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    • 2. 发明专利
    • MEASURING METHOD FOR STRESS DEGREE OF EXISTENT END DAM WALL
    • JPS6352027A
    • 1988-03-05
    • JP19697786
    • 1986-08-22
    • KAJIMA CORP
    • HORIUCHI OSAMU
    • E02D1/08G01L5/00
    • PURPOSE:To take an accurate measurement by fitting a press-in guide to the ground exposed part of an end dam wall and pressing a guide pipe in the ground along the guide. CONSTITUTION:A reaction plate 5 where a hydraulic jack 3 is fitted and the press-in guide 6 which guides the guide pipe 2 are fixed by welding, etc., on the back side of the on-ground exposed part of a specific steel sheet pile 1. Then the jack 3 is fitted to the reaction plate 5 and the 1st pipe 2 is stood along the steel sheet pile 1. Press-in operation is started by the jack 3 so that the stood pipe 2 is invariably along the steel sheet plate 1. Another pipe 2 is joined after the press-in operation and similar operation is performed. This operation is repeated to the length of all pipes 2 to install the pipes 2 to target installation depth. The on-ground part of the pipe 2 is welded to the steel sheet plate 1 after the end of the press-in operation and an inclinometer is inserted into the pipe 2 to find the displacement of the end dam wall. Further, this displacement is made to recur to a multidimensional polynomial, which is differentiated to obtain a smooth bending moment chart and a shear chart.