煤层底板破坏流固耦合数值模拟

孙娈娈; 王中华; 孙燕青; 汪华君; 白帅; 郑功

doi:10.3969/j.issn.1001-1986.2013.03.013

煤层底板破坏流固耦合数值模拟

孙娈娈¹,
王中华^2,3,
孙燕青⁴,
汪华君¹,
白帅⁵,
郑功⁶

1. 毕节学院资源与安全工程学院, 贵州毕节 551700;
2. 瓦斯灾害监控与应急技术国家重点实验室, 重庆 400037;
3. 中煤科工集团重庆研究院, 重庆 400037;
4. 济宁矿业集团霄云煤矿, 山东济宁 272213;
5. 山东省邹城监狱, 山东济宁 273517;
6. 中煤科工集团南京设计研究院, 江苏南京 210031

基金项目:

毕节学院科学研究基金项目（20112029）

详细信息

作者简介:
孙娈娈(1985-),女,山东潍坊人,硕士,助教,从事矿山水害预测与防治及水文物探方法的研究.

中图分类号: TD745
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出版历程
- 收稿日期: 2012-05-02
- 网络出版日期: 2021-10-22

Fluid-solid coupling numerical simulation of coal seam floor failure

1. Bijie College, College of Resources and Safety Engineering, Bijie 551700, China;
2. National Key Laboratory of Gas Disaster Detecting Preventing and Emergency Controlling, Chongqing 400037, China;
3. Chongqing Research Institute, China Coal Technology & Engineering Group Corp, Chongqing 400037, China;
4. Xiaoyun Mine of Jining Mining Group, Jining 272213, China;
5. Shandong Province Zoucheng Prison, Jining 273517, China;
6. Nanjing Design and Research Institute, China Coal Technology & Engineering Group Corp, Nanjing 210031, China

摘要

摘要: 根据煤层底板含水层具有不均一性的特点，建立了底板含水层非均布水压力学模型和流固耦合模型，并根据"下三带"理论和弹塑性理论求得了底板保护带突水极限压力的弹性解和塑性解。利用FLAC3D软件对工作面采动底板进行了流固耦合数值模拟，并对煤层采动底板的应力破坏特征以及渗流特征进行了研究。综合采用理论计算和数值模拟的方法对煤层底板进行了突水预测。研究表明：非均布水压模型更符合工程实际，数值模拟方法可以快捷、准确的对煤层底板突水进行预测，对水害防治具有重要意义。
- 非均布水压力学模型 /
- 流固耦合 /
- 应力破坏特征 /
- 渗流特征 /
- 突水预测
Abstract: Aimed at the heterogeneous characteristics of aquifer in floor, the paper established a non uniform hydrostatic mechanical model and a fluid-solid coupling model for aquifer in floor. According to the "three zone" theory and elastic-plastic theory, it obtained the elastic and plastic solutions for limit pressure of water inrush in protection zone of floor. We used the software FLAC3D to carry out numeric simulation of fluid-solid coupling of the disturbed coal face, studied deeply the characteristics of stress destruction and infiltration in the floor disturbed by coal mining. Theoretical calculation and numerical simulation method were used to predict water inrush in coal seam floor. Research shows that the non uniform pressure model is more consistent with the engineering practice, numerical simulation method can be fast and accurate to forecast water inrush. It is of great significance for water hazard control.
- Non uniform hydrostatic mechanical model /
- fluid-solid coupling /
- stress failure characteristics /
- infiltration characteristics /
- water inrush prediction

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文章访问数: 97
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煤层底板破坏流固耦合数值模拟

作者简介: 孙娈娈(1985-),女,山东潍坊人,硕士,助教,从事矿山水害预测与防治及水文物探方法的研究.

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Fluid-solid coupling numerical simulation of coal seam floor failure

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作者简介:
孙娈娈(1985-),女,山东潍坊人,硕士,助教,从事矿山水害预测与防治及水文物探方法的研究.