水泥管安装方法（Installation method of cement pipe）.docVIP

水泥管安装方法（Installation method of cement pipe） Construction method of cement pipe installation The determination of pipeline trench earthwork line: control points according to the design of a given line can be set out before the construction of the midline of the starting point, end point, plane, longitudinal fold point break point and line control center at the scene (wooden pile top nail nail set, and the position of center) in the trench, the appropriate starting point end point point outside the plane set the direction, control pile, and pile number is determined by measuring. The establishment of the temporary level: pipeline projects often need additional temporary leveling points should be stable and not easy to be collision settings, the spacing is not greater than 30 meters. Temporary level closure shall be in line with the required standards. The main excavation trench excavation by excavators, supplemented by artificial bottom cleaning, water bucket connecting pipe and branch by artificial excavation. Excavation process, pay attention to observe changes in soil, there are signs of landslides supporting the use of the road enclosure. Jiaxiang County, with the spirit of the cement factory excavation dug to the groove bottom elevation of 10cm or so, the slot subsoil not digging by manual removal, finishing bottom of the tank. Artificial cleaning trough, carefully check the bottom soil disturbance, if there is disturbance, should do special treatment. In the groove on both sides of the bottom of the tank above 1 meters elevation, symmetrically arranged on the pile, high elevation nail nail. In the trench before bottoming out and pouring flat before, should retest the center line and elevation elevation drainage pipe pile. 6 slot single pile height of not more than 2 meters away from the trench edge distance of not less than 1 meters. The protection of underground pipeline trench construction to the relevant departments of pipeline construction, to definite the l