What is the large-scale settlement in Jinnan, Tianjin?

An aerial video caught the attention of netizens on Tianjin Jinnan. The video shows that there is a large area collapse in this area, which is "rare in the world".

Tianjin Jinnan area is an important development zone in Tianjin. However, the recent aerial video shows that there has been a large area of subsidence in this area, which makes people question the stability of land and urban planning.

On the evening of May 3 1, a huge wave rose on the ground of Balitai Road, East Gate of Country Garden, Balitai Town, Jinnan District, Tianjin, which enlarged the road surface and caused cracks to sink in nearby high-rise residential buildings.

Aerial video screenshot

Experts in geotechnical engineering, geological structure, earthquake and emergency. After comprehensive analysis, it is considered that the causes of land subsidence and displacement deformation are complicated. At first, it was considered to be local sudden and differential land subsidence, and such a large area of land subsidence occurred in a short time. The specific reasons need further investigation and determination. More than 20 experts from the Ministry of Natural Resources, the Emergency Management Department, the Ministry of Housing and Urban-Rural Development and other the State Council departments have arrived in Tianjin, and set up relevant work classes to conduct uninterrupted monitoring throughout the day.

I looked up some information on the Internet, and some analysts said it was the following reasons for your reference:

Geological factors: the geological conditions in Jinnan area of Tianjin may be one of the reasons for the settlement. For example, the change of groundwater level, the characteristics of soil and the structure of underground strata may affect the stability of land. Human activities: engineering activities and urban development may also have an impact on land. Such as large-scale underground excavation, groundwater extraction and the weight of buildings. Local residents also have many views on this incident, and some say that drilling geothermal wells evacuated the groundwater layer. Some people don't believe this statement and think that a geothermal well should not have such a big impact. Some netizens talked about it, and even talked about the problem of flower beds. Some netizens said that this is an unfinished building, and the quality is simply not good. ...

Mr. Wang (pseudonym), who lives in Jin Feng Courtyard Community of Country Garden, told reporters that on the afternoon of May 3 1, he heard that some sections of Balitai East Road outside the community were tilted upward, and then the road was closed. Later, he found that the residential building where he lived was also cracked. Around 6: 00 or 7: 00 in the evening, the cracked buildings in the community were also closed. It is said that more than 10 buildings were affected, and 37-52 buildings were "cordoned off", which were basically high-rise buildings.

The subsidence caused 3000 people to leave their homes, and many people felt that they had no home when they woke up! At present, thousands of owners in Jinnan District of Tianjin are forced to move or stay in hotels.

In a word, I think the impact of this collapse problem is still great, and there will be many problems in the future, such as housing prices and various developments:

Just as large-scale subsidence may lead to structural damage of buildings and infrastructure, affecting the lives of residents and the normal operation of cities. If it were me, I wouldn't come back to live, and my safety is not guaranteed ~

And the ground is uneven due to settlement, which may lead to road collapse and pipeline rupture, and traffic also brings great risks. Even, the economy has a great impact, such as affecting the value of land and commercial activities. So pay attention to this problem.