摘要
黄金坪水电站调压室洞室规模较大,围岩以Ⅱ、Ⅲ类为主,局部为Ⅳ、Ⅴ类。通过开展三维数值仿真分析,论证大规模地下洞室的围岩稳定状况,分析不同工况下调压室衬砌结构的受力特性,提出调压室边墙衬砌、导流墩采用双层配筋,阻抗板采用分区配筋,孔口需加强配筋的设计方案。实践表明,该设计方案安全可靠,施工可行,经济合理。
The surge chamber of Huangjinping Hydropower Station is large-scale cavern engineering. Most of surrounding rock of cavern belongs to Class III and II and local belongs to Class IV and V. By conducting three-dimensional numerical simulation analysis, the surrounding rock stability situation is demonstrated and the stress conditions of lining structure of surge chamber under different operation conditions are analyzed. It is proposed that the sidewall lining of surge chamber and diversion piers will be doubly reinforced, the impedance board need be partitioned to reinforce and the impedance orifice need be additionally reinforced. The actual practice shows that the design scheme is safe and reliable, the construction is feasible and the economy is rational.
出处
《水力发电》
北大核心
2016年第3期35-38,共4页
Water Power
关键词
调压室
围岩稳定分析
衬砌结构
配筋
黄金坪水电站
surge chamber
surrounding rock stability analysis
lining structure
reinforcing
Huangjinping Hydropower Station
