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| 基于强度折减法的中断面黄土隧道施工方法研究 | |
| 引用本文： | 程选生,刘超,杜修力.基于强度折减法的中断面黄土隧道施工方法研究[J].特种结构,2012,29(3):46-49. |
| 作者姓名： | 程选生 刘超 杜修力 |
| 作者单位： | 1. 北京工业大学城市与工程安全减灾省部共建教育部重点实验室 100124;兰州理工大学土木工程学院 730050 2. 兰州理工大学土木工程学院 730050 3. 北京工业大学城市与工程安全减灾省部共建教育部重点实验室 100124 |
| 摘 要： | 为了研究中断面黄土隧道的开挖施工方法,本文借助有限元软件和抗剪强度折减法,对中断面黄土隧道的四种施工方法(全断面法、上下台阶法、台阶分部法和CD法)进行了有限元数值模拟,并获得了中断面黄土隧道施工中的抗剪强度安全系数。结果表明:对于中断面黄土隧道,CD法的施工安全系数最大,全断面法的施工安全系数最小,因此,对于中断面黄土隧道,建议采用CD法进行施工。 |
| 关 键 词： | 强度折减法 中断面 黄土隧道 施工方法 |
Construction Method Research of Middle Cross-section Loess Tunnel Based on Strength - reduction Method |
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| Cheng Xuansheng LiuChao Du Xiuli.Construction Method Research of Middle Cross-section Loess Tunnel Based on Strength - reduction Method[J].Special Structures,2012,29(3):46-49. | |
| Authors: | Cheng Xuansheng LiuChao Du Xiuli |
| Affiliation: | ( 1. Key Laboratory of Urban Security and Disaster Engineering of Education, Beijing University of Technology, 100124, China;2. School of Civil Engineering, l_anzhou University of Technology, 730050, China) |
| Abstract: | In order to study the excavation construction method about middle cross-section loess tunnel,the finite element analysis method and the shear strength reduction method are used to simulate the middle cross-section loess tunnel aiming to four construction technologies that are the full section method,up and down step method,stage division method and CD method,and then the shear safety factors are gotten.The results show that：for the middle crosssection loess tunnel,the safety factor is largest by the CD method,and is the smallest by the full section method.Certainly the CD method is advised for the construction of middle cross-section loess tunnel. |
| Keywords: | Strength-reduction method Middle cross-section Loess tunnel Excavation method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
