对该章的主要目的容易误解或忽视的几个基础课题进行重新探讨,就连续墙及其有关构造物的解析和设计方法的难点进行探索。能使这种施工方法在向深的掘削上予以新的展望。为此,就新范围的技术成为必要。应该对以下概念进行理解。 (1) 挡土墙的机能不是仅仅支持土压力,还须防止土的有害变形。在后者由以下事项影响之。 (a) 掘削的规模 The basic topics that are easily misunderstood or overlooked in the chapter are revisited, and the difficulties in the analysis and design of the continuous wall and related structures are explored. This construction method can give a new perspective on deep excavation. For this reason, a new range of technologies becomes necessary. The following concepts should be understood. (1) The function of the retaining wall is not only to support earth pressure but also to prevent harmful deformation of the soil. The latter is influenced by the following matters. (a) The size of the excavation