For a house built from the same area that may be demolished to build a new one When additional fillings may be used, rubble bricks and concrete scraps from the old back may be used to fill the land. Which in this case will cause more soil subsidence problems than usual Because those scraps will not mix with the soil. There is a gap And over time, if water seeps through, the soil will flow down instead of the gap. Causing subsidence into a hole or a cavity under the house
Land reclamation if you can choose the time period should be carried out during the rainy season Because rainwater that flows between the soil will help the soil to collapse and tighten.
2. Laying the foundation of the structure from scratch
Preventing soil subsidence until a hollow under the house is formed. The best way is to have piles to support the weight. In general, the house structure is defined as having long piles that go down to the subsoil layer or the average sand layer about 18 - 21 meters, depending on the analysis of the engineering properties of the soil layer. Which will be brought Calculate and design the load carrying capacity of the soil layer as accurately as possible according to engineering principles. To support the weight of the house
Considerations for laying piles
Some plots of land may have been pits, swamps, canals, marshes, or old garbage dumps. Construction of houses in this area should be drilled to explore the soil layer. Should not use the comparative method from the adjacent area. Because the depth of the pile may be in the same position as the old waste pit. Over time, the waste decomposes. Will cause the pile to collapse
It is important to prepare the area before building a house. If the homeowner has prepared the land early. And have experts to give advice and closely recommended Whether it's an engineer, architect or service provider of a home building company. It will help to lay the foundation for building a house to be more standard and strong.