本文在国内首次利用大型离心机研究支挡结构问题,用简支板测出了不同过载下挡土墙的土压力及位移。 试验表明,砂性填土的离心模型试验结果能较好地与库仑方法吻合,用简支板这一简单的测量技术测土压力是较为可靠的。 本文的另一目的是对土工离心模拟技术进行探索。 In this paper, the large-scale centrifuge is used for the first time to study the support structure problem, and the soil pressure and displacement of the retaining wall under different overloads are measured by the simple support plate. Experiments show that the centrifugal model test results of sand filling can be well consistent with the Coulomb method, with a simple support plate measuring the soil pressure measurement is more reliable. Another purpose of this paper is to explore the geotechnical centrifuge simulation technique.