Systematic rock bolt support and shotcrete were carried out for the surrounding rock and reinforcement was done locally for rock stability.
对围岩采用系统喷锚支护,局部作加强处理,稳定性良好。
The article analysed national situation of bolt shotcrete and wire in soft rock, based on theory of broken-rock circle, concluded the relation of broken-rock circle and soft support.
本文分析了软岩巷道支护研究的国内外现状,以围岩松动圈理论研究为基础,得出围岩松动圈与软岩巷道支护的关系。
According to the characteristics of soft rock tunnel in Hongmiao coal mine, the rational support for the tunnel is suggested. The application of bolt and shotcrete support is described in detail.
依据红庙煤矿软岩巷道的特点,提出巷道合理的支护形式,详细阐述了锚喷支护在施工中的应用。
Based on the mechanism analysis of shotcrete-bolt support, the main cause of support failure was found to be the mismatch between its stiffness and ultimate distortion and the wall rock.
通过对喷锚支护机理进行分析,得出喷锚支护失效的主要原因在于喷锚支护的刚度和极限变形量与围岩不匹配。
Based on the mechanism analysis of shotcrete-bolt support, the main cause of support failure was found to be the mismatch between its stiffness and ultimate distortion and the wall rock.
通过对喷锚支护机理进行分析,得出喷锚支护失效的主要原因在于喷锚支护的刚度和极限变形量与围岩不匹配。
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