CN203905032U - Large pond cutting protection structure - Google Patents
Large pond cutting protection structure Download PDFInfo
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- CN203905032U CN203905032U CN201420225657.3U CN201420225657U CN203905032U CN 203905032 U CN203905032 U CN 203905032U CN 201420225657 U CN201420225657 U CN 201420225657U CN 203905032 U CN203905032 U CN 203905032U
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Abstract
The utility model discloses a large pond cutting protection structure which comprises a water retaining mound arranged on a pond cutting, a temporary cofferdam is arranged between the water retaining mound and a pond, a water isolation curtain is arranged between the temporary cofferdam and the water retaining mound, and a concrete anti-seepage wall is arranged in a base fit on the water retaining mound. According to the protection structure, the temporary cofferdam, the water isolation curtain and the concrete anti-seepage wall are added between the water retaining mound and the pond to completely remove hidden hazards that water seepage softens and affects a slope. The protection structure has been applied to protection of the pond cutting in the passenger railway line from Shijiazhuang to Wuhan. After the protection structure is built, the slope is kept dry without seepage water, and the passenger railway line is well in operation condition, stable in slope and good in operation safety and has direct obvious social benefit and economical benefit after being open to traffic one year ago under the test of a plurality of rainy seasons and heavy rainfall.
Description
Technical field
The utility model relates to subgrade protection field, pool, is specially the safeguard structure of a kind of relatively large pool cutting.
Background technology
Engineering practice shows, water is the main reason of bringing out subgrade defect, and roadbed side slope seeps water for a long time and can reduce side slope intensity, causes side slope and slips and collapse, even cave in, and threatens the operation securities such as railway and highway.
In mountain area and location with a varied topography, cutting top may be distributed with relatively large pool, because pool scale is large, general abolishment difficult treatment and being difficult to carry out, traditional establishing twisted with the fingers dash processing and cannot be avoided the larger hydraulic pressure in large pool and enrich under water yield supply, oozing softening harm side slope.
Utility model content
The purpose of this utility model is to provide a kind of and can prevent the safeguard structure of pool to the relatively large pool cutting of the infiltration of side slope in order to overcome above-mentioned deficiency.
The utility model comprises the dash sth. made by twisting being located on the cutting of pool, and described dash is twisted with the fingers between pool and is provided with Temporary Cofferdam, and described Temporary Cofferdam and dash are provided with water seal curtain between twisting with the fingers, and in the foundation ditch on described water seal curtain, are provided with concrete cut.
The safeguard structure the utility model proposes is by twisting with the fingers between pool and set up Temporary Cofferdam, water seal curtain and concrete cut at dash, thoroughly solve the softening hidden danger that affects side slope of side slope seepage, be applied to the protection of the military Line for Passenger Transportation of stone pool cutting, domatic keeping dry without infiltration after completing, experience the test of multiple rainy seasons and heavy showers, be open to traffic that present situation is good one year over, stability of slope, thereby ensured stability of slope and operation security, social benefit and economic benefit are directly obvious.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Further illustrate the utility model below in conjunction with drawings and Examples.
Embodiment: the utility model comprises the dash sth. made by twisting 1 being located on pool cutting 10, between described dash sth. made by twisting 1 and pool 2, be provided with Temporary Cofferdam 3, described Temporary Cofferdam 3 and dash are provided with water seal curtain 4 between twisting with the fingers 1, in the foundation ditch on described water seal curtain 4, are provided with concrete cut 5.Described concrete cut 5 bottoms are provided with slabstone layer of concrete 6 to above 5 meters of scope foundation ditches, and described slabstone layer of concrete 6 tops are provided with clay layer 7.Described dash is twisted with the fingers 1 top and is provided with green layer 8, and the side slope that described dash is twisted with the fingers 1 both sides is provided with slabstone bank protection 9.In the side slope of described pool cutting 10, be provided with concrete guard wall 11.
Construction sequence is as follows: (1) moat top outside arranges Temporary Cofferdam 3 in pool, and between cofferdam to moat top, mud at the bottom of the pool is drained, removed to pool water.(2) water seal curtain slip casting processing is carried out in the medium stratum of permeability, injected hole vertical, horizontal spacing is 0.8～1.1m, and arranged in squares is arranged 6～10 rows, and reinforcement depth is through the medium stratum of permeability each 1m up and down.(3) excavation impervious wall foundation ditch ratio of slope 1:0.2～0.5, foundation ditch both sides arrange provisional protection, and the interim side slope of constructing adopts 1.5 meters of spacing, long 4 meters of anchor poles to carry out provisional protection, and 50 millimeters of anchor hole diameter of phi, establish 1 22 mm H RB335 reinforcing bar in hole; Build cut-off wall concrete, 0.8～1.2 meter of wall thickness, the degree of depth from ground through permeability doughtily layer below 1 meter, to form overlapping overlap joint with water seal curtain 3, concrete cut 5 adopts the above concrete of C30 level, employing is not less than portland cement or the Portland cement of 42.5 grades, impervious grade is not less than P12, and freeze proof grade is not less than F300, limits maximum water/binder ratio 0.45～0.50:1, concrete gel material content is not less than 350 kilograms/cubic metre, and sand coarse aggregate ratio is not less than 40%; At the bottom of impervious wall, to the concrete backfill of above 5 meters of scope foundation ditches employing low grade slabstone, more than 5 meters foundation ditch layering is rammed and is filled out the clay that water-resisting property is good, and compacting requirement coefficient of subgrade reaction K30 is not less than 90 MPa/rice, and coefficient of consolidation is not less than 0.91.(4) dash is twisted with the fingers 1 layering rammer and is filled out the clay that water-resisting property is good, and 5～8 meters of top widths, twist with the fingers top green grass, and right side side slope adopts mortar flag stone to pave protection, ratio of slope 1:1.75～2.(5) cut slope arranges concrete guard wall 11 closing slopes, and wall top arranges mortar flag stone and paves protection, slope gradient 1:1.5～1.75.
Relatively large pool is abolished difficult treatment and is difficult to carry out, traditional sth. made by twisting dash of establishing is difficult to solve the problem of pool infiltration, the safeguard structure that this patent proposes is thoroughly eliminated the hidden danger of side slope seepage and is avoided the harm of slope ground body because of water softening strength decreased, has ensured the safe operation of the stable and railway of side slope.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (5)
1. the safeguard structure of a relatively large pool cutting, comprise the dash sth. made by twisting (1) being located on pool cutting (10), it is characterized in that: described dash is twisted with the fingers between (1) and pool (2) and is provided with Temporary Cofferdam (3), described Temporary Cofferdam (3) and dash are twisted with the fingers between (1) and are provided with water seal curtain (4), are provided with concrete cut (5) in the foundation ditch on described water seal curtain (4).
2. the safeguard structure of relatively large pool according to claim 1 cutting, it is characterized in that described concrete cut (5) bottom is provided with slabstone layer of concrete (6) to above 5 meters of scope foundation ditches, described slabstone layer of concrete (6) top is provided with clay layer (7).
3. the safeguard structure of relatively large pool according to claim 1 and 2 cutting, is characterized in that described dash sth. made by twisting (1) top is provided with green layer (8).
4. the safeguard structure of relatively large pool according to claim 1 and 2 cutting, is characterized in that the side slope of described dash sth. made by twisting (1) both sides is provided with slabstone bank protection (9).
5. the safeguard structure of relatively large pool according to claim 1 and 2 cutting, is characterized in that being provided with concrete guard wall (11) in the side slope of described pool cutting (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225657.3U CN203905032U (en) | 2014-05-05 | 2014-05-05 | Large pond cutting protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225657.3U CN203905032U (en) | 2014-05-05 | 2014-05-05 | Large pond cutting protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905032U true CN203905032U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420225657.3U Active CN203905032U (en) | 2014-05-05 | 2014-05-05 | Large pond cutting protection structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203905032U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040714A (en) * | 2015-07-08 | 2015-11-11 | 成都绿迪科技有限公司 | Seepage-preventing cofferdam |
| CN105908764A (en) * | 2016-06-02 | 2016-08-31 | 中铁隧道集团二处有限公司 | Impervious system with plastic concrete impervious wall combined to reinforced concrete retaining wall |
| CN115748345A (en) * | 2022-12-02 | 2023-03-07 | 中交一公局第一工程有限公司 | Construction method suitable for widening roadbed in adjacent pond section |
-
2014
- 2014-05-05 CN CN201420225657.3U patent/CN203905032U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040714A (en) * | 2015-07-08 | 2015-11-11 | 成都绿迪科技有限公司 | Seepage-preventing cofferdam |
| CN105908764A (en) * | 2016-06-02 | 2016-08-31 | 中铁隧道集团二处有限公司 | Impervious system with plastic concrete impervious wall combined to reinforced concrete retaining wall |
| CN105908764B (en) * | 2016-06-02 | 2017-12-26 | 中铁隧道集团二处有限公司 | The seepage control system that plastic concrete cut-off wall and Reinforced Concrete Retaining Walls are combined |
| CN115748345A (en) * | 2022-12-02 | 2023-03-07 | 中交一公局第一工程有限公司 | Construction method suitable for widening roadbed in adjacent pond section |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |