【摘要】 土工格栅作为一种加筋(加固)材料在工程中的应用越来越广,但加筋机理和设计理论方面的研究都落后于工程实际。为此,人们不断研制各种试验设备进行加筋机理和设计参数试验研究。列举了当今国内外已有的主要试验设备、试验方法及测试结果分析方法,分析了试验的影响因素、存在的问题及今后的发展方向,着重介绍了长沙理工大学为实施西部膨胀土课题研究所开发的大型数控拉拔试验系统。更多还原

【Abstract】 As a reinforcing material,the geogrid is widely used in civil engineering practice.However,the study on the reinforcement mechanism and the relevant design theory are much backward relative to the(engineering) application.Therefore,a variety of testing devices are developed to carry out the research of(reinforcement) mechanism and design parameters.The main devices developed,testing methods and analysis of test results for geogrid pullout test are cited.The effective factors,existing problems and the trends on pullout test are also discussed in this paper.At last,a large digital control pullout system developed for(conducting) expansive soil testing study has been introduced.更多还原