利用强夯模拟试验研究饱和砂土强夯动本构关系_韩文喜.pdfVIP

1004-9665/ 2001/ 09( 04)-0362-06 Journal of E ngineering Geology 工程地质学报 X ¹ ¹ º 韩文喜 张倬元 李 强 ( ¹ 610059) ( º 100101) , , , 90 MTS810 , , , , , , , + :TU441 .4 :A STUYD ON THE DYNAMIC CONSTITUTIVE LAW OF SATURATED SANDY SOIL BY DYNAMIC CONSOLIDATION MODELLING TESTS ¹ ¹ º HAN Wenxi ZHANG Z uoyuan LI Qiang ( ¹ Chengdu University of Technology , Chengdu 610059) ( º A irp ort Design Instit ute, CAA C, B ei ing 100101) Abstract Saturated soil is a kind of loosed medium filledwit water in t e pores. Suc soil will be deformed nonlinear- ly w en subjected to t e dynamic load, ence its constitutive law as its specific features. A dynamic triaxial soil testing system MTS- 810 wit ig precision and ig sensitivity is used to conduct a series of modelling tests for assessing t e dynamic consolidation effects on soil foundation for t e first time. T e test conditions are in full accord wit t e actual soil conditions. T e test data including dynamic stress and displacement aswell as pore pressure can be collectedwit t e time interval of millisecond. By combining wit different test conditions, a lot of test data wit ig precision were ob- tained. On suc a basis, t e variation of all variables wit time in process of dynamically consolidation as well as t eir interralation are compre ensively studied. T e result provides a scientific base for dynamic consolidation researc . Using t e modelling test results, t e dynamically constitutive law for dynamic consolidated saturated soil is derived. It is ob- tained based on t e precise dynamic consolidation modelling test. T erefore it can reflect t e actual soil state of dynamic consoli