云龙河碾压混凝土拱坝结构分缝研究

Study on joints allocation of RCC arch dam on Yunlong River

考虑碾压混凝土拱坝的施工特点,浇筑气温变化影响,施工渡汛及横缝灌浆要求,水库蓄水过程以及混凝土的热力学特性变化等因素,采用三维有限元法计算坝体温度场及应力场过程,结合云龙河工程实际,通过对比分析不同分缝方案下的坝体应力场计算结果,推荐了一种分缝方案。

In consideration of the influential factors on arch dam construction,such as the concrete placing particularities,the temperature fluctuatioo,the requisition of dam construction in flood season,the advantageous grouting apportunity of transversal joints,the reservoir impounding procedure and the variation of thermodynamics properties of concrete etc.,the stress field and stress redistribution of Yunlong RCC arch dam according to different joints allocation schemes are calculated and compared with 3D FEM,the...