Conventional way of fence construction

According to the floor plan of the place, the positioning of the fence is mainly controlled. The west control baseline is derived from data from the north-south axis and site control. Two points are taken to determine a straight line for the control line of the west side protection net, and the extension control line is 2-3 meters as the control pile. The focus of the west control line is determined by a steel tape measure. In the same way, the remaining point lines are measured using the theodolite.

    According to the measured straight line of the net, according to the actual situation of the atlas and the drawings, the nets are divided into sections, and the length of the section is 3150mm, and the orientation of each midpoint is determined. Because the depth of excavation is not large, only the working surface can be left. The standard is set to 800 × 800mm, and the excavation process is carried out while trimming and trimming.

 

    Because the project template is small and the basic template is small, no messy accounting is needed. This template adopts the steel formwork support system, and should be compacted and leveled before assembling. After the formwork is assembled, the standard should be checked and the isolating agent should be evenly applied. When the equipment is placed, the axis, the template edge, the horizontal control level, and the bottom of the template are flat and solid. If the requirements are not met, the cement mortar leveling layer should be used. The ground anchor used for column reinforcement is pre-buried and can be used. Equipment column template, vertical column mold → equipment column hoop → correction column vertical, vertical and azimuth → comprehensive inspection correction → group fixed → pre-test.

 

    The project plans to use the product concrete. The concrete pouring should be carried out in layers. The intermittent time does not exceed the initial setting time of the concrete. Generally, it does not exceed two hours. The layering is performed. The thickness of each layer is the useful vibration length of the vibrating rod. The piercing vibrator is selected, and the spacing of the piercing is not more than 1.25 times the length of the vibrating part.