Introduction: The backfilling of the foundation of rural self-built houses is a vital link in housing construction, which is related to the stability and service life of the house. This article will analyze in detail the "two uses" principle that should be followed in foundation backfilling, and provide some professional advice to help you avoid potholes that may occur during the backfilling process and ensure the safety and quality of housing construction.
First, the selection principle of foundation backfill.
In the process of backfilling the foundation of rural self-built houses, it is very important to choose the appropriate backfill material. We should resolutely follow the principle of "two non-uses".
1.No construction waste and household waste for backfilling. Due to its special properties, construction waste is not easy to compact, and in the long run, the cracks in the soil will be infiltrated and washed by groundwater, resulting in hollow erosion of the foundation and affecting the stability of the house. In addition, the decay of household waste can pollute groundwater and have a serious impact on the environment.
2.Backfill is not done with soft soil. The soft soil has a high moisture content, which can easily lead to uneven settlement of the house, which seriously affects the structural safety of the house. Therefore, the use of such soils should be avoided during the backfilling process.
Second, the selection and application of backfill materials.
In terms of ensuring the quality of foundation backfilling, priority should be given to the use of in-situ soil layers for backfilling. The in-situ soil layer is the old soil layer dug out, which matches the foundation soil environment and can effectively improve the stability of the foundation. If the soil quality of the foundation is poor, you can consider using small gravel for backfilling, although the cost is slightly higher, but it can effectively improve the bearing capacity and stability of the foundation.
Third, the construction points of foundation backfill.
1.Before backfilling, the foundation should be thoroughly cleaned to ensure that the surface of the foundation is smooth and clean, free of debris and loose soil.
2.Control the moisture content of the backfill. The moisture content of the backfill is a key factor affecting the compaction effect. Too high or too low moisture content will affect the compaction effect of the soil, therefore, the best moisture content should be determined by field test during the construction process.
3.Layered backfilling, layered compaction. This is an important means to improve the quality of backfill. The thickness of each layer of backfill should be controlled within the range of compactability, usually no more than 30 cm. After each layer is backfilled, compaction equipment should be used for compaction to ensure the compactness of the soil layer.
4.Take good drainage measures. In the process of foundation backfilling, in order to prevent the impact of groundwater on the foundation, drainage channels should be set up in the backfill or other drainage materials should be used to ensure the dryness and stability of the foundation.
Conclusion: Although the backfilling of the foundation of self-built houses in rural areas seems simple, it has a significant impact on the quality and safety of houses. Following the principle of "two non-uses", reasonable selection of backfill materials, and construction in strict accordance with the construction points are necessary conditions to ensure the stability of the foundation and the safety of the house. Only by doing every step well can we build a safe, stable and durable house. Hopefully, the guidance and suggestions in this article can provide you with useful help in the process of backfilling the foundation of rural self-built houses. construction site