文档介绍：第 31 卷第 3 期岩土工程学报
2009 年 3 月 Chinese Journal of Geotechnical Engineering Mar. 2009
拱顶端部加密锚杆支护洞室抗爆加固效果模型试验研究
王光勇 1,2,顾金才 3,陈安敏 3,徐景茂 3,张向阳 3
(,河南焦作 454000;,安徽合肥 230026;
所,河南洛阳 471023)
摘要:采用抗爆模型试验方法,研究了在集中装药爆炸应力波的作用下,拱顶端部加密锚杆支护洞室抗爆效果。通
过分析压力时程曲线,证明测试数据规律性合理,数据可靠。分析和比较了拱顶端部加密锚杆支护洞室与不加密锚杆
支护洞室所造成的洞室围岩拱顶位移、洞壁应变、顶底板加速度和洞室宏观破坏形态,得出拱顶端部加密锚杆支护洞
室抗爆加固效果不佳。
关键词:拱顶端部加密锚杆支护;爆炸应力波;加固效果;模型试验
中图分类号:TU457 文献标识码:A 文章编号:1000–4548(2009)03–0378–06
作者简介:王光勇(1977–),男,江西抚州人,博士研究生,讲师,主要从事岩土工程动载试验研究方面的工作。E-mail:
******@.。
Model tests on anti-explosion anchoring effect of tunnels reinforced by
dense bolts at arch top
WANG Guang-yong1, 2, GU Jin-cai3, CHEN An-min3, XU Jing-mao3, ZHANG Xiang-yang3
(1. School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China; 2. Department of Modern Mechanics, University of
Science and Technology of China, Hefei 230026, China; 3. The Third Research Institute of the Corps of Engineers, General Staff of PLA,
Luoyang 471023, China)
Abstract: The anti-explosion model test methods are adopted to study the anchoring effect of the tunnels reinforced by dense
rock bolts at arch top under the explosive stress waves produced by focus charging. According to pressure temporal curves, it is
proved that the test data are proper and reliable. For the