CAJ | 학술논문

盘区矿柱回采厚度是影响资源回收率的重要因素之一。合理的盘区矿柱回采厚度不但能够提高资源的回收率和经济效益，而且能够降低矿柱回采过程中的安全风险。在提出不同的回采方案的基础上，对岩体力学参数进行合理的折减处理，并通过自下而上的三维实体建模技术建立分析模型，并在分析中以摩尔-库伦岩土模型为破坏准则。采用FLAC3D 分析软件对盘区矿柱不同的回采厚度进行数值模拟分析，研究盘区矿柱及其周围采空区围岩内应力和应变的变化规律。通过对盘区矿柱不同回采厚度模拟结果的分析比较，确定了盘区矿柱合理的回采厚度，能够保证盘区矿柱安全的回采。最后通过技术经济分析比较，综合考虑技术、经济和安全等多方面因素得出结论，选择其中的最优回采方案。
반구광주회채후도시영향자원회수솔적중요인소지일。합리적반구광주회채후도불단능구제고자원적회수솔화경제효익，이차능구강저광주회채과정중적안전풍험。재제출불동적회채방안적기출상，대암체역학삼수진행합리적절감처리，병통과자하이상적삼유실체건모기술건립분석모형，병재분석중이마이-고륜암토모형위파배준칙。채용FLAC3D 분석연건대반구광주불동적회채후도진행수치모의분석，연구반구광주급기주위채공구위암내응력화응변적변화규률。통과대반구광주불동회채후도모의결과적분석비교，학정료반구광주합리적회채후도，능구보증반구광주안전적회채。최후통과기술경제분석비교，종합고필기술、경제화안전등다방면인소득출결론，선택기중적최우회채방안。
The mining thickness of the panel pillar is one of the important factors influencing the recovery rate of re-sources. Reasonable mining thickness can not only improve the recovery rate of resources and economic benefits,but also re-duce the security risks in the recovery process. On the basis of different mining methods,reduction processing of rock mass me-chanics parameters is reasonably treated. Through a bottom-up 3d entity modeling technology,the analysis model is set up with Mohr-Coulomb model as the failure criteria. The FLAC3D analysis software is adopted to make numerical simulation analysis on the different mining thickness of panel pillar to investigate the variation law of stress and strain in panel pillars and at the inter-nal of surrounding rock of gob. Through comparison with simulation analysis results of the different thickness,the reasonable mining thickness of the panel pillar is determined, which can ensure the safety of panel pillar recovery. Finally through the technical and economic analysis,and the comprehensive consideration of various factors such as technology,economy and secu-rity,the optimal mining scheme is determined.