SAMPLING APPARATUS FOR SOIL SAMPLE IN STRATUM INVESTIGATION

摘要

PROBLEM TO BE SOLVED: To provide a sampling apparatus by which a soil sample can be sampled surely in a so-called penetration test, in which the rotation of a penetration rod is performed without being transmitted to a sample sampling tube and by which the soil sample of high reliability is obtained.;SOLUTION: The lower end part of the cylindrical penetration rod 1 which is turned and lowered inside the ground by a penetration device is engaged detachably with a tip cone 4 which constitutes an introduction port 5 for the soil sample in such a way that it is overlapped up and down with the tip cone 4. The sample sampling tube 3 whose lower end is assembled to the tip cone 4 so as to be freely inserted and removed and which communicates with the introduction port 5 and a guide pipe 7 whose lower end is connected to the upper end part of the tube 3 by a connection means are arranged and installed at the inside of the penetration rod 1. A contactor 11 is installed at the upper end part in which a connecting material 2 connected to the penetration device for the penetration rod 1 is installed, and a contactor 10 which comes into point contact with the contactor 11 on the axial line of the penetration rod 1 is installed at the upper end of the guide pipe 7.;COPYRIGHT: (C)2003,JPO