Steep Slope Arch Dam Block Reliability Based on Normal Opening of Rock-Concrete Joints

The steep slope concrete cast is an important subject for super dam construction and the stability of dam block must be studied to establish the applicable casting plan. The cohesive non-linear model and reduction algorithm on cohesive force and friction coefficient of interface zones were adopted to simulate this case. The analysis discovers that the dam block 23 of Xiluodu arch dam works properly under 3-lift separately casting plan. The opening value and tangential displacement vector from interface of rock-concrete joints are within the margin of safety.