Due to the complexity of occurrence condition and the polytropy of influencing factors,the excavation and supporting in soft failure roadway under high ground stress become very difficult.
高地应力破碎软岩巷道,由于
件的复杂
和影响因素的多变,使得该
巷道的开挖与支护极为困难。
,多变现象Due to the complexity of occurrence condition and the polytropy of influencing factors,the excavation and supporting in soft failure roadway under high ground stress become very difficult.
高地应力破碎软岩巷道,由于件的复杂和影响因素的多变,使得该巷道的开挖与支护极为困难。
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