防渗土工膜膜下气场产生规律分析

摘要

本文采用室内试验与理论研究相结合的方式，分析平原水库采用土工膜防渗情况下，膜下气场产生的规律。结果表明：膜下气场强度随着水分入渗时间的增加而增大，但增加速率随着入渗时间的增加而减小。%This paper analyzed the produce law of gas field under film under plain reservoir with geomem-brane against seepage using a combination of laboratory experiments and theory.The results show that:the gas field strength under film increases with water infiltration time increases ,but the rate of increase with increasing infiltration time decreases.