When performing excavation work in cramped conditions, with a high level of groundwater or in loosely cohesive soils, it is necessary to perform work to strengthen the walls of pits and trenches to prevent their collapse. These works are carried out by driving into the ground Larsen4,5,6 or other types of sheet piles, I-beams, channels, pipes or by sheet piling.
The sheet piles are driven by vibratory driving using modern Muller equipment based on excavators.
Depth of piling can reach 20 meters.
Sheet driving can be carried out both vertically and with predetermined angles of inclination. It is also possible to perform work in a limited space (under bridges, power lines, indoors, etc.). To increase the strength of the walls, spacer beams and pile systems are used.