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| 路堤下带帽控沉疏桩复合地基固结性状数值模拟 | |
| 引用本文： | 雷金波,周静南,徐士良,余学进.路堤下带帽控沉疏桩复合地基固结性状数值模拟[J].公路交通科技,2006,23(6):27-31,52. |
| 作者姓名： | 雷金波 周静南 徐士良 余学进 |
| 作者单位： | 1. 南昌航空工业学院,土木建筑系,江西,南昌,330034;河海大学,土木工程学院,江苏,南京,210098 2. 嘉兴学院南湖学院,理工系,浙江,嘉兴,314001 3. 安徽建筑工业学院,安徽,合肥,230022 4. 南昌航空工业学院,土木建筑系,江西,南昌,330034 |
| 摘 要： | 采用比奥固结平面有限元方法,分析研究了新建高速公路路堤填土过程中带帽控沉疏桩复合地基地表面沉降、竖向位移和侧向位移的变形特征,同时分析了超孔隙水压力产生与消散的变化规律.在复合地基加固区内存在等沉面现象,带帽控沉疏桩复合地基可以增强软土地基的稳定性.研究成果能为其理论研究、工程施工和设计提供有益的指导. |
| 关 键 词： | 带帽控沉疏桩复合地基 比奥固结有限元 竖向位移 侧向位移 超孔隙水压力 |
| 文章编号： | 1002-0268（2006）06-0027-05 |
| 收稿时间： | 2005-01-31 |
| 修稿时间： | 2005-01-31 |
Numerical Simulation of Concretion Behaviors for Composite Foundation with Sparse Capped Pile Settlement Control under the Embankment |
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| LEI Jin-bo,ZHOU Jing-nan,XU Shi-liang,YU Xue-jin.Numerical Simulation of Concretion Behaviors for Composite Foundation with Sparse Capped Pile Settlement Control under the Embankment[J].Journal of Highway and Transportation Research and Development,2006,23(6):27-31,52. | |
| Authors: | LEI Jin-bo ZHOU Jing-nan XU Shi-liang YU Xue-jin |
| Institution: | 1. Department of Civil and Architecture, Nanchang Institute of Aeronautical Technology, Jiangxi Nanchang 330034, China; 2. Department of Science and Engineering, Nanhu Institute of Jiaxing Institute, Zhejiang Jiaxing 314001, China; 3. Anhui Institute of Architecture and Industry, Anhui Hefei 230022, China; 4. School of Civil Engineering, Hohai University, Jiangsu Nanjing 210098, China |
| Abstract: | The deformation characters of the surface settlement, vertical displacement and side displacement of composite foundation with sparse capped pile settlement control in the process of embankment filling have been analyzed by the Biot concretion FEM, at the same time, the change patterns of the generation and dissipation of excessive pore water pressure have also been analyzed. There is equal settlement section in the reinforced area of the composite foundation, the sparse capped pile settlement controlled composite foundation can enhance the stability of soft ground. The results can provide useful guidance for theory study, the engineering construction and the design. |
| Keywords: | control settlement and sparse piles with cap composite foundation Biot concretion FEM vertical displacement lateral displacement excessive pore water pressure |
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