文档介绍：A grout curtain (5B) can be installed prior to the RCC or can be installed afterward from a gallery. 灌浆帷幕(5 b) 可以在安装碾压混凝土前或从一个地道安装之后。 The gallery should be large enough to modate suitable production equipment,especially at interior corners and intersections. 地道应该足够大, 以适应合适的生产设备, 特别是在室内角落和十字路口。 Internal drains (5C) can be easily drilled with track - mounted rotary percussion equipment. 内部排水(5 c) 可以很容易地钻与跟踪安装旋转冲击设备。 Nominal 3- at spacing of 10 to 15 ft are adequate. 名义 3 -。孔的间距 10 到 15 英尺足够。 These holes can be drilled at high production rates with an accuracy on the order of +_3 ft in about 120 ft. 这些漏洞可以钻在生产速度与大约 120 ft+- 3 英尺的高精度之间。 A very efficient way to drill these holes is immediately after placing the RCC lift that is the gallery floor. 这些孔钻一个非常有效的方法是后立即将地道的碾压混凝土电梯楼 When a long gallery with holes beginning at the same elevation is called for,it is effective to stop RCC for a day while several track drills drive onto the lift and drill the holes. 当一个长地道孔在同一海拔时, 开始呼吁, 这是有效的一天来停止碾压混凝土, 同时几个跟踪演****开车到电梯,钻洞。 The area is then cleaned,treated asa cold joint, and the RCC placing dams, dams with wide bases,dams with high heat (due to high cement contents, use of high - heat cement , or hot placing conditions), and dams with high elastic modulus values may r e quire longitudinal joints (5D) that can be grouted from a gallery or from outside of the dam. 然后区域清洁,视为冷焊