厚煤层综放开采动压影响巷道补强加固技术研究  

Strengthening Technology of Roadway Influenced by Dynamic Pressure in Fully-mechanized Caving Mining of Thick Coal Seam

作　　者：刘骏 LIU Jun(Shanxi Fenxi Zhengcheng Coal Industry Co.,Ltd.,Lvliang 032300,Shanxi,China)

机构地区：[1]山西汾西正城煤业有限责任公司,山西吕梁032300

出　　处：《能源与节能》2025年第1期130-132,共3页Energy and Energy Conservation

摘　　要：为解决厚煤层综放开采动压影响巷道围岩变形量大的问题,以六采区南翼回风大巷围岩控制为工程背景,分析了影响回风大巷围岩变形的主控因素,提出了通过增强围岩承载能力和支护强度等方式,以控制动压影响巷道围岩的变形情况,并依据六采区南翼回风大巷现场的地质条件,制定了具体的补强加固技术方案。工程应用后,回风大巷在后续使用期间围岩变形严重的问题得以解决,在6305工作面采动影响下顶板位移量控制在了58 mm以内,变形量整体较小,且未出现锚杆索失效或喷浆层破裂等情况,现场采用的补强加固技术效果显著,可有效应对动压影响。In order to solve the problem of large deformation of roadway surrounding rock caused by dynamic pressure in fully-mechanized caving mining of thick coal seam,the main control factors affecting the deformation of surrounding rock of air return roadway in the south wing of the sixth mining area were analyzed,and methods such as enhancing the bearing capacity and supporting strength of surrounding rock were proposed to control the deformation of roadway surrounding rock affected by dynamic pressure.And according to the geological conditions of the air return roadway in the south wing of the sixth mining area,the concrete reinforcement technical scheme was formulated.After the engineering application,the problem of serious deformation of surrounding rock during the subsequent use of the air return roadway can be solved.Under the influence of mining 6305 working face,the displacement of the roof was controlled within 58 mm,the deformation was small on the whole,and there was no failure of the anchor cable or fracture of the gunite layer,etc.The reinforcement and reinforcement technology adopted on site had remarkable effect,and can effectively cope with the influence of dynamic pressure.

关 键 词：厚煤层 综放开采 锚网索补强 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]