2009 Fiscal Year Final Research Report

Visualization of Execution Ability and Bearing Capacity of Screw Pile Using Thermography

Research Project

Project/Area Number	19560579
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Building structures/materials
Research Institution	Tokai University
Principal Investigator	FUJII Mamoru Tokai University, 工学部, 教授 (70130094)
Project Period (FY)	2007 – 2009
Keywords	基礎構造 / サーモグラフィ / 可視化 / 杭
Research Abstract	This Study proposes a method of visualization using thermography suitable for the evaluation of execution ability and bearing capacity of the screw pile. The correlation between the temperature distribution and stress appears most clearly by thermography with a sand : clay mixing ratio of 7:3 and with a water content of 7%. And the proper distance from the test samples to the lamp was 60cm and proper heated time was 15seconds. Based on these results, the pile was driven into the soil at 4 different penetration speeds. As a result, it is possible to evaluate the performance of a screw pile and the mobility of soil using thermography images.