复合土工膜是一种非常理想的防渗材料

复合土工膜是一种非常理想的防渗材料。 土工膜具有良好的防渗性能，其垂直防渗系数可达到 10-11cm/s 量级。土工膜以其优越的防渗性能得以在水库设计中广泛应用，尤其是在全库盘防渗水库工程中，土工膜已成为不可或缺的防渗选择。由于高分子材料的渗透性极低，一般可将防渗土工膜看作几乎不透水的材料，但是在其制造、运转和铺装过程中，无法避免会出现膜体损伤的情况，存在损伤的土工膜，其防渗性能也会随之改变。因此，在水库蓄水前往往需要对土工膜进行详细检查并及时处理膜体上的破损，防止形成渗漏点。 

通(tong)过对(dui)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)防(fang)(fang)渗(shen)(shen)技术(shu)(shu)研究现状的(de)(de)综合分(fen)析(xi)，发(fa)现无(wu)论是在(zai)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)防(fang)(fang)渗(shen)(shen)体的(de)(de)设计与应(ying)用，还是在(zai)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)特性与缺陷系列的(de)(de)理(li)论分(fen)析(xi)和计算研究中，都(dou)取得了一定的(de)(de)成果，针对(dui)实际工(gong)(gong)(gong)(gong)(gong)(gong)程应(ying)用的(de)(de)研究也越(yue)来(lai)越(yue)多。但对(dui)于在(zai)平原水库(ku)全(quan)库(ku)盘土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)防(fang)(fang)渗(shen)(shen)施工(gong)(gong)(gong)(gong)(gong)(gong)全(quan)过程中的(de)(de)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)破坏(huai)形式、降排措施、施工(gong)(gong)(gong)(gong)(gong)(gong)方案以及施工(gong)(gong)(gong)(gong)(gong)(gong)技术(shu)(shu)即在(zai)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)防(fang)(fang)渗(shen)(shen)施工(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)技术(shu)(shu)与管(guan)理(li)方面还未有广泛的(de)(de)应(ying)用研究。