| 软基侧向变形对邻近桥台及桩基的影响和防治 |
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| 引用本文： | 谢洪涛,杨春和.软基侧向变形对邻近桥台及桩基的影响和防治[J].岩土力学,2002,23(6):742-746. |
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| 作者姓名： | 谢洪涛 杨春和 |
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| 作者单位： | 中科院武汉岩土力学研究所岩土力学重点实验室,湖北,武汉,430072 |
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| 摘 要： | 基于非线性粘弹性理论，描述了土体的蠕变特性，并对某小桥桥台挡板开裂原因进行分析，同时对修建在软土中桩基与土、桥台及台背填土的相互作用进行了有限元计算，得出软土侧向挤出是挡板开裂原因的结论。对加铺地基梁的加固效果进行了计算，提出用改变工序来减少土体侧向挤出的方法，对用修建浅平基础代替桩基的工程效果进行有限元计算，论证了使用浅平基础的可行性。
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| 关 键 词： | 侧向变形 桥台 桩基 软土 蠕变 沉降 桥梁 软土地基 |
| 文章编号： | 1000-7598-(2002)06-0742-05 |
| 收稿时间： | 2002-05-09 |
| 修稿时间： | 2002年5月9日 |
Discussion on the influence of lateral deformation of soft foundation on nearby bridge-pier and piled foundation and its countermeasures |
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| XIE Hong-tao,YANG Chun-he.Discussion on the influence of lateral deformation of soft foundation on nearby bridge-pier and piled foundation and its countermeasures[J].Rock and Soil Mechanics,2002,23(6):742-746. |
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| Authors: | XIE Hong-tao YANG Chun-he |
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| Institution: | Key Laboratory of Rock and soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | A nonlinear viscoelastic model is introduced to describe the creep behaviors of soft soil. The model is used to analyze the damaged board of a bridge-pier. The finite element computation is used to make out the reason of the damaged board of a bridge-pier. The result of the computation shows that the lateral force caused by soft clay is the main reason of the damage of the board. The effect of the reinforcing measure was computed. A method to change the building step was advanced to solve the problem. The substitution of pile with shallow foundation was computed; and the feasibility of applying shallow foundations is also demonstrated. |
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| Keywords: | soft clay creep settlement of soft foundation piled foundation for pier of bridge |
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