| 强震区桥台地基沉陷失效破坏机理研究 |
| |
| 引用本文： | 向庆刚,陈洪凯,廖云平,刘荣灿. 强震区桥台地基沉陷失效破坏机理研究[J]. 重庆交通大学学报(自然科学版), 2011, 0(Z1): 563-565 |
| |
| 作者姓名： | 向庆刚 陈洪凯 廖云平 刘荣灿 |
| |
| 作者单位： | 重庆地质矿产研究院;重庆交通大学岩土工程研究所 |
| |
| 摘 要： | 针对汶川地震中大量桥台地基出现沉陷失效现象,对地震作用下桥台地基沉陷进行了理论研究.基于Prandtl 破坏面理论和Coulomb楔体平衡条件,并考虑地震力和接触面剪切摩擦的影响,采用Mononobe - Okabe地震公式,得出地震作用下地基承载力计算公式,据此对地震下地基强度降低现象进行安全评定.
|
| 关 键 词： | 强震区 桥台 地基 沉陷失效 破坏机理 |
Mechanism Study on Ground Subsidence Damage of Abutment Failure in Meizoseismal Area |
| |
| XIANG Qing-gang,CHEN Hong-kai,LIAO Yun-ping,LIU Rong-can. Mechanism Study on Ground Subsidence Damage of Abutment Failure in Meizoseismal Area[J]. Journal of Chongqing Jiaotong University, 2011, 0(Z1): 563-565 |
| |
| Authors: | XIANG Qing-gang CHEN Hong-kai LIAO Yun-ping LIU Rong-can |
| |
| Affiliation: | 1,2) (1.Institute of Geology & Mineral Resources of Chongqing,Chongqing 400042,China; 2.Institute of Geotechnical Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
| |
| Abstract: | For a large number of abutment foundation failure and subgrade subsidence occurred in Wenchuan earthquake,a study on the bridge abutment ground subsidence under earthquake was made.Based on Prandtl theory and Coulomb wedge equilibrium condition,Mononobe-Okabe earthquake formula was adopted considering the impact of shear friction force of interface and the calculating formula of ground bearing capacity under earthquake was made out.According to this formula, the safety assessment of the foundation intensity reduced in earthquake could be easily carried out. |
| |
| Keywords: | earthquake zone abutment foundation settlement failure failure mechanism |
| 本文献已被 CNKI 等数据库收录！ |
|
