So far, the important information of the whole event has been collected, and the key information that can be deduced from the truth has been thickened.
After observing the photos and videos at the beginning, we found two points: first, the road sign in the lower right corner of the photo, It shows that there is a road called “Haibin Avenue” not far from the sloping house.
According to the color of the house, the inclined house can be determined as the two buildings located behind the car workshop.
Secondly, according to local residents, there was no obvious crack or settlement before the construction of the project.
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The relationship between the house and the foundation pit knows the exact location of the house, and it is no longer difficult to find the relevant information of the foundation pit project.
Most of the earth on the far side of the foundation pit has been excavated.
It is impossible to find which area it is in.
The information between November 2019 and February 2023 was screened in the search engine, and a public information released in April 2022 was found.
The warning line had been set up at the scene.
The gray-white house tilts forward as a whole.
One is a 6-7 storey self-built house with a gray-white appearance, and the whole house inclines forward by 10-20 degrees.
The location of the foundation pit should be the open space at the top right of the map, and the corner is facing the inclined house.
However, if this event is attributed to the quality of the house, there will be many violations of conventional knowledge and basic facts.
The transport vehicle filled with cement drove to the construction site.
Therefore, in addition to the quality of the house itself, it is also said on the Internet that the inclination of the house may be related to the foundation pit.
The road sign and the sign in the video combine these two information and quickly narrow the scope to area 3.
Analysis: Mist Dispersal 01: The quality defect of the house itself? In the collapse accident of civilian houses in Hunan last year, the unreasonable structure and multiple capping of houses were important inducements for the final collapse.
Looking back at the photos of the collapse accident of civilian houses in Hunan, we can also find that even if the whole building collapsed in pieces, it did not lead the adjacent houses to collapse together (only the upper part of the adjacent houses suffered from non-structural damage).
The cause of the incident was immediately apparent.
To find out which statement is true, we should first find out: (1) Where is the specific location of the inclined house? (2) What is the spatial relationship between the house and the foundation pit? Although the event was reported by several news media, the exact location of the event was generally described, most of which only quoted the official press release, that is, the event occurred in “Lehua Street, Zhanjiang Economic Development Zone”.
There are traces of water seepage on the surface of some retaining piles.
Indeed, the quality of self-built houses has been criticized.
On the same day of the accident, a truck full of cement was taken and transported to the construction site.
Through this information, the development project renderings again narrow the construction time range of foundation pit works to no earlier than May 2022.
If you only use this information to search on the map, you will undoubtedly be looking for a needle in the sea.
(Click here to view) On February 22, many videos were released on the Internet, and many houses in Zhanjiang were tilted to different degrees.
The second is the picture in the sixth second of the video.
In addition, in the second half of the opening video, a large foundation pit is being excavated in the adjacent area of the inclined house.
The basic information of the development project coincides with the location of the foundation pit.
The self-built housing cluster in Lehua Street can only find more valuable clues through the details in photos and videos.
The foundation pit adjacent to the inclined house.
Fortunately, the disposal was timely, and there were no casualties.
That is to say, the cement arrived at the scene after the accident.
Overall view of foundation pit project (quoted from the official account “Zhanjiang City foto Club”, some photos below are similar) On the side near the inclined house, the engineering enclosure has been removed, and there are many bags of cement on the ground.
The other is the dark red roof house next door, which is slightly lower in height and tilts towards the gray-white house.
According to the conventional development process of such projects, the foundation pit project is likely to start at the end of 2022.
So, what is the real cause of the event? Data: Among the many damaged houses in the fog, there are two most serious ones.
First of all, the quality defects of the building foundation may indeed cause the house to tilt, but the scope of influence is limited, and it is often limited to itself, and will not affect the adjacent houses.
This further aggravates the insecurity of the majority of residents renting houses in urban villages.
In other words, the excavation depth of the foundation pit will not be small.
The quality problems of houses are generally limited to themselves.
The map was taken in November 2019, at that time Engineering construction has not been carried out yet.
The sign in the blocked area includes “car wash/tire repair” The word “” means that there is a car maintenance workshop here.
Source: In the video of N video, more than one private house has a potential safety hazard, which can not help but remind us of the collapse accident of private houses in Hunan last April.
According to the public information, this is a commercial+residential development project, which will have three floors of basement after completion.
The inclined house is in area 3.
From another perspective, only half of the red-roofed houses are inclined, and the inclined part is separated from the original part by a big crack.
From the photos below, the foundation pit structure adopts the form of row piles+internal support.
There are five self-built housing clusters in Lehua Street, and each house looks like a thousand people.
If we say that the tilt of houses is caused by their own quality, we will draw a slightly absurd conclusion: the three buildings that tilt in the event have foundation defects and reach the critical point at the same time.
The inner support is set as a steel/concrete support mixed truss around the foundation pit, supplemented by the middle concrete brace and the four corner concrete corner brace for force transmission.
So, is this incident similar to the Hunan accident, but also caused by the quality problems of the houses themselves? The reason why this incident attracted attention quickly was that, in addition to the self-built houses, several houses were inclined at the same time.
