土留工を伴う堀削斜面の安定性に関する一考察

Abstract

In the construction of an underground water tank at a collective industrial area of Nanyo-cho, Nagoya city, deep excavation in a soil foundation accompanied large deformation of retfining walls and surrounding soil, causing cracking and subsidence in the neighboring structures. Several instruments such as inclinometers were installed in and around the excavated area, and deformation of retaining walls and movement of neighboring structures were measured during excavation. In the present paper, the observation results are analyzed to examine the stability of retaining walls and surrounding soil foundation, and some discussions are given on the methd of stability analysis of slopes in such excavations.