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煤巷与支护相互作用的冲击破坏试验与数值分析
Alternative TitleSimilar material simulation test and numerical analysis of impact damage law of roadway under interaction between coal and support
吕祥锋; 潘一山; 唐巨鹏; 肖晓春
Source Publication岩土力学
2012-02-15
Volume33Issue:2Pages:604-610
ISSN1000-7598
Abstract采用相似材料试验和数值模拟相结合的方法,对锚网锚杆、U型钢和吸能支护条件下煤岩巷道冲击破坏过程进行研究,揭示了巷道与支护相互作用下的巷道冲击破坏机制。试验和数值计算研究结果表明,不同支护作用下巷道冲击破坏规律表现基本一致,在冲击载荷作用下,巷道顶板有明显下沉,底板出现起鼓现象,两边帮均向巷道内部方向发生弯曲变形,形成裂缝,进而扩展和贯通,并有抛出物冲入巷道内。根据模型试验和数值计算结果可知,不同支护条件下冲击破坏程度不同,吸能支护具有良好的缓冲和吸能特性,巷道变形较小,整体稳定性好,更适合于冲击地压巷道的支护。
Other AbstractAdopting similar material simulation test and numerical simulation methods, the impact damage process of coal roadway under anchor bolt, U-steel and energy absorbing support are studied. The impact failure mechanism of roadway under interaction between coal and support is received. Similar material simulation and numerical results show that the impact damage laws under different support types are consistent with each other. Under impact loads, the roof sinks significant, the floor drum obvious, and the both sides have a large internal deformation; cracks expansion and through, even the coal thrown out. According to similar material simulation test and calculation results, it is shown that for different support types, different levels of impact damage, energy absorbing support has good cushioning and energy absorption characteristics, and advantages of small deformation and good stability. The test results also indicate that the energy absorbing support is better for rockburst roadway.
Keyword煤巷 相互作用 冲击破坏 相似材料试验 数值分析
Subject Area岩体力学和土力学
URL查看原文
Indexed ByCSCD ; EI
Language中文
Funding Organization国家重点基础研究发展规划(973计划)项目(No.2010CB226803); 国家自然科学基金面上项目(No.11072102);国家自然科学基金青年项目(No.51004061)
CSCD IDCSCD:4443626
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46455
Collection流固耦合系统力学重点实验室
Corresponding Author吕祥锋
Recommended Citation
GB/T 7714
吕祥锋,潘一山,唐巨鹏,等. 煤巷与支护相互作用的冲击破坏试验与数值分析[J]. 岩土力学,2012,33(2):604-610.
APA 吕祥锋,潘一山,唐巨鹏,&肖晓春.(2012).煤巷与支护相互作用的冲击破坏试验与数值分析.岩土力学,33(2),604-610.
MLA 吕祥锋,et al."煤巷与支护相互作用的冲击破坏试验与数值分析".岩土力学 33.2(2012):604-610.
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