房屋基础是建筑物的一个重要组成部分,它承受全部上部结构的荷载,并把所有重量合理地传递到地基上去。在房屋基础工程中,有时根据地质情况,需要把基础底面标高以下若干深度内的天然土挖去,换上密实的人工砂垫层,在它上面砌筑基础,这叫做砂垫层基础。房屋砂垫层基础是处理软弱地基的一种有效措施,并能降低基础造价、节约工程投资,成为我国城乡建设中一种经济实惠的基础形 The foundation of the house is an important part of the building. It bears the loads of all the superstructures and transfers all the weights to the foundation. In the basic housing project, sometimes according to the geological conditions, it is necessary to dig out the natural soil within the depth below the base floor elevation, replace the dense artificial sand cushion, and build the foundation on it. This is called sand cushion foundation. The foundation of the house sand cushion is an effective measure to deal with the weak foundation, and it can reduce the basic construction cost and save the project investment, becoming an economical basis for urban and rural construction in China.