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为避免岩基重力坝因温度变化和不均匀沉陷而产生大量的不规则裂缝,一般在垂直于坝轴线方向设置永久性横缝将坝体分割成为若干个坝段。混凝土重力坝的横缝间距多为15～25米,视温度应力条件,现场浇筑能力及结构布置要求而定。浆砌石重力坝因水泥用量少,横缝间距常在30米左右。设置横缝后,大坝抗滑稳定分析选用的计算单元有两种:1.视为平面问题即分别在挡水
In order to avoid a large number of irregular fractures caused by temperature variation and uneven subsidence of rock-filled gravity dam, permanent dam joints are usually set perpendicular to the dam axis to divide the dam into several dam sections. Concrete gravity dam spacing of mostly transverse cracks 15 to 25 meters, depending on temperature stress conditions, site pouring capacity and structural requirements may be. Masonry stone gravity dam due to less cement, transverse joints often 30 meters. Set the transverse joint, the dam stability analysis of anti-sliding selection of the calculation unit has two kinds: 1. As a plane problem that are in the water