Nonlinear Analysis of Laterally Loaded Rock-Socketed Shafts
Nonlinear Analysis of Laterally Loaded Rock-Socketed Shafts
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DOI：
10.1061/(asce)1090-0241(2000)126:11(955
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发表时间：
2000-11
影响因子：
3.9
通讯作者：
Lianyang Zhang;H. Ernst;H. Einstein
中科院分区：
文献类型：
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作者：
Lianyang Zhang;H. Ernst;H. Einstein
本文提出了一种非线性连续体方法来预测钻井竖井在侧向荷载作用下的荷载-位移响应。该方法可以考虑由覆盖在岩体层上的土层组成的连续体中的钻孔井。假定土的变形模量随深度线性变化，假定岩体的变形模量随深度线性变化，然后在井尖以下保持恒定。考虑土和/或岩体屈服对竖井行为的影响，假设土和/或岩体在小应变水平下表现为线性弹性，当土和/或岩体反力p（力/长度）超过极限阻力p（力/长度）时屈服。对于土的极限阻力的计算，采用了文献中可用的方法。为了计算岩体的极限阻力，提出了基于Hoek-Brown强度准则的计算方法。提出……
In this paper, a nonlinear continuum method is developed to predict the load-displacement response of drilled shafts under lateral loading. The method can consider drilled shafts in a continuum consisting of a soil layer overlying a rock mass layer. The deformation modulus of the soil is assumed to vary linearly with depth, and the deformation modulus of the rock mass is assumed to vary linearly with depth and then to stay constant below the shaft tip. The effect of soil and/or rock mass yielding on the behavior of shafts is considered by assuming that the soil and/or rock mass behaves linearly elastically at small strain levels and yields when the soil and/or rock mass reaction force p (force/length) exceeds the ultimate resistance pult (force/length). For the calculation of the ultimate resistance pult of the soil, methods that are available in the literature are used. To calculate the ultimate resistance pult of the rock mass, a method based on the Hoek-Brown strength criterion is proposed. The propose...