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Analysis on distribution law of the abutment pressure of the integrated coal beside the road-in packing for gob-side entry retaining in fully-mechanized caving face
- Zhu Chuanqu1、 Liu Ze2、 Wang Weijun1、 Zhang Daobing1
作者信息
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Analysis on distribution law of the abutment pressure of the integrated coal beside the roadin packing for gobside entry retaining in fullymechanized caving face
- Zhu Chuanqu1、 Liu Ze2、 Wang Weijun1、 Zhang Daobing1
Author information
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(1. School of Energy and Safety Engineering, Hunan University of Science and Technology, Xiangtan,Hunan 411201, China; 2. School of Building, Central South University, Changsha 410075, China )
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摘要
The three-dimensional damage constitutive relationship of coal is established and distribution law of the abutment pressure of the integrated coal beside the road-in packing for gob-side entry retaining in fully-mechanized caving face under the effect of given deformation of the main roof is analyzed by the damage mechanics theory. And the relationship between distribution of the abutment pressure and thickness of coal seam is explored. The presented result is of great theoretical significance and practical value to the study on stability control of the surrounding rock of road-in packing for gob-side entry retaining in fully-mechanized caving face.
Abstract
The threedimensional damage constitutive relationship of coal is established and distribution law of the abutment pressure of the integrated coal beside the roadin packing for gobside entry retaining in fullymechanized caving face under the effect of given deformation of the main roof is analyzed by the damage mechanics theory. And the relationship between distribution of the abutment pressure and thickness of coal seam is explored. The presented result is of great theoretical significance and practical value to the study on stability control of the surrounding rock of roadin packing for gobside entry retaining in fullymechanized caving face.
关键词
road-in packing for gob-side entry retaining in fully-mechanized caving face /
integrated coal beside the roadway /
abutment pressure /
damage mechanics
Keywords
roadin packing for gobside entry retaining in fullymechanized caving face /
integrated coal beside the roadway /
abutment pressure /
damage mechanics
Zhu Chuanqu1, Liu Ze2, Wang Weijun1, Zhang Daobing1.
Analysis on distribution law of the abutment pressure of the integrated coal beside the road-in packing for gob-side entry retaining in fully-mechanized caving face. 中国工程科学. 2009, 11(3): 23-27
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参考文献
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