SG series Hydraulic Diaphragm Wall Grab Working Principle of Hydraulic Diaphragm Wall Grab:
1. Making guide wall;
2. The machine digs along the guide wall; and at the same time, using inclinator to measure the verticality;
3. Adjust the grab verticality to keep the wall precision;
4. Slurry should be used to prevent wall collapse...
SD series Rotary Drilling Rig This rotary drilling rig is proved to drilling in many strata such as clay, unconsolidated soil, sand soil, silt stratum, backfilled earth, the stratum of gravel, weathered rock and frozen ground, etc...