问题
单项选择题
某工程岩体R=30MPa，
=0.60该岩体承载力基本值可确定为（）。
A.0.5MPa
B.1.5MPa
C.2.5MPa
D.5.5MPa
答案
参考答案：B
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某工程岩体R=30MPa，=0.60该岩体承载力基本值可确定为（）。
A.0.5MPa
B.1.5MPa
C.2.5MPa
D.5.5MPa
参考答案：B
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