| 摘要 |
PURPOSE: Steel pipes for construction of an underground cutoff wall are provided to secure enough strength, the advantage of a cast-in place pile method, and obtain high cutoff effect. CONSTITUTION: A steel pipe for an underground cutoff wall comprises a main body, a front blade member(120), and a rear blade member(130). The front blade member is installed lengthwise on the front end of the main body, with an outer end inclined rearward. The rear blade member is installed lengthwise on the rear end of the main body, with an outer end inclined frontward. |
