急倾斜破碎铅锌矿体采矿方法及结构参数研究  

Research on Mining Method and Structural Parameters for Steeply Inclined Fragmented Lead-Zinc Ore Bodies

作　　者：魏民 常亚明 WEI Min;CHANG Yaming(Xihe County Jianyagou Mining Development Co.Ltd.,Longnan 742500,China)

机构地区：[1]西和县尖崖沟矿业发展有限公司,甘肃陇南742500

出　　处：《甘肃冶金》2025年第1期1-6,共6页Gansu Metallurgy

基　　金：甘肃省西和县强科技基金项目:复杂地质条件下破碎矿体采矿方法研究(xkjh-2023-01)。

摘　　要：采用Hoek-Brown准则对铅锌矿矿体和围岩的岩石物理力学参数进行矿岩强度参数折减获得岩体力学参数,根据研究对象矿体的地质及开采技术条件情况,初步选定采矿方法,对选定的采矿方法进行技术经济比较,确定采矿方法为无底柱分段崩落采矿法,利用数值模拟分析开挖过程位移、应力、塑性区变化情况,验证所选用采矿方法的符合性。The rock physical and mechanical parameters of the ore and surrounding rock of the lead-zinc mine were reduced using the Hoek-Brown criterion obtain the rock mechanics parameters.Based on the geological and mining technical conditions of the ore,the mining method was preliminarily selected,and the technical and comparison of the selected mining method was carried out,determining the mining method to be the open stope mining method without pillars.Numerical simulation was used to analyze displacement,stress,and plastic zone changes during the excavation process,and the applicability of the selected mining method was verified.

关 键 词：铅锌矿 分段崩落 应力 塑性区 

分 类 号：TD853[矿业工程—金属矿开采]