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,由于赋存条件的复杂性和影响因素的多变性,使得该
巷道的开挖与支护极为困难。
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,由于赋存条件的复杂性和影响因素的多变性,使得该巷道的开挖与支护极为困难。
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