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| 沟谷软基区箱涵高路堤变形失稳三维数值模拟 | |
| 引用本文： | 芮勇勤,唐承平,肖春发,孔位学.沟谷软基区箱涵高路堤变形失稳三维数值模拟[J].东北大学学报(自然科学版),2006,27(7):814-818. |
| 作者姓名： | 芮勇勤 唐承平 肖春发 孔位学 |
| 作者单位： | 1. 东北大学,资源与土木工程学院,辽宁,沈阳,110004 2. 四川省川东高速公路有限责任公司,四川,广安,638500 3. 长沙理工大学,公路工程地质灾害研究所,湖南,长沙,410076 |
| 基金项目： | 交通部国家西部交通建设科技基金 |
| 摘 要： | 针对沟谷软基区复杂地形、不均匀非等厚软土分布地基,利用更能反映实际问题的三维数值模拟方法,采用Drucker-Prager模型进行数值求解,分析路基的沉降及变形,进行了路基病害机理研究,探讨修筑箱涵通道及高填路基而出现的变形与失稳问题,以及不均匀非等厚软土地基的处理与箱涵路堤反压护道等处治建议.总结了在道路工程建设当中遭遇同类性质问题时,设计与施工应当注意的问题和采取的有效措施. |
| 关 键 词： | 软基 箱涵 高路堤 三维数值模拟 变形失稳 |
| 文章编号： | 1005-3026（2006）07-0814-05 |
| 收稿时间： | 2005-09-02 |
| 修稿时间： | 2005年9月2日 |
3D Numerical Simulation of Deformation and Instability of High Embankment with Embedded Box Culvert in Soft-Base Gully/Valley Area |
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| RUI Yong-qin,TANG Cheng-ping,XIAO Chun-fa,KONG Wei-xue.3D Numerical Simulation of Deformation and Instability of High Embankment with Embedded Box Culvert in Soft-Base Gully/Valley Area[J].Journal of Northeastern University(Natural Science),2006,27(7):814-818. | |
| Authors: | RUI Yong-qin TANG Cheng-ping XIAO Chun-fa KONG Wei-xue |
| Institution: | (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) East Sichuan Freeway Co. Ltd., Guang'an 638500, China; (3) Institute of Highway Geological Breakage, Changsha University of Science and Technology, Changsha 410076, China |
| Abstract: | A 3D numerical simulation with solution by Drucker-Prager model is proposed for the complex terrain in a gully/valley area where the highway subgrade is soft with nonuniform thickness distribution.Analyzing the subsidence and deformation of high embankment and the damaging mechanism to it,the distortion and instability caused by the passage constructed for box culvert and highly earth-filled embankment are discussed.In addition,some suggestions are put forward to control the unevenly and unequally thick soft-soil foundation and berm for box culvert against back pressure.The problems and effective measures to take during the design/construction of the similar road projects are therefore summed up. |
| Keywords: | soft base box culvert high embankment 3D numerical simulation deformation instability |
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