1. Dig trenches to work according to requirements and adapt to local conditions
2. Dig trenches according to the direction of the marked line, deep trenches to prevent landslides, slopes
3. My experience is to pay attention to safety first, because there is no danger of a slope on both sides of the slope, followed by
4. When digging pipeline trenches, we must pay attention to repairing slopes. If the slopes are not repaired, we can put the steps down one by one, so that even the collapse is not so dangerous.
5. Video trenching will not be evaluated. It can only be said that it is adapted to local conditions and depends on the soil conditions. It is not necessary to collapse when constructing the pipeline after molding. I usually dig trenches according to what kind of soil, how deep, and where to dig to determine the shape of the trench. Sandy soil should be dug a V-shaped trench to prevent landslides. Urban roads should be protected by channel steel Excavation later (mostly trenches more than 3 meters deep)
6. The trench in the video is average. It can be seen from the video that it is almost two meters deep, there is no slope, and the buckets are wide up and down, so that the people who are under management are a bit dangerous. As for my experience, you can search my posts on the forum. {: Tiejia1:}
7, looking at this ditch is very common, generally so. But the ditch in the video is too straight, no slope, easy to collapse, and people are more dangerous below. The local soil may be hard, maybe it's fine. If we dig such a ditch locally, we must dig the slope on both sides, otherwise it will definitely collapse. Because we have a case of burial
8. Fortunately, everyone is doing this, straight, but without slope, it is easy to collapse, and people are more dangerous below. If you dig deep, it is recommended to leave the slope, otherwise it is easy to collapse.
9. Let me make it clear, I mean bad, but it ’s on the driving school book.
(1) Riding and digging: mainly in the open area of the site, the excavator is parked in the middle of the trench to be dug, and the bucket is dug in the middle of the two tracks.
(2) Shun side style: refers to the relatively narrow area of the site. Like a clear water channel, the bucket is only dug along one side of the crawler line (the technique of slopes is needed here).
(3) Facing type: mainly for the excavation of highway culverts, which means that the excavator and the ditch are parked at 90 degrees opposite to the ditch. Edge)
In short, during the trench digging process, the operator needs to pay special attention to straightening, slope smoothness, trench bottom control, and so on. Choosing an appropriate trenching method is actually not difficult.
