岩土工程学报2012，Vol.34Issue(2)：369-372,4.
喷锚支护洞室抗爆现场试验洞顶位移研究
Displacement at top of underground cavern reinforced by grouted bolts during site explosion resisting tests
马海春 1顾金才 2张向阳 2徐景茂 2高光发1
作者信息
- 1. 中国科学技术大学近代力学系,安徽合肥230027
- 2. 总参工程兵科研三所,河南洛阳471023
- 折叠
摘要
Abstract
The stabilities of underground facilities are the important research contents of geotechnical engineering. It is meaningful to improve the explosion resisting abilities of underground caverns for national defense and civil projects. So it has important strategic significance to carry out site explosion resisting tests on underground caverns. The displacement characteristics at the top of an tmderground cavern under three different conditions are introduced, that is long and close cables, short and close cables and regular cables. Furthermore, the situations that two kinds of base plates are used for cables to protect the displacement of the top of the cavern are compared. A conclusion that the protecting effects of flaring cup base plates are better than paddle base plates is put forward. This passage also analyses the relationship between the relative displacement at the top of the cavern divided by the span of the cavern and the scale distance of the explosion is analyzed. It is helpful for searching for the best protecting effects for practical projects.关键词
抗爆能力/洞室/锚杆/位移/试验Key words
explosion resisting capacity/underground cavern/bolt/displacement/test分类
矿业与冶金引用本文复制引用
马海春,顾金才,张向阳,徐景茂,高光发..喷锚支护洞室抗爆现场试验洞顶位移研究[J].岩土工程学报,2012,34(2):369-372,4.
