CN220117233U - Submarine foundation trench silt blocking wall structure - Google Patents
Submarine foundation trench silt blocking wall structure Download PDFInfo
- Publication number
- CN220117233U CN220117233U CN202320796059.0U CN202320796059U CN220117233U CN 220117233 U CN220117233 U CN 220117233U CN 202320796059 U CN202320796059 U CN 202320796059U CN 220117233 U CN220117233 U CN 220117233U
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- CN
- China
- Prior art keywords
- fine material
- foundation trench
- stone
- wall structure
- blocking wall
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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.)
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Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000004575 stone Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 8
- 239000004746 geotextile Substances 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Revetment (AREA)
Abstract
A silt blocking wall structure of a submarine foundation trench is characterized in that stone is thrown on two sides of the immersed tube foundation trench, a layer of middle fine material is thrown on one side, far away from the immersed tube foundation trench, of a slope surface of the stone and the middle fine material, two layers of geotechnical cloth are paved on the top surface of the stone and the middle fine material, sand bags are pressed on the geotechnical cloth on the tops of the stone and the middle fine material, and a layer of sea side fine material is covered on the geotechnical cloth on the slope surface of the middle fine material close to the sea side. The utility model ensures the excavation quality of the foundation trench and reduces the cost expenditure by forming the submarine silt blocking structure, technically avoids the generation of the silt back condition, ensures the excavation and gravel leveling quality of the immersed tube foundation trench, improves the installation progress of the immersed tube of the submarine tunnel and meets the design index requirement.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a submarine foundation trench silt blocking wall structure.
Background
The submarine tunnel construction engineering immersed tube installation engineering needs to carry out foundation trench excavation before the immersed tube installation during construction, and because of foundation trench peripheral ocean current surges, there is silt in peripheral sea area, because of the foundation trench excavation time is longer, and the position is lower after the foundation trench excavation, and there is longer time interval with rubble foundation bed flattening, prefabricated structure installation, it is comparatively serious to lead to foundation trench bottom silt-falling condition, it is required to have exceeded the regulation and allowed the back siltation, the submarine silt-falling speed is greater than the desilting speed, and the submarine desilting construction degree of difficulty is big, the desilting cost is high, the delay time limit for a project.
Disclosure of Invention
The utility model provides a submarine foundation trench silt blocking wall structure for solving the problems.
The utility model adopts the technical scheme that:
a silt blocking wall structure of a submarine foundation trench is characterized in that stone is thrown on two sides of the immersed tube foundation trench, a layer of middle fine material is thrown on one side, far away from the immersed tube foundation trench, of a slope surface of the stone and the middle fine material, two layers of geotechnical cloth are paved on the top surface of the stone and the middle fine material, sand bags are pressed on the geotechnical cloth on the tops of the stone and the middle fine material, and a layer of sea side fine material is covered on the geotechnical cloth on the slope surface of the middle fine material close to the sea side.
The top width of the stone is 1.5m.
The laying overlap joint length of the two layers of geotextiles is 1m.
The top width of the middle fine material is 0.5m.
The thickness of the sea-side fine material is 1m.
The distance between sand bags on geotextile at the tops of the stones and the middle fine materials is 2m.
The slope gradient of the stone and the middle fine material is 2:1, and the height is 3m.
The utility model has the beneficial effects that: the utility model ensures the excavation quality of the foundation trench and reduces the cost expenditure by forming the submarine silt blocking structure, technically avoids the generation of the silt back condition, ensures the excavation and gravel leveling quality of the immersed tube foundation trench, improves the installation progress of the immersed tube of the submarine tunnel and meets the design index requirement.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is an enlarged schematic view of the structure of a silt blocking wall on one side of a foundation trench of a immersed tube according to the utility model.
Wherein: 1-subsea sludge; 2-geotextile; 3-sea side fines; 4-intermediate fines; 5-stone; 6-sand bags; 7-sinking pipe base tank.
Detailed Description
According to the inner friction angle of excavated stones 5, the thickness of seabed silt 1 and ocean current pressure, the slope gradient, width and height of the silt blocking wall are determined, the slope gradient is 2:1, the height is 3m, the top width is 3m, the silt blocking wall structure is constructed in a grading manner, stones 5 are thrown on two sides of a immersed tube foundation groove 7, the top width of each stone 5 is 1.5m, one side of each slope of each stone 5, far away from the immersed tube foundation groove 7, is thrown with one layer of middle fine material 4, the top width of each middle fine material 4 is 0.5m, divers perform slope trimming, slope flatness is guaranteed, the top surfaces of each stone 5 and each middle fine material 4, the slope surface of each middle fine material 4 and the bottom surface of each middle fine material 4 are paved with two layers of geotextile 2, the overlapping length is 1m, after geotextile 2 is paved, sand bags 6 are arranged on the geotextile 2 on the tops of each stone 5 and each middle fine material 4 in a pressing manner, the distance between each sand bag 6 is 2m, each geotextile 2 of each middle fine material 4 is covered with one layer of sea side fine material 3 on the side of the slope surface, the sea side fine material 3 is blocked by the sea side fine material, and the silt blocking effect is guaranteed after the silt blocking construction is completed from the seabed foundation groove position, and the silt blocking effect is guaranteed.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (7)
1. The utility model provides a seabed foundation ditch silt blocking wall structure, a serial communication port, the building stones (5) are thrown to immersed tube foundation ditch (7) both sides, one deck intermediate fine material (4) are thrown to one side that immersed tube foundation ditch (7) was kept away from to the domatic stone (5), the top surface of building stones (5) and intermediate fine material (4), the domatic of intermediate fine material (4) and the bottom surface in the intermediate fine material (4) outside have laid two-layer geotechnique's cloth (2), the sand bag (6) have been put to the pressure on geotechnique's cloth (2) at building stones (5) and intermediate fine material (4) top, geotechnique's cloth (2) on the domatic of intermediate fine material (4) are leaned on the sea side to cover one deck sea side fine material (3).
2. The structure of a retaining wall for a foundation trench on the sea floor according to claim 1, characterized in that the roof width of the stone (5) is 1.5m.
3. The submarine foundation trench silt blocking wall structure according to claim 1, characterized in that the overlapping length of two layers of geotextiles (2) is 1m.
4. The submarine foundation trench silt blocking wall structure according to claim 1, characterized in that the top width of the middle fine material (4) is 0.5m.
5. The seabed foundation trench silt blocking wall structure according to claim 1, wherein the thickness of the sea side fine material (3) is 1m.
6. The seabed foundation trench silt blocking wall structure according to claim 1, wherein the distance between the sand bags (6) on the geotextile (2) on top of the stone (5) and the middle fine material (4) is 2m.
7. The submarine foundation trench silt blocking wall structure according to claim 1, characterized in that the slope gradient of the stone (5) and the intermediate fines (4) is 2:1 and the height is 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796059.0U CN220117233U (en) | 2023-04-12 | 2023-04-12 | Submarine foundation trench silt blocking wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796059.0U CN220117233U (en) | 2023-04-12 | 2023-04-12 | Submarine foundation trench silt blocking wall structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220117233U true CN220117233U (en) | 2023-12-01 |
Family
ID=88916767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320796059.0U Active CN220117233U (en) | 2023-04-12 | 2023-04-12 | Submarine foundation trench silt blocking wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220117233U (en) |
-
2023
- 2023-04-12 CN CN202320796059.0U patent/CN220117233U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |