Connection method for wall sections of ultra-deep anti-seepage wall

The invention discloses a connection method for the wall sections of an ultra-deep anti-seepage wall. The connection method for the wall sections of the ultra-deep anti-seepage wall comprises the steps of sequentially arranging downwards a plurality of joint pipes onto the end head of a slotted hole, and pulling out the joint pipes in a process of pouring concrete into the slotted hole, wherein the step of sequentially arranging downwards a plurality of joint pipes onto the end head of the slotted hole comprises the following steps: arranging a valve assembly and an adjustment assembly at oneend of a bottom pipe of each of the plurality of joint pipes; arranging downwards each bottom pipe with the valve assembly and the adjustment assembly at the bottom of the slotted hole, configuring one end of each of the valve assembly and the adjustment assembly to face the bottom of the hole, so that in the process of pouring the concrete, the adjustment assembly adjusts the opening degree of the valve assembly of the bottom pipe, and the phenomenon of pipe casting is prevented; and when the joint pipes are pulled out in the process of pouring the concrete, a pulling-out time for the joint pipes is controlled according to the components of the concrete and an environment temperature, so that the concrete cannot be adhered to the outer walls of the joint pipes. According to the method, the concrete cannot be adhered when the joint pipes are pulled out, a high hole-forming rate is achieved, the drilling amounts of the concrete joints are greatly reduced, the comprehensive working efficiency of the anti-seepage wall is increased, and the ultra-deep anti-seepage wall without wall breakage is formed.