Excavator Construction Safety Knowledge

1. when the excavator goes downhill, you should hold the door handle

Excavators have strong off-road capabilities. Using the cooperation of the excavator's track and the working device, the excavator can easily climb a very steep hill or go downhill easily. There is a dangerous situation that is easy to be overlooked, that is, when the excavator is going downhill or off the flatbed, because the fuselage will tilt forward, and many drivers will habitually use their hands to prop on the front windshield or door frame. If the door is open or not locked, the door will close quickly due to gravity, usually with great force, and the hand can easily get caught in the door frame, which can have very serious consequences

Therefore, when driving the excavator to work, the door of the excavator cab has a lock, and there is a 0 door lock when opening and closing, and this lock must be locked. The excavator driver tries not to hold the door frame with his hands.

2. raise the big arm high when the excavator is walking

There are many novices or apprentices who feel that the excavator's boom is raised, the stick is fully open, and the bucket is facing the sky, so it is better to see when walking, and sometimes it is cool to walk while turning. In fact, it is super dangerous to walk like this. Due to the high working device, the high center of gravity, and the slight unevenness of the ground, the excavator will overturn together with the person.

Therefore, you must not be cool when walking, and the most important thing is to look at the road under your feet.

3. Drive on soft ground

When the excavator is working on soft ground such as swamps and beaches, you should first use the bucket of the excavator to try whether it can bear the weight of the excavator. If you forget about this process, unless you drive an amphibious excavator, there can be serious consequences. Although the excavator is a crawler design that is in contact with the ground, it is not uncommon for the excavator to not move in the mud! In swamps, beaches and other soft ground to avoid excavator traps, the following points should be noted:

Test with a bucket first.

Don't stay in the same place for long periods of time.

Go straight and make fewer turns.

Don't worry if the excavator gets stuck in the mud. Don't try to climb out of the hill the same way you go, you will only get deeper and deeper. There are many ways to rescue:

If it's not deep enough, first hollow out the middle of the two tracks and try again.

If you can't get out, try how deep the silt is, and if not, dig your own way in front of the silt and slowly approach the hard ground on the shore.

If the mud is very deep, find a few iron plates or roadbed slabs and cross them to the track below to easily escape.

4. the blind spot of the driver's vision

The excavator cab is on the left, and the middle arm blocks a lot of the view on the right, so there is a big blind spot on the right side, especially the line of sight on the right rear is even less obvious. Many excavator accidents are due to the rotation of the right side of the person to hit or die! So when working in a not very spacious field, the excavator should try to lean to the left to let the right side have more space.

The rearview mirror on the excavator is a very fragile thing, often knocked down at work or in transportation, many drivers will feel that they can't touch it, anyway, it is not important, and they do not replace the new rearview mirror in time. In fact, the rearview mirror of the excavator is very important, especially on the right side, and the accident is often caused by a lack of safety awareness!

5. Ride on the ditch to work

The excavator digs a trench, if the construction worker tells you that there is a place where the height is not right, let you ride on the ditch to dig again, you must not listen to him, no matter what the geological conditions, you can only drive back half a track distance at most, no matter how much it is not safe, there is a danger of collapse. Maybe the builder will tell you that it's okay to come back a little more. And don't listen to him, because he cares more about the ditch than your safety. A qualified driver should have their own independent thinking ability and safety awareness, which is the most basic.

Therefore, when digging a ditch, you must be in place, do not turn back and dig again, if you are not sure, let the builder measure a few more points, if he does not predict then you dig slowly, get off the car and go to the ditch to see the slope. If you have to dig a long part of the ditch, you have to backfill the ditch first, which is troublesome but safe!

6. Pipeline lines

Every city has a complex pipe network underground, excavators in the urban excavation work, need to pay special attention to the underground pipelines, excavation or dredging pipelines is very dangerous, and most of the underground pipe network has no drawings to see, do not know the location and depth of the pipeline, which requires the driver to pay special attention when working. Since most of the pipes are buried by excavators, we can also make some estimates and judgments about the location of the pipes based on experience. Under normal circumstances, pipelines are parallel to the road, roadbed or green belt, and there are manhole covers, and the name of the pipeline is written, and multiple manhole covers are connected into a line is the route of the pipeline. There are many types of pipes that are usually buried under the road, and the bottom of the pipe is rainwater and sewage. Then there are the water pipes and gas pipes, the previous tap water was a very thick cast iron pipe, and the gas pipe had a protective layer on the outside, but now it is more PE pipes used. Then there are the power and communications, which are generally protected by PVC pipes, which contain wires and cables. Water, electricity, and gas are all dangerous. If the Wehrmacht fiber optic cable is cut, the consequences will be very serious. Special attention must be paid to excavation operations.

When filling a pipeline, it is generally filled with sand first, and the sand is used to protect the pipe and fill both sides. So when the excavator suddenly digs pure sand in the city, or suddenly the color of the loose soil is different, it is possible that there is a pipeline next to it. Fragile materials like corrugated pipes or PVC pipes must be cleaned by hand.