|
|||||
|
|
| 破碎带工程围岩超前锚杆加固拱结构 | |
| 引用本文： | 周桥, 高谦. 破碎带工程围岩超前锚杆加固拱结构[J]. 工程科学学报, 2010, 32(6): 697-701. DOI: 10.13374/j.issn1001-053x.2010.06.002 |
| 作者姓名： | 周桥 高谦 |
| 作者单位： | 北京科技大学土木与环境工程学院,北京,100083;金川集团公司,金昌,737100;北京科技大学土木与环境工程学院,北京,100083 |
| 基金项目： | 国家科技支撑计划;国家高技术研究发展计划（863计划） |
| 摘 要： | 在破碎带岩层开挖时,顶板极易垮落,通常采用超前锚杆加固来做辅助支护.为了研究工程围岩超前锚杆加固机理及其位移变化规律,把这种开挖形成的拱看成有几何缺陷的圆弧拱.以武平紫金矿业230斜坡道在破碎带中超前锚杆加固为工程实例,利用屈曲理论及薄膜理论对其位移的变化进行了力学分析,完善了前人对这种加固拱简化的问题. |
| 关 键 词： | 破碎带 超前支护 拱结构 屈曲理论 |
| 收稿时间： | 2009-07-07 |
Arch structure of bolt forepoling in surrounding fractured rock |
|
| ZHOU Qiao, GAO Qian. Arch structure of bolt forepoling in surrounding fractured rock[J]. Chinese Journal of Engineering, 2010, 32(6): 697-701. DOI: 10.13374/j.issn1001-053x.2010.06.002 | |
| Authors: | ZHOU Qiao GAO Qian |
| Abstract: | When the rock is difficult to cut and support in fracture zones,forepoling is usually used as auxiliary reinforcement support.In order to study the arch structure mechanism of bolt forepoling in surrounding fractured rock and its displacement evolution,bolt forepoling at the Ramp 230 in Wupin Zijin Mining Company was taken as an example,and the displacement evolution of the arch structure,which is taken as a flawed one,was analyzed on the basis of the buckling theory and the membrane theory.This study improves the simplification problem of reinforced arches. |
| Keywords: | fracture zone forepoling arch structure buckling theory |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《工程科学学报》浏览原始摘要信息 | |
| 点击此处可从《工程科学学报》下载全文 | |