平顶山市区北部,位于山前缓坡地带。近年来,相继发生平房和楼房开裂情况。通过广泛调查研究和试验表明,建筑物发生事故是由于建筑物下膨胀性粘土地基而引起的。弄清膨胀粘土地基上建筑物的变形机理,对正确分析建筑物的开裂损坏原因是有着直接意义的。本地区建筑地基土层,分布极不均匀, Located in the north of Pingdingshan City, it is located on the gentle slope of the mountain. In recent years, cracking of cottages and buildings has occurred one after another. Extensive investigations and tests have shown that accidents in buildings are caused by the expansion of clay beneath the building. Understanding the deformation mechanism of the building on the expansive clay foundation is of direct significance to the correct analysis of the cause of the cracking of the building. The foundation soil of the construction of this area is extremely unevenly distributed.