岩土工程学报2013，Vol.35Issue(7)：1375-1380,6.
扁铲侧胀仪的改进及应用
Improvement and application of flat dilatometer
摘要
Abstract
With the advantages of little soil disturbance,good continuity of the test data and good prediction of mechanical properties of in-situ soil,flat dilatometer tests have been used in more and more projects.But the rate of pressurization and other factors bring errors to the test results in flat dilatometer tests,and it's difficult to evaluate the error and give the emendatory results.The pore water pressure cannot be measured directly by the flat dilatometer tests.Thus,the micro-displacement and pore pressure senors are installed on the flat dilatometer to make it change into the pore pressure and displacement flat dilatometer.It can regulate the results by itself and measure pore pressure directly.The principle,method and procedure of the pore pressure and displacement flat dilatometer tests are introduced.The differences between the pore pressure and displacement flat dilatometer tests and the flat dilatometer tests are also given.The results measured in the pore pressure and displacement flat dilatometer tests are more accurate and stable by comparing with these of the flat dilatometer tests.The in-situ lateral earth pressures in the test field of Weisan Road are measured in the pore pressure and displacement fiat dilatometer tests for the first application.关键词
孔压位移扁铲侧胀仪/自校准/孔隙水压力/对比试验/原位静止土压力Key words
PDDMT/ result regulation by itself/ pore pressure/ comparative test/ in-situ lateral earth pressure分类
建筑与水利引用本文复制引用
刘学彦,朱定华,袁大军..扁铲侧胀仪的改进及应用[J].岩土工程学报,2013,35(7):1375-1380,6.基金项目
国家自然科学基金项目(50878015,51178027) （50878015,51178027）
