扁铲侧胀试验在软土地基评价中的应用研究  

Application of dilatometer test to evaluation of soft foundation

作　　者：徐超[1] 罗松[1] 董天林[1] 叶观宝[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《岩土力学》2005年第10期1633-1636,共4页Rock and Soil Mechanics

基　　金：江苏省交通厅科研项目(No.03Y023);上海市重点学科基金项目(沪教委科[2001]44号)联合资助。

摘　　要：在回顾分析国内外利用扁铲侧胀试验评价地基土性参数基础上,介绍了应用扁铲侧胀试验(DMT)和其它试验手段进行高速公路软土地基综合分析评价所取得的一些成果。根据扁铲侧胀试验结果估算的不排水抗剪强度与十字板试验结果基本一致,并能够反映土的强度随深度增长的规律,也分析了造成扁铲侧胀试验结果与室内试验结果之间差异的因素,研究结果可为扁铲侧胀试验在我国岩土工程领域的应用提供参考。After reviewing the research results and application of the flat dilatometer test （DMT） in the evaluation of soft soil parameters at home and aboard, authors introduced the application of DMT and other testing techniques to analyze the soil engineering properties of soft foundations for expressways synthetically. The calculated undrained shear strength based on DMT results is in accordance with that of field vane shear test （VST） basically; and the undrained shear strength from DMT also reflects the law of soil strength increasing with depth. Besides, the influential factors causing the difference between DMT and laboratory test results were analyzed. The results would provide reference for the application of DMT to domestic geotechnical engineering field.

关 键 词：扁铲侧胀试验 软土 土性参数 应用 

分 类 号：TU447[建筑科学—岩土工程]