CN220908426U - Prefabricated concrete support supporting system of assembling of shield well - Google Patents
Prefabricated concrete support supporting system of assembling of shield well Download PDFInfo
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- CN220908426U CN220908426U CN202322203783.0U CN202322203783U CN220908426U CN 220908426 U CN220908426 U CN 220908426U CN 202322203783 U CN202322203783 U CN 202322203783U CN 220908426 U CN220908426 U CN 220908426U
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- 230000008093 supporting effect Effects 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
The utility model provides a shield well prefabrication assembly concrete support and protection system, which is characterized in that the periphery of the inner wall of an underground continuous wall is provided with assembled waist beam components, the waist beam components comprise prefabricated fixed waist beams and prefabricated simply supported waist beams, the prefabricated fixed waist beams are connected with the prefabricated simply supported waist beams, a first connecting bolt is arranged at the connecting position, a bolt connecting connector is pre-buried in the underground continuous wall, and a second connecting bolt connected with the bolt connecting connector is arranged in the prefabricated fixed waist beams; a rigid jacking device is arranged between the side wall of the prefabricated simply supported waist beam and the inner wall of the underground diaphragm wall, and a jacking part and a base of the rigid jacking device are respectively supported and arranged on the inner wall of the underground diaphragm wall and the side wall of the prefabricated simply supported waist beam. The utility model forms an integral supporting and supporting structure by the prefabricated fixed waist beam and the prefabricated simply supported waist beam which can be combined and detached, and can meet the requirements of standardized rapid assembly and disassembly under the condition of ensuring the supporting rigidity.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a shield well prefabrication assembly concrete support and protection system.
Background
The shield well is usually deep, and a plurality of concrete supports are often required to be arranged in the foundation pit in order to ensure the safety of the foundation pit. The cast-in-situ construction of the concrete support requires strong procedures such as reinforcement binding construction, concrete pouring and the like in a field foundation pit, the construction period is long, the support is required to be chiseled after the later support is completed, and the economical efficiency is low. In the prior art, the domestic assembly process rapidly develops, municipal engineering enclosure engineering can also promote a standardized construction system, and the shape of the shield well is always regular and uniform on the premise of meeting the shield construction, so that the shield well has the conditions of prefabrication construction and recycling.
Disclosure of utility model
The utility model aims to provide a concrete support system which shortens the support construction period and is convenient to assemble and disassemble.
For this purpose, the utility model adopts the following technical scheme:
the shield well prefabricating and assembling concrete supporting and protecting system comprises a waist beam component which is arranged around the inner wall of an underground continuous wall and can be assembled and combined, wherein the waist beam component comprises a prefabricating fixed waist beam and a prefabricating simple support waist beam, the prefabricating fixed waist beam is connected with the prefabricating simple support waist beam, a first connecting bolt is arranged at the connecting position, a bolt connecting connector is arranged in the underground continuous wall in an embedded mode, and a second connecting bolt connected with the bolt connecting connector is arranged in the prefabricating fixed waist beam; a rigid jacking device is arranged between the side wall of the prefabricated simply supported waist beam and the inner wall of the underground diaphragm wall, and a jacking part and a base of the rigid jacking device are respectively supported and arranged on the inner wall of the underground diaphragm wall and the side wall of the prefabricated simply supported waist beam.
Further: the rigid jacking device adopts an axial jack.
Further: the prefabricated simply supported waist beam is provided with a groove part on the side wall opposite to the inner wall of the underground continuous wall, and the rigid jacking device is arranged in the groove part.
Further: the prefabricated fixed waist beam and the prefabricated simply supported waist beam are arranged relatively in the underground diaphragm wall.
Further: the ends of two sides of the prefabricated fixed waist beam are respectively connected with the prefabricated simply supported waist beam and the other prefabricated fixed waist beam, and the connected area is an included angle area between the inner walls of the underground continuous wall.
Further: the prefabricated straight support is connected between the prefabricated fixed waist beam and the side wall of the opposite side of the prefabricated simply supported waist beam, and the prefabricated diagonal support is connected between the waist beam components in the included angle area.
Further: the end parts of the prefabricated straight support and the prefabricated diagonal support are provided with connecting areas, and third connecting bolts connected with the prefabricated fixed waist beam or the prefabricated simply supported waist beam are arranged in the connecting areas.
Further: the surface of the prefabricated fixed waist beam and the surface of the prefabricated simply supported waist beam are provided with hanging steel bars connected with the inner wall of the underground continuous wall.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model forms an integral supporting and supporting structure by the prefabricated fixed waist beam and the prefabricated simply supported waist beam which can be combined and detached, and the prefabricated fixed waist beam and the prefabricated simply supported waist beam are mutually connected by the first connecting bolts, so that the conventional concrete support is prevented from being used once by adopting a cast-in-situ cutting method, and can be recycled. Simultaneously, under the connection action of the second connecting bolts and the rigid jacking device, the rigidity of the waist beam part supporting enclosure is ensured, and the safety and stability of the foundation pit are ensured; therefore, the requirements of standardized rapid assembly and disassembly can be met under the condition of ensuring the supporting rigidity.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present utility model;
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
fig. 3 is a schematic view showing a structure in which the support of the present utility model is connected to a wale;
fig. 4 is a schematic structural view of the connecting bolt system of the present utility model.
The marks in the drawings are: the underground diaphragm wall 1, a prefabricated fixed waist beam 2, a prefabricated simple support waist beam 3, a prefabricated straight support 4, a prefabricated diagonal support 5, a connecting bolt system 6, a third connecting bolt 61, a second connecting bolt 62, a first connecting bolt 63, a rigid jacking device 7, a bolted connection connector 8 and a suspension steel bar 9.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
As shown in fig. 1-4, a prefabricated assembled concrete support system for a shield well is provided, assembled waist beam components are arranged around the inner wall of an underground continuous wall 1, the waist beam components are formed by concrete pouring, each waist beam component comprises a prefabricated fixed waist beam 2 and a prefabricated simply supported waist beam 3, a support system main body is connected and supported by adopting a connecting bolt system 6, the connecting bolt system 6 is provided with bolts and nuts (and gaskets) with different shape specifications according to different connecting positions, meanwhile, the prefabricated fixed waist beam 2 and the prefabricated simply supported waist beam 3 are mutually connected, a first connecting bolt 63 is arranged at the connecting position, a bolt connecting connector 8 is pre-buried in the underground continuous wall 1, and a second connecting bolt 62 connected with the bolt connecting connector 8 is arranged in the prefabricated fixed waist beam 2; a rigid jacking device 7 is arranged between the side wall of the prefabricated simply supported waist beam 3 and the inner wall of the underground diaphragm wall 1, and the jacking part and the base of the rigid jacking device 7 are respectively supported and arranged on the inner wall of the underground diaphragm wall 1 and the side wall of the prefabricated simply supported waist beam 3.
Wherein, the first connecting bolt 63, the second connecting bolt 62 and the third connecting bolt 61 of the connecting bolt system 6 mainly comprise an arc shape and a cylinder shape which are matched with the rod body according to different connecting positions; wherein the arc bolt is provided with threads at both ends thereof.
Specifically, the rigid jacking device 7 adopts an axial jack, and axial force is applied by the axial jack so as to ensure the connection effect of the integral waist beam component and the underground diaphragm wall 1, thereby forming an effective supporting effect on the underground diaphragm wall 1.
Specifically, the side wall of the prefabricated simply supported waist beam 3 opposite to the inner wall of the underground continuous wall 1 is provided with a groove 31, so that the prefabricated simply supported waist beam 3 can accommodate and place the rigid jacking device 7, and meanwhile, enough placement space is reserved for the rigid jacking device 7, so that the prefabricated simply supported waist beam 3 can also place the rigid jacking device 7 after being lowered.
Specifically, the prefabricated fixed waist beam 2 and the prefabricated simply supported waist beam 3 are arranged in opposite directions inside the underground diaphragm wall 1.
Wherein, prefabricated fixed waist rail 2's both sides tip is connected prefabricated simple branch waist rail 3 respectively and another prefabricated fixed waist rail 2, and the contained angle region between the continuous wall 1 inner wall in the continuous region that links to each other sets up first connecting bolt 63 in this contained angle region, and reserves the bolt hole that can supply this first connecting bolt 63 to pass at the tip of prefabricated fixed waist rail 2 and prefabricated simple branch waist rail 3. While the arc of the arc-shaped first connection bolt 63 is larger to accommodate the connection angle of the prefabricated fixed wale 2 and the prefabricated fixed wale 2 or the prefabricated simply supported wale 3 (as can be seen in fig. 1).
Specifically, be connected with prefabricated straight support 4 between the lateral wall of prefabricated fixed waist rail 2 and the prefabricated simple branch waist rail 3 opposite side, be connected with prefabricated bracing 5 between the waist rail part in the contained angle region. The number of prefabricated straight struts 4 and prefabricated diagonal struts 5 may be selected and arranged according to the actual required stiffness of the support to be achieved (as shown in fig. 1).
The ends of the prefabricated straight struts 4 and the prefabricated diagonal struts 5 are provided with connecting areas, third connecting bolts 61 connected with the prefabricated fixed waist beams 2 or the prefabricated simply supported waist beams 3 are arranged in the connecting areas, and bolt holes through which the third connecting bolts 61 can pass are reserved at corresponding positions for installing the arc-shaped third connecting bolts 61. Meanwhile, two groups of third connecting bolts 61 are preferably arranged according to the third connecting bolts 61 in the connecting area, so that the inner walls of the two sides in the ends of the prefabricated straight struts 4 and the prefabricated diagonal struts 5 can be connected with the prefabricated fixed waist rail 2 or the prefabricated simply supported waist rail 3, and the two groups of the arc-shaped third connecting bolts 61 are arranged at intervals up and down in order to avoid overlapping of the two groups of the arc-shaped third connecting bolts 61.
Specifically, the upper surfaces of the prefabricated fixed waist beam 2 and the prefabricated simply supported waist beam 3 are provided with suspension steel bars 9 connected with the inner wall of the underground diaphragm wall 1, so that the prefabricated fixed waist beam 2 and the prefabricated simply supported waist beam 3 are hung in the underground diaphragm wall 1, and the corresponding connection strength is improved.
Referring to fig. 1-4, when the disassembly tool disassembles and separates the runner 6 and the runner spindle 7 of the small mixed-flow runner assembly, the disassembly steps are as follows:
S1: firstly, excavating a grooved underground diaphragm wall 1, lowering a diaphragm wall reinforcement cage, embedding a bolt connection connector 8 in the diaphragm wall reinforcement cage, and integrally casting the underground diaphragm wall 1;
S2: constructing a prefabricated fixed waist beam 2, a prefabricated simply supported waist beam 3, a prefabricated straight support 4 and a prefabricated diagonal support 5 of a concrete structure according to the foundation pit size specification, reserving connecting bolt holes according to the connecting requirement, and avoiding installing a connecting bolt system 6;
S3: digging a foundation pit, when digging to a concrete supporting elevation, lowering a prefabricated fixed waist beam 2, connecting a second connecting bolt 62 in the prefabricated fixed waist beam with a bolt connecting connector 8, and simultaneously hanging the prefabricated fixed waist beam on the underground diaphragm wall 1 by a hanging steel bar 9 at the upper part;
s4: the prefabricated simply supported waist beam 3 is lowered, the upper part of the prefabricated simply supported waist beam is hung with the underground diaphragm wall 1 through a hanging steel bar 9, and a first connecting bolt 63 is connected between the prefabricated fixed waist beam 2 and the prefabricated simply supported waist beam 3;
S5: lowering the prefabricated straight braces 4 and the prefabricated diagonal braces 5 and connecting the prefabricated straight braces 4 and the prefabricated fixed waist beam 2 and/or the prefabricated simply supported waist beam 3 through third connecting bolts 61;
S6: after connection is completed, axial force is applied by an axial force jack to form a prefabricated assembled concrete support and support system;
S7: and after the support is finished, the axial force of the axial force jack is unloaded, and the steps are reversely operated until the prefabricated fixed waist beam 2 and the prefabricated simply supported waist beam 3 are lifted out, so that the disassembly and recovery of the spliced concrete support and support system can be finished.
The above embodiment is only one preferred technical solution of the present utility model, and it should be understood by those skilled in the art that modifications and substitutions can be made to the technical solution or parameters in the embodiment without departing from the principle and essence of the present utility model, and all the modifications and substitutions are covered in the protection scope of the present utility model.
Claims (8)
1. The utility model provides a shield constructs prefabricated concrete support system of assembling of well which characterized in that: the method comprises the steps that waist beam components capable of being assembled and combined are arranged on the periphery of the inner wall of an underground diaphragm wall (1), each waist beam component comprises a prefabricated fixed waist beam (2) and a prefabricated simply supported waist beam (3), the prefabricated fixed waist beams (2) are connected with the prefabricated simply supported waist beams (3) mutually, a first connecting bolt (63) is arranged at the joint of each waist beam, a bolt connecting connector (8) is arranged in the underground diaphragm wall (1) in a pre-buried mode, and a second connecting bolt (62) connected with the corresponding bolt connecting connector (8) is arranged in the prefabricated fixed waist beams (2); a rigid jacking device (7) is arranged between the side wall of the prefabricated simply supported waist beam (3) and the inner wall of the underground diaphragm wall (1), and a jacking part and a base of the rigid jacking device (7) are respectively supported and arranged on the inner wall of the underground diaphragm wall (1) and the side wall of the prefabricated simply supported waist beam (3).
2. The shield well precast-assembly concrete support system of claim 1, wherein: the rigid jacking device (7) adopts an axial jack.
3. The shield well precast-assembly concrete support system of claim 1, wherein: the prefabricated simply supported waist beam (3) is provided with a groove part (31) on the side wall opposite to the inner wall of the underground continuous wall (1), and the rigid jacking device (7) is arranged in the groove part (31).
4. The shield well precast-assembly concrete support system of claim 1, wherein: the prefabricated fixed waist beam (2) and the prefabricated simply supported waist beam (3) are arranged in the underground diaphragm wall (1) relatively.
5. The shield well precast-assembly concrete support system of claim 1, wherein: the two side end parts of the prefabricated fixed waist beam (2) are respectively connected with the prefabricated simple waist beam (3) and the other prefabricated fixed waist beam (2), and the connected area is an included angle area between the inner walls of the underground continuous wall (1).
6. The shield well precast-assembly concrete support system of claim 5, wherein: the prefabricated straight support (4) is connected between the side walls of the opposite sides of the prefabricated fixed waist beam (2) and the prefabricated simply supported waist beam (3), and the prefabricated diagonal support (5) is connected between waist beam components in the included angle area.
7. The shield well precast-assembly concrete support system of claim 6, wherein: the end parts of the prefabricated straight support (4) and the prefabricated diagonal support (5) are provided with connecting areas, and third connecting bolts (61) connected with the prefabricated fixed waist beam (2) or the prefabricated simply supported waist beam (3) are arranged in the connecting areas.
8. The shield well precast-assembly concrete support system of claim 1, wherein: the surface of the prefabricated fixed waist beam (2) and the prefabricated simply supported waist beam (3) is provided with a suspension steel bar (9) connected with the inner wall of the underground diaphragm wall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322203783.0U CN220908426U (en) | 2023-08-15 | 2023-08-15 | Prefabricated concrete support supporting system of assembling of shield well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322203783.0U CN220908426U (en) | 2023-08-15 | 2023-08-15 | Prefabricated concrete support supporting system of assembling of shield well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220908426U true CN220908426U (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322203783.0U Active CN220908426U (en) | 2023-08-15 | 2023-08-15 | Prefabricated concrete support supporting system of assembling of shield well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220908426U (en) |
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2023
- 2023-08-15 CN CN202322203783.0U patent/CN220908426U/en active Active
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