问题
单项选择题
在地下水位高于基岩面的隐伏岩溶发育地区，在抽降地下水的过程中发生了地面突陷事故，事故最可能的原因是( )。（）
A．(A) 基岩内部的溶洞坍塌
B．(B) 基岩上覆土层因抽降地下水，导致地层不均匀压缩
C．(C) 基岩上覆土层中的土洞坍塌
D．(D) 建筑物基底压力过大，地基土剪切破坏
答案
参考答案：C
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在地下水位高于基岩面的隐伏岩溶发育地区，在抽降地下水的过程中发生了地面突陷事故，事故最可能的原因是( )。（）
A．(A) 基岩内部的溶洞坍塌
B．(B) 基岩上覆土层因抽降地下水，导致地层不均匀压缩
C．(C) 基岩上覆土层中的土洞坍塌
D．(D) 建筑物基底压力过大，地基土剪切破坏
参考答案：C
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