CN209837041U - Steel pipe larsen sheet pile precipitation enclosure structure - Google Patents
Steel pipe larsen sheet pile precipitation enclosure structure Download PDFInfo
- Publication number
- CN209837041U CN209837041U CN201920174818.3U CN201920174818U CN209837041U CN 209837041 U CN209837041 U CN 209837041U CN 201920174818 U CN201920174818 U CN 201920174818U CN 209837041 U CN209837041 U CN 209837041U
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- CN
- China
- Prior art keywords
- steel pipe
- sheet pile
- larsen sheet
- steel
- larsen
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- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 103
- 239000010959 steel Substances 0.000 title claims abstract description 103
- 238000001556 precipitation Methods 0.000 title claims description 19
- 238000004873 anchoring Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 239000003673 groundwater Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The application discloses steel pipe larsen sheet pile dewatering envelope, including encircle arrange in foundation ditch lateral wall department all around to form a plurality of steel pipe larsen sheet piles of sealing enclosure, every steel pipe larsen sheet pile weld in by steel pipe and broken two the larsen sheet pile of the radial both sides of steel pipe constitutes, on two adjacent steel pipe larsen sheet piles the mutual interlock of larsen sheet pile is connected, the outside of enclosure is provided with the anchor shaped steel of squeezing into underground the inboard of sealing enclosure be provided with steel pipe larsen sheet pile pastes and leans on the shaped steel purlin of arranging, shaped steel purlin with anchor shaped steel passes through anchor rope fastening connection. This application had both guaranteed the whole closure of foundation ditch enclosure, effectively reduced ground water level in the foundation ditch again, because ground water level's continuous control can not cause harm to digging the foundation ditch inside when enclosure defect.
Description
Technical Field
The application relates to a foundation pit construction field, concretely relates to steel pipe larsen sheet pile dewatering envelope.
Background
After the deep foundation pit is enclosed and surrounded, a dewatering well is arranged in the foundation pit to drain underground water in an excavated soil body, so that the earth excavation and the normal construction of a structure in the foundation pit are ensured, but during the earth excavation and the structure construction, the dewatering well in the pit can influence the normal operation of the earth excavation and the structure construction; if the dewatering well removes underground water in the foundation pit, the underground water can slowly rise, and if the foundation pit enclosure body has defects, the underground water outside the foundation pit is gushed into the foundation pit, so that difficulty and delay of construction period are caused to earthwork excavation, and even serious safety hazard is brought to foundation pit enclosure.
Disclosure of Invention
The purpose of the application is: to above-mentioned problem, this application provides a steel pipe larsen sheet pile precipitation envelope, had both guaranteed the whole closure of foundation ditch enclosure, effectively reduced ground water level in the foundation ditch again, because ground water level's continuous control can not cause harm to digging the foundation ditch inside when enclosure defect.
The technical scheme of the application is as follows:
the utility model provides a steel pipe larsen sheet pile dewatering envelope, includes to encircle arrange in foundation ditch lateral wall department all around to form a plurality of steel pipe larsen sheet piles of closed enclosure, every steel pipe larsen sheet pile weld by steel pipe and one broken two in the larsen sheet pile of the radial both sides of steel pipe constitutes, on two adjacent steel pipe larsen sheet piles larsen sheet pile interlock each other connects, the outside of enclosure is provided with the anchor shaped steel of squeezing into underground the inboard of closed enclosure be provided with the steel pipe larsen sheet pile paste the shaped steel purlin of arranging, the shaped steel purlin with the anchor shaped steel passes through anchor rope fastening connection.
On the basis of the technical scheme, the application also comprises the following preferable scheme:
the steel pipe is provided with a plurality of precipitation filter sections which are distributed at intervals along the length direction of the steel pipe.
And the precipitation filtering section is formed by opening holes on the wall of the steel pipe and coating a filtering membrane.
And the profile steel purlin and the steel pipe Larsen sheet pile are welded and fixed.
One end of the anchor cable is fixedly connected with the anchoring section steel through a fastening nut, and the other end of the anchor cable is connected with the section steel surrounding purlin through a fastening nut.
The application has the following beneficial effects:
1. the construction principle is simple, and the operation is convenient;
2. the section steel, the stay cable and the enclosure pipe pile can be recycled;
3. no support is arranged in the foundation pit, so that the earth excavation is facilitated;
4. the dewatering process is not in conflict with other processes and can be carried out simultaneously;
5. the enclosure body is formed by adopting specially-made steel pipe Larsen sheet pile ring cloth, the structural integrity and the closure of the pile type enclosure body are improved by utilizing the mutual occlusion of Larsen sheet piles, meanwhile, the water is discharged outwards (with a precipitation function) by utilizing the steel pipe, the groundwater is prevented from largely permeating into the pit, and the precipitation filtering section is arranged on the steel pipe, so that the groundwater damage caused by the enclosure defect of the foundation pit can be compensated.
Drawings
The present application will be further described with reference to the following drawings and specific embodiments:
FIG. 1 is a schematic view of a steel pipe Larsen sheet pile precipitation enclosure in the embodiment of the application;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
wherein: 1-steel pipe Larsen sheet pile, 101-steel pipe, 101 a-precipitation filtering section, 102-Larsen steel sheet pile, profile steel purlin, 2-fastening nut, 3-anchoring profile steel, 4-anchor rope, 5-profile steel purlin, 6-foundation pit bottom surface and 7-ground.
Detailed Description
Fig. 1 to 3 show a preferred embodiment of the steel pipe larsen sheet pile precipitation enclosure of the present application, comprising a plurality of steel pipe larsen sheet piles 1 arranged around the perimeter side wall of the foundation pit, thereby forming a closed enclosure. Each steel pipe Larsen sheet pile 1 is composed of a steel pipe 101 and Larsen steel sheet piles 102 welded on two radial sides of the steel pipe in a one-to-two mode, and the Larsen steel sheet piles 102 on two adjacent steel pipe Larsen sheet piles 1 are connected in an occlusion mode. The outside of the aforesaid enclosure is provided with and squeezes into underground anchor shaped steel 3, is provided with the shaped steel purlin 5 that leans on the arrangement with steel pipe Larsen sheet pile 1 in the inboard of sealing the enclosure, and shaped steel purlin 5 passes through anchor rope 4 fastening connection with anchor shaped steel 3.
The "one-break two-weld" refers to a standard larsen steel sheet pile 102 that is split in the longitudinal direction thereof into two left and right parts, and the left half and the right half are welded to both sides of the steel pipe 101, respectively. As is well known, the left and right sides of the larsen steel sheet pile 102 are both the undercut edges with undercut structures, so that the left half and the right half obtained by dividing the larsen steel sheet pile into two parts (one for one) longitudinally have undercut structures. In the embodiment, the adjacent two steel pipe Larsen sheet piles 1 are mutually meshed and connected by utilizing the meshing structure arranged on the steel pipe Larsen sheet piles 1.
The Larsen sheet pile 1 of steel pipe that constitutes the enclosure in this embodiment adopts the integrated configuration of tubular pile + Larsen steel sheet pile to utilize Larsen steel sheet pile from the mutual interlock in seam in area to connect, utilize the mutual interlock of Larsen steel sheet pile in order to promote the structural integrity of pile formula enclosure and to the barrier nature of silt fluid matter soil, usable tubular pile is outwards discharged again, prevents that groundwater from permeating in the hole in a large number.
In addition, in this embodiment, a plurality of precipitation filter sections 101a distributed at intervals along the length direction (that is, the longitudinal direction) of the steel pipe are arranged on the steel pipe 101 of a selected part of the steel pipe larsen sheet piles 1 at intervals, and specifically, the precipitation filter sections 101a on the steel pipe 101 are arranged in a longitudinal sectional manner according to the earth excavation depth, so that the drainability and strength of the steel pipe provided with the filter sections are ensured.
The precipitation filter segment 101a is formed by perforating the wall of the steel pipe 101 and coating the filter membrane.
In order to increase the connection strength of the steel pipe Larsen sheet piles 1 and improve the integrity of the enclosure, the steel section purlin 5 and the steel pipe Larsen sheet piles 1 are generally welded and fixed.
The anchor cable 4 is connected with the anchoring section steel 3 and the section steel purlin 5 through a fastening nut 2, and specifically comprises the following steps: one end of the anchor cable 4 is fixedly connected with the anchoring section steel 3 through the fastening nut 2, and the other end of the anchor cable is connected with the section steel surrounding purlin 5 through the other fastening nut 2. It will be appreciated that tightening the nut 2 facilitates applying a pre-tightening force to the cable bolt 4.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present application, and the present application is not limited thereto. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.
Claims (5)
1. The steel pipe larsen sheet pile precipitation enclosure structure is characterized by comprising a plurality of steel pipe larsen sheet piles (1) which are arranged at the peripheral side wall of a foundation pit in a surrounding mode to form a closed enclosure body, each steel pipe larsen sheet pile (1) is formed by welding a steel pipe (101) and one broken steel pipe to larsen sheet piles (102) on the two radial sides of the steel pipe, the larsen sheet piles (102) on the two adjacent steel pipe larsen sheet piles (1) are mutually meshed and connected, anchoring section steel (3) driven into the ground are arranged on the outer side of the enclosure body, section steel purlins (5) which are arranged by being attached to the steel pipe larsen sheet piles (1) are arranged on the inner side of the closed enclosure body, and the section steel purlins (5) are fixedly connected with the anchoring section steel (3) through anchor cables (4).
2. The steel pipe Larsen sheet pile precipitation envelope structure according to claim 1, wherein a plurality of precipitation filtering sections (101a) are arranged on the steel pipe (101) at intervals along the length direction of the steel pipe.
3. A steel pipe larsen sheet pile precipitation envelope as claimed in claim 2, wherein the precipitation filter section (101a) is formed by perforating the steel pipe (101) wall and coating with a filter membrane.
4. The steel pipe Larsen sheet pile dewatering envelope structure according to claim 1, wherein the section steel purlin (5) and the steel pipe Larsen sheet pile (1) are welded and fixed.
5. The steel pipe Larsen sheet pile precipitation enclosure structure of claim 1, wherein one end of the anchor cable (4) is fixedly connected with the anchoring section steel (3) through a fastening nut (2), and the other end is connected with the section steel purlin (5) through the fastening nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174818.3U CN209837041U (en) | 2019-01-31 | 2019-01-31 | Steel pipe larsen sheet pile precipitation enclosure structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174818.3U CN209837041U (en) | 2019-01-31 | 2019-01-31 | Steel pipe larsen sheet pile precipitation enclosure structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209837041U true CN209837041U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920174818.3U Expired - Fee Related CN209837041U (en) | 2019-01-31 | 2019-01-31 | Steel pipe larsen sheet pile precipitation enclosure structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209837041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610476A (en) * | 2019-01-31 | 2019-04-12 | 上海宝钢工程咨询有限公司 | Steel pipe Larsen sheet pile precipitation building enclosure |
-
2019
- 2019-01-31 CN CN201920174818.3U patent/CN209837041U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610476A (en) * | 2019-01-31 | 2019-04-12 | 上海宝钢工程咨询有限公司 | Steel pipe Larsen sheet pile precipitation building enclosure |
| CN109610476B (en) * | 2019-01-31 | 2024-05-17 | 上海宝钢工程咨询有限公司 | Steel pipe Larson sheet pile precipitation building envelope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |