胶带巷围岩控制改进技术研究
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摘要
巷道掘进过程中会遇到很多的地质构造,围岩变形大,影响巷道的支护。针对南河煤业15#煤层围岩具体的地质情况,对巷道原有支护效果差的原因进行分析,确定巷道合理的支护形式和参数。对巷道顶底板和两帮的表面位移曲线和移近速度曲线进行分析表明,设计的锚固参数在地质构造段条件下是可行的。
During tunneling, many geological structures will be encountered, and large deformation of surrounding rock will affect roadway support. Aiming at the specific geological conditions of the surrounding rock of No.15 coal seam in Nanhe Coal Industry, this paper analyzes the reasons for the poor supporting effect of the original roadway, and determines the reasonable supporting form and parameters of the roadway. The analysis of the surface displacement curves and the approaching velocity curves of the roof and floor and the two sides of the roadway shows that the anchorage parameters designed are feasible under the condition of geological structure section.
During tunneling, many geological structures will be encountered, and large deformation of surrounding rock will affect roadway support. Aiming at the specific geological conditions of the surrounding rock of No.15 coal seam in Nanhe Coal Industry, this paper analyzes the reasons for the poor supporting effect of the original roadway, and determines the reasonable supporting form and parameters of the roadway. The analysis of the surface displacement curves and the approaching velocity curves of the roof and floor and the two sides of the roadway shows that the anchorage parameters designed are feasible under the condition of geological structure section.
引文
[1]于月鹏.井下地质构造对巷道支护的影响分析[J].能源与节能,2017(1):168-169.
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[4]赵斌,王亚杰,陈东印.构造区域巷道耦合让均压支护技术研究[J].煤炭科学技术,2013,41(s2):89-91+94.
[5]周美钢.综采工作面复杂地质构造带注浆技术研究[J].山东煤炭科技,2013(02):103-104.
[2]张景晁.煤矿地质构造带对巷道支护影响分析[J].煤矿现代化,2016(4):43-44.
[3]杨硕,杨丽娜.复杂地质构造区域巷道支护设计及其应用研究[J].内蒙古煤炭经济,2015(3):124+129.
[4]赵斌,王亚杰,陈东印.构造区域巷道耦合让均压支护技术研究[J].煤炭科学技术,2013,41(s2):89-91+94.
[5]周美钢.综采工作面复杂地质构造带注浆技术研究[J].山东煤炭科技,2013(02):103-104.