It is concluded that the shotcreting-bolting support is a effective measure guarding against initial caving.
认为采用喷锚支护是防止其初始冒落的有效措施。
We also introduced statistical way to analyze the strata in the initial roof caving and carried out reasonable classification.
采用统计学的方法进行了矿压分析和总结,根据初次放顶顶板情况进行了合理分类。
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