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本文论述了金属矿山松软破碎岩层的特点和巷道地压显现特征,提出了有关该类岩层巷道支护问题的一般原则和技术途径,并给出了三个实例。
This paper discusses the characteristics of mine soft broken rock strata and the revealing characteristics of tunnel pressure, puts forward the general principles and technical approaches for the roadway support in this kind of rock strata, and gives three examples.