单选题:按静止土压设定控制土压,以下说法正确的是(  ) 。

题目内容:
按静止土压设定控制土压,以下说法正确的是(  ) 。 A.是开挖面不坍塌的最理想土压值,但控制土压相当大
B.是开挖面不变形的最理想土压值,但控制土压最小
C.是开挖面不坍塌的最理想土压值,但控制土压最小
D.是开挖面不变形的最理想土压值,但控制土压相当大

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