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击振条件下围岩松动圈试验研究
- 樊海云|陈清运|卢骏|曾顺洪|徐正碧
- 作者单位：
- 武钢资源集团金山店矿业有限公司|武汉工程大学资源与安全学院|武钢资源集团程潮矿业有限公司|云南磷化集团有限公司|云南磷化集团有限公司
基金项目：
- 国家自然科学基金面上项目（52174086）
详细信息：
- 作者简介：
- 樊海云（1983—），男，工程师，从事金属矿山地下开采技术管理工作；E-mail:94796171@qq.com
- 通讯作者：
- 陈清运（1964—），男，教授，从事采矿工程教学与研究工作；E-mail:qingyun2.chen@163.com
- PDF下载
Experimental study on loose circles of surrounding rock under shock vibration condition
- English Author：
- Jinshandian Mining Co.,Ltd.of Wuhan Iron and Steel Resources Group|School of Resources & Safety Engineering,Wuhan Institute of Technology|Chengchao Mining Co.,Ltd.of Wuhan Iron and Steel Resources Group|Yunnan Phosphate Group Co.,Ltd.|Yunnan Phosphate Group Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
为精确掌握巷道围岩松动圈的范围，合理优化巷道锚杆支护参数，通过自研测力锚杆对巷道围岩松动圈进行测试，得到巷道围岩各部位松动圈变化范围为：顶部、紧邻顶部、起拱部位及直墙部位巷道松动圈厚度均值分别为1 070 mm、985 mm、997 mm及970 mm；巷道平均围岩松动圈为1 016 mm，属于中等围岩松动圈。基于数值模拟软件Flac3D对试验所得松动圈值进行验证，二者所得结果接近，验证了试验结果的准确性。
关键词:
巷道支护；击振；测力锚杆；围岩松动圈；Flac3D软件
Abstract:
In order to accurately grasp the range of loose circles of roadway surrounding rock and reasonably optimize the parameters of roadway bolt support,the loose circle of roadway surrounding rock was tested by self-developed force-measuring bolt,and the change range of loose circle of roadway surrounding rock was obtained as follows:the average thickness of loose circles of roadways at the top,adjacent to the top,at the bulging and straight wall was 1 070 mm,985 mm,997 mm and 970 mm respectively;the average loose circle of roadway surrounding rock is 1 016 mm,which belongs to a medium loose circle of the surrounding rock.Based on the numerical simulation software Flac3D,the values of the loose circle obtained from the test are verified,and the results are close to each other,which verifies the accuracy of the test results.
Keywords:
roadway support;shock vibration;force-measuring bolt;loose circle of surrounding rock;Flac3Dsoftware
