膨胀土地基效应的显著特点是动态变形,即在自然条件下,地基自发地进行着缓慢的、无休止的、不规则的周期性运动。观测表明这种运动形式不是单纯的升降运动,而是在升降的同时还伴随着一定量的水平变动,力是运动的源泉,本文试从力学角度来探讨膨胀土的地基效应和其上建筑物的破坏机理,不当之处请指正。 The remarkable feature of the swelled soil base effect is dynamic deformation, that is, under the natural conditions, the ground spontaneously undergoes a slow, endless, irregular periodic movement. The observations indicate that this form of movement is not a simple movement of the elevating movement, but is accompanied by a certain amount of horizontal movements while the elevating and lowering. Force is the source of the movement. This article attempts to explore the foundation effect of expansive soil and its buildings from the perspective of mechanics. Destruction mechanism, please correct me.