采用橡胶充气胶囊在涵管内予留防渗墙施工尺寸，上下游封堵涵管，防渗墙泥浆槽在两胶囊之间通过。
Inflatable rubber capsules are used inside the culverts to give room for construction and both sides of the culverts are blocked , the cut-off wall concrete going between the two capsules .
橡胶胶囊