A Three-Section-Settlement Calculation Method for Composite Foundation Reinforced by Geogrid-Encased Stone Columns
A Three-Section-Settlement Calculation Method for Composite Foundation Reinforced by Geogrid-Encased Stone Columns
复制标题
土工格栅围岩石柱复合地基三段沉降计算方法
DOI：
10.1155/2021/5576713
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发表时间：
2021-04
影响因子：
1.8
通讯作者：
Cao Rihong
中科院分区：
文献类型：
--
作者：
Ma Binhui;Hu Zhiyong;Li Zhuo;Cai Kai;Zhao Minghua;He Chengbin;Chen Qiunan;Chen Bingchu;Huang Xiaocheng;Cao Rihong
分析了土工格栅碎石桩复合地基的承载特性和变形机理，提出了土工格栅碎石桩复合地基的沉降计算方法。将复合地基沉降分为加筋段、未加筋段和下卧层三个部分。基于空间问题的虎克定律和分层总和法的思想，分析了无塑性区加筋段桩土之间的相对滑移位移。基于桩单元模型，采用分层迭代法计算加筋段沉降。基于桩-土单元模型，分析了无筋段竖向和径向变形的协调性。下卧层沉降仍按分层总和法计算。最后，对两个工程实例进行了分析，结果表明，该方法计算的沉降与实测沉降比较接近。该方法克服了现有其他方法计算结果偏于危险的缺陷，具有较强的可行性，可在工程实践中应用。
The analysis of the bearing characteristics and deformation mechanism of composite foundation reinforced with geogrid-encased stone columns is presented in order to obtain its settlement calculation method. The settlement of composite foundation is divided into three sections which are the reinforced section, unreinforced section, and underlying stratum. Based on Hooke’s law of space problem and the thoughts of the layer-wise summation method, the relative slip displacement between pile and soil of reinforced section without plastic zone is analyzed. The settlement of reinforced section is calculated by the layered iteration method based on the pile element model. The compatibility of vertical and radial deformations of unreinforced section is analyzed based on the pile-soil element model. The settlement of underlying stratum is still calculated by the layer-wise summation method. Finally, two engineering examples are analyzed and the results show that the settlement calculated by the presented method is close to the measured one. The method overcomes the defect that the calculated results by the other existing methods are more dangerous and it is more feasible and can be applied in engineering practice.
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影响因子：
5.3
作者：
R. Cao;Changsong Wang;Rubing Yao;Tao Hu;Daxing Lei;Hang Lin;Yanlin Zhao
通讯作者：
R. Cao;Changsong Wang;Rubing Yao;Tao Hu;Daxing Lei;Hang Lin;Yanlin Zhao
影响因子：
--
作者：
W. Bao
通讯作者：
W. Bao
影响因子：
5.4
作者：
R. Cao;Rubing Yao;Tao Hu;Changsong Wang;Kaihui Li;J. Meng
通讯作者：
R. Cao;Rubing Yao;Tao Hu;Changsong Wang;Kaihui Li;J. Meng
DOI：
10.16285/j.rsm.2015.06.035
发表时间：
2015
期刊：
--
影响因子：
--
作者：
王纯子;赵阳;陈昌富
通讯作者：
王纯子;赵阳;陈昌富
DOI：
10.1007/s10064-020-02066-5
发表时间：
2021-01
影响因子：
4.2
作者：
Xin Tan;Longjian Feng;Zhengbo Hu;Ming-hua Zhao
通讯作者：
Xin Tan;Longjian Feng;Zhengbo Hu;Ming-hua Zhao