软硬层叠岩体巷道分级支护方法及其应用  

Tunnel classification support method of soft and hard layered rock mass and its application

作　　者：龙翼[1] 严鹏 陈绍民 皇甫风成 Long Yi;Yan Peng;Chen Shaomin;Huangfu Fengcheng(Zijin Mining Group Co.,Ltd.;Fuyun Jinshan Mining and Metallurgy Co.,Ltd.)

机构地区：[1]紫金矿业集团股份有限公司 [2]富蕴金山矿冶有限公司

出　　处：《黄金》2023年第1期8-11,共4页Gold

基　　金：中国黄金协会团体标准计划项目(2021-T-102002);紫金矿业集团股份有限公司2022年第一批科技计划项目(5119KY2021120002,5119KY2021120004)。

摘　　要：针对软硬层叠岩体巷道稳固性差异大,巷道支护质量参差不齐、支护成本高、掘进速度慢等问题,采用综合方法对软硬层叠岩体巷道围岩进行分级,结合技术标准要求和典型巷道支护工程实践经验,提出了软硬层叠岩体Ⅰ~Ⅴ级巷道的支护方式及其参数指标范围。在蒙库铁矿床东矿段铁矿典型软硬层叠岩体工程地质条件下,巷道分级支护设计和施工简洁高效,应用效果明显。In light of the problems such as large differences in roadway stability,uneven roadway support quality,high support cost,and slow tunneling speed,a comprehensive method was adopted to classify roadway surrounding rock of soft and hard layered rock mass.Combined with technical standard requirements and typical roadway support engineering practice experience,the support modes ofⅠ-Ⅴgrade roadway of soft and hard layered rock mass and their parameter index range values were proposed.Under the engineering geological conditions of typical soft and hard layered rock mass in the east section of Mengku Iron Deposit,the design and construction of roadway classification support are simple and efficient,and the application effect is obvious.

关 键 词：巷道分级支护 岩体分级 支护方式 支护参数 支护流程 软硬层叠岩体 

分 类 号：TD353[矿业工程—矿井建设]