一、前言土工模型试验可以克服理论计算中土性指标及简化假定不符合实际的影响,也可避免现场原型试验耗资、费时及试验条件不易控制的不足,所以它具有更大的实用性。将原型尺寸按几何相似缩小的土工模型,在室内重力场下的试验称为普通土工模型试验。它因其自重应力远远小于原型,因而不能反映原型所发生的现象。然而,将相似模型放在离心机内,在离心 I. Introduction Geotechnical model test can overcome the theoretical calculation of soil indicators and simplified assumptions do not meet the actual impact, but also to avoid the prototype of the site cost, time and experimental conditions are not easy to control the lack of, so it has greater practicality. The geotechnical model that reduces the prototype size by geometric similarity is called the ordinary geotechnical model test under the indoor gravity field test. It is due to its self-weight stress is far less than the prototype, which can not reflect the prototype of the phenomenon. However, a similar model is placed in a centrifuge and centrifuged