CN216586572U - A asymmetric supporting construction of deep basal pit for approaching on existing highway - Google Patents
A asymmetric supporting construction of deep basal pit for approaching on existing highway Download PDFInfo
- Publication number
- CN216586572U CN216586572U CN202123074542.8U CN202123074542U CN216586572U CN 216586572 U CN216586572 U CN 216586572U CN 202123074542 U CN202123074542 U CN 202123074542U CN 216586572 U CN216586572 U CN 216586572U
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- supporting
- assembly
- deep
- enclosure assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model discloses an asymmetric supporting structure of a deep foundation pit for approaching an existing highway, which comprises a foundation pit enclosure assembly and a supporting assembly, wherein the foundation pit enclosure assembly is arranged along a foundation pit supporting side line, the supporting assembly is arranged in the deep foundation pit, and the supporting assembly is contacted with the upper part of the foundation pit enclosure assembly and is used for supporting the foundation pit enclosure assembly; the foundation pit support assembly comprises a steel sheet pile retaining wall and a plurality of first I-shaped steels, wherein the steel sheet pile retaining wall is used for supporting the edge of a foundation pit, and the first I-shaped steels are fixedly arranged on the inner side of the steel sheet pile retaining wall at intervals. According to the utility model, the foundation pit edge close to the existing highway is surrounded by the foundation pit surrounding assembly, the supporting assembly is arranged in the foundation pit to reinforce and support the foundation pit surrounding assembly, the bearing capacity of the surrounding structure is greatly improved by adopting a simple and low-cost structure, the unstable overturning of the surrounding structure caused by overlarge bearing is effectively prevented, and the operation safety of the existing highway and the construction safety of the foundation pit are ensured.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to an asymmetric supporting structure for a deep foundation pit close to an existing highway.
Background
The foundation pit is a soil pit excavated at a foundation design position according to a base elevation and a base plane size, and can be divided into a deep foundation pit and a shallow foundation pit, wherein the deep foundation pit refers to an engineering with an excavation depth of more than 5 meters (including 5 meters), or a construction with a depth of not more than 5 meters, but particularly complex geological conditions, surrounding environments and underground pipelines. The deep foundation pit is generally provided with a vertical retaining supporting structure around, and the existing supporting structure is generally a plate (pile) wall with a certain insertion depth below the basement of an excavation surface and is assisted with an inner supporting structure.
In the process of supporting and protecting a deep foundation pit near an existing highway, because a single-side support in the prior art cannot form a closed enclosure structure, an inner support cannot be erected on the top, and meanwhile, the cantilever supporting structure is often seriously deformed under the influence of large load of the existing highway, a steel sheet pile is easily greatly deformed or unstably overturned, and the operation safety of the existing highway and the construction safety of the foundation pit are seriously influenced. The traditional external-pulling anchor support has long construction period and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides an asymmetric supporting structure for a deep foundation pit close to an existing highway, which aims to solve the problems in the prior art.
The utility model provides an asymmetric supporting structure of a deep foundation pit for approaching an existing highway, which comprises a foundation pit enclosure assembly and a supporting assembly, wherein the foundation pit enclosure assembly is arranged along a foundation pit supporting side line, the supporting assembly is arranged in the deep foundation pit, and the supporting assembly is contacted with the upper part of the foundation pit enclosure assembly and is used for supporting the foundation pit enclosure assembly;
the foundation pit enclosure assembly comprises a steel sheet pile retaining wall and a plurality of first I-shaped steels, the steel sheet pile retaining wall is used for enclosing the edge of a foundation pit, the first I-shaped steels are fixedly arranged on the inner side of the steel sheet pile retaining wall at intervals, and the enclosing purlins are transversely arranged on the upper portions of the first I-shaped steels.
Further, the support assembly comprises a column and a cross bar; one end part of the cross rod is transversely and fixedly installed at the top of the upright post, and the other end part of the cross rod is fixedly installed with the surrounding purlin.
Furthermore, the upright column comprises a second I-beam and two third I-beams which are arranged in parallel, the second I-beam and the two third I-beams are both vertically arranged, and wing plates of the two third I-beams are fixedly arranged on a web plate of the second I-beam.
Furthermore, the support assemblies are two groups and are respectively supported at the left end and the right end of the foundation pit support assembly.
Furthermore, the enclosing purlin is composed of two I-shaped steel which are fixedly arranged up and down in parallel.
The utility model has the advantages and positive effects that:
1. the asymmetric supporting structure for the deep foundation pit close to the existing highway is used for enclosing the edge of the foundation pit close to the existing highway by arranging the foundation pit enclosure assembly, and reinforcing and supporting the foundation pit enclosure assembly by arranging the supporting assembly inside the foundation pit.
2. This a foundation ditch enclosure assembly for closing on in asymmetric supporting construction of deep basal pit of existing highway realizes the function of retaining soil stagnant water through steel sheet pile retaining wall, adorns the I-steel admittedly at steel sheet pile retaining wall inboard, has further strengthened enclosure's rigidity, effectively prevents that steel sheet pile retaining wall from warping under the soil layer extrusion, improves supporting construction's steadiness.
3. This a supporting component for being close to among the asymmetric supporting construction of deep basal pit on existing highway adopts the structure of the Ding shun combination stake, improves supporting component's stability and bearing capacity, forms the outrigger at foundation ditch enclosure subassembly inboard, ensures that supporting construction still can keep firm under high strength load.
4. This an enclose purlin for approaching on existing highway's in the asymmetric supporting construction of deep basal pit adopts the double pin I-steel structure, connects into a whole with a plurality of first I-steel of foundation ditch enclosure subassembly are firm, has further improved supporting construction's bearing capacity, ensures supporting construction's stability.
5. The utility model has simple structure, scientific and reasonable design and ingenious concept, adopts a low-cost structure to effectively improve the bearing capacity of the supporting structure, can be applied to the construction of deep foundation pits close to roads, and has wide popularization and application values.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 2 in accordance with the present invention;
fig. 5 is a partially enlarged view of the portion C of fig. 2 according to the present invention.
In the figure, 1 is a foundation pit support assembly, 2 is a support assembly, 11 is a steel sheet pile retaining wall, 12 is a surrounding purlin, 13 is a first I-shaped steel, 21 is a cross bar, 22 is a vertical column, 221 is a second I-shaped steel, and 222 is a third I-shaped steel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides an asymmetric supporting structure of a deep foundation pit for approaching an existing highway, which comprises a foundation pit enclosure assembly 1 and a supporting assembly 2, wherein the foundation pit enclosure assembly 1 is arranged along a foundation pit supporting side line and used for enclosing the edge of the foundation pit, the supporting assembly 2 is arranged in the deep foundation pit, the supporting assembly 2 is anchored into a soil layer to form a cantilever structure, and the supporting assembly 2 is in contact with the upper part of the foundation pit enclosure assembly 1 and used for supporting the foundation pit enclosure assembly 1. Preferably, the support assemblies 2 are two groups and are respectively supported at the left end and the right end of the foundation pit support assembly 1. Preferably, the cross bar 21 is a steel pipe. By arranging the foundation pit support assembly 1 and the support assembly 2, the bearing capacity of the support structure is improved, the support structure is effectively prevented from unstably overturning due to overlarge bearing, and the operation safety of the existing road and the construction safety of the foundation pit are ensured.
Further, as shown in fig. 3 and 4, the foundation pit enclosure assembly 1 includes a steel sheet pile retaining wall 11 for enclosing the edge of the foundation pit, a plurality of first i-beams 13 are fixedly mounted on the inner side of the steel sheet pile retaining wall 11, and the first i-beams 13 are uniformly arranged at intervals at the concave side position inside the steel sheet pile retaining wall 11 and are used for reinforcing the steel sheet pile retaining wall 11 and preventing the steel sheet pile retaining wall 11 from being extruded and deformed by an outer soil layer. And the upper part of the first I-shaped steel 13 is fixedly provided with a horizontally arranged surrounding purlin 12. The purlin 12 is composed of two I-shaped steel bars which are fixedly arranged up and down in parallel. The enclosing purlin 12 adopts a double-spliced I-shaped steel structure, and a plurality of first I-shaped 12 steels of the foundation pit enclosure assembly 1 are stably connected into a whole, so that the bearing capacity of the supporting structure is further improved, and the stability of the supporting structure is ensured. Preferably, the purlin 12 and the first i-steel 13 are connected by full welding. After the construction is finished, the steel sheet pile retaining wall 11, the first I-shaped steel 13 and the enclosing purlin 12 are detached together, so that the steel sheet pile retaining wall can be used for the next construction in a circulating mode, and the construction cost is saved.
Further, as shown in fig. 5, the supporting assembly 2 includes a column 22 and a cross bar 21, one end of the cross bar 21 is transversely fixed on the top of the column 22, and the other end of the cross bar 21 is fixed with the purlin 12. The upright column 22 is a T-shaped steel composite pile, the upright column 22 comprises a second I-shaped steel 221 and two third I-shaped steels 222 arranged in parallel, the second I-shaped steel 221 and the two third I-shaped steels 222 are both vertically arranged, and wing plates of the two third I-shaped steels 222 are fixedly arranged on a web plate of the second I-shaped steel 221. Preferably, the flanges of the third i-beam 222 are welded to the web of the second i-beam 221. The end of the cross bar 21 is fixedly mounted on the upper portion of the second i-beam 221, and preferably, the cross bar 21 and the second i-beam 221 are connected by full welding. The height of the tops of the second I-beam 221 and the third I-beam 222 is slightly larger than that of the purlin 12. The second I-shaped steel 221 and the third I-shaped steel 222 are arranged in a straight-end structure, so that the bearing capacity of the supporting assembly 2 is improved, a stable supporting structure is formed inside the deep foundation pit, the foundation pit support assembly 1 at the edge of the deep foundation pit is reinforced and supported, and the instability and the overturning of the edge of the foundation pit are prevented.
The utility model has simple structure, scientific and reasonable design and ingenious concept, adopts a low-cost structure to effectively improve the bearing capacity of the supporting structure, can be applied to the construction of deep foundation pits close to roads, and has wide popularization and application values.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.
Claims (5)
1. The asymmetric supporting structure of the deep foundation pit for approaching the existing highway is characterized by comprising a foundation pit enclosure assembly (1) and a supporting assembly (2), wherein the foundation pit enclosure assembly (1) is arranged along a foundation pit supporting side line, the supporting assembly (2) is arranged inside the deep foundation pit, and the supporting assembly (2) is in contact with the upper part of the foundation pit enclosure assembly (1) and is used for supporting the foundation pit enclosure assembly (1);
the foundation pit enclosure assembly (1) comprises a steel sheet pile retaining wall (11) used for enclosing the edge of a foundation pit and a plurality of first I-shaped steels (13), wherein the first I-shaped steels (13) are fixedly arranged on the inner side of the steel sheet pile retaining wall (11) at intervals and are uniformly arranged, and purlins (12) transversely arranged are fixedly arranged on the upper portions of the first I-shaped steels (13).
2. The asymmetric supporting structure of a deep excavation for adjacent to an existing road according to claim 1, characterized in that the supporting assembly (2) comprises a column (22) and a cross bar (21); one end part of the cross rod (21) is transversely and fixedly arranged at the top of the upright column (22), and the other end part of the cross rod (21) is fixedly arranged with the surrounding purlin (12).
3. The asymmetric supporting structure for the deep foundation pit adjacent to the existing road as claimed in claim 2, wherein the upright column (22) comprises a second I-shaped steel (221) and two third I-shaped steels (222) arranged side by side, the second I-shaped steel (221) and the two third I-shaped steels (222) are both arranged vertically, and wing plates of the two third I-shaped steels (222) are both fixedly arranged on a web plate of the second I-shaped steel (221).
4. The asymmetric supporting structure for the deep foundation pit adjacent to the existing road as claimed in claim 1, wherein there are two groups of said supporting members (2) supported at the left and right ends of said foundation pit enclosing member (1).
5. The asymmetric supporting structure for the deep foundation pit near the existing road as claimed in claim 1, wherein the purlin (12) is composed of two I-shaped steel bars which are fixedly arranged up and down in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123074542.8U CN216586572U (en) | 2021-12-09 | 2021-12-09 | A asymmetric supporting construction of deep basal pit for approaching on existing highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123074542.8U CN216586572U (en) | 2021-12-09 | 2021-12-09 | A asymmetric supporting construction of deep basal pit for approaching on existing highway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216586572U true CN216586572U (en) | 2022-05-24 |
Family
ID=81610653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123074542.8U Active CN216586572U (en) | 2021-12-09 | 2021-12-09 | A asymmetric supporting construction of deep basal pit for approaching on existing highway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216586572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115982833A (en) * | 2023-03-17 | 2023-04-18 | 中国铁路设计集团有限公司 | Half-width design calculation method of bias foundation pit |
-
2021
- 2021-12-09 CN CN202123074542.8U patent/CN216586572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115982833A (en) * | 2023-03-17 | 2023-04-18 | 中国铁路设计集团有限公司 | Half-width design calculation method of bias foundation pit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110424411A (en) | A kind of irregular foundation pit assembled steel support device and its construction and application method | |
| CN216586572U (en) | A asymmetric supporting construction of deep basal pit for approaching on existing highway | |
| CN214883687U (en) | Foundation pit supporting structure | |
| CN112681331B (en) | Steel support and steel trestle integrated structure and construction method thereof | |
| CN206418464U (en) | A kind of Bailey bracket support system | |
| CN217974413U (en) | Deep and shallow foundation pit supporting construction structure | |
| CN215887884U (en) | Be applied to bailey frame steel trestle of deep basal pit construction | |
| CN213805443U (en) | Steel construction, frame beam structure, side slope reinforced structure and reinforcement and support structure | |
| CN215165641U (en) | Supporting structure adopting combination of triangular supports and Larsen steel sheet piles | |
| CN115288151A (en) | Assembled portal rigid frame structure supporting system and construction method thereof | |
| CN114108642A (en) | Ramp bridge and underground complex structure parallel construction method | |
| CN109695249B (en) | Herringbone foundation pit supporting structure | |
| CN114351719B (en) | Construction method of deep foundation pit underground continuous wall close to existing underground structure | |
| CN219343296U (en) | Tower crane foundation based on basement cast-in-situ structural column and steel bearing platform | |
| CN219586762U (en) | Double steel sheet pile enclosure structure | |
| CN219508592U (en) | Lattice column reinforcing connection structure | |
| CN221052667U (en) | Sinking type temporary capping structure for underground square | |
| CN220150114U (en) | Bridge jacking operation platform under limited space on water | |
| CN213390842U (en) | Local bearing and supporting structure of steel truss | |
| CN217460609U (en) | Horizontal steel supporting structure of reverse construction method | |
| CN219344166U (en) | Lower foundation ditch horse way bearing structure under hanging | |
| CN216586664U (en) | Ramp bridge combined supporting system constructed in parallel with underground complex | |
| CN220132917U (en) | Supporting structure adopting combination of L-shaped support and Lassen steel sheet pile | |
| CN216586585U (en) | Transverse supporting mechanism for foundation pit | |
| CN211596785U (en) | Deep basal pit supports anti-drop fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |