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When laying the foundation for self-built houses in rural areas, the method of laying stones can be feasible under certain conditions, but there are many limitations and requirements. The specific analysis is as follows:

Feasible Situations

Enhanced Drainage: When the foundation is located in an area with a high groundwater level or poor soil permeability, laying stones can enhance the drainage performance, reduce water accumulation in the foundation, prevent the soil from softening, and ensure the stability of the foundation.

Increased Bearing Capacity: If the foundation soil is soft, laying a layer of stones at the bottom and compacting them can increase the bearing capacity of the foundation, distribute the load of the upper structure, and reduce the settlement of the foundation.

Treatment of Special Geological Conditions: In areas with special geological conditions such as a silt layer, stones can serve as an isolation layer to prevent soft soils like silt from affecting the stability of the foundation, providing a stable foundation for subsequent construction.

Infeasible Situations

Areas with Good Soil Quality: In areas with uniform soil quality and high bearing capacity, such as areas with solid clay or sandy soil, laying stones additionally may increase costs without obvious benefits, and may also affect the overall performance of the foundation due to improper laying.

Lack of Professional Construction: If there is no professional guidance when laying stones, problems such as stones of different sizes, uneven laying, and insufficient compaction will lead to uneven force on the foundation, increasing the risk of foundation settlement and cracking of the house.

Neglect of Subsequent Treatment: Only laying stones without subsequent treatment such as pouring concrete, the gaps between the stones will make the integrity of the foundation poor, and it cannot effectively bear the weight of the house, which is likely to cause safety problems.