综放开采覆岩破坏模型及导水裂隙带高度研究*

doi:10.16265/j.cnki.issn1003-3033.2017.11.025

中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (11): 144-149.doi: 10.16265/j.cnki.issn1003-3033.2017.11.025

综放开采覆岩破坏模型及导水裂隙带高度研究^*

赵高博¹, 郭文兵^1,2 教授, 杨达明¹, 娄高中¹, 郑冬杰¹

1 河南理工大学能源科学与工程学院,河南焦作 454003
2 煤炭安全生产河南省协同创新中心,河南焦作 454003

收稿日期:2017-08-25 修回日期:2017-10-13 发布日期:2020-10-21
作者简介:赵高博 (1996—),男,河南南乐人,硕士研究生,研究方向为“三下”开采、岩层移动与控制。E-mail:644336484@qq.com。
基金资助:
国家自然科学基金资助(51774111);高等学校博士学科点专项科研资金项目(2013411611004)。

Study on overburden failure models and height of water flowing fractured zone in fully mechanized caving mining

ZHAO Gaobo¹, GUO Wenbing^1,2, YANG Daming¹, LOU Gaozhong¹, ZHENG Dongjie¹

1 School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454003, China
2 Collaborative Innovative Center of Coal Safety Production in Henan Province, Jiaozuo Henan 454003, China

Received:2017-08-25 Revised:2017-10-13 Published:2020-10-21

摘要/Abstract

摘要： 为保障水体下采煤安全,提出一种新的导水裂隙带高度预测方法。通过构建岩层悬空完整力学模型、岩层悬伸破断模型和破断岩块力学模型,分析煤层上方岩层初次垮落机制、岩层悬伸破断机制和岩块结构失稳机制,进而提出一种综放开采导水裂隙带高度理论预测方法;用此方法预测沙坪矿某综放工作面的导水裂隙带高度,并将该理论预测结果与回归分析法和数值模拟方法综合预测的结果进行比较。结果表明:理论预测结果与回归分析、数值模拟预测结果基本吻合。

关键词: 综放开采, 覆岩破坏模型, 岩层移动, 导水裂隙带高度, 理论分析

Abstract: The paper was aimed at working out a new method for predicting height of water flowing fractured zone in order to ensure the safety of coal mining under water body. Mechanical models were built for overhanging integrity strata, cantilevered rock failure and fracture blocks. Mechanisms were analyzed for roof breaking down at first, cantilevered rock fracture and blocks structure instability. Furthermore, the theoretic calculation method of the height of water flowing fractured zone was worked out for fully mechanized caving mining. The theoretic calculation method was used to predict the height of water flowing fractured zone for a fully mechanized caving face in the Shaping mine. A predicted height comparison was done between the method and other two methods. The result shows that the theoretical prediction height is consistent with the regression analysis and the numerical simulation height.

Key words: fully mechanized caving mining, overburden failure model, strata movement, height of water flowing fractured zone, theoretical analysis

中图分类号:

X936

赵高博, 郭文兵教授, 杨达明, 娄高中, 郑冬杰. 综放开采覆岩破坏模型及导水裂隙带高度研究^*[J]. 中国安全科学学报, 2017, 27(11): 144-149.

ZHAO Gaobo, GUO Wenbing, YANG Daming, LOU Gaozhong, ZHENG Dongjie. Study on overburden failure models and height of water flowing fractured zone in fully mechanized caving mining[J]. China Safety Science Journal, 2017, 27(11): 144-149.

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综放开采覆岩破坏模型及导水裂隙带高度研究^*

Study on overburden failure models and height of water flowing fractured zone in fully mechanized caving mining

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