城镇供热管网工程施工及规范 (CJJ 28-2004) 目 录前 言.............................................................................................................................................................11 总 则.........................................................................................................................................................22 工程测量.....................................................................................................................................................22.1 一般规定...........................................................................................................................................22.2 定线测量..........................................................................................................................................22．3 水准测量.......................................................................................................................................22．4 竣工测量.......................................................................................................................................32．5 测量允许偏差...............................................................................................................................33 土建工程及地下穿越工程.........................................................................................................................43．1 开挖工程.......................................................................................................................................43．2 土建结构工程........................................................................................................................43．3 回填工程................................................................................................................................93．4 地下穿越工程..................................................................................................................
