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现代矿业 ›› 2024, Vol. 40 ›› Issue (04): 212-.
针对某矿大断面软岩巷道原锚网索喷支护后围岩变形量大问题，分析了巷道变形破坏
原因，提出采用锚网索喷+注浆加固的联合支护方式，以提高围岩整体支护强度，控制围岩大变形和
冒顶。通过工程实践，在监测180 d内，30~90 d围岩变形比较剧烈，120 d后逐渐趋于稳定，最大顶底
板变形量和两帮移近量分别为192，117 mm，控制效果明显。
In view of the large deformation of surrounding rock after the original bolt-mesh-cable⁃
shotcreting support in large section soft rock roadway in a mine，the causes of roadway deformation and fail⁃
ure are analyzed.The combined support method of bolt-mesh-cable-shotcreting + grouting reinforcement is
proposed to improve the overall support strength of surrounding rock and control the large deformation and
roof fall of surrounding rock.Through engineering practice，in the 180 days of monitoring，the deformation of
surrounding rock is more severe in 30 ~ 90 days，and gradually tends to be stable after 120 days. The maxi⁃
mum deformation of roof and floor and the convergence of two sides are 192 and 117 mm respectively，and
the control effect is obvious.
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