| 摘要 |
PURPOSE:To increase the bearing capacity of the ground by a method in which soil is hardened with a soil hardener, etc., to form an improved soil layer, and the bottom face of the improved soil layer is formed into a concaved arc shape to form a contact face with the field ground. CONSTITUTION:The soil beneath the foundation or bottom of a general structure is hardened with a soil hardener liquid, etc., to form an improved soil layer 1. The bottom face of the improved soil layer 1 is shaped into an arc-shaped face 3 of a concave form 2 by using a vertical type rotary stirrer or a trencher type stirrer to form a contact face with the field ground 4. Since loads are transmitted along the peripheral wall of the bottom face 3 toward both ends of the bottom face, the loads are offset with stress ready to move toward the outside and necessary bearing capacity is produced. |
