管涵管道安装技术交底.doc

交底内容：
本工程管涵位于K0+288里程处，为钢筋混凝土管。
一、管材：
1.  本工程采用的钢筋混凝土管必须保证可以承受6.0m覆土压力，为平口管。
2.  钢筋混凝土管必须在内部热涂沥青一道后再安装连接。
二、管涵基础：
1.  本工程管涵基础采用钢筋混凝土管1800混凝土基础，具体图纸见国家建筑标准设计给水排水标准图集（95S516，第6页）。
2.  开挖的沟槽人工整平后，标高复测无误即铺设砂碎石垫层，整平夯实后再次复测标高，无误再支模浇注管涵基础。
混凝土强度等级为≥C10，第一次浇注（管座平基）的高度为300mm，应振捣密
Cards on the table contents:
The project culvert at K0 +288 Mileage for reinforced concrete pipe.
1, pipe:
1. This project used in reinforced concrete pipe must be guaranteed to withstand 6.0m overburden pressure, as the flat mouth tube.
2. Reinforced concrete pipe must be an internal thermal coating asphalt and then install the connection.
Second, culvert foundation:
1. This project based on reinforced concrete culvert pipe 1800 concrete foundation, concrete, see the National Building Standard Design Drawings Water Standard Atlas (95S516, p. 6).
2. Excavation trench were neat square, the level retest is correct that the laying sand gravel pads, leveling retest again after compaction level, and correct re-cast culvert foundation formwork.
Concrete strength grade ≥ C10, the first casting (pipe seat leveling) the height of 300mm, should be vibrated close