CN208279958U - A kind of saturation high-fill roadbed structure - Google Patents
A kind of saturation high-fill roadbed structure Download PDFInfo
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- CN208279958U CN208279958U CN201820843365.4U CN201820843365U CN208279958U CN 208279958 U CN208279958 U CN 208279958U CN 201820843365 U CN201820843365 U CN 201820843365U CN 208279958 U CN208279958 U CN 208279958U
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- roadbed structure
- saturation high
- structure according
- fill roadbed
- core wall
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Abstract
The utility model discloses a kind of saturation high-fill roadbed structure, the foundation trench including being set to roadbed bottom, the bottom of foundation trench is to having several consolidation grouting holes；Pedestal is equipped in the foundation trench, across pedestal to having several grout curtain holes；The top of the pedestal is equipped with clay core wall, and the surface of clay core wall is successively arranged anti-filter geotextiles and sand bedding course from inside to outside；The two sides and top of the clay core wall are equipped with rockfill area, and the top of rockfill area is equipped with native stone back filled region.The characteristics of roadbed of the utility model production has survivable, and the service life is long, at low cost, can be to avoid settlement of subgrade.
Description
Technical field
The utility model relates to a kind of road structure, especially a kind of saturation high-fill roadbed structure.
Background technique
Saturation high-fill roadbed refers to that road foundation is on the verge of river and lake, and roadbed is to meet flood control level and need to carry out high roadbed to set
Meter.When design saturation high-fill roadbed, infiltration, fluctuation in stage, wave invasion, current scour and underground water Yong Sheng should be fully considered
Caused influence of collapsibility.Being directed to the saturation roadbed antiseepage of reservoir location, presently, there are several administration ways: 1) antiseepage film process；2)
The processing of armored concrete panel surface；3) grout curtain.The processing mode 1) and 2) is suitable for surface layer antiseepage, is easy to destroy,
Antiseepage film service life is lower；The 3) processing mode be suitable for cut subgrade antiseepage.And how to guarantee impervious body and be located at the side that borders on the river
It is neither easy to destroy, and it is easy for construction to be able to satisfy embankment, can also reduce settlement of subgrade is that a urgent need solves
The problem of.
Utility model content
The purpose of the utility model is to provide a kind of saturation high-fill roadbed structures.The utility model has not fragile
The characteristics of bad, the service life is long, at low cost, can be to avoid settlement of subgrade.
The technical solution of the utility model includes: a kind of saturation high-fill roadbed structure, the foundation trench including being set to roadbed bottom, base
The bottom of slot is to having several consolidation grouting holes；It is equipped with pedestal in the foundation trench, is filled across pedestal to several curtains are had
Starch hole；The top of the pedestal is equipped with clay core wall, and the surface of clay core wall is successively arranged anti-filter geotextiles and sand from inside to outside
Bed course；The two sides and top of the clay core wall are equipped with rockfill area, and the top of rockfill area is equipped with native stone back filled region.
Saturation high-fill roadbed structure above-mentioned, the rectangular distribution in consolidation grouting hole, the line-spacing in consolidation grouting hole and
Array pitch is 1-3m.
Saturation high-fill roadbed structure above-mentioned, the line-spacing and array pitch in the consolidation grouting hole are 2m.
Saturation high-fill roadbed structure above-mentioned, the grout curtain hole is single row of holes, between adjacent grout curtain hole
Spacing is 0.5-1.5m.
Saturation high-fill roadbed structure above-mentioned, the spacing between the adjacent grout curtain hole are 1m.
Saturation high-fill roadbed structure above-mentioned, the section of the clay core wall are trapezoidal.
Saturation high-fill roadbed structure above-mentioned, the section of the rockfill area is trapezoidal, the exposed side in rockfill area
It is equipped with dry stone pitching layer.
Multilayer TGXG is equipped in saturation high-fill roadbed structure above-mentioned, the rockfill area and native stone back filled region.
Saturation high-fill roadbed structure above-mentioned, the interlamellar spacing between the adjacent TGXG are 1-3m.
Saturation high-fill roadbed structure above-mentioned, the interlamellar spacing between the adjacent TGXG are 2m.
The beneficial effects of the utility model
Grout hole is arranged by setting sandstone area and clay core wall in the utility model, and the road structure of formation is more firm
Gu it is survivable, substantially prolong service life；Meanwhile the materials such as clay needed for the utility model can be applied by periphery
Working hour, which excavates, to be obtained, and can be saved construction investment, be improved stock utilization, reduce the waste of resource, greatly reduce and be constructed into
This；Also, the utility model passes through the tensile property group of anti-permeability performance and TGXG using clay core wall and seepage proof curtain
At composite system, reduce unilateral lake body water pressure to the adverse effect of roadbed, avoid the uneven heavy of high-fill roadbed
Drop.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model；
Description of symbols: 1- consolidation grouting hole, 2- grout curtain hole, 3- clay core wall, 4- anti-filter geotextiles, 5- sand pad
Layer, the rockfill area 6-, 7- dry stone pitching layer, 8- TGXG, 9- soil stone back filled region, 10- pedestal, 11- foundation trench.
Specific embodiment
The utility model is further described below with reference to embodiment, but is not intended as to the utility model limitation
Foundation.
The embodiments of the present invention
A kind of saturation high-fill roadbed structure, as shown in Fig. 1, the foundation trench 11 including being set to roadbed bottom, foundation trench 11
Bottom is to having several consolidation grouting holes 1；Pedestal 10 is equipped in the foundation trench 11, across pedestal 10 to having several curtains
Grout hole 2；The top of the pedestal 10 is equipped with clay core wall 3, and the surface of clay core wall 3 is successively arranged anti-filter geotechnique from inside to outside
Cloth 4 and sand bedding course 5；The two sides and top of the clay core wall 3 are equipped with rockfill area 6, and the top of rockfill area 6 is equipped with native stone back filled region
9。
The rectangular distribution in the consolidation grouting hole 1, the line-spacing and array pitch in consolidation grouting hole 1 are 1-3m.
The line-spacing and array pitch in the consolidation grouting hole 1 are 2m.
The grout curtain hole 2 is single row of holes, and the spacing between adjacent grout curtain hole 2 is 0.5-1.5m.
Spacing between the adjacent grout curtain hole 2 is 1m.
The section of the clay core wall 3 is trapezoidal.
The section of the rockfill area 6 is trapezoidal, and the exposed side in rockfill area 6 is equipped with dry stone pitching layer 7.
Multilayer TGXG 8 is equipped in the rockfill area 6 and native stone back filled region 9.
Interlamellar spacing between the adjacent TGXG 8 is 1-3m.
Interlamellar spacing between the adjacent TGXG 8 is 2m.
Its construction method is as follows:
1) foundation trench 11 is excavated in roadbed bottom, then bores several consolidation grouting holes 1 downwards in 11 bottom of foundation trench, and consolidating
Grouting in grout hole 1；
2) it pours to form pedestal 10 in foundation trench 11 after grouting in consolidation grouting hole 1, pedestal 10 passes through base after solidifying
Seat 10 bores downwards several grout curtain holes 2, and is in the milk in grout curtain hole 2；
3) in grout curtain hole 2 after the completion of grouting, the trapezoidal clay core wall 3 in section is made in the top of pedestal 10,
The surface of clay core wall 3 sets gradually anti-filter geotextiles 4 and sand bedding course 5 from inside to outside；
4) rockfill area 6 trapezoidal in the two sides of clay core wall 3 and top accumulation sandstone Formation cross-section, rockfill area 6 are exposed
Side outside is equipped with dry stone pitching layer 7, then backfills to form native stone back filled region 9 i.e. with native stone in the top of rockfill area 6
It can；Multilayer TGXG 8 is equipped in the rockfill area 6 and native stone back filled region 9.
Claims (10)
1. a kind of saturation high-fill roadbed structure, it is characterised in that: the foundation trench (11) including being set to roadbed bottom, foundation trench (11)
Bottom is to having several consolidation grouting holes (1)；Pedestal (10) are equipped in the foundation trench (11), pass through pedestal (10) to having
Several grout curtain holes (2)；The top of the pedestal (10) is equipped with clay core wall (3), and the surface of clay core wall (3) is from inside to outside
It is successively arranged anti-filter geotextiles (4) and sand bedding course (5)；The two sides and top of the clay core wall (3) are equipped with rockfill area (6), heap
The top in stone area (6) is equipped with native stone back filled region (9).
2. saturation high-fill roadbed structure according to claim 1, it is characterised in that: the consolidation grouting hole (1) is at square
Shape distribution, the line-spacing and array pitch of consolidation grouting hole (1) are 1-3m.
3. saturation high-fill roadbed structure according to claim 2, it is characterised in that: the row of the consolidation grouting hole (1)
Away from being 2m with array pitch.
4. saturation high-fill roadbed structure according to claim 1, it is characterised in that: the grout curtain hole (2) is single
Round, the spacing between adjacent grout curtain hole (2) are 0.5-1.5m.
5. saturation high-fill roadbed structure according to claim 4, it is characterised in that: the adjacent grout curtain hole (2)
Between spacing be 1m.
6. saturation high-fill roadbed structure according to claim 1, it is characterised in that: the section of the clay core wall (3)
It is trapezoidal.
7. saturation high-fill roadbed structure according to claim 1, it is characterised in that: the section of the rockfill area (6) is in
Trapezoidal, rockfill area (6) exposed side is equipped with dry stone pitching layer (7).
8. saturation high-fill roadbed structure according to claim 1, it is characterised in that: the rockfill area (6) and native stone return
It fills out in area (9) and is equipped with multilayer TGXG (8).
9. saturation high-fill roadbed structure according to claim 8, it is characterised in that: the adjacent TGXG (8) it
Between interlamellar spacing be 1-3m.
10. saturation high-fill roadbed structure according to claim 9, it is characterised in that: the adjacent TGXG (8) it
Between interlamellar spacing be 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820843365.4U CN208279958U (en) | 2018-06-01 | 2018-06-01 | A kind of saturation high-fill roadbed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820843365.4U CN208279958U (en) | 2018-06-01 | 2018-06-01 | A kind of saturation high-fill roadbed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208279958U true CN208279958U (en) | 2018-12-25 |
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ID=64706574
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820843365.4U Active CN208279958U (en) | 2018-06-01 | 2018-06-01 | A kind of saturation high-fill roadbed structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611941A (en) * | 2018-06-01 | 2018-10-02 | 中国电建集团贵阳勘测设计研究院有限公司 | A method of for being saturated high-fill roadbed processing |
-
2018
- 2018-06-01 CN CN201820843365.4U patent/CN208279958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611941A (en) * | 2018-06-01 | 2018-10-02 | 中国电建集团贵阳勘测设计研究院有限公司 | A method of for being saturated high-fill roadbed processing |
| CN108611941B (en) * | 2018-06-01 | 2023-08-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for processing saturated high-fill roadbed |
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