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.
英
美
释义
摘要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,使得该类巷道的开挖与支护极为困难。
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