摘要
当代土力学的研究中,土工离心模拟试验是一门正在发展中的新兴技术,土工离心机则是它的主要设备。本文不仅对土工离心机在国内外发展的概况作了介绍;对如何选择离心模拟试验的设计参数作了说明,还对土工离心机设计中,例如空气流场的选择、封闭机坑(不通风)中风阻功率的估算、温升控制以及离心机结构设计作了较详细的分析;对离心机运行中的动力平衡、运行安全监测、运行速度的自动控制和模拟试验中数据采集等系统作了简要说明。
At present, in the research of soil mechanics the modelling test of geotechnical centrifuge is a new emetging technique, and the geotechnical centrifuge is its principal equipment. In this paper, the developmental conditions of geotechnical centrifuge at home and abroad are summarized, and how to select design factors for the centrifuge modelling test is described. Some of the key problems are emphatically annlyzed in the design of geotechnical centrifuge such as choice of air current field, evaluation of power against air drag force, temperature rise control in an enclosure(no ventilation) and chief parts for structure design of geotechnical centrifuge, etc.Some systems of centrifuge operating are also sumed up, for instance, dynamic balance system, safety control system, automatic controlling system for centrifuge speed and dataacquisition system of modelling test, etc.,
