欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
考虑到传统浅埋土体隧洞松散压力计算方法存在三个缺陷：一是模型破坏面计算范围过大;二是两侧阻滑力计算不准;三是没有考虑外界不利因素的影响。本文提出了两种计算方法避免了这些缺陷。一种是基于弹塑性理论和极限平衡理论,即采用有限元极限分析法来求解浅埋隧洞松散压力;另一种是将岩柱理论的破坏范围作了一定修改,并考虑了外界不利影响,提出了修正的岩柱理论。两种计算方法有较严格的力学依据,计算结果与实际情况更加相符,为求解浅埋土体隧洞松散压力提供了两种新的方法。
英文摘要：
Considering three defects in traditional loosening pressure calculation of shallow-buried soil tunnel, that is, first, the calculation range of model failure surface is too large; Second, the friction calcluation is not accurate ; and Third, the disadvantageous factors are ignored. This paper presents two kinds of calculation methods to avoid these defects. One is based on the limiting equilibrium theory and elastic-plastic theory to calculate loosening pressure, the other one is the rock column theory with damage range modified, which is the so-called modified rock column theory, this method takes account of disadvantageous effect. These two methods have strict mechanical basis, and calculating results are more close to actual situation. This paper provides two new methods for calculating the loosening pressure of shallow-buried tunnel.
同期刊论文项目
同项目期刊论文
期刊信息
位置：