Then, before trenching, the construction workers often put out the lime line, and the driver can clearly know the length and width of trenching and the scope of the whole working condition. The lime line scattered here is equivalent to a reference object, and the excavation can be carried out according to the route of the lime line when excavating the straight hook. When digging, the front-end working device uses the same stroke as much as possible, that is to say, when digging each groove, the digging action of the boom and the bucket is as consistent as possible, which can greatly improve the working efficiency and construction effect to a certain extent. It's best to stop the excavator and get off at every digging distance to check whether the groove deviates from the required direction, which is convenient for timely adjustment and saves rework. However, in the actual construction process, the lime line is likely to be covered by soil, so it will not play a role. Speaking of which, the question is, how can we dig the ditch straight without lime line?
2. How to dig the ditch straight without lime line?
As the saying goes: there is no problem that cannot be solved, but we haven't found a solution yet! As mentioned earlier, the lime line is a reference. Since the lime line can't be seen clearly, we can find other objects as reference, which can be kerbs on the roadside or the foundation of buildings. But when there is no suitable reference around, experienced drivers will use the crawler plate of the excavator as a reference. I also agree with this practice, and the effect is very good. Adjust the excavator to a roughly straight position, take the edge of the track plate as a benchmark, get off after digging for a period of time, and visually check whether the groove is straight. If it is not straight, adjust the excavator to a suitable position again. At this time, try not to deviate from the walking direction of the excavator, keep certain movements and try to reach the designated position in one step.
3. How can a ditch without lime line "bend"?
I believe many friends are puzzled. If I don't dig the ditch straight, it will bend. But the "bend" I'm talking about here is not crooked, but a turn with a certain curvature. It is necessary to "carve" with bucket teeth or side teeth in coordination with corresponding actions.
I am also "an armchair strategist" here, but friends can still try more when they have the chance.
How to level the ditch bottom?
1. Use measuring tools
Under the command of constructors, the depth and slope of the tunnel can be accurately controlled by measuring tools, which is more due to the tacit cooperation between drivers and constructors.
Excavator operation-how to dig ditches well
Bring your own tools
Some time ago, an enthusiastic friend brought us his invention. His name is Han Hai, and he applied for a patent for it. Friends who often visit Real Armor should be familiar with this name, which is undoubtedly a great advantage of "technology control". In your spare time, you can read this article carefully and understand his thoughts.
This is also a method to control the depth of ditch when digging ditch. You can "go into battle" yourself. This tool looks a bit complicated, so it doesn't matter. I will take the tape measure directly, and the driver can measure it at any time when he looks at it next time. It may not be a tape measure, or it may just be a branch of the right length picked up by the roadside.
The bucket leveled the bottom of the ditch.
After the ditch is dug here, the bottom of the ditch can be leveled with buckets, which is also the requirement of most builders, especially for the ditch where pipelines need to be installed. After the trench bottom is leveled, the next step can be carried out.
Experienced drivers will also use this action to further trim the ditch bottom until the required slope is reached.
How to improve the efficiency of trenching operation?
It is not difficult to see that the methods mentioned above can improve the working efficiency of excavators to a certain extent, but in practical work, remember the truth that "haste makes waste". Here I will give you a few examples.
1. Stop the fuselage to reduce the "risk"
In my opinion, no matter what kind of operation, the excavator should try to "stop the body", one is to consider safety, and the other is to reduce the difficulty of the driver's operation.
Excavator operation-how to dig ditches well
2. Confirm the slope and depth before excavation.
Here, I recall my previous working experience in driving an excavator. Once digging a ditch, the construction workers left the scene after explaining it. According to the builder's instructions, he dug dozens of meters at a time. Later, the construction party said that the whole excavation was shallow and it was necessary to dig again. I believe most drivers don't like doing rework. Take the slope of 1 m 1 cm as an example, a ditch of several tens of meters will be several tens of centimeters shorter.
Excavator operation-how to dig ditches well
3. Clean the earthwork on both sides of the trench to avoid collapse.
Especially when there is water in the trench or the weather is about to rain, it is best to foresee such a landslide in advance.
Take the dug trench as your own "property" to protect it, dig up the virtual soil above the trench as far as possible, and make the trench as wide as possible into a "V" shape.
Another advantage is that if there is a landslide at present, the excavator can go forward and dig out the materials of the landslide.