| 金属矿充填法开采对地表构筑物稳定性影响模拟 |
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| 引用本文： | 司呈斌,张超,景泮印,栾伟杰,夏文浩. 金属矿充填法开采对地表构筑物稳定性影响模拟[J]. 科学技术与工程, 2023, 23(17): 7264-7270 |
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| 作者姓名： | 司呈斌 张超 景泮印 栾伟杰 夏文浩 |
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| 作者单位： | 北京科技大学土木与资源工程学院;山东黄金矿业( 莱州) 有限公司焦家金矿 |
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| 基金项目： | 中央高校基本科研业务费项目(FRF – BD – 20 - 03A) |
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| 摘 要： | 为确保某金属矿山采用充填法开采过程中地表移动带内调水工程的安全性，应用有限差分法进行矿区三维数值模拟计算，并采用安全性分析指标进行量化评价。研究表明：矿区开采结束后，采场周围部分区域出现了以拉伸破坏为主的塑性区，采场及时充填治理有效地避免破坏增大现象；地表变形主要为采场正上方自四周逐渐减小的均匀沉降变形，调水工程能够保持较好的稳定性；现场实测结果验证了模拟结果的准确性。
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| 关 键 词： | “三下”开采 构筑物 充填法 数值模拟 稳定性 |
| 收稿时间： | 2022-09-22 |
| 修稿时间： | 2023-04-10 |
Simulation of influence of filling mining on stability of surface structures in metal ore |
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| Si Chengbin,Zhang Chao,Jing Panyin,Luan Weijie,Xia Wenhao. Simulation of influence of filling mining on stability of surface structures in metal ore[J]. Science Technology and Engineering, 2023, 23(17): 7264-7270 |
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| Authors: | Si Chengbin Zhang Chao Jing Panyin Luan Weijie Xia Wenhao |
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| Affiliation: | School of Civil and Resource Engineering,University of Science and Technology Beijing |
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| Abstract: | To ensure the safety of water diversion project in the surface moving zone during filling mining, finite difference method is used to carry out three-dimensional numerical simulation calculation, and the safety analysis index is used to carry out quantitative evaluation. The research shows that only shear failure plastic zone appears in some areas around the stope after mining, and timely filling treatment effectively avoids the phenomenon of failure increase. The surface deformation is mainly the uniform settlement deformation that decreases gradually from the surrounding area above the stope, and the water diversion project can maintain good stability. The accuracy of the simulation results is verified by the field measurement results. |
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