| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform measurement by preventing an investigation hole from collapsing even without using any muddy water in an electrical layer inspection method and device. SOLUTION: In an electrical layer inspection method, electrical layer inspection equipment 2 is loaded into an investigation hole 1 that is dug into the ground for measuring the nature of the soil and the characteristics of the ground water. At this time, an investigation hole formation process for inserting a cylindrical casing 4 for digging the investigation hole 1, and at the same time for supporting the hole wall; a layer inspection equipment insertion process for lowering the electrical layer inspection equipment where a connection member 5 is mounted in an upper portion into the casing 4 so that it is seated at the hole bottom of the investigation hole, and at the same time for pulling up the casing 4 so that only the electrical layer inspection equipment 2 at the lower portion of the connection member 5 can be exposed from the lower portion of the casing 4 after the investigation hole formation process; a layer inspection equipment fixing process for fixing the electrical layer inspection equipment 2 to the casing 4 by the connection member 5 after the inspection equipment insertion process; and a process for measuring the nature of the soil and the characteristics of the ground water by the electrical layer inspection equipment 2, while pulling up the casing 4 after the layer inspection equipment fixing process are provided.</p> |
