| 锚固洞室拱部侧爆模型试验 |
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| 引用本文： | 张献文,沈俊,陈安敏,张伟,杨为民.锚固洞室拱部侧爆模型试验[J].河南科技大学学报(自然科学版),2010,31(1):58-61. |
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| 作者姓名： | 张献文 沈俊 陈安敏 张伟 杨为民 |
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| 作者单位： | 1. 河南科技大学,建筑工程学院,河南,洛阳,471003
2. 总参工程兵科研三所,河南,洛阳,471023 |
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| 基金项目： | 国家自然科学基金项目(10772199) |
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| 摘 要： | 通过室内模型试验,从洞室破坏形态、破坏过程、围岩径向应力、洞壁应变、拱顶和边墙位移、拱顶和底板加速度6个方面对直墙拱顶型锚固洞室在集中装药拱部侧爆条件下破坏情况和受力变形特点进行研究。试验结果表明:在拱部侧爆情况下,洞室破坏主要发生在迎爆侧半拱,破坏类型是在拱脚发生剪切破坏,在半拱中部发生拉伸破坏,洞室围岩径向应力是破坏的主要控制因素。洞室围岩以受压为主,变形主要表现为拱部和迎爆侧边墙向洞内发生位移。根据加速度测试数据,该类洞室设计时必需采取减震措施。
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| 关 键 词： | 锚固洞室 集中装药 拱部侧爆 模型试验 |
Model Test Study of Reinforced Tunnel Subjected to Explosion Load from the Oblique Upper Site of Vault |
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| ZHANG Xian-Wen,SHEN Jun,CHEN An-Min,ZHANG Wei,YANG Wei-Min.Model Test Study of Reinforced Tunnel Subjected to Explosion Load from the Oblique Upper Site of Vault[J].Journal of Henan University of Science & Technology:Natural Science,2010,31(1):58-61. |
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| Authors: | ZHANG Xian-Wen SHEN Jun CHEN An-Min ZHANG Wei YANG Wei-Min |
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| Institution: | 1.Architectural Engineering College/a>;Henan University of Science & Technology/a>;Luoyang 471003/a>;China/a>;2.The Third Engineer Scientific Research Institute of the Headquarters of the General Staff/a>;Luoyang 471023/a>;China |
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| Abstract: | By model test,the damage and the deformation characteristics of reinforced tunnel,which are straight wall and vault at mass charge,bearing explosion load from the oblique upper site of vault,are studied from six aspect of destruction form,destruction course,stress in surrounding rock,surface strain of underground tunnel,the displacements of roof and sidewall,accelerations of roof and floor.Some conclusions are drawn from the model test results.Firstly,the weakest position is semiarch facing the charge,and t... |
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| Keywords: | Reinforced tunnel Mass charge Explosion load from the oblique upper site of vault Model test |
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