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刘长友, 杨培举, 侯朝炯, 万志军
中国矿业大学学报,2004,33(2):166~169,-0001,():
-1年11月30日
采空区充填开采为“三下”煤炭的合理开采创造了条件。本文结合现场地质条件,分析了采空区全部充填条件下,充填体压缩率对上覆岩层活动的影响规律,分析了该条件下关键层的稳定性及其对上覆岩层活动的影响,提出了保持岩层移动在合理范围的充填体允许压缩率。研究结果可为采空区充填开采的有效实施提供参考。
充填开采, 上覆岩层, 关键层, 活动规律, 稳定性
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刘长友, LIU Chang-you, HE Zhuo-jun, Wan Zhi-jun
JOURNAL OF COAL SCIENCE & ENGINEERING (CHINA), Vol.9 No.1 June 2003 pp 12~16,-0001,():
-1年11月30日
By combining the practice s of deep mine mining in Changguang Mine field and using the Universal Distinct Element Code 3.0 3.0) numerical computing method, the distribution characteristics of deformation field and stres sfield as well as the surrounding rock deformation regularity of soft rock roadway are analyzed under extremely complicated geological conditions, a technical principle of bolting to control the surrounding rock of roadway is put forward. And also using a dynamic control for surrounding rocks de signing method, the supporting parameters and implement plan are rationally determined. The experimental tests have obtained a good controlling re sult of surrounding rock.
deep mine,, extremely complicated geological condition,, surrounding rock deformation,, dynamic controlling design
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