CN203583304U - Carbonate rock filling foundation stagnant water structure - Google Patents
Carbonate rock filling foundation stagnant water structure Download PDFInfo
- Publication number
- CN203583304U CN203583304U CN201320726764.XU CN201320726764U CN203583304U CN 203583304 U CN203583304 U CN 203583304U CN 201320726764 U CN201320726764 U CN 201320726764U CN 203583304 U CN203583304 U CN 203583304U
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- China
- Prior art keywords
- carbonate rock
- stagnant water
- rock filling
- foundation
- filling foundation
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Abstract
The utility model discloses a carbonate rock filling foundation stagnant water structure. The carbonate rock filling foundation stagnant water structure comprises a carbonate rock filling foundation (1), wherein the upper surface of the carbonate rock filling foundation (1) is provided with a stagnant water layer (2), the upper surface of the stagnant water layer (2) is provided with a hardened layer (3), the thickness of the stagnant water layer (2) is 0.5-3.0 meters, and the thickness of the hardened layer (3) is 0.3-0.5 meter. An arrangement method of the carbonate rock filling foundation stagnant water structure comprises the following steps: I, carrying out tamping and rolling treatment on the carbonate rock filling foundation (1); II, laying clay on the surface of the carbonate rock filling foundation (1) subjected to the tamping and rolling treatment in a layering manner, and after finishing the laying of each layer of clay, flatly rolling by adopting a road roller till the thickness of each layer of clay reaches 0.3-1.5 meters; and III, laying natural-grading hard rocks on the laid stagnant water layer (2), wherein the thickness of the natural-grading hard rocks is 0.3-0.5 meter, and forming the hardened layer (3) by rolling the natural-grading hard rocks. The carbonate rock filling foundation stagnant water structure is used for solving the problem that the instability of the carbonate rock filling foundation is caused by long-term immersion and erosion of the carbonate rock filling foundation in rainwater.
Description
Technical field
The utility model belongs to carbonate rock fill foundation backwater waterproof technique, relates in particular to a kind of carbonate rock fill foundation backwater structure.
Background technology
Carbonate rock is distributed widely in western China, this area important feature be that landforms height fluctuations is large, urban construction, industrial land are all restricted to a great extent, therefore there will be large-scale earthwork evacuation and backfill, form boulder high fill foundation, these foundations very major part are comprised of soluble carbonate salt rock; West area is throughout the year in heavy showers period in addition, rainwater is very harmful to soluble carbonate salt rock, under carbonate rock ground maceration under long-term rain steeps and corrodes, foundation stability can be affected, in order to prevent that carbonate ground is subject to rainwater invade bubble and corrode, conventionally adopt that french drain is set under carbonate rock ground carries out draining, but the geotextiles that lay on french drain top layer is adhered to by fine particle easily, affect the worry water effect of geotextiles, cause blind drainage effect bad.
Summary of the invention
The technical problems to be solved in the utility model: a kind of carbonate rock fill foundation backwater structure is provided, invades for a long time bubble and corrode in rainwater to solve carbonate rock fill foundation, cause the problems such as carbonate rock fill foundation stability is bad.
Utility model technical scheme:
A kind of carbonate rock fill foundation backwater structure, it comprises carbonate rock fill foundation, and carbonate rock fill foundation upper surface is aquitard, and aquitard upper surface is hardened layer, and the thickness of aquitard is 0.3m ~ 1.5m rice, the thickness of hardened layer is 0.3-0.5 rice.
The raw material of aquitard are clay.
Hardened layer raw material are natural grading hard rock, and rock particle diameter is not more than 300 millimeters, and clay content is not more than 5%, and compressive strength is not less than 30Mpa.
The utility model beneficial effect:
Clay has the advantages such as water permeability is weak, compacting rear stability is good, intensity is higher, capillarity is little, the utility model utility model is utilized this feature of clay, at rammer, grind on carbonate rock boulder fill foundation after treatment and lay such one deck clay as aquitard, for intercepting surface water and immersion and the erosion of natural rainfall to deep foundation, to reduce the impact of surface water on foundation stability; On aquitard top, be separately equipped with one deck boulder after treatment and ram stone roller body, this is hardened layer, and its effect is not from brush, run off by rainwater for protection aquitard clay on the one hand; On the other hand, clay there will be under external force muddy phenomenon, thereby affects the attractive in appearance of road surface after soaked by rainwater; Aquitard raw material clay is the natural soil body, can gather materials on the spot, and aboundresources, small investment, aquitard arranges simply, easy construction, and effectively backwater, greatly extend the application life of carbonate rock fill foundation, solved carbonate rock fill foundation and in rainwater, invaded for a long time bubble and corrode, caused the problems such as carbonate rock fill foundation stability is bad.
accompanying drawing explanation:
Fig. 1 is the utility model structural representation.
the specific embodiment:
A kind of carbonate rock fill foundation backwater structure, it comprises carbonate rock fill foundation 1, and carbonate rock fill foundation 1 upper surface is aquitard 2, and aquitard 2 upper surfaces are hardened layers 3, the thickness of aquitard 2 is 0.3m ~ 1.5m rice, and the thickness of hardened layer 3 is 0.3-0.5 rice.
The raw material of aquitard 2 are clay.
Hardened layer 3 raw material are natural grading hard rock, and rock particle diameter is not more than 300 millimeters, and clay content is not more than 5%, and compressive strength is not less than 30Mpa.
The method to set up of described carbonate rock fill foundation backwater structure, it comprises the steps:
Step 1, to carbonate rock fill foundation 1 ram grind process,
Step 2, ramming stone roller carbonate rock fill foundation 1 after treatment when laying to design height, on its surface, lay clay, clay adopts layering to lay, after every layer of laying, adopt the flat stone roller of road roller, its road roller is 25t, construction travel speed is no more than 2m/h, while rolling, take the superimposed overlap joint of itemize, each overlapping 1/4 ~ 1/2 muller, coefficient of consolidation is not less than 0.94, to guarantee effective backwater, until thickness reaches 0.3-1.5 rice, become aquitard 2, through aquitard after treatment like this, can effectively intercept surface water and immersion and the erosion of natural rainfall to deep foundation, to reduce the impact of surface water on foundation stability.
Step 3, on the aquitard 2 of laying completion, lay natural grading hard rock, rock particle diameter is not more than 300 millimeters, clay content is not more than 5%, compressive strength is not less than 30Mpa, laying depth is at 0.3-0.5 rice, after rolling processing, be hardened layer 3, roll to process and adopt 25t, construction travel speed is no more than 2m/h road roller vibroroller cmpacting, while rolling, take the superimposed overlap joint of itemize, each overlapping 1/4 ~ 1/2 muller, rolling number of times is not less than 8 times, the last average settlement amount that rolls for twice is not more than 10mm, through the utility model hardened layer 3 after treatment, playing protection aquitard clay not from brush, run off by rainwater, having solved clay is subject to, after rainwater immersion, to there will be under external force muddy phenomenon, thereby affect the problem attractive in appearance on road surface.
Claims (3)
1. a carbonate rock fill foundation backwater structure, it comprises carbonate rock fill foundation (1), it is characterized in that: carbonate rock fill foundation (1) upper surface is aquitard (2), aquitard (2) upper surface is hardened layer (3), the thickness of aquitard (2) is 0.3m ~ 1.5m rice, and the thickness of hardened layer (3) is 0.3-0.5 rice.
2. a kind of carbonate rock fill foundation backwater structure according to claim 1, is characterized in that: the raw material of aquitard (2) are clay.
3. a kind of carbonate rock fill foundation backwater structure according to claim 1, is characterized in that: hardened layer (3) raw material are natural grading hard rock, and rock particle diameter is not more than 300 millimeters, and clay content is not more than 5%, and compressive strength is not less than 30Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726764.XU CN203583304U (en) | 2013-11-18 | 2013-11-18 | Carbonate rock filling foundation stagnant water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726764.XU CN203583304U (en) | 2013-11-18 | 2013-11-18 | Carbonate rock filling foundation stagnant water structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203583304U true CN203583304U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726764.XU Expired - Fee Related CN203583304U (en) | 2013-11-18 | 2013-11-18 | Carbonate rock filling foundation stagnant water structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203583304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556556A (en) * | 2013-11-18 | 2014-02-05 | 贵州正业工程技术投资有限公司 | Backwater structure of carbonate rock fill foundation and setting method thereof |
-
2013
- 2013-11-18 CN CN201320726764.XU patent/CN203583304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556556A (en) * | 2013-11-18 | 2014-02-05 | 贵州正业工程技术投资有限公司 | Backwater structure of carbonate rock fill foundation and setting method thereof |
| CN103556556B (en) * | 2013-11-18 | 2015-12-02 | 贵州正业工程技术投资有限公司 | A kind of carbonate rock fill foundation backwater structure and method to set up thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Zhiping Inventor after: Zhang Jianlei Inventor after: Yuan Jiangwen Inventor after: Zhu Jun Inventor after: Luo Huijun Inventor before: Zhang Jianzhong Inventor before: Zhang Jianlei Inventor before: Yuan Jiangwen Inventor before: Zhu Jun Inventor before: Luo Huijun |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20181118 |