| 白云,张世杰,刘波,申中华,王光凯,雷耀东,王清标.不同开挖方式下采空区变形规律研究[J].矿产勘查,2019,(7):1707-1712 |
| 不同开挖方式下采空区变形规律研究 |
| Study on deformation regularity of goaf in different excavation method |
| 投稿时间：2018-09-05 |
| DOI： |
| 中文关键词: 采空区 变形 地表沉降 开采方式 |
| 英文关键词: goaf,deformation, surface subsidence, different mining methods |
| 基金项目:国家自然科学基金(编号:51778351)资助。 |
|
| 摘要点击次数: 1739 |
| 全文下载次数: 155 |
| 中文摘要: |
| 煤矿采空区上覆岩层变形控制已经成为安全开采的关键环节,是确保工作人员及周边居民生命财产安全的重要因素。为得到合理的煤层开采方式、降低采空区引起的地表沉降,以山东莱芜市北埠煤矿为研究对象,利用FLAC3d模拟软件对不同开挖方式下采空区上覆围岩的变形特征及地表沉降规律展开深入分析,研究结果表明:(1)开挖同一煤层条件下,双向开采引起的变形量大于单项开采；(2)相同采序条件下,单向开采引起的竖向变形与影响范围较小；(3)煤层开采顺序一定时,不同开采方式导致的地表最大沉降值相差不大。 |
| 英文摘要: |
| Deformation control of overlying strata in goaf of coal mine has become a key link in safe mining and an important factor to ensure the safety of life and property of workers and residents nearby. In order to get a reasonable mining method of coal seam and reduce the surface subsidence caused by goaf, taking Beibu Coal Mine of Laiwu City as the research object, the deformation characteristics and surface subsidence law of surrounding rock in goaf under different excavation methods were analyzed by FLAC3d simulation software. The results show that:(1)Under the same seam condition, the amount of deformation caused by two way mining is greater than that of single mining;(2)The vertical deformation caused by one-way mining is smaller, and the influence range of two-way mining is bigger;(3)When the coal mining sequence is fixed, the maximum subsidence value caused by different mining methods has little difference. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|