POINT PENETRATION TESTING MACHINE USING DYNAMIC CONE PENETRATION TESTING MACHINE AND PENETRATION TESTING MACHINE USED FOR THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a point penetration testing method using a dynamic cone penetration testing machine and a penetration testing machine used for the method capable of measuring N-value of more accurate ground in a state to have no circumferential frictional resistance by soil while preventing the collapse of the ground without using any bentonite. SOLUTION: The point penetration testing method is constituted by screwing an inside and outside section rod to the inside front end of the front end of the rod consisting of the inside and outside section front end, providing a proper interval in the inside and outside section rod to form a double pipe structure, penetrating a point penetration testing rod screwing a monkey to the inside and outside section rod through a monkey fixture in the ground, inserting a standard penetration testing sampler in the outside rod and using the dynamic cone penetration testing machine performing a collection test. COPYRIGHT: (C)2005,JPO&NCIPI