The subway tunnel was dug so deep, why was there no earth to transport out?

The subway tunnel was dug so deep, why was there no earth to transport it? Because the underground tunnel is deep and the tunnel is long, if the soil is transported out of the ground, the process will be cumbersome and troublesome.

The hollowing out of a place does not mean that the gap can be completely preserved, it needs some solid support to ensure that the site does not collapse, and such engineering guarantees need to be reinforced. The most common way of this reinforcement is to fill the excavated soil back into these barriers, so that it can be combined to form a relatively solid surface, which can not only ensure the safe development of engineering facilities, but also save the cost of transporting soil. Compared with transporting from the outside, this mode of excavation and then directly filling it back is more time-saving and labor-saving, so you don't have to worry about the soil excavated to the end.

In fact, there is soil to transport out, but in order to reduce the traffic burden during the day, the earth-moving trucks are transported out in the middle of the night, at this time people are asleep, and generally do not see the earth-moving trucks working.

This is because the soil is reused, and during the construction of the subway and the tunneling, it is compressed into the passage and used to strengthen the underground passage, which has a stronger load-bearing capacity.

Why can't you see the dirt coming out when digging the subway tunnel, and where does so much dirt go?

Carry earth at night. The subway near my house happened to be under construction, and there were more than a dozen muck trucks parked in the temporary parking lot next to me, all queuing up in the middle of the night to transport soil.

The opening of the subway has brought great convenience to people, but you know what? Subways are generally built at a depth of about 20 meters underground, and how exactly do subway tunnels dig so deep?

When the subway station tunnel is built, why can't I see the earth coming out? After reading it, I finally understood!

According to incomplete data analysis, 35 provinces across the country have already opened subway stations, which not only reduces our traffic travel, but also effectively reduces the pressure of road traffic travel. As everyone knows, in people's understanding, the whole process of building a subway station is extremely complicated, why did they dig so deep, but only did they not see the soil being transported out, where did they go? I'll give you a pediatric score!

In fact, the soil has not been transported, it is very related to the excavation tunnel machinery and equipment, after the operation of the project, it will be applied to large and medium-sized shield machines, so what is the shield machine? The shield machine is a kind of tunnel boring machine that applies the pipe jacking method, which is widely used in the geological structure of rock formations, and the geological structure is treated with soft foundation. As everyone knows, when the shield machine excavates forward, due to the expansion of the amplitude, nearly a quarter of the soil will be squeezed to both sides, and then a part of the soil will be consumed, and at the same time, the surrounding walls can also be reinforced.

In addition, unnecessary soil will be transported to the road surface, piled up by the construction team, and used as backfill, because the local railway line continues to be in the capital construction link, many areas must be buried sweetly, which can effectively ensure that the surrounding area is not prone to collapse and other conditions, so it is rare to see the soil will be smuggled out. In the end, there is the soil that is really not usable, and this part of the soil will be transported to other construction sites, such as the common road pavement, the plant community in the fence, or transported to the field landfill!

Often do not meet the soil is transported out, is because this work is all carried out at night, the slag truck can only transport this soil out at night, so there is no doubt that the soil dug up by the subway station is transported out in broad daylight, in fact, it is also to better and faster reduce the pressure of traffic travel work in broad daylight. There are also subway station entrances that are built in broad daylight, and they are all enclosed in detail, so it is impossible to observe how the construction was carried out from the outside.

I feel that the method of using the shield machine excavation is very scientific research, and there are many advantages compared with the traditional excavation method, such as unnecessary soil is used to advance the tunnel, which greatly improves the safety factor of the tunnel, and the traditional method not only has more soil, but also the safety factor is relatively poor. However, in today's high-tech development, it is easy to dig a tunnel, after all, it can be guaranteed in China! Do you think so?

The tunnel is hollowed out through some excavation machines. Because the machine squeezes some of the soil to the side, only a small amount of soil will be brought out, so the surrounding walls are very hard and not prone to accidents.

The construction of subway tunnels is very complex and cumbersome, and many large-scale equipment will be used in the construction of subway tunnels, such as shield machines, roadheaders and other advanced equipment; The reason why the soil is not transported out during the subway construction is that some construction equipment, such as the shield machine, squeezes the soil on both sides of the wall, and the rest of the soil will be placed in one place by the construction team to facilitate backfilling.

It is to excavate first through some techniques, and then carry out the construction, because some of the surrounding soil is squeezed to both sides, because it can have a reinforcement effect and can protect the wall.

The subway tunnel is constructed by means of a tunnel boring machine. After the tunnel boring machine excavates the tunnel soil, it is transported out via a conveyor belt.

In fact, many problems in life are closely related to everyone, but you may not pay much attention to these things. If you think about it, you might find these questions really interesting. When building the subway, a lot of soil was dug up, so what about the soil that will be go?

What will it do?

In fact, I am also very interested in this issue, and we all know that daily travel is also very necessary, but now people are more demanding speed, and if the means of transportation are very inconvenient, then everyone needs to spend a lot of time. Therefore, the country has actually invested a lot of money and time in the research and development of various means of transportation, such as subways and high-speed rail, which actually brings a lot of convenience to everyone. In fact, when building the subway, it also needs to be excavated, and a lot of soil will be dug up in the process, but everyone actually does not see this soil in life.

In fact, there is no way to use up these things to build the subway, and the remaining things may be laid on the construction site, or put on the urban greening construction work.

In fact, the wall next to the subway must be very strong, so that it can bear a certain weight, and the structure of the subway itself is also relatively special. Therefore, the soil can be used continuously, so that a lot of money can be saved to a certain extent, and the soil may be sold, of course, it may be directly used to build buildings or pave roads.

So you don't have to worry that the soil you dig up will be wasted, because the soil will actually be used elsewhere. The reason why many people can't see the excavated soil is actually because the soil is only transported out at night.

It will be used for construction, or it will be used for greening, and it will be used to pave roads, and some of the sand or stones that have been dug up will be sold.

Most of this soil is used in the subsequent subway construction, and a lot of soil is also needed to build the subway, and most of the soil will come in handy, so that the subsequent construction does not need additional transportation soil, and the excavated soil can be used.

It will be used in some construction sites, and later it can be used normally, to build houses, and it can also be used to sell and make building materials.

I think it's going to be used in the dirt yard, and it's going to be used to make land, it's going to be used to build houses, and it's going to be sold.

It should be used to build a house or do something else. Anyway, these soils are very useful.

The excavated soil will be used in some construction sites. Will be used for renovation.

There are generally the following three situations for digging the soil of the subway: 1. The soil of the subway will be transported to the slag yard on the outskirts of the city. 2. If there are other projects that require soil, the relevant parties will deal with the soil in a first-class way.

3. Earthwork balance: the soil dug up during the subway construction will be used back into the project.

The subway is a fast, high-volume, electrically powered rail transit built in a city. The world's first metro was the Metropolitan Underground in London, England, which was built in 1863.

Subway trains run on fully enclosed lines, and the lines located in the central city are basically located in underground tunnels, and the lines outside the central city are generally located on viaducts or on the ground.

The subway is an urban rail transit system (METRO) that covers all kinds of underground and above-ground right-of-way in urban areas, and is called "MRT" by the Taiwan Metro.

When the subway tunnel was built, why didn't I see any earth coming out? After reading it, I finally understood!

According to incomplete statistics, 35 cities across the country have opened subways, and its emergence not only eases people's travel, but also relieves the pressure of ground transportation. However, in our cognition, the construction process of the subway is extremely complicated, why did we dig so deep, but we didn't see the soil being transported out, and they all went to **? Let's give everyone a science popularization!

In fact, the soil has not been transported, it has a lot to do with the excavation of tunnel equipment, after the start of the project, a large shield machine will be used, so what is a shield machine? The shield machine is a kind of tunnel boring machine that uses the shield method, which is widely used in rock formations and soft ground formations. However, when the TBM moves forward, nearly a quarter of the soil is squeezed to the sides due to the force of expansion, which consumes some of the soil and reinforces the surrounding walls.

In addition, the excess soil will be transported to the ground and stacked up by the construction personnel for backfilling, because during the construction of the local railway, many areas need to be buried sweetly, which can ensure that there will be no collapse and other phenomena around, so it is rare to see the soil will be transported out. Finally, there is the soil that is really unusable, and this part of the soil will be transported to other construction sites by the transport team, such as our common road paving, vegetation planting in the barrier zone, or transported to the suburbs for landfill!

The reason why we can't see the soil being transported away is because this work is carried out at night, and the slag trucks can only transport the soil out at night, so you can't see the soil dug up by the subway during the day, in fact, it is also to better relieve the traffic pressure during the day. In addition, the intersections where the subway was built during the day were completely closed, so it was impossible to observe how the construction was carried out from the outside.

Some of this dirt is used to strengthen the tunnel, and the other part is removed at night so that people don't see it during the day.

Because some metro lines are only excavating at shallow depths, the soil will be backfilled in other areas after construction, and may be transported to other construction sites for use.

Because when they finish digging, they will fill in the soil and put it in the surrounding greenery or other places.

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When digging a subway tunnel, where does the excavated soil end up?

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Dear, when digging the subway tunnel, where did the excavated soil end up and reclaimed the sea.

Where the hell did the dirt go?

When digging a subway tunnel, where does the excavated soil end up?

Dear, when digging the subway tunnel, where does the excavated soil end up and make a useful contribution?