土工膜铺设一般是在无水的情况下作业 ,水下铺设土工膜是工程特例 ,国内外未见先例。我们通过反复实践、不断摸索、攻克了水上移动式作业平台架设、土工膜裁剪、缝接和水面铺设、土工膜抛石下沉三大技术难关 ,终于形成了一整套水下铺设土工膜的方法和工艺。本技术适用于人工降水很不经济的情况下带水铺设土工膜施工 ,具有十分明显的经济效益。 Geomembrane laying is generally in the absence of water operations, laying geomembrane underwater project is a special case, no precedent at home and abroad. Through repeated practice and continuous exploration, we have overcome three technical difficulties of erecting mobile work platforms, geomembrane cutting, seaming and surface laying, and geomembrane throwing. Finally, we have formed a complete set of methods for laying geomembranes underwater And craft. This technology is suitable for artificial rainfall is not economical case of laying geomembrane with water, with a very significant economic benefits.