|
|
|
| Study on anchor bolt mesh support in air return roadway in Madaotou Mine |
| Li Shengxin, Du Chaoyang |
| 1. Madaotou Mining Industry Corporation Ltd., Shanxi Datong Mining Group, Datong 037100, China; 2. College of Resources and Safety Engineering, China University of Mining and Technology ( Beijing ), Beijing 100083, China |
|
|
|
|
Abstract Based on the support difficulty in 5210 air return roadway in Madaotou Mine, combined with geological condition, the combined anchor bolt mesh suppose was given by theoretical analysis and site practice. The site observation showed that anchor bolt mesh support after 40 d enables to make roadway surrounding rock stable , the added sinkage was 120 mm, the two sides convergence less than 80 mm, the bottom heave was 50 mm. The support controlled the roadway deformation, improved the roadway stability and ensured the safe mining.
|
|
|
|
|
|
| [ 1 ] 王金华. 特厚煤层大采高综放开采关键技术[ J ]. 煤炭学报，2013，38（ 12 ）：2 089 - 2 098.
[ 2 ] 何富连，刘志阳，徐祝贺，等. 厚煤顶大断面开切眼复合预应力支护技术[ J ]. 煤矿安全，2014，45（ 01 ）：60 - 63．
[ 3 ] 张 勇，张 保，张春雷，等. 厚煤层采动裂隙发育演化规律及分布形态研究[ J ]. 中国矿业大学学报，2013，42（ 06 ）：935 - 940．
[ 4 ] 于 斌，刘长友，刘锦荣. 大同矿区特厚煤层综放回采巷道强矿压显现机制及控制技术[ J ]. 岩石力学与工程学报，2014，33（ 09 ）：1 863 - 1 872.
[ 5 ] 康红普．高强度锚杆支护技术的发展及应用[ J ]. 煤炭科学技术，2000，28（ 2 ）：1 - 4．
[ 6 ] 王旭宏，王玉怀，夏欢阁，等. 复杂条件下回采巷道锚网索支护参数优化研究[ J ]. 中国煤炭，2010，36（ 03 ）：48 - 51，55．
[ 7 ] 李化敏，蔡建德，韩和平，等. 朝川矿煤巷锚网索支护参数优化研究[ J ]. 采矿与安全工程学报，2006，（ 01 ）：95 - 98．
[ 8 ] 康红普，王金华，林 健. 煤矿巷道支护技术的研究与应用[ J ]，煤炭学报，2010，35（ 11 ）：1 809 - 1 814. |
|
|
|
