朱赵辉,朱友良,刘建树,张石磊.百色水利枢纽垂直位移异常问题研究[J].中国水利水电科学研究院学报,2021,19(4):371-380
百色水利枢纽垂直位移异常问题研究
Research on abnormal vertical displacement of Baise Multipurpose Dam Project
投稿时间:2020-04-29  
DOI:10.13244/j.cnki.jiwhr.20200053
中文关键词:  百色水利枢纽  垂直位移  坝基抬升  沉降  安全监测  统计模型
英文关键词:Baise Multipurpose Dam Project  vertical displacement  dam foundation lifting  settlement  safety monitoring  statistical model
基金项目:
作者单位
朱赵辉 中国水利水电科学研究院 工程安全监测中心, 北京 100038
北京中水科工程集团有限公司, 北京 100038 
朱友良 秦皇岛市环境资源开发有限公司, 河北 秦皇岛 066100 
刘建树 北京市海淀区河道管理所, 北京 100094 
张石磊 中国水利水电科学研究院 工程安全监测中心, 北京 100038
北京中水科工程集团有限公司, 北京 100038 
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中文摘要:
      正常情况下,混凝土重力坝在蓄水后大多数表现为下沉变形,而百色水利枢纽在蓄水后运行十余年来,主坝垂直位移产生了坝基抬升、坝顶沉降的“异常”现象。通过查阅工程地质资料、施工过程资料以及相关文献,发现工程坝址区地质条件较为复杂,不同地层力学参数差别显著,岩层倾向下游且倾角较陡,不同高程测点变形特征均有不同,本文从地质诱因、筑坝材料、受力特性等多方面对垂直位移“异常”现象进行定性分析,使用对监测数据进行宏观与微观对比和模型计算等定量分析方法,对提出的垂直位移“异常”现象的定性分析结论进行了佐证,最终得出了较为合理的结论。本文的分析方法可为同类工程监测资料分析提供借鉴。
英文摘要:
      Under normal circumstances,most the concrete gravity dam show a sinking deformation after water storage. Baise Multipurpose Dam Project, however, has been operated for more than ten years after the water storage,but the vertical displacement of its dam produced the "abnormal" phenomenon of dam foundation lifting and dam top settlement. By consulting engineering geological data,construction process data and related literatures,it is found that the geological conditions of the engineering dam site area are more complex, the mechanical parameters of different strata are significantly different, the rock strata are inclined downstream and the inclination angle is steep. The deformation characteristics of different elevation measuring points are different. This paper conducts a qualitative analysis of the vertical displacement "abnormal" phenomenon from many aspects such as geological incentives,dam building materials,and mechanical characteristics. Quantitative analysis methods such as macro-micro comparison and model calculation of the monitoring data were used to support the qualitative analysis conclusions of the proposed "abnormal" phenomenon of vertical displacement. Finally, a more reasonable conclusion was reached. The analysis ideas in this paper can provide reference for the analysis of monitoring data of similar projects.
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