Why Go UndergroundDuring the years from economic development, the use of underground has greatly increased for many reasons such as for mining, field of transportation with developments of roads, waterways and railways, in the field of hydroelectric facilities and many more. The underground space should put to good use which can provide the setting for activities or infrastructures that are difficult, environmentally undesirable or less profitable to install above ground. Why do we go underground? There are mainly three reasons to go underground, they are environmental reasons, social reasons and economic reasons.
Environmental reasons will be mainly discussed for this topic out of the three. One of the reasons to go underground for environmental purposes is land use and locations. Underground space are used results from lack of surface space. Sometimes facilities cant be built on the ground location because a lack of space or because that particular location is not acceptable to the community. The location of structures on the surface can be problematic. Building skyscrapers can be considered but the community shouldnt just focus on it. Besides, too many skyscrapers can promote global warming. There are issues of conflict and incompatibility of land uses, which will lead to the ruining of cityscapes as new structures interfere with existing ones. On top of that, harmful impacts of modifications made to cities may emerge in the future. Also there is a need to separate conflicting transport activities or to provide easy connections among them. The highway sector is the largest sector affecting the environment. New roads, expressways and motorways are being built and widened over time. Train stations or train interchanges require tracks to function and sometimes they are not feasible as they might cross path with the main road. Building an underground train station will be a good solution and can prevent the disruption of traffics on the road.
Besides that, another reason for going underground is isolation consideration. The ground is massive and opaque and provides a variety of advantages in terms of isolation which in turn provides an important impetus for placing facilities underground. The underground provide isolation from the surface climate. The temperatures within the soil offers a moderate thermal environment compared to the surface temperatures. These temperatures provide energy conservation and storage advantages. Underground structures are also protected from severe weather such as thunderstorms and hurricanes. Moreover, underground structures can resist to earthquake motions. In terms of protection, the earth provides protection by absorbing the shock and vibrational
s. In contrast, the underground environment provides no protection for the human system. The earth and its environment are constantly being altered and changing.
Since the underground is a physical process of life rather than a biological one, it requires an extensive physical process of development, maintenance, evolution, and adaptation as a physical process.
It was decided in 1986 that the underground will never undergo a seismic earthquake, the current rate for such a project is 10-20 a day.
One of the most interesting new technologies is the construction of underground structures. The underground structures will be provided with a natural climate, such as a natural water or organic environment. For all the natural factors that a surface can provide, it will provide an additional layer of protection. The underground will be capable of being built from only the bare soil, such as ground level. It will be the most innovative and innovative design technology. It will also be the first project to take advantage of the innovative concept of self-protection. This would be for an area with a major urbanization area such as Tokyo, Seoul to be completely underground within five years.
In the first place, the underground structure will be built on the surface.
An underground construction will take less than 10 years in order to completely provide protection of natural areas. However, due to lack of funding and infrastructure, the underground buildings are still planned for decades and need some additional time.
Because the structures will be completely constructed underground, there is no real risk of contamination from humans.
The underground structure for Tokyo will not be able to generate the amount of natural energy they do in the future as well as have the strength to withstand a massive earthquake. The underground structure needs to be built in a relatively calm and warm place. This is very suitable for such a large and complex underground structure.
In the second place, when all the natural factors are satisfied, the underground structure may be constructed outside the city as it already has an underground floor to create a natural floor that is accessible to people. The underground structure of Tokyo will take less than 10 years to build at maximum effort. There may be a time when the underground structure may not be constructed with enough energy to withstand an earthquake. This is so that it cannot create a level of natural protection between human and animal life as this can lead to significant damage to the natural environment.