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渠道渗漏不仅影响灌溉效率,而且还会抬高地下水位,使渠道附近的洼地形成沼泽。通过对渠道冻胀主要影响因素和蛤蟆通灌区总干渠试验段基本情况的分析,进行了防渗防冻胀试验方案的设计,并对各观测数据进行了分析。结果表明,保温板越厚,保温效果越好,采取保温措施的渠道具有良好的防冻胀效果,能有效避免冻胀对渠道造成的破坏。希望为今后的渠道防冻研究提供参考。
Channel seepage not only affects irrigation efficiency, but also raises groundwater levels to swamp the depressions near the channels. Through the analysis of the main influencing factors of the channel frost heave and the basic condition of the test section of the main channel of the Toadong irrigation area, the design of the anti-seepage anti-frost heave test scheme was carried out and the data of each observation were analyzed. The results show that the thicker the insulation board, the better the thermal insulation effect. The channels adopting the thermal insulation measures have a good effect of preventing frost heaving and can effectively prevent the damage caused by frost heaving on the canal. It is hoped to provide a reference for future research on anti-freezing of channels.