房屋改建时作用于地基上的负荷一般是增加的,这就要求对基础予以加强,因而其尺寸也需相应加大。有些文献已论证了由于荷载长期作用,土壤的力学性质在多数情况下均会得到改善,所以可采用比建筑法规确定的原有地基承载力较高的数值,从而节约这些建筑物的改建工程费用。 The load acting on the foundation during the remodeling of the house is generally increased, which requires strengthening the foundation, and therefore its size must be increased accordingly. Some literatures have demonstrated that due to the long-term effects of the load, the mechanical properties of the soil will be improved in most cases. Therefore, it is possible to use higher values ​​of the original foundation bearing capacity determined by the building regulations, thereby saving the cost of reconstruction of these buildings. .