 through setting up elasticity, can be convenient for the two preliminary installations to the firm in connection between connecting rod 6 and the connecting sleeve 3 has been promoted to a certain extent.
To facilitate assembly; as shown in fig. 3, the connection block 20 has a hexagonal prism-shaped structure; through the connecting block 20 who sets up hexagonal prism structure, can be convenient for assemble through twisting connecting block 20 when horizontal reinforcing rod 15 of installation to the installation convenience has been promoted.
To facilitate the assembly of the first fixing lever 4 and the second fixing lever 18; as shown in fig. 2 and 6, the inner diameter of the assembly insertion hole 8 is gradually increased along the vertical downward direction, and the inner diameter of the assembly insertion hole 8 is gradually increased along the vertical downward direction, so that the first fixing rod 4 and the second fixing rod 18 can be guided, the installation can be more labor-saving, and the practicability is improved.
To enhance structural integrity; as shown in fig. 6, a first connecting seat 27 is arranged on the outer wall of the bottom of the cross beam 5 on the first frame body 1, a second connecting seat 32 is arranged on the outer wall of the top of the cross beam 5 on the second frame body 2, the same reinforcing beam 35 is installed between the second connecting seat 32 and the first connecting seat 27 through two connecting pins 29, a limiting block 31 in a hexagonal structure is arranged at one end of each connecting pin 29, the limiting block 31 in the hexagonal structure of each connecting pin 29 is clamped on the inner walls of the first connecting seat 27, the second connecting seat 32 and the reinforcing beam 35, threads are arranged at the other end of each connecting pin 29, and the connecting pins 29 are connected with connecting nuts 28 through threads; through setting up reinforcing beam 35 isotructure, can further support the reinforcement to first support body 1 and second support body 2 when the installation, promote structural firmness.
Example 2:
a construction method of a foundation pit supporting pile top crown beam structure is shown in figures 1-6 and comprises the following steps:
s1: embedding a first fixing rod 4 with a bearing nut 11 and an annular gasket 10 and a second fixing rod 18 in advance through a tail rod 33;
s2: the connecting rod 6 and the connecting sleeve 3 are disassembled and assembled according to construction requirements;
s3: sleeving the second frame body 2 on the first fixing rod 4 and the second fixing rod 18, so that the first fixing rod 4 and the second fixing rod 18 both penetrate through the assembly jack 8 of the second frame body 2;
s5: sleeving the socket 22 on the second fixing rod 18;
s4: sleeving the first frame body 1 on the first fixing rod 4 and the second fixing rod 18, so that the first fixing rod 4 and the second fixing rod 18 both penetrate through the assembly jack 8 of the first frame body 1; meanwhile, the connecting sleeve 3 of the first frame body 1 is sleeved and arranged on the connecting rod 6 of the second frame body 2;
s6: adjusting the position of the transverse reinforcing rod 15, screwing the connecting block 20, and enabling the second thread head 19 to penetrate through the through hole 12 and be fixed in the assembling screw hole 14;
s7: buckling a clamping plate 24 in a gap between the sleeve 22 and the second fixing rod 18;
s8: the reinforcing beam 35 is mounted on the first and second connecting seats 27 and 32 and fixed by the connecting pin 29;
s9: the fixing nut 30 is screwed on the first screw head 7 to complete the integral fixation.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. A foundation pit supporting pile top crown beam structure comprises a first frame body (1) and a second frame body (2), and is characterized in that cross beams (5) distributed at equal intervals are arranged on the first frame body (1) and the second frame body (2), assembly jacks (8) distributed uniformly are formed in the outer walls of the bottoms of the first frame body (1) and the second frame body (2), a first fixing rod (4) and a second fixing rod (18) are respectively inserted into the assembly jacks (8), the position of the second fixing rod (18) is uniform, the cross beams (5) correspond to each other, tail rods (33) are uniformly arranged at the bottoms of the first fixing rod (4) and the second fixing rod (18), bearing threads (34) are arranged between the tail rods (33) and the first fixing rod (4) and the second fixing rod (18), and the diameter of the tail rods (33) is smaller than the size of the bearing threads (34), the outer wall of the bearing thread (34) is provided with a bearing nut (11), the top of the bearing nut (11) is provided with an annular gasket (10), and the diameter of the annular gasket (10) is larger than the inner diameter of the assembling jack (8); the top parts of the first fixing rod (4) and the second fixing rod (18) are uniformly provided with a first thread head (7), the outer wall of the first thread head (7) is provided with a fixing nut (30), the outer wall of the top part of the cross beam (5) is detachably provided with a connecting rod (6) through a connecting rod seat (16), and the outer wall of the bottom part of the cross beam (5) is detachably provided with a connecting sleeve (3) matched with the connecting rod (6) through a sleeve seat (17); the connecting sleeve (3) on the first frame body (1) is sleeved on the outer wall of the top of the upper connecting rod (6) of the second frame body (2).
2. The foundation pit supporting pile top crown beam structure as claimed in claim 1, wherein a sleeve joint member (22) is sleeved outside the second fixing rod (18), a rotating seat (25) is welded at one end of the sleeve joint member (22), a transverse reinforcing rod (15) is rotatably connected inside the rotating seat (25) through a limiting protrusion (26), a connecting block (20) is integrally arranged at one end of the transverse reinforcing rod (15), a second threaded head (19) is integrally arranged at one end of the connecting block (20), through holes (12) for the second threaded heads (19) to pass through are formed in outer walls of two sides of the connecting sleeve (3), and assembling screw holes (14) matched with the second threaded heads (19) are formed in outer walls of two sides of the connecting rod (6).
3. The foundation pit supporting pile top crown beam structure as claimed in claim 2, wherein the outer wall of one side of the second fixing rod (18) is provided with a clamping groove (9) matched with the shape of the sleeve joint member (22).
4. A foundation pit supporting pile top crown beam structure according to claim 3, wherein a clamping plate (24) is installed on the inner wall of one side of the top of the sleeve-connecting piece (22) through a rotating shaft (21), a reinforcing pad (23) is arranged at one end of the clamping plate (24), and the shapes of the clamping plate (24) and the reinforcing pad (23) are matched with the sleeve-connecting piece (22) and the second fixing rod (18).
5. The foundation pit supporting pile top crown beam structure according to claim 4, wherein an elastic rubber ring (13) is embedded in the outer circumferential wall of the connecting rod (6), and an annular groove matched with the elastic rubber ring (13) is formed in the inner wall of the connecting sleeve (3).
6. A foundation pit supporting pile top crown beam structure according to claim 5, characterized in that the connecting block (20) is of a hexagonal prism structure.
7. A foundation pit supporting pile top crown beam structure according to claim 6, characterized in that the inside diameter of the fitting insertion hole (8) is gradually increased in a vertically downward direction.
8. The foundation pit supporting pile top crown beam structure according to claim 7, characterized in that a first connecting seat (27) is arranged on the outer wall of the bottom of the cross beam (5) on the first frame body (1), a second connecting seat (32) is arranged on the outer wall of the top of the cross beam (5) on the second frame body (2), the same reinforcing beam (35) is installed between the second connecting seat (32) and the first connecting seat (27) through two connecting pins (29), a limiting block (31) in a hexagonal structure is arranged at one end of each connecting pin (29), the limiting block (31) in the hexagonal structure of each connecting pin (29) is clamped on the inner walls of the first connecting seat (27), the second connecting seat (32) and the reinforcing beam (35), threads are arranged at the other end of each connecting pin (29), and a connecting nut (28) is connected to each connecting pin (29) through threads.
9. A construction method of a supporting structure for a foundation pit pile top crown beam structure according to any one of claims 1 to 8, comprising the steps of:
s1: embedding a first fixing rod (4) with a bearing nut (11) and an annular gasket (10) and a second fixing rod (18) in advance through a tail rod (33);
s2: the connecting rod (6) and the connecting sleeve (3) are disassembled and assembled according to construction requirements;
s3: sleeving the second frame body (2) on the first fixing rod (4) and the second fixing rod (18) so that the first fixing rod (4) and the second fixing rod (18) penetrate through the assembly jack (8) of the second frame body (2);
s5: sleeving the sleeving part (22) on the second fixing rod (18);
s4: sleeving a first frame body (1) on a first fixing rod (4) and a second fixing rod (18) so that the first fixing rod (4) and the second fixing rod (18) penetrate through an assembling jack (8) of the first frame body (1); meanwhile, the connecting sleeve (3) of the first frame body (1) is sleeved and mounted on the connecting rod (6) of the second frame body (2);
s6: adjusting the position of the transverse reinforcing rod (15), screwing the connecting block (20) to ensure that the second thread head (19) passes through the through hole (12) and is fixed in the assembling screw hole (14);
s7: buckling a clamping plate (24) in a gap between the sleeve joint (22) and the second fixing rod (18);
s8: mounting a reinforcing beam (35) on the first connecting seat (27) and the second connecting seat (32) and fixing the reinforcing beam through a connecting pin (29);
s9: and screwing the fixing nut (30) on the first thread head (7) to complete the integral fixation.
CN202011584691.6A 2020-12-28 2020-12-28 Foundation pit supporting pile top crown beam structure and construction method thereof Pending CN112554207A (en)

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CN111441365A (en) * 2020-04-20 2020-07-24 中国建筑一局(集团)有限公司 Assembly type high-support reverse-drawing type steel inclined strut mechanism, system and construction method

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CN111441365A (en) * 2020-04-20 2020-07-24 中国建筑一局(集团)有限公司 Assembly type high-support reverse-drawing type steel inclined strut mechanism, system and construction method

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