%0 Journal Article
%A ZHANG Jun-wen
%A ZHANG Zhi-xin
%A NI Yuan-zhen
%T Causes and Treatments of Upper Diagonal Cracks at the Downstream Side of Main Dam Pier of Lushui Hydropower Complex
%D 2020
%R 10.11988/ckyyb.20200530
%J Journal of Yangtze River Scientific Research Institute
%P 165-168
%V 37
%N 12
%X The causes of the upper diagonal cracks at the downstream side of the main dam pier of Lushui Hydropower Complex are analyzed using finite element method with ABAQUS. By establishing a 3D model of the downstream side of the main dam 5<sup>#</sup> pier, including the spillway surface, the pier and the foundation of hoist bents on the pier, the thermal stress was analyzed using ABAQUS. The action of solar temperature is a major cause of the cracks. In addition, a crack treatment scheme for the pier was developed, and emergency measures such as prestressed anchoring, planting reinforcement, and chemical grouting were adopted to effectively control the cracks. The research offers a reference for the treatment of similar engineering defects.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20200530