Karst area reservoir full-reservoir-basin anti-seepage treatment structure and construction method
A construction method and the technology of the whole storage basin, applied in the direction of water conservancy projects, sea area projects, construction, etc., can solve the problems of incompleteness, uneconomical, large investment, etc., and achieve the effect of controlling leakage and good economic benefits
Pending Publication Date: 2018-09-18
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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Problems solved by technology
[0005] Karst caves and underground rivers in karst areas are difficult to identify, and all of them require a lot of work and investment. Therefore, the above-mentioned anti-seepage treatment measures will inevitably lead to incomplete, incomplete, and uneconomical problems of anti-seepage, and even reservoir water storage. After the leak
In addition, among the above anti-seepage measures, the soft felt bedding anti-seepage method can only be used for gentle areas of the reservoir area, and there is a problem of application limitations for steeper areas.
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[0037] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.
[0038] Such as Figure 1~4 As shown, a construction method for anti-seepage treatment of the entire reservoir basin in a karst area includes the following steps:
[0039] ① According to the normal water storage level, clean up the covering layer of the reservoir area below the reservoir water level (that is, the bottom of the reservoir);
[0040] ② Investigate and find out the seepage channel 9 existing in the overburden of the reservoir area below the water level of the reservoir, and clean up the seepage channel 9; specifically, it is divided into the following steps:
[0041] (2.1) The way of concrete plugging is adopted, the infiltration channel 9 is backfilled with C15 concrete 8, and a concrete cover plate is set on the surface of the infiltration channel 9;
[0042] (2.2) Clean up within twice the maximum dimension of the ...
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The invention provides a karst area reservoir full-reservoir-basin anti-seepage treatment construction method. According to the difference of reservoir area terrains and different seepage characteristics, seepage preventing is conducted through a full-reservoir-basin full-laying anti-seepage method adopting reservoir bottom anti-seepage layer laying, reservoir bank sprayed concrete anti-seepage plate laying and concrete blocking. By selecting partition anti-seepage measures, local materials and excavated materials are sufficiently utilized to serve as protective layers for anti-seepage film laying at the reservoir bottom area, the construction method is simple, practicable, feasible and effective, and the good economical benefits are achieved. According to the difference of the reservoir area terrains and the different seepage characteristics, seepage is controlled to the largest extent through the combined anti-seepage method adopting reservoir bottom anti-seepage film and reservoir bank sprayed concrete anti-seepage plate laying and concrete blocking for seepage preventing, the full-reservoir full-laying anti-seepage effect is achieved, and the karst area reservoir full-reservoir-basin anti-seepage treatment construction method can be used as the reference for similar engineering construction.
Description
technical field [0001] The invention relates to an anti-seepage treatment structure and a construction method for the entire reservoir basin in a karst area, and belongs to the technical field of water conservancy and hydropower engineering, in particular to the technical field of reservoir seepage treatment in complex geological areas such as karst areas. Background technique [0002] With the development of water conservancy and hydropower construction, more and more dams are being built in China, and dam sites with good geological conditions are becoming less and less. At present, many dams are built in areas where karst is developed. When building dams here, the foundation treatment, seepage prevention treatment around the reservoir and the seepage channel in the reservoir area are extremely important, and the construction technology for treatment is also relatively complicated. [0003] Due to the complex lithology of the strata in karst areas, under the action of disso...
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IPC IPC(8): E02B3/16
CPCE02B3/16
Inventor 陈波居浩李刚高传彬郑晓晖李波周界束
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD