Impacts of Canal Lining Form on Anti-seepage Effect
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Abstract:
Six types of anti-seepage canal lining forms were selected from the aspects of impervious material, anti-frost heaving, and dilatation joint in the Shijin Irrigation District. Dynamic water method was used to conduct the field tests on the effects of canal anti-seepage, and a calculation formula was proposed to characterize the water loss in canal conveyance. Through the comparisons of the anti-seepage effects, anti-frost heaving effects, water saving effects, and investment benefits of the six lining forms before and after the thaw period, the water loss rate per unit length for the lining form of “cast-in-place concrete plus heated board with resinous balm and mortar” was 0.0306 /km, the investment per unit length was 53.73 million Yuan/km, and the anti-seepage effects kept unchanged before and after the thaw period. In summary, this canal lining form was suitable in the Shijin Irrigation District and may be applied to other anti-seepage engineering projects in North China.
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