1. Excavation
The first is to dig out the ditches where the drainage ditch is located, reserve side piles and middle piles, and mark the excavation depth on the top of the middle piles to facilitate subsequent construction. When excavating, you must pay attention to the scale specifications on the design drawings. You cannot dig as much as you want. Strictly enforce the norms to succeed.
2. Clear the bottom for inspection
After the excavation of the foundation pit is completed, self-inspection and mutual inspection must be carried out. After the project department is qualified, it shall be reported to the supervision engineer for inspection. Only after passing this check can it be considered as a real pass, and then the next step of installation can be carried out.
3. Concrete pouring
First, nail the formwork with wooden stakes, place the slotted cover drainage ditch according to the line, and then pour the concrete. This process must be carried out in strict accordance with the construction skills requirements of the document. General professionals know that concrete should be poured again and again, which is an important step to ensure a successful installation.
4. Settlement joints
According to the length of the construction section, the drainage ditch is poured in sections, and the settlement joint and settlement joint width are set reasonably. Use asphalt planks to fill the cement mortar in the middle, and set the detailed depth according to the actual situation.
5. Maintenance
Since the drainage ditch cannot bear the load during installation, after the concrete starts to solidify, wet grass curtains should be used to cover the drainage ditch and spray water for maintenance in time for every part of the installation.
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