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基于3Dmine的采空区治理工程实践
- 时传龙
- 作者单位：
- 山东黄金集团有限公司
基金项目：
- 国家自然科学基金青年项目（52204128）
详细信息：
- 作者简介：
- 时传龙（1988—），男，工程师，硕士，从事地下矿山开采及矿山生产技术管理工作；E-mail：814146864@qq.com
- 通讯作者：
- isnull
- PDF下载
Engineering practice of goaf management based on 3Dmine
- English Author：
- Shandong Gold Group Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
通过对某金矿采空区资料收集及现场调查，利用3Dmine软件建立了该金矿采空区＋巷道三维数字模型，准确获得了各中段采空区的实际边界和采空区形态等相关信息。针对采空区情况，结合矿区生产实际，经综合分析研究，提出了采空区治理方案，即：对矿区已经贯通连成一体的采空区群/塌陷坑（四中段以上）采用地表废石充填，四中段未贯通的采空区采用中深孔强制崩落顶板，将上部自地表“灌入”的废石充填到采空区，同时采取密闭隔离的方式联合治理；对于其余地段的采空区，已经结束回采且无法进入的区域采取在中段石门密闭隔离的方式进行治理，尚在开采的其他采空区采取施工措施工程进行坑内毛石回填并密闭隔离方式治理。通过多项措施的综合运用，彻底消除了发生大面积地压活动并引起地面塌陷的隐患，为井下正常生产作业创造了良好的条件。
关键词:
金属矿山；空场采矿法；采空区治理；3Dmine软件；地压控制;废石充填；崩落法
Abstract:
Through data collection and field investigations of a gold mine-s goaf,a 3D digital model of the mines goaf and roadways was established using 3Dmine software.This model accurately provided information on the actual boundaries and shapes of the goaf at different levels.Based on the comprehensive analysis of goaf conditions and the mine-s production reality,a management plan was proposed.The management strategy includes the following:for goaf groups/collapse pits (above the fourth level) that have interconnected,surface waste rock filling is used; for isolated goafs on the fourth level,forced roof caving through medium-long hole blasting is employed to fill the goaf with waste rock from the surface.In addition,closed-off isolation methods are applied for joint management.For other goafs where mining has ceased and access is no longer possible,the goafs are managed by sealing off the level stone doors.For goafs under mining,filling with in-pit coarse rocks and sealed isolation methods are implemented.Through the integrated application of these various measures,the risk of large-scale ground pressure activities and surface subsidence has been thoroughly eliminated,creating favorable conditions for continued underground production operations.
Keywords:
metal mine;open stoping method;goaf management;3Dmine software;ground pressure control;waste rock filling;caving
