喷锚支护洞室抗爆现场试验洞顶位移研究

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 English Version

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

详细信息

作者简介:
马海春 (1983 – ) ，男，安徽滁州人，博士研究生，从事岩土工程研究与结构抗爆。

中图分类号: TD235
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出版历程
- 收稿日期: 2010-10-25
- 发布日期: 2012-02-19

Displacement at top of underground cavern reinforced by grouted bolts during site explosion resisting tests

1 . Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China; 2. The Third Scientific Research Institute of the Corps of Engineers, General Staff of PLA, Luoyang 471023, China

摘要

摘要: 地下工程设施的稳定性是岩土工程重要研究内容，如何提高爆炸荷载下洞室的抗爆能力对国防和民用工程都有重要的意义。因此，开展现场洞室抗爆实验研究有着重要的战略意义。从喷锚支护洞室抗爆现场试验角度，介绍不同的支护条件即长密锚杆、短密锚杆、常规锚杆三种不同条件下洞顶部位在上部爆炸条件下洞顶位移的特征。另外，对使用两种不同垫板的锚杆支护下洞顶位移做了对比，分析得到碗形垫板支护效果好于板形垫板支护效果的结论。文中还分析了洞顶与洞室跨度相对位移与爆炸比例距离的关系。通过本次试验以寻找最好的锚固效果，为实际工程提供借鉴。
- 抗爆能力 /
- 洞室 /
- 锚杆 /
- 位移 /
- 试验
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 underground 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.
- explosion resisting capacity /
- underground cavern /
- bolt /
- displacement /
- test

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参考文献(10)

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