CN215669556U - Integrally-stressed supporting system capable of actively controlling displacement - Google Patents
Integrally-stressed supporting system capable of actively controlling displacement Download PDFInfo
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- CN215669556U CN215669556U CN202121805817.8U CN202121805817U CN215669556U CN 215669556 U CN215669556 U CN 215669556U CN 202121805817 U CN202121805817 U CN 202121805817U CN 215669556 U CN215669556 U CN 215669556U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 28
- 239000004567 concrete Substances 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000003416 augmentation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
The utility model discloses an integrally stressed supporting system capable of actively controlling displacement, which comprises: the stress structure comprises an enclosure structure, an existing structure or a large-rigidity structure; the concrete transverse supporting system is connected with the stress structure through a stress application device; the force applying device can apply axial force to control the displacement of the stressed structure. The utility model can improve the deformation control capability of the foundation pit, and has the advantages of wide application range, good safety and the like.
Description
Technical Field
The utility model relates to the technical field of foundation pit engineering, in particular to a wholly stressed support system capable of actively controlling displacement.
Background
Excavation of the foundation pit can cause settlement and displacement of surrounding strata, so that safety of adjacent subway tunnels, buildings and the like is affected.
A supporting system for actively controlling the displacement of a foundation pit (CN201810101897.5) adopts a concrete support and force application device, and takes the stability of the supporting system and the active control of the displacement of a space enclosing structure into consideration. Applying a transverse thrust outside the foundation pit to the enclosure structure by using a thrust augmentation device to reduce the displacement of the enclosure structure; the concrete support system is not easy to be unstable, and the stability of the whole system is ensured.
However, this system has the following disadvantages: (1) the enclosure structure is limited to the underground continuous wall, and the application range is limited; (2) the enclosure structure is directly connected with the force application device/support system, so that the enclosure structure is not suitable for certain projects; (3) the force applying device is only arranged on one side of the foundation pit, and the capacity of actively controlling the displacement is limited.
A double-surrounding purlin concrete inner support system (CN 211395689U) with a deformation compensation device provides the double-surrounding purlin concrete inner support system with the deformation compensation device, and aims to solve the problem that a foundation pit deforms too much under the combined action of the external soil pressure of the foundation pit and the axial shrinkage effect of an inner support beam of a foundation pit peripheral retaining pile.
However, this system has the following disadvantages: (1) the inner surrounding purline beam is limited between the inner supporting beam and the outer surrounding purline beam within the plane range of the inner supporting beam, and the force application device can only apply force locally, so that the force application device can only apply force to the enclosure structure within a small range, and the deformation control capability is limited. In addition, the two ends of the inner-surrounding purlin beam are connected with the supporting beam and the peripheral purlin beam, so that the inner-surrounding purlin beam is easily separated from the supporting beam or the peripheral purlin beam once the stress application is overlarge, and the safety of a foundation pit is affected. (2) The enclosure structure is limited to the underground continuous wall, and the application range is limited; (3) the force applying device is only arranged on one side of the foundation pit, and the capacity of actively controlling the displacement is limited.
Based on the above problems, there is no supporting system capable of actively controlling displacement and integrally stressed.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above technical problems, it is necessary to provide a supporting system capable of actively controlling displacement, which has good deformation control capability, wide application range and good safety and is capable of controlling the overall stress.
An integrally stressed actively controlled displacement support system comprising:
the stress structure comprises an enclosure structure, an existing structure or a large-rigidity structure;
the concrete transverse supporting system is connected with the stress structure through a stress application device; the force applying device can apply axial force to control the displacement of the stressed structure;
in one embodiment, a surrounding purlin is arranged between the enclosure structure and the force applying device.
In one embodiment, the enclosure is a row of piles or a diaphragm wall.
In one embodiment, the force applying device is arranged on one side or more sides of the foundation pit.
In one embodiment, embedded part base plates are arranged at two ends of the stress application device, anchoring steel bars extend out of the embedded part base plates, and the anchoring steel bars are embedded in the concrete transverse supporting system and the surrounding purlin or the existing structure.
In one embodiment, the force applying device is a jack.
In one embodiment, a locking device is arranged between the concrete transverse supporting system and the surrounding purlin or the existing structure, and the locking device and the force applying device are distributed in a staggered mode.
In one embodiment, the locking device comprises a concrete pier, one end of the concrete pier is connected with the concrete transverse supporting system, and the other end of the concrete pier abuts against the purlin or the existing structure through a self-locking device.
According to the integrally stressed support system capable of actively controlling displacement, the enclosing structure or the existing structure is arranged, the enclosing purlin is arranged between the enclosing structure and the force application device, when the force application device applies transverse thrust outside the foundation pit, the thrust can be applied to the whole foundation pit through the enclosing purlin and the enclosing structure, or the thrust can be applied to the whole foundation pit directly through the existing structure, so that the deformation control capability of the foundation pit can be improved, and the integrally stressed support system has the advantages of wide application range, good safety and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an integrally stressed actively controlled displacement support system according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an overall stressed actively displacement-controlled support system according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an overall stressed actively displacement-controlled support system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an overall stressed actively-controlled displacement support system according to a fourth embodiment of the present invention.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the utility model provides an integrally stressed supporting system capable of actively controlling displacement, which comprises a stressed structure 1, a surrounding purlin 2, a concrete transverse supporting system 3 and a force application device 4.
The stressed structure 1 comprises an enclosure structure, an existing structure or a large-rigidity structure; the concrete transverse supporting system 3 is connected with the stressed structure 1 through a force application device 4; the force applying device 4 can apply an axial force to control the displacement of the stressed structure 1.
In one embodiment, a surrounding purlin 2 is arranged between the enclosure structure and the force applying device 4. And a surrounding purlin 2 is not required to be arranged between the envelope structure and the force applying device 4.
The force applying device 4 may be a jack or the like. The concrete transverse supporting system 3 is of one or a combination of an integral rod system structure or a plate type structure; the upright post system is used for vertically supporting the concrete transverse supporting system 3.
According to the integrally stressed support system capable of actively controlling displacement, the enclosing purlin 2 is arranged between the enclosing structure and the force application device 4 through the arrangement of the enclosing structure or the existing structure, when the force application device 4 applies lateral thrust outside a foundation pit, the thrust can be applied to the whole foundation pit through the enclosing purlin 2 and the enclosing structure, or the thrust is directly applied to the whole foundation pit through the existing structure, so that the deformation control capability of the foundation pit can be improved, and the integrally stressed support system has the advantages of wide application range, good safety and the like.
In an embodiment of the present invention, as shown in fig. 1, the enclosure is a diaphragm wall, and as shown in fig. 2, the enclosure may also be a row pile. As shown in fig. 3, the enclosure may also be an existing structure or the like.
As shown in fig. 1-3, the force means 4 may be arranged at one side of the foundation pit. Alternatively, as shown in fig. 4, the force applying means 4 may be provided on both sides of the foundation pit, and the force applying means 4 may apply force simultaneously or in stages.
In an embodiment of the present invention, the concrete lateral supporting system 3 is made of reinforced concrete, and the upright column body is one or a combination of a steel lattice column, a steel tube, concrete and steel tube concrete. Specifically, the column system is composed of a plurality of columns, and the lower ends of the columns are inserted into column piles or soil bodies.
In an embodiment of the utility model, embedded part backing plates 6 are arranged at two ends of the force applying device 4, anchoring steel bars 7 extend out of the embedded part backing plates 6, and the anchoring steel bars 7 are embedded in the concrete transverse supporting system 3 and the surrounding purlin or the existing structure. In this way, the connection strength of the urging means 4 can be increased.
In an embodiment of the utility model, a locking device 5 is arranged between the concrete transverse supporting system 3 and the purlin or the existing structure, and the locking device 5 and the force applying device 4 are distributed in a staggered manner.
Specifically, the locking device 5 comprises a concrete pier, one end of the concrete pier is connected with the concrete transverse supporting system 3, and the other end of the concrete pier props against the purlin or the existing structure through a self-locking device. In this embodiment, the locking device 5 may be made of a material having high strength and low compressibility, such as a steel plate or a grouting material. The self-locking means may be a wedge or the like. When a gap exists between the purlin or the existing structure and the concrete pier, the self-locking device can be inserted into the gap for self-locking, so that the safety of the structure is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. An integrally stressed actively displacement-controllable support system, comprising:
the stress structure comprises an enclosure structure, an existing structure or a large-rigidity structure;
the concrete transverse supporting system is connected with the stress structure through a stress application device; the force applying device can apply axial force to control the displacement of the stressed structure.
2. The integrally stressed actively displaceable control brace system of claim 1, wherein a purlin is provided between said envelope and said stressing means.
3. The integrally stressed actively displaceable support system according to claim 1, wherein said building envelope is a row of piles or a diaphragm wall.
4. The integrally stressed actively controlled displacement support system according to claim 2, wherein said force means is disposed at one or more sides of the excavation.
5. The integrally stressed support system capable of actively controlling displacement according to claim 4, wherein embedded part base plates are arranged at two ends of the stress application device, anchoring steel bars extend out of the embedded part base plates, and the anchoring steel bars are embedded in the concrete transverse support system and the surrounding purlin or the existing structure.
6. The integrally stressed actively controlled displacement support system of claim 5, wherein said force means is a jack.
7. The integrally stressed actively controlled displacement brace system of claim 2, wherein locking means are provided between said lateral concrete bracing system and said purlin or existing structure, said locking means and said stressing means being staggered.
8. The integrally stressed actively displaceable control support system according to claim 7, wherein said locking means comprises a concrete pier, one end of which is connected to the lateral concrete support system, and the other end of which is held against said purlin or existing structure by self-locking means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121805817.8U CN215669556U (en) | 2021-08-04 | 2021-08-04 | Integrally-stressed supporting system capable of actively controlling displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121805817.8U CN215669556U (en) | 2021-08-04 | 2021-08-04 | Integrally-stressed supporting system capable of actively controlling displacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215669556U true CN215669556U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121805817.8U Active CN215669556U (en) | 2021-08-04 | 2021-08-04 | Integrally-stressed supporting system capable of actively controlling displacement |
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| Country | Link |
|---|---|
| CN (1) | CN215669556U (en) |
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2021
- 2021-08-04 CN CN202121805817.8U patent/CN215669556U/en active Active
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Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |