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本文总结了牛马司矿—300m标高处,松软砂质泥岩中主、副井马头门分别用钢筋混凝土刚性支护和“新奥法”施工支护的实践经验。
This paper summarizes the practical experience of rigid support of reinforced concrete and the construction support of “New Austrian Law” at the elevation of -300 m at Niu Masi Mine and at Ma Tau Mun of soft sandy mudstone respectively.