罗志波,曹朋军,林 星.莱州市郑海-顾家铁矿采空区稳定性评价[J].有色金属(矿山部分),2019,71(1):.
莱州市郑海-顾家铁矿采空区稳定性评价
Stability evaluation of mined-out area in Zhenghai-Gujia iron ore, Laizhou City
投稿时间:2018-02-27  修订日期:2018-03-06
DOI:
中文关键词:  稳定性评价  当量暴露面积  简支梁理论  采空区
英文关键词:stability evaluation  equivalent exposed area  simple beam theory  mine-out area
基金项目:
        
作者单位
罗志波 天津市地球物理勘探中心
曹朋军 天津市地球物理勘探中心
林 星 天津市地球物理勘探中心
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中文摘要:
      莱州市郑海-顾家铁矿采空区由浅孔房柱法开采所形成。前人勘查工作已基本查明采空区分布情况。基于其圈定的采空区范围、分布特征及其场区地质环境,通过简支梁理论及当量暴露面积法对郑海-顾家铁矿采空区稳定性做进一步地分析。研究结果表明顾家-海郑铁矿采空区处于不稳定状态。加之无序开采、顶板冒落、工程地质条件较差、地下水扰动等因素,采空塌陷及地裂缝潜在危险性较高,建议对其进行注浆充填治理及变形监测任务,以消除安全隐患,保障区内及周边人民的生命和财产安全。
英文摘要:
      The mine-out area in Zhenghai-Gujia iron ore, mined by shallow-hole room-pillar mining method, is delineated by previous exploration. Based on the distribution range, characteristics, and geological environment of Zhenghai-Gujia mine-out area, this paper discusses the stability by simple beam theory and equivalent exposed area method further. The results show the Zhenghai-Gujia mine-out area is still under an unstable state. With the additional influences of disorderly mining, roof caving, unfavorable engineering geological condition, ground water’s perturbation and etc., it can easily cause the geological hazards of mining collapse and ground fissure. Therefore, it is suggested that the Zhenghai-Gujia mine-out area be treated by grouting filling and deformation monitoring, in order to eliminate the hidden safety danger, and ensure the safety of people's lives and properties further in the study and its surrounding area.
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