FORMWORK ELEMENT FOR TRENCH WALL AND TRENCH WALL ERECTION METHOD Russian patent published in 2015 - IPC E02D17/08 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to erection of trench wall in ground. The formwork element for the trench wall intended for placement between the first erected section of the trench wall and the adjacent second section of the trench wall to be erected, containing the main body in the form of bar having the formwork side with the first formwork surface and the second formwork surface and between the first formwork surface and the second formwork surface the reception chute is located which is implemented in the form of recess with reference to two formwork surfaces which contains the waterproofing strip which passes along the main body, and the closing element by means of which the reception chute on the main body is closed. The closing element surrounds the reception cavity where the protected waterproofing strip is located and which is implemented with a possibility of opening for release of the waterproofing strip. The closing element is implemented in the form of film or fabric implemented with a possibility of rupture for opening of the reception cavity on the main body and release of the waterproofing strip, and the reception cavity is filled with fluid or loose material filler.

EFFECT: technical result consists in providing of reliability of the trench wall with high waterproofing ability in ground.

18 cl, 2 dwg