Construction method of semi-rigid connection diaphragm wall

The invention discloses a construction method of a semi-rigid connection diaphragm wall. The construction method adopts a semi-rigid joint form formed by combining a fore shaft pipe and a water stop steel plate, so that not only is the contact area of the joint of diaphragm wall units increased, but also the wall strength and the waterproof and anti-seepage effects are improved under the action of the water stop steel plate. The problem that due to the fact that the joint of an existing diaphragm wall is insufficient in rigidity and prone to water seepage, forward excavation and reverse construction is difficult to carry out smoothly is solved. 本发明公开了一种半刚性连接地连墙的施工方法，采用锁口管与止水钢板的组合形成半刚性接头形式，既增加了地连墙单元的连接处的接触面积，又在止水钢板的作用下增加了墙体强度和防水防渗功效。本发明解决了现有的地连墙的接头处刚度不足且易渗水，导致顺挖逆做法施工难以顺利开展的问题。