CN202466518U - Back pressure structure of soft soil foundation dam - Google Patents
Back pressure structure of soft soil foundation dam Download PDFInfo
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- CN202466518U CN202466518U CN 201220012910 CN201220012910U CN202466518U CN 202466518 U CN202466518 U CN 202466518U CN 201220012910 CN201220012910 CN 201220012910 CN 201220012910 U CN201220012910 U CN 201220012910U CN 202466518 U CN202466518 U CN 202466518U
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- dike
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- back pressure
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- 239000002689 soil Substances 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 abstract description 9
- 239000004576 sand Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 11
- 239000004575 stone Substances 0.000 description 10
- -1 silt Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 241001494508 Arundo donax Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 240000002044 Rhizophora apiculata Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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Abstract
The utility model relates to a back pressure structure of a soft soil foundation dam. The utility model relates to the back pressure structure of the dam. One side or two sides of a main dam are provided with sub dams, and each sub dam adopts a trapezoidal section or a triangular section. The back pressure structure is characterized in that a silt soil back pressure bam core is arranged between the main dam and the sub dams, and the distance between the main dam and the sub dams is 3-6 times of height of the main dam; the crest level of the sub dams is 0-0.5m higher than the crest level of the silt soil back pressure bam core, and the height of the sub dams and the silt soil back pressure bam core is not smaller than 1/3 of the height of the main dam and is not larger than 2/3 of the height of the main dam; and the sub dams and the silt soil back pressure bam core are combined to form a main dam back pressure structure. The back pressure structure is suitable for soft soil foundation dam construction.
Description
Technical field
The utility model relates to dykes and dams back-pressure structure.
Background technology
On soft foundations such as mud, mucky soil, fill dykes and dams; Like sea wall, seawall, sea retaining, flood control dike, embankment, cofferdam, grey storehouse embankment, reservoir embankment, draw dike, embankment, roadbed, sea-going road, shore protection etc.; For keeping the dykes and dams monolithic stability; Except carrying out treatment of soft foundation, generally the back-pressure structure is adopted in one or both sides inside and outside dykes and dams, utilizes the stability of the weight raising dykes and dams of back-pressure structure.The back-pressure structure adopts and to banket, jackstone, packed sand, hydraulic fill sand, backfill sand, needs cohesive soil, silt, sand material, the building stones of labor, and the back-pressure structure that influenced by water level can only adopt jackstone, packed sand+hydraulic fill sand.Now earth material, sand material, building stones resource are more and more rare, the supply growing tension, and unit price also rises steadily, and has not only improved the dam construction cost greatly, and has seriously restricted the construction progress of dam construction.
Summary of the invention
The utility model provides a kind of back-pressure structure of soft foundation dykes and dams for solving earth material, sand material, problem that building stones are rare.
The technical scheme of the utility model is in the main dike one or both sides small dike to be set; The small dike adopts trapezoidal cross-section or triangular section; It is characterized in that between main dike and small dike, having the mud property soil back-pressure dike heart; Distance between main dike and the small dike is 3 ~ 6 times of main dike height; Small dike's crest level is higher than mud property soil back-pressure dike heart crest level 0 ~ 0.5m, the height of the small dike and the mud property soil back-pressure dike heart be not less than the main dike height 1/3 and be not more than 2/3 of main dike height, the native back-pressure dike of small dike and the mud property heart is combined to form main dike back-pressure structure.
The technique effect of the utility model is can be in the area of many mud property soil; Adopt blowing-filling sludge property soil to substitute cohesive soil, silt, sand material, building stones as the back-pressure dike heart; Can reach the effect of back-pressure, can realize gathering materials on the spot simultaneously, significantly reduce cohesive soil, silt, sand material, building stones consumption; Thereby significantly reduce the dependence of dam construction, practice thrift cohesive soil, silt, sand material, building stones resource cohesive soil, silt, sand material, building stones.When the small dike adopts combined type tubulose filling bag (CN201095741Y) simultaneously, can further reduce cohesive soil, silt, sand material, building stones consumption.When the mud property soil back-pressure dike heart adopts the hydraulic reclamation mode to construct, can be in full swing, not rely on land transportation and water transportation, not rely on the traffic ability of main dike, speed of application is fast, and efficiency of construction is high, and construction cost is low.The utility model is applicable to the dam construction of soft foundation; Comprise sea wall, seawall, sea retaining, flood control dike, embankment, cofferdam, grey storehouse embankment, reservoir embankment, draw dike, embankment, roadbed, sea-going road, shore protection etc., be specially adapted to not receive the dam construction of soft foundation under the wave action condition.
Description of drawings
Fig. 1 is the utility model embodiment one section structure sketch map.
Fig. 2 is the utility model embodiment two section structure sketch mapes.
Fig. 3 is the utility model embodiment three section structure sketch mapes.
The specific embodiment
There is mud property soil associating small dike's dykes and dams back-pressure structure embodiment one, both sides:
Referring to Fig. 1; Main dike 3 inside and outside both sides at dykes and dams are provided with small dike 1 respectively, and the distance between main dike 3 and the small dike 1 is 3 ~ 6 times of main dike height, and small dike 1 adopts trapezoidal cross-section or triangular section; The mud property soil back-pressure dike heart 2 is set between main dike 3 and small dike 1; The height of small dike and the mud property soil back-pressure dike heart be not less than the main dike height 1/3 and be not more than 2/3 of main dike height, the mud property soil back-pressure dike heart 2 crest levels are no more than small dike 1 crest level, small dike's crest level generally is higher than mud property soil back-pressure dike heart crest level 0 ~ 0.5m; The mud property soil back-pressure dike heart 2 adopts hydraulic reclamation or back-filling way to form; Small dike 1 is combined to form the back-pressure structure with the mud property soil back-pressure dike heart 2, and main dike 3 is formed back-pressure, improves the stability of main dike 3.Said mud property soil adopts stream mud, mud, mud to mix one or more mixing of mud property soil such as sand, silt clay, mud matter silty clay; Further curing compound such as admixture cement, lime, or adulterating agents such as rough sand, fine sand, silty sand, silt, silty clay, clay, flyash, oxidant in the admixture.Small dike 1 adopts combined type tubulose filling bag (CN 201095741Y); Also can adopt jackstone (containing the stone that cuts into a mountain, mountain skin stone, the slag of delaying, pool slag etc.) structure, packed husky structure, can adopt (containing plain fill, the mountain skin soil) structure of banketing for the small dike who not influenced by water level.Said mud property Tu Fanyadi plants the unrestrained plants that disappear such as reed, giantreed, mangrove in the heart, to reduce the wave in main dike the place ahead.But the utility model Joint Implementation ground is handled, to satisfy the main dike stability requirement.
Embodiment two, one side mud property soil associating small dike's dykes and dams back-pressure structure: referring to Fig. 2; Main dike 3 one sides at dykes and dams are provided with small dike 1; The mud property soil back-pressure dike heart 2 is set between main dike 3 and small dike 1; Small dike 1 is combined to form the back-pressure structure with the mud property soil back-pressure dike heart 2, and main dike 3 one sides are formed back-pressure.Opposite side at the main dike 3 of dykes and dams utilizes barged-in fill 7 as the back-pressure structure, and main dike 3 opposite sides are formed back-pressure.
Embodiment three, two-stage mud property soil associating two-stage small dike's two-stage back-pressure structure:
Referring to Fig. 3; When big or soft foundation 4 is very weak when main dike 3 height; Adopt two-stage small dike and the two-stage mud property soil back-pressure dike heart to be combined to form two-stage back-pressure structure; Improve 3 stability of main dike: promptly back of the body main dike 3 sides small dike 1 are provided with second level small dike 5; The second level mud property soil back-pressure dike heart 6 is set between small dike 1 and second level small dike 5, and second level small dike 5 is combined to form second level back-pressure structure with the second level mud property soil back-pressure dike heart 6, thereby forms the two-stage back-pressure structure that is combined to form by the two-stage small dike and the two-stage mud property soil back-pressure dike heart.
Claims (3)
1. the back-pressure structure of soft foundation dykes and dams; Be provided with the small dike in the main dike one or both sides; The small dike adopts trapezoidal cross-section or triangular section, it is characterized in that between main dike and small dike, having the mud property soil back-pressure dike heart, and the distance between main dike and the small dike is 3～6 times of main dike height; Small dike's crest level is higher than mud property soil back-pressure dike heart crest level 0～0.5m, the height of the small dike and the native back-pressure dike of the mud property heart be not less than the main dike height 1/3 and be not more than 2/3 of main dike height.
2. the back-pressure structure of a kind of soft foundation dykes and dams according to claim 1 is characterized in that being provided with second level small dike in small dike's back of the body main dike side, and the second level mud property soil back-pressure dike heart is set between small dike and second level small dike.
3. the back-pressure structure of a kind of soft foundation dykes and dams according to claim 1 and 2 is characterized in that the small dike adopts combined type tubulose filling bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220012910 CN202466518U (en) | 2012-01-12 | 2012-01-12 | Back pressure structure of soft soil foundation dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220012910 CN202466518U (en) | 2012-01-12 | 2012-01-12 | Back pressure structure of soft soil foundation dam |
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| Publication Number | Publication Date |
|---|---|
| CN202466518U true CN202466518U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220012910 Expired - Lifetime CN202466518U (en) | 2012-01-12 | 2012-01-12 | Back pressure structure of soft soil foundation dam |
Country Status (1)
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| CN (1) | CN202466518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981841A (en) * | 2014-06-03 | 2014-08-13 | 上海隧道工程股份有限公司 | Earth filling damming structure and method in peaty soil layer of water area |
| CN104099896A (en) * | 2014-07-17 | 2014-10-15 | 黄河勘测规划设计有限公司 | Permeable impact-resistant distribution dam suitable for confluence of natural main river channel and natural branch river channel |
-
2012
- 2012-01-12 CN CN 201220012910 patent/CN202466518U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981841A (en) * | 2014-06-03 | 2014-08-13 | 上海隧道工程股份有限公司 | Earth filling damming structure and method in peaty soil layer of water area |
| CN103981841B (en) * | 2014-06-03 | 2015-12-02 | 上海隧道工程股份有限公司 | Banket damming structure and method in the peat swamps evolution of waters |
| CN104099896A (en) * | 2014-07-17 | 2014-10-15 | 黄河勘测规划设计有限公司 | Permeable impact-resistant distribution dam suitable for confluence of natural main river channel and natural branch river channel |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |