普朗铜矿自然崩落法底部结构所处区域岩体分区研究

Study on rock mass zoning of bottom structure of block caving method in Pulang Copper Mine

岩体质量是井下工程施工的基础,普朗铜矿底部结构的稳定程度关系到矿山日后的正常生产。针对普朗铜矿不同岩体质量区域底部结构稳定性控制及支护的需求,本文以施工揭露后的断层分布状态、施工过程中巷道支护工艺参数、前期工程地质报告等单因素为基础进行岩体分区,在此基础上综合考虑多种因素将底部结构所处区域岩体划分为3个区域,为后续的底部结构支护提供了基础。

Rock mass quality is the foundation of Engineering construction. The stability of the bottom structure of Pulang Copper Mine is related to the normal production of the mine in the future. According to the requirement of stability control and support of bottom structure in different rock mass quality areas of Pulang Copper Mine, this paper divides the rock mass into three regions based on single factors such as fault distribution after construction, roadway support parameters in construction process and pre-engineering geological report. On this basis, the area where the bottom structure is located is divided into three regions by considering various factors comprehensively. The support of part structure provides the foundation.