围岩是软弱破碎带时的地下工程，宜采用的开挖方法是（）。 A、带盾构的TBM掘进法 B、独臂钻法 C、天井钻法 D、全断面掘进机法

参考答案：A

围岩是软弱破碎带时的地下工程，宜采用的开挖方法是带盾构的TBM掘进法。参见教材P278。

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