黄河玛尔挡水电站坝基岩体强度特性与参数取值  

Rock mass strength characteristics of dam foundation of Maerdang Hydropower Station on Yellow River and parameter determination

作　　者：巨广宏[1,2] 吕生弟[2] 宋彦辉[3] 王淼[2] 

机构地区：[1]成都理工大学环境与土木工程学院,四川成都610059 [2]中国水电顾问集团西北勘测设计研究院,陕西西安710065 [3]长安大学,陕西西安710054

出　　处：《人民长江》2011年第9期50-54,共5页Yangtze River

摘　　要：为了获取黄河玛尔挡水电站大坝坝基岩体抗剪强度参数(f、c值),为大坝设计、两岸坝肩抗力体稳定分析、地下洞室围岩稳定分析等提供依据,根据玛尔挡水电站坝址区岩体强度试验成果,结合试验点地质特征,利用最小二乘法、优定斜率法等数理统计方法,对坝基岩体强度特性进行了分析,并合理选取强度标准值,最终给出了坝基岩体强度参数建议值。In order to obtain rock mass shear strength parameters（f,c） of dam foundation of Maerdang Hydropower Station to provide basis for dam design,stability analysis of dam abutments and surrounding rock mass of underground house,based on in-site rock mass strength test results in the dam site area and in combination with geological characteristics at test points,the rock mass strength of dam foundation are analyzed using mathematical statistics method such as least square method and predominant slope method,etc..The standard strength values are reasonably determined and the suggested values for dam foundation rock mass are put forward.

关 键 词：坝基岩体 抗剪强度 优定斜率法 最小二乘法 参数取值 玛尔挡水电站 

分 类 号：TU45[建筑科学—岩土工程]