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Before starting construction, it is necessary to understand the detailed construction conditions, understand how to dig, what requirements the construction party has, and what should be paid attention to. Details below:
1. How to dig a ditch straight:
1.Find references.
Then before digging the trench, often the construction personnel have already put the lime line, the driver and can clearly know the length and width of the trench and the range of the whole working condition, the lime line sprinkled here is equivalent to a reference, when digging the straight hook according to the route of the lime line can be excavated, the front end of the working device should use the same stroke as much as possible during the excavation, that is to say, the excavation action of the large and small arms and the bucket is as consistent as possible when each section of the trench is excavated, To a certain extent, it can greatly improve the operation efficiency and construction effect. It is best to stop the excavator every time it excavates a distance to check whether the trench deviates from the required direction, so as to facilitate timely adjustment and save rework. However, in the actual construction process, the lime line is likely to be covered with soil and thus cannot play a role, speaking of which, then the question is, how to dig the trench straight without the lime line?
2.How do you dig a trench straight without lime lines?
As the saying goes: there is no problem that cannot be solved, but a solution to the problem has not yet been found! As mentioned earlier, the lime line is a reference, since the lime line is not clear, then we can find other objects as references, which can be curbs on the side of the road.
It can also be the foundation of a building, but when there is no suitable reference nearby, experienced drivers will use the track shoes of the excavator as a reference, and I also agree with this practice and have tried it again and again. Adjust the excavator to the approximate straight position, take the edge of the track shoe as a reference, get off the car after digging a section and visually check whether the trench is straight, if it is not straight, adjust the excavator to the appropriate position again, at this time, the excavator walking direction should not deviate as much as possible, maintain a certain action, and try to get it in one step.
2. How to flatten the bottom of the ditch?
1.Take advantage of measurement tools.
2.Bring your own tools.
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This is also a way to control the depth of the trench when digging, "single-handedly" can "go into battle", this tool looks a little complicated, it doesn't matter, I'll have a non-complicated one, just bring a tape measure.
On the body, the driver can measure it at any time and next time. It could also be not a tape measure, or it could just be a branch of the right length picked up on the side of the road.
3. The bucket drags the bottom of the ditch.
After digging the trench here, you can use the bucket to flatten the bottom of the trench, and most of the builders will also have the same requirements for digging the trench, especially for the trench that needs to install the pipeline, and the bottom of the trench can be leveled for the next step. Experienced drivers will also use this action to further trim the bottom of the ditch until the required slope is reached.
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Three points and one line, find a good point at the end of the head, ten meters and twenty meters into the stick, the line will come out, just dig along the stick, of course, you have to turn around and see the longer the better to dig, as long as you can't see the head is crooked, straight words can be seen at the end of the head ....We often dig a tree ditch on a few hundred meters and a kilometer, drip irrigation, the problem is much smoother when the head is up, otherwise it has to be corrected, if it is flat, it will look at how deep, find the point on the arm, and go down to that point every time it is leveled....
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If you are not sure, you need to get out of the car to check, when it feels very flat, go down and see how much worse it is from another angle, get on the car to correct, and you will adapt to this visual difference after a long time. If you want to dig flat, you have to pay attention to the first point of the tooth mark, according to the beginning of the tooth mark to dig over, really don't feel it, just come down and take a look, don't be too troublesome.
Driving an excavator also needs to have a sculptor-like mentality, for example, when digging a ditch for someone else's house, we need to dig neatly, just like a sculptor to think about their own works, and there is no gap in the excavator excavation technology.
Excavator Tips:
There are two basic requirements for trenching, one is "straight" and the other is "smooth". "Straight" means that the route of the ditch is dug out accurately according to the specified requirements. Generally, the route of the ditch is drawn in white lime on the ground.
If there are no lines, there are only a few dots. Then use the track to walk between a few points first, and the track traces left behind can play the role of a lime line, that is, be careful not to press off the points. If the center of the excavator is aligned with the lime line, and the middle tooth or ripper of the bucket is aligned with the lime line to excavate, the route of the trench will not be wrong.
"Shun" means that the bottom of the ditch should be smooth, and the slope should be controlled according to the requirements. Many drivers can't see the height of the bottom of the ditch, so they should get out of the car more to observe or ask the construction staff to measure through the instrument. When the ditch reaches a certain depth, the slope should be dug out on both sides of the ditch to prevent collapse, and the slope edge is generally pinned out with the side blades on both sides of the bucket.
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Standing in the car, I saw that the ground was downhill, that is, flat, and when digging, I had to dig along the front one
A common "posture" used by excavators during leveling operations
How to reasonably use the bucket is often decided according to the soil quality of the operation, when carrying out large and small area leveling operations, the bucket can also be flattened for "sweeping" or "flattening" and "bulldozing" action, when the material is insufficient, it is also necessary to use the material to fill, when the material is stacked excessively, it is loaded to other positions in time. Farmland renovation projects also often require leveling operations, which are often referred to as "turning over the soil".
The method of leveling.
1. The use of buckets.
When it comes to the method, I have to talk about the use of the bucket first, because the excavator leveling operation is mainly leveled through the bucket contact with the material, and there is a special bucket for leveling operation in foreign countries, and there are also in China, but it is relatively rare. The principle is very simple, that is, the ordinary bucket is not equipped with bucket teeth, and is directly equipped with steel plates, but it is best to customize a widened bucket, which increases the leveling area and improves the leveling efficiency.
Leveling buckets.
Because there is no bucket tooth, such a bucket is mostly suitable for the excavation and leveling of soft soil and materials, and the owner of the condition can modify it himself and use this kind of special bucket. We all know that the bucket needs to be turned over during the leveling operation, the bucket teeth are downward, and the large and small arms are operated, in which the range of activity of the small arm is controlled within 45 ° is the best, and the depth required by the construction party is reached through the excavation depth of the bucket teeth.
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By feeling: If you don't feel it, dig it up for a while.
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1. The excavator must first ensure that it is flatIf the excavator is uneven and difficult to level the ground, when the excavator is leveling and retreating, see if the back of the excavator is flat; After finding a section, put the excavator bucket on the left and right, don't move the arm, if the excavator is flat, the left and right swings are also flat.
2. Find a reference:Find several references that they are in the same horizontal plane, such as finding two points, knowing the two points and one line, and finding the two references according to the reference objects to level; At the same time, it should be well marked.
3. Don't be greedy when leveling the excavator:The master leveling is generally rarely stretched far, and it is difficult to coordinate when the excavator bucket is stretched far away and then retracts the arm, and tries to swing back and forth in the vertical line of the small arm when leveling.
4. Get out of the car often to see:When leveling, you should often get off the car to see if you have leveled, summarize experience, adjust the error in time, and think about why there is no leveling.
5. The forearm goes to **:The difficulty of the excavator leveling lies in the small arm of the excavator to **, according to experience, about 1 meter away from the driving building is prone to height difference, this is to pay attention to.
6. Excavator leveling method, push-pull leveling:Stretch out the big arm and small arm, pull it back at one time, another way is to level it many times, after stretching out the middle arm, the middle arm receives half of it, and then go to collect the second shovel.
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Here are 6 tips for leveling with an excavator:
1.Make a mark as a reference point.
If you stand on the ground and can see that several points are on the same level, you make a mark and use them as reference points at the time of the round.
2.Remember not to be greedy when looking for peace.
When the excavator is leveled, you can not be greedy for far, you have to pay attention to it, the old driver leveling is generally rarely stretched far, because it is difficult to coordinate when extending the arm; Therefore, when learning to find the right time, try to swing back and forth in the vertical line of the forearm, and extend forward through the vertical line.
One or two buckets away, one bucket away from the vertical line.
3.Front, left, and right reference standards are used.
When leveling, we should learn to use the reference standard of the front, left and right, stretch straight forward, and have 50 centimeters to close the plane that has been found, and also use the plane that has been found in front as a reference model for the back, and use the coherence of the 50 centimeters to lift the big arm and collect the small arm to close the soil behind. The left and right sides are horizontal, but also to the first bucket as a sample, when looking for the second bucket, two bucket teeth are exposed to press the plane of the first bucket leveling, looking at the height of the two bucket teeth, slowly flattening, and then each bucket has two tooth marks in overlapping.
4.If you want to level the excavator, you must first level it.
The excavator itself must be flat, you are difficult to level if you are not flat, find a section of the bucket to the surface left and right to swing around, do not move the big arm, if the excavator is flat, the left and right swing is also flat.
5.When looking for time, it is necessary to see if there is any error.
To adjust the error in time, generally in the excavator to see either high or low, this is a phenomenon that everyone will have, so after you have found one or two paragraphs, first take a look, when you find that there is an error, see how much the error, and then adjust, some people have a good habit of self-adjustment of eye error, some are not, so you have to take a look more.
6.Rational use of surrounding reference materials as a standard.
Another point is more useful, that is, to learn to use the surrounding reference objects as standards, not to set their own reference standard points, to find the usual should not be too wide, but also to look at the terrain to determine the place from high to low, in fact, leveling is also to see more, think more, plan and then do.
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The leveling excavator generally starts from the side. Try to look from left to right, and it will be more accurate to see the doors and windows of the cab on the left. Dig from left to right and dig bucket after bucket, press 1 tooth at a time so flat, press a tooth in order to be able to see the running track of the bucket tooth below, it is not easy to dig deep, and it is easier to distinguish the high ground.
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The analysis of the split sail is as follows:
1. Generally, the construction site will draw the route of the ditch with white lime on the ground. Remember, you need to press the line to remove your chain, which will ensure that the digging is straight.
2. If there is no line, only a few points, then use the track to walk between a few points first, and the track traces left behind can play the role of a lime line, that is, be careful not to press off the points.
3. The center of the excavator is aligned with the lime line, and the middle bucket teeth or ripper of the bucket are aligned with the lime line to excavate, and the route of the Zen jujube ditch will not be wrong.
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The old driver summarized 5 methods of excavator leveling, how many did you learn?
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Excavator leveling tips:
First, the excavator should be stopped. If the left and right are uneven, for novices can not be leveled at all, as long as the ground needs to be flat, first of all, the excavator must be stopped.
Second, the leveling excavator should start from the side. Try to look from left to right, and the doors and windows of the cab on the left will be more accurate. You can also go right to left, don't start in the middle.
Third, the excavator digs from left to right to dig bucket after bucket, pressing one tooth at a time so that it is flattened, pressing a tooth is to be able to see the running track of the bucket teeth below is not easy to dig deep, and it is easier to distinguish the high ground.
Fourth, when the front is straightened to the back, the interface should be straightened over on the already flat surface, and don't dig there when you see that it is high.
Fifth, when leveling, the soil should be left as far as possible 10 centimeters, and before it is not 10 centimeters, the soil needs to be dug low.
Sixth, when the excavator comes back, don't always look at the bucket, but look at the surface that has just been leveled. Look at the front and back of the left and right 4 sides, and immediately lift the big arm when it is low, and try to raise it at about 1 cm each time; If you are tall, you can lower your big arm.
Seventh, remember to find references.
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Kiss, keep you waiting, I'm glad to answer for you, hello! The following methods can be used to determine whether the bottom of the excavator digging trench is flat: 1
Observe the surface of the bottom of the ditch: After the excavator digs the trench, the surface of the bottom of the ditch should be flat, without obvious ups and downs or unevenness. 2.
Use a level: You can place a spirit level at both ends of the bottom of the ditch to observe whether the level is displayed, if the levelness shown at both ends is the same, it means that the level of the bottom of the ditch is displayed. 3.
Use measuring instruments: Measuring instruments such as an elevation meter can be used to measure the elevation of the bottom of the ditch at the ridge, and if the elevation is the same, the bottom of the ditch is flat. It should be noted that before the excavator digging the ditch, the design elevation of the ditch should be measured, and the excavator should constantly check the flatness of the bottom of the ditch in the process of digging the ditch, and if it is found that there is an uneven situation, it should be repaired in time.
In addition, the following points need to be paid attention to when digging trenches with excavators:1Security Issues:
When digging trenches with an excavator, you should pay attention to safety and avoid tilting or landslides of the excavator. 2.Earthworks:
When the excavator digs a trench, the excavation depth and speed should be determined according to the soil condition and the performance of the excavator, so as to avoid overturning the excavator or earthwork collapse due to too deep or too fast. 3.Cleanup Job:
After the excavator digs a trench, the excavated earthwork should be cleaned up in time to avoid affecting the surrounding environment. Hope the above can be helpful to you.
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