WELL REAMER FOR DRIVEN PILES IN COHESIVE SOILS

摘要

Well reamer for driven piles in cohesive soils includes booster jack, vertical pipe and connection rod, by means of those action is transferred to hinge unit widening soil at the base of the well. Plates pushing out the soil are arranged as a structure of connected telescopically rigid angle elements with formation in horizontal cross-section of right polygon; and the bended ribs hinged to vertical pipe and connecting rod form in pairs wedges with the apexes of those resting at the apexes of the inner angles of the right polygon formed by telescopically connected angle elements.