考虑侧向变形与流变的<em>e</em>-lg<em>p</em>法的探讨

王志亮; 李永池; 郑明新; 殷宗泽; 吴克海

doi:10.13204/j.gyjz200410011

考虑侧向变形与流变的e-lgp法的探讨

doi: 10.13204/j.gyjz200410011

1.
1. 中国科技大学工程科学学院合肥 230026;
2.
2. 华东交通大学道桥与岩土工程研究所南昌 330013;
3.
3. 河海大学岩土工程研究所南京 210098;
4.
4. 江西省高等级公路管理局南昌 330046

详细信息

作者简介:
王志亮男 1969年3月出生博士后

中图分类号: U416.1
计量
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- 被引次数: 0
出版历程
- 收稿日期: 2004-05-23
- 刊出日期: 2004-10-20

EXPLORATION OF e-lgp METHOD TAKING ACCOUNT OF RHEOLOGY AND LATERAL DEFORMATION

1.
1. Engineering Science School,University of Science and Technology of China Hefei 230026;
2.
2. Institute of Bridge Road and Geotechnical Engineering,East China Jiaotong University Nanchang 330013;
3.
3. Institute of Geotechnical Engineering,Hohai University Nanjing 210098;
4.
4. Expressway Administration Bureau of Jiangxi Province Nanchang 330046

摘要

摘要: 在高速公路沉降计算中，有限元法虽能同时考虑土体侧向变形和流变对沉降的影响，但运算较繁琐，难以被一般工程技术人员掌握。在有限元计算的基础上，得出了一个沉降计算综合修正式，它使得单向e-lgp法得出的主固结沉降修正后可考虑土体侧向变形；并且，基于次压缩与荷载相关事实，建议在次压缩计算中采用绝对时间坐标系，并对传统的次压缩计算公式进行了修正。把这两方面综合到高速公路沉降的e-lgp法计算中，使得一维法可以同时考虑侧向变形与流变。实例计算表明，按此思路计算结果精度高、易于掌握，具有一定的实用价值。
- e-lgp法 /
- 侧向变形 /
- 流变 /
- 绝对时间坐标系
Abstract: Finite element method can consider not only soil lateral deformation but also rheology during settlement calculation of highway, but the course is more numerous and not easily mastered by common engineering technicians.With a lot of nonlinear finite element method calculations, one settlement general modification formula is brought out, which may cause the e-lgp method to consider lateral deformation, then, based on the fact of secondary compression related to loadings, the absolute time coordinate sy stem is suggested for secondary compression calculation, by the traditional secondary compression calculation formula is rectified.Thus, during the 1-D settlement calculation of highway, the thing that in consideration of rheology and lateral deformation can become reality when combined the above two sides.This thought can cause more accurate results and can be lightly mastered, so it has definite using value in practical engineering.
- e-lgp method /
- lateral deformation /
- rheology /
- absolute time coordinate system