特大型嵌岩墙式基础水平力承载静力分析  

The Static Analysis of Especially Large Embedded Rock Wall Foundations Bearing Horizontal Loads

作　　者：任文敏[1] 苏继宏[1] 汪正兴[1] 杨振宇[2] 周军生[2] 

机构地区：[1]清华大学工程力学系,北京100084 [2]北京建达道桥咨询公司,北京100101

出　　处：《桥梁建设》2002年第4期19-21,24,共4页Bridge Construction

摘　　要：分别采用三维模型、二维模型和一维模型对特大型嵌岩墙式基础水平承载进行了分析 ,比较了 3种模型的差异 ,分析了引起这些差异的重要因素 ,最后用二维模型探讨了一些规律。通过计算发现 ,基础埋深H对基础最大截面弯矩位置HM 和最大截面弯矩幅值Mmax的影响较小 ,而岩石与基础的弹性模量比λ和基础截面的高度L对HM 和Mmax的影响较大。The especially large embedded rock wall foundations bearing horizontal loads were analyzed with three different models (three-dimension model, two-dimension model and one-dimension model). The differences of the three models were compared and the factors that caused the differences were analyzed. Some rules were given by computation using the two-dimension model. The computation showed that the elastic modulus ratio λ of rock to foundations and the height L of a foundation section greatly influenced the max section moment M max and the location H M of the max section moment, but the depth H of a foundation influenced little.

关 键 词：特大型嵌岩墙式基础 水平力 承载力 力学分析 连续刚构桥梁 桥墩 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]