| 优化与非优化复合锚固结构抗爆性能对比试验研究 |
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| 引用本文： | 赵林,曾宪明,李世民,林大路,陆卫国.优化与非优化复合锚固结构抗爆性能对比试验研究[J].岩土力学,2011,32(Z2):76-82. |
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| 作者姓名： | 赵林 曾宪明 李世民 林大路 陆卫国 |
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| 作者单位： | 湖南大学土木工程学院;河南科技大学建筑工程学院;总参工程兵科研三所; |
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| 基金项目： | 国家自然科学基金(No.10772199) |
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| 摘 要： | 优化复合锚固结构与非优化复合锚固结构均由土钉和在土钉端部设置的一定长度的经特殊处理的空孔段群即弱化孔群组成,二者的惟一差异是弱化孔长度不同,前者是优化的,后者是据经验确定的。为比较二者的抗爆性能,进行了对比试验研究。试验结果表明,非优化复合锚固结构的拱顶动应变峰值是优化复合锚固结构的2.1倍以上,非优化复合锚固结构的质点加速度峰值是优化复合锚固结构的2倍(拱顶)～5倍(底板),并与宏观结果相吻合,优化复合锚固结构的临界破坏抗力是非优化者的2.1倍以上,极限破坏条件下,拱顶下凸大变形尺度和面层脱落范围,优化复合锚固结构仅为非优化复合锚固结构的25%和33%。
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| 关 键 词： | 优化复合锚固结构 非优化复合锚固结构 抗爆性能 对比研究 |
| 收稿时间： | 2011-07-01 |
Comparative test study of blast-resistance performance of optimal composite anchorage structures and non-optimal composite anchorage structures |
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| ZHAO Lin,ZENG Xian-ming,LI Shi-min,LIN Da-lu,LU Wei-guo.Comparative test study of blast-resistance performance of optimal composite anchorage structures and non-optimal composite anchorage structures[J].Rock and Soil Mechanics,2011,32(Z2):76-82. |
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| Authors: | ZHAO Lin ZENG Xian-ming LI Shi-min LIN Da-lu LU Wei-guo |
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| Institution: | 1. College of Civil Engineering, Hunan University , Changsha 410082, China; 2. College of Civil Engineering and Architecture, Henan University of Science and Technology, Luoyang, Henan 471004, China; 3. The Third Engineer Scientific Research Institute of the Headquarters of the General Staff, Luoyang, Henan 471023, China; |
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| Abstract: | The optimal composite anchorage structures and non-optimal composite anchorage structures were constituted by soil nail and groups of fixed-length empty holes that regular setting in the end of soil nail.The only difference between that two kinds of structures is differ in length;the former is optimal and the latter is empirical.The comparative test results show that the dynamic strain of the non-optimal composite anchorage structure is 2.1 times higher than that of the optimal composite anchorage structure... |
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| Keywords: | optimal composite anchorage structure non-optimal composite anchorage structure blast-resistance comparative study |
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