[单选题]隧道排水沟坡度应与线路坡度一致,排水沟底应有不小于()的坡度。A . 1‰B . 2‰C . 3‰D . 4&permil
[单选题]排水沟断面尺寸一般为()。A.10cm×10cmB.30cm×30cmC.50m×50cmD.100cm×100cm
[单选题]排水沟断面尺寸一般为()。A.10cm×10cmB.30cm×30cmC.50m×50cmD.100cm×100cm
[填空题] 房屋四周排水沟的沟底纵坡坡度为()。
[单选题]一般排水沟的横断面和纵向坡度不宜小于()。A . 0.4m×0.4m,0.1%B . 0.5m×0.5m,0.1%C . 0.4m×0.4m,0.2%D . 0.5m×0.5m,0.2%
[单选题]反坡排水时,视线路坡度分段开挖反坡排水沟,反坡排水沟坡度不宜()。A.大于0.5%B.大于1.5%C.小于0.5%D.小于1.5%
[单选题]反坡排水时,视线路坡度分段开挖反坡排水沟,反坡排水沟坡度不宜()。A.大于0.5%B.大于1.5%C.小于0.5%D.小于1.5%
[单选题]一般施工现场排水沟的横断面和纵向坡度不宜小于()。A.0.4m×0.4m,0.1%B.0.5m×0.5m,0.1%C.0.4m×0.4m,0.2%D.
[单选题]一般施工现场排水沟的横断面和纵向坡度不宜小于()。A.0.4m×0.4m,0.1%B.0.5m×0.5m,0.1%C.0.4m×0.4m,0.2%D.
[问答题] 排水沟过水断面一般取值范围: