Diaphragm walls

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Diaphragm walls bear with its static function the ground and water pressure and transfer them into the ground, through anchoring or ground resistance in its lower part. First of all, the excavation pit shall be made, in which guide walls are set up. They represent a kind of template for the diaphragm wall and define construction pit shape. Diaphragm walls bear with its static function the ground and water pressure and transfer them into the ground, through anchoring or ground resistance in its lower part. First of all, the excavation pit shall be made, in which guide walls are set up. They represent a kind of template for the diaphragm wall and define construction pit shape. Furthermore, they ensure correct direction of grapple and stabilize the upper zone of diaphragm wall. The diaphragm wall is executed in panels. In the course of diaphragm wall construction a bentonite suspension is used, which strengthens the ground through its hydraulic pressure. When advancing with the excavation works and as a consequence of suspension loss in the underlying ground, it is necessary constantly to be refilled. After the required depth is reached, reinforcement package is lowered and then the panel is concreted with concreting pump. 


This method treats the execution of diaphragm walls with special diaphragm wall equipment. 

The diaphragm walls are formed out of reinforced concrete elements, executed one by one in the ground. This type of construction is able to perform support-, reinforcement- and water resistant functions, which determines their application field. The most frequent use of diaphragm walls is the excavation strengthening in urban conditions.

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