I checked the major landslides in Guizhou in recent years, which are generally concentrated between May and October.
The cause of the accident shall be subject to the official report.
To sum up, because it is the rainy season, a large amount of rainwater infiltrates, which reduces the shear strength of the earth rock layer after the formation of ponding, resulting in the occurrence of landslides, that is, in the rainy season, the probability of landslides in Guizhou will be greatly increased.
We must prevent the disaster before it happens.
In addition, the establishment of field disaster monitoring and early warning system and geological disaster expert analysis system are very important.
Of course, there are many mountains in Guizhou, and the quantities are very large.
Beijing News our video production (ID: webvideo) according to Bijie municipal government website, after the full search and rescue of relevant departments, as of 14:05 on January 4, all 17 missing persons from a landslide on a construction site under construction in Jinhaihu new area of Bijie City have been found, of which 3 injured have been sent to the hospital for rescue at the first time, and their vital signs are stable.
After further verification, the landslide volume is about 35000 m3 (including 30000 m3 of earthwork and 5000 m3 of stonework), and a total of 17 people are trapped.
▲ all 17 missing persons were found in the landslide at the construction site under construction in Bijie, Guizhou: 14 people were killed and 3 injured.
The specific situation has to be investigated by relevant personnel.
We all know that earthquakes, rainfall, snow melting and River Scouring can induce landslides, but human activities can also induce landslides, such as excavating the foot of the mountain slope, building roads, building houses and factories along the mountain, stacking on the slope, blasting, reservoir water storage or discharge, mining, etc.
From the perspective of practical operation, there are many methods to hang reinforcement mesh and spray concrete on the mountain slope, build intercepting ditches at the landslide boundary and drainage ditches in the landslide area.
However, January is not the rainy season in Guizhou.
Of course, things have happened.
In the future, how to protect is the focus.
At present, the prevention and control of landslides mainly adopts early detection, prevention first, finding out the situation and comprehensive treatment, so as to make a radical cure and leave no future problems.
At present, the rescue work has ended.
As can be seen from the following map, the construction site of Bijie first people’s Hospital Branch training base project is located near the mountain.
▲ picture source: CCTV news client ▲ picture source of rescue scene: Guizhou fire fighting, judging from the landslide accident, it didn’t happen in the rainy season, so what’s the reason? Due to the large number of plateaus and mountains, coupled with the influence of subtropical humid monsoon, Guizhou has abundant precipitation, which makes Guizhou a high incidence province of landslides.
(source: integrated on the Internet, the picture and copyright belong to the original author.
It can be seen that there is no rain.
However, the rainy season in Guizhou is between May and October.
According to the Information Office of Bijie municipal government, at about 19:00 on January 3, a landslide occurred at the construction site of Bijie first people’s Hospital Branch training base project located in Guihua street, Jinhaihu new area, Bijie City.
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I checked the weather conditions of Bijie in recent days.
For example, Guizhou Guanling landslide on June 28, 2010, Guizhou Dafang County landslide on July 1, 2016, Guizhou Shuicheng landslide on July 23, 2019, and Bijie Zhongping town landslide on July 8, 2020.
The aftermath disposal and accident investigation are being carried out in an orderly manner.
The remaining 14 people have no vital signs.
This is not the situation we want to see.
For example, there were landslides in Zunyi, Guizhou when building rural roads in 2009, while landslides due to road construction or building houses along the mountain occurred from time to time throughout the country.
It is cloudy from January 1 to January 3, 2022.
Of course, this is due to the terrain of Guizhou, that is to say, does the construction site have the risk of building a house near the mountain? So the question is, is there any connection between landslide and construction site? Is it possible that the mountain has a tendency to crumble after being washed out in the rainy season, and a landslide is formed after the vibration and interference of the construction site? The above is just my personal guess.
For example, the Fuquan landslide in Guizhou in 2014 was caused by mining.
From the video, the construction site will not be too far away from the mountain.
Why did landslides occur? We should know that the inducing factors of landslides are not only natural factors.
