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Ground response to high horizontal stresses during longwall retreat and its implications for longwal
[期刊论文] 作者：Peter Zhang,Dave Gearhart,Mark,
来源：矿业科学技术学报:英文版 年份：2019
Roof falls in longwall headgate can occur when weak roof and high horizontal stress are present. To prevent roof falls in the headgate under high horizontal str...
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