| 锚杆支护参数设计方法研究 |
| |
| 引用本文： | 王 明. 锚杆支护参数设计方法研究[J]. 中州煤炭, 2019, 0(10): 174-176，180. DOI: 10.19389/j.cnki.1003-0506.2019.10.039 |
| |
| 作者姓名： | 王 明 |
| |
| 作者单位： | （河南能源化工集团 永煤公司车集煤矿，河南 永城 476600） |
| |
| 摘 要： | 为了确保巷道围岩稳定，提高巷道掘进速度，以某矿301工作面回风巷为例，根据实际地质概况，分析了不同锚杆间排距、锚杆长度、锚杆直径和锚杆预应力下巷道围岩表面位移情况。研究得出了，锚杆间排距设置为800 mm，锚杆长度设置为2 200 mm，锚杆直径设置为20 mm，锚杆预应力设置为30 kN，此时巷道支护参数最优。研究为类似工程条件下巷道支护参数选择提供了借鉴。
|
| 关 键 词： | 锚杆间排距 锚杆长度 锚杆直径 锚杆预应力 围岩表面位移 |
Research on design method of bolt support parameters |
| |
| Wang Ming. Research on design method of bolt support parameters[J]. Zhongzhou Coal, 2019, 0(10): 174-176，180. DOI: 10.19389/j.cnki.1003-0506.2019.10.039 |
| |
| Authors: | Wang Ming |
| |
| Affiliation: | （Juji Coal Mine，Yongcheng Coal Company，Henan Energy and Chemical Industry Group，Yongcheng 476600，China） |
| |
| Abstract: | In order to determine the stability of roadway surrounding rock and improve the speed of roadway excavation，taking the return air duct of 301 working face of a mine as an example，according to the actual geological profile，the displacement of surrounding rock of roadway under different row spacing，length，diameter and prestressing of bolt are analyzed.The research shows that the row spacing between bolts is set to 800 mm，the length of bolts is set to 2 200 mm，the diameter of bolts is set to 20 mm，and the prestress of bolts is set to 30 kN，at this time，roadway support parameters are optimal.The study draws lessons from the selection of roadway support parameters under similar engineering conditions. |
| |
| Keywords: | spacing between bolts length of bolt diameter of bolt prestress of anchor displacement of surrounding rock surface |
|
| 点击此处可从《中州煤炭》浏览原始摘要信息 |
|
点击此处可从《中州煤炭》下载免费的PDF全文 |
