CN203113358U - Clay sandstone cofferdam structure - Google Patents
Clay sandstone cofferdam structure Download PDFInfo
- Publication number
- CN203113358U CN203113358U CN 201320005384 CN201320005384U CN203113358U CN 203113358 U CN203113358 U CN 203113358U CN 201320005384 CN201320005384 CN 201320005384 CN 201320005384 U CN201320005384 U CN 201320005384U CN 203113358 U CN203113358 U CN 203113358U
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- cofferdam
- clay
- standstone
- weir
- mask
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Abstract
The utility model relates to a cofferdam structure, in particular to a clay sandstone cofferdam structure. The clay sandstone cofferdam structure comprises a cofferdam body and a cofferdam protecting face, wherein the cofferdam body is built through sandstones containing clay, and the cross section of the cofferdam body is trapezoid; and the cofferdam protection face is of a clay sandstone gravel structure, is in a horizontal laying mode, and is arranged on a close-to-water side of a cofferdam. The clay sandstone cofferdam structure uses the clay sandstone gravel cofferdam protecting face, construction is convenient, a reversed filter is needless, construction difficulty of cofferdam engineering is effectively reduced, a clay sandstone gavel face is deep into a rock layer or a water impervious layer, the leakage problem of a mud stone structure foundation is effectively solved, and construction procedures are simplified.
Description
Technical field
The utility model relates to a kind of cofferdam structure, particularly a kind of clay standstone cofferdam structure.
Background technology
In engineering fields such as water conservancy and hydropower, water transport harbour, city's political and ideological work China Democratic National Construction Associations, the cofferdam all need be set before the engineering construction, create the dry work condition.Complicated along with the variation of hydraulic engineering and geological conditions, construction technology is fast-developing the variation also, especially repaiies (expansion) in the river course and builds, reinforces hydraulic engineering, owing to be subjected to the restriction in space, it is more and more difficult to fetch earth, and traditional cofferdam structure has been difficult to satisfy the demand of modern hydraulic engineering construction.Present earth rock cofferdam commonly used, packeted soil (sand) cofferdam, steel sheet-pile cofferdam structure etc.1), use cubic metre of earth morely there is following shortcoming in these cofferdam structures:, destroy environment, be unfavorable for environmental protection; 2), take the cultivated soil of using on a large scale; 3), the stock ground from construction field away from, strengthen freight; 4) influence construction speed.Thus, we need formulate specific cofferdam structure at specific geological conditions, for example: clay standstone is a kind of common rock, and this rock has meets the characteristics that water softening becomes mud, itself possesses good barrier performance, at this characteristics of clay standstone, we have researched and developed a kind of clay standstone cofferdam structure, both can gather materials on the spot, and take full advantage of construction and excavation and abandon material (clay standstone), solved again because taking sticking dried the problems referred to above that cause, also solved the seepage prevention of cofferdam problem.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of clay standstone cofferdam structure, has reduced the cofferdam construction operation, has reduced difficulty of construction, also efficiently solves earth rock cofferdam basis and weir body antiseepage problem.
For addressing the above problem, the purpose of this utility model is achieved in that a kind of clay standstone cofferdam structure, and the clay standstone cofferdam structure comprises weir, cofferdam body and cofferdam mask; Weir, cofferdam body is filled by the stone clay standstone and forms, and the cross section of weir, cofferdam body is trapezoidal; The cofferdam mask is the clay standstone crushed stone, is horizontal bedding formula, is arranged at cofferdam side near water.
All right, cofferdam mask and weir, cofferdam body are combined closely, and the cofferdam mask gos deep in the lithosphere or impervious layer of weir, cofferdam body.
All right, put one deck rubble on the mask of cofferdam.
The utlity model has following technique effect: the utility model cofferdam only need arrange clay standstone rubble cofferdam mask, weir, cofferdam body, weir, cofferdam body filling material is the stone clay standstone, this clay standstone is met water and is become mud to have barrier performance preferably, need in the body of weir, cofferdam impervious wall be set again; Enclose impervious wall work owing to reduced to arrange, effectively reduce difficulty of construction, improve the cofferdam construction quality, accelerating construction progress shortens the construction period; Compare with traditional cofferdam structure, because this cofferdam structure is the structure that designs at the clay standstone geological conditions specially, this clay standstone is met water and is become mud, possesses good anti-seepage effect, can significantly reduce weir, cofferdam body antiseepage workload, and efficiently solve the leakage problems on rock structure basis, and especially being useful on the river course of clay standstone character geology, this clay standstone cofferdam structure has better economy, applicability and feasibility.Fill material owing to utilize the works area excavation to abandon material as the cofferdam, significantly reduced construction input expense, reduce cost, protected environment again.
Description of drawings
Below in conjunction with drawings and Examples utility model is described further.
Fig. 1 is the utility model clay standstone cofferdam structure generalized section.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model clay standstone cofferdam structure is made up of weir, cofferdam body 1 and cofferdam mask 2, and cofferdam mask 2 is the clay standstone crushed stone, is arranged at cofferdam side near water; Weir, cofferdam body 1 is filled into by the stone clay standstone, and the cross section of weir, cofferdam body 1 is trapezoidal.Its specific implementation method is as follows: lithosphere or impervious layer 4 behind clear base fill weir, cofferdam body 1, and lithosphere or impervious layer 4 adopt artificial or mechanical plucking, and weir, cofferdam body 1 is selected for use and contained the stone clay standstone and fill; Cofferdam mask 2 is combined closely with weir, cofferdam body 1, and gos deep in the lithosphere or impervious layer 4 of weir, cofferdam body 1; Finish the weir body fill with mask construction after, the cofferdam mask 2 upthrow rubbles 3 of side near water in the cofferdam, protection cofferdam mask 2 is subjected to washing away of current.
More than a kind of clay standstone cofferdam structure that the utility model embodiment is provided be described in detail; for the design of those skilled in the art according to the utility model embodiment; all can change to some extent in specific embodiments and applications; in sum; this description is not to restriction of the present utility model, and all any changes of making according to the utility model design concept are all within protection domain of the present utility model.
Claims (3)
1. clay standstone cofferdam structure, it is characterized in that: described clay standstone cofferdam structure comprises weir, cofferdam body (1) and cofferdam mask (2); Weir, described cofferdam body (1) is filled by the stone clay standstone and forms, and the cross section of weir, cofferdam body (1) is trapezoidal; Described cofferdam mask (2) is the clay standstone crushed stone, is horizontal bedding formula, is arranged at cofferdam side near water.
2. a kind of clay standstone cofferdam structure according to claim 1 is characterized in that: described cofferdam mask (2) is combined closely with weir, cofferdam body (1), and cofferdam mask (2) gos deep in the lithosphere or impervious layer (4) of weir, cofferdam body (1).
3. a kind of clay standstone cofferdam structure according to claim 1 is characterized in that: put one deck rubble (3) on the described cofferdam mask (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005384 CN203113358U (en) | 2013-01-07 | 2013-01-07 | Clay sandstone cofferdam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005384 CN203113358U (en) | 2013-01-07 | 2013-01-07 | Clay sandstone cofferdam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203113358U true CN203113358U (en) | 2013-08-07 |
Family
ID=48893721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320005384 Expired - Fee Related CN203113358U (en) | 2013-01-07 | 2013-01-07 | Clay sandstone cofferdam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203113358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196043A (en) * | 2014-09-01 | 2014-12-10 | 董兰田 | Scheme for avoiding special risk of tunnel crossing aboveground river in cofferdam area |
| CN107130644A (en) * | 2016-11-11 | 2017-09-05 | 新疆北方建设集团有限公司 | Coffering composite geo-membrane and gravelly clay combination against seepage construction method |
-
2013
- 2013-01-07 CN CN 201320005384 patent/CN203113358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196043A (en) * | 2014-09-01 | 2014-12-10 | 董兰田 | Scheme for avoiding special risk of tunnel crossing aboveground river in cofferdam area |
| CN104196043B (en) * | 2014-09-01 | 2016-07-13 | 董兰田 | Hanging river Chuan He tunnel abnormal risk method is evaded in Wei Weng district |
| CN107130644A (en) * | 2016-11-11 | 2017-09-05 | 新疆北方建设集团有限公司 | Coffering composite geo-membrane and gravelly clay combination against seepage construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130807 Termination date: 20190107 |