TEMPORARY SOIL SHEARING SYSTEM SUPPORTED BY LONG SPAN PRESTRESS AND WALE AND CONSTRUCTION METHOD THEREFOR

摘要

PURPOSE: A temporary soil shearing system supported by a furring strip and a long-span pre-stress lagging and a construction method thereof are provide to improve construction by reducing or removing a furring strip installation step. CONSTITUTION: A vertical pile(14) is established in an excavation rear side(11) in the regular interval. A lagging(32) is established near a flange of the vertical pile. The flange of the vertical pile is inserted in an insertion groove of a guide channel(31) which is formed on the lagging. A tendon fixture(37) is welded on the guide panel. A tension member(34), in which a coupling and tensioning device is installed on the tendon fixture, is fixed on both ends. The tension is delivered to the lagging by fastening the coupler of the coupling and tensioning device in order to install the long span pre-stress lagging in which the pre-stress is introduced.