隧道监控量测时,测点应安设在距开挖面( )m的范围内。
2023-05-11
A.1
B.2
C.3
D.4
参考答案:B
B.2
C.3
D.4
参考答案:B
2020版教材P232/2019版教材P226
5.测点应距开挖面2m的范围内尽快安设,并应保证爆破后24h内或下一次爆破前测读初次读数。
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