丰满新建重力坝基础F_(67)断层处理技术方案拟定研究

The Fault Processing Technique Plan on Fengman Newly Built Gravity Dam Foundation F_(67)

丰满水电站大坝全面治理工程中,新建重力坝坝址区右岸存在威胁坝体稳定和运行安全的F_(67)断层,调查分析了部分已建工程处理基础断层所采用的技术措施,结合丰满新建大坝的工程及地质特点,对F_(67)拟定了3种处理技术方案,经过计算分析和比较,最终确定采用断层部位开挖置换混凝土的方案处理F_(67)断层。

F67fault is located at the right bank of the newly built gravity dam area during Fengman hydropower station dam comprehensive treatment project.In this article,the investigations to some projects in construction have been performed to check if the technique treatment measures has been adopted during the treatment to foundation faults.Three technique measures are determined for F67fault with the engineering and geological characteristics of Fengman newly built dams.After calculation,analysis and comparison,the excavation displacement of concrete in the fault is finally selected to process the F67fault.