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
,由于赋存条件
复杂
和影响因素多变,
该
巷
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,由于赋存条件复杂和影响因素多变,该巷挖与支护极为困难。
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