Signs before a house collapse include subsidence and hollowing of the ground; serious cracks or deformation in load-bearing columns, beams, boards or walls; falling off of walls or ceilings; and abnormal noises in the house. The details are as follows:
1. Pay attention to signs that the ground is actually sinking, hollowing, or cracks are suddenly enlarging.
2. Serious cracks appear in load-bearing columns, beams, slabs or walls and continue to develop.
3. The load-bearing columns, beams, boards or walls have excessive deformation, and the wooden components or connecting parts are seriously decayed or have been eaten by white mosquitoes.
4. The plaster layer of the wall or ceiling suddenly peels off or falls off in a large area.
5. The house suddenly makes abnormal sounds, such as "clapping sounds", "chirping sounds", popping sounds, etc.
Common reasons for house collapse
1. The house is too old
Most of the houses in China were built in the past few decades, especially the reform of commercial housing. After that, the real estate market developed rapidly. Theoretically speaking, these houses are generally not very old and should have relatively good safety performance. However, in fact, due to problems in raw material quality, construction technology, construction level, quality control, etc., the actual service life of ordinary residential buildings is generally short. Some houses that were built earlier have gradually entered the scrapping period and become dilapidated houses.
2. Random modification of houses
Many house users make random modifications to their houses without fully understanding the structure of the house. For example, many users now transform their balconies into kitchens and pile too many heavy objects on the balconies, which destroys the original stability of the house. This is why many buildings have "fallen balconies".
3. The foundation is not strong
Geological exploration is generally an important part of house construction. "Tall buildings rise from the ground." If the foundation is not strong, the likelihood of the house collapsing is greater. big. Taking Chenzhou as an example, the underground geological conditions in Chenzhou are very complex and are a typical karst landform. There are many underground caves, underground rivers, and undercurrents. If the exploration is not in place, it is very easy to have various foundation and piling problems.
Not only that, the burial depth, width and depth of the underground river, the thickness and integrity of the upper rock layer of the cave, the nature of the subsurface soil layer, the structural type of the proposed building, and Load size, length, width and height dimensions, etc.