摘要
太原第二热电厂阳坡灰场自2004年投入运行以来,发现坝体裂缝较多,坝肩透水较为严重,为了确保灰场安全运行,需进行分析评价。灰场及随着贮灰面升高以及后期三级子坝加高后,灰坝坝体及南北坝肩的安全特性进行了测查,结合原型观测资料、工程地质勘探和室内试验成果对现状坝体以及南坝肩变形和渗流进行了反分析,确定了土体计算参数,然后在对初期坝和灰坝加高后坝体、南坝肩进行有限元静动力分析、渗流分析和稳定分析的基础上,对坝体和南坝肩的安全性进行了评价,并提出了相应的工程治理措施,研究方案对类似工程项目具有一定的指导意义。
From bringing into service of Yangpo ash field of Datang Taiyuan No. 2 Thermal Power Plant in 2004,it is found that there are a lot of fractures in dam body and it is serious to filter in dam abutment. Combining prototype measurement data with the results of engineering geological prospecting and indoor soil test ,the feedback analysis is proceeded for the deformation and seepage flow of present dam body and dam abutment. On the basis of the above analysis, the soil computation parameters are determined. Then based on the FEM static-dynamic analysis, seepage flow analysis and stability analysis of preliminary dam and terminal dam, it is carried through safety evaluation for dam body and south dam abutment. Finally corresponding project treating measurements which may have some guide meanings for analogous project are put forward.
出处
《电力学报》
2008年第2期101-105,共5页
Journal of Electric Power
基金
大唐集团公司科研立项项目(2006-04-012)
关键词
灰场
裂缝
透水
数值模拟
反馈分析
ash field, fracture
filter
numerical modeling
feedback analysis