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[单选题]
按《岩土锚杆(索)技术规程》规定,岩土锚杆设计时,锚杆锚固段上的覆土层厚度不宜小于()。
A.2.5m
B.3.5m
C.4.5m
D.5.5m
查看答案
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A.2.5m
B.3.5m
C.4.5m
D.5.5m
A.0.03
B.0.05
C.0.08
D.0.12
A.0.85
B.0.9
C.1
D.1.05
A.8000m2/kg
B.10000m2/kg
C.12000m2/kg
D.15000m2/kg
A.100mm×100m×100m
B.150mmΦ150mm
C.200mm×200mm×200mm
D.150m×150mm×150mm
E.100mmΦ100mm
A.10mm~50mm
B.10~40mm
C.10mm~30mm
D.5~45mm
A.-50mm~50mm
B.0~100mm
C.-100mm~100mm
D.100mm~150mm