渠道防渗防冻胀试验及结果分析

Canal Seepage Control Antifreeze Bulge Test and Result Analysis

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 leakage not only affect the irrigation efficiency,but also push up the underground water level,channel depression formed near the swamp. On the main factors that influence the frost heaving and toad by basic situation analysis of the test section of the main canal irrigation area,the anti- seepage antifreeze bulge test scheme design,and analyzes the observed data,the results show that the thicker the insulation board,heat preservation effect,the better,heat preservation measures of channel has a good effect of frost heaving,can effectively avoid the damage caused by frost heave to channel. Hope to provide guidance for the channels of antifreeze research in the future.