Canal lining repair buried pipe water delivery and cofferdam cut-off foundation pit and its construction method
A technology of cofferdams and channels, applied in the diversion field of water conservancy and hydropower projects, can solve the problems of long water delivery channels, etc., and achieve the effects of reducing water head, avoiding pressure damage, and achieving great social and economic benefits
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[0032] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, they are only examples, and at the same time, the advantages of the present invention will become clearer and easier to understand.
[0033] Technical research has been carried out on the main canal of the first phase of the middle line of the South-to-North Water Diversion Project. The project adopts a trapezoidal section, and the thickness of the full-section cast-in-place concrete lining slab is 8cm-10cm. The lower part of the lining slab is anti-seepage with a composite geomembrane. Concealed pipes (water-permeable hoses), check valves, etc. are representative of long-distance water delivery channels.
[0034] The channel lining of the present invention repairs the buried pipe water delivery and cofferdam cut-off type foundation pit, which is characterized in that: the water chan...
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