Because this area can be regarded as a dilapidated house, it was renovated in order to save land resources and ensure safety.

The definition criteria for dangerous houses: The foundation of the house has slipped, the bearing capacity of the house is seriously insufficient, or other special geological reasons have caused uneven settlement, causing significant tilt, displacement, gaps, distortions, etc. in the structure of the house, and has a tendency to continue to develop downwards.

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Uneven settlement of the foundation due to the increased load of the connecting building or the increased load of the local layer addition and other man-made factors, or due to the aging, corrosion, brittleness, and breakage of the foundation, causing structural deformation of the house and continued development

the trend of.