大型三轴流变试验轴压及围压装置与应用

New axial and confining pressure providing equipment in large triaxial rehological tests

针对道路工程领域中高填路堤土体填料应力特点,提供一种新型粗粒土三轴流变试验的轴向压力和围压力装置,克服了现有粗粒土三轴流变试验中加载持久性及稳定性问题。采用该装置研制了适合粗粒土路堤填料的大型三轴流变试验仪(命名为GSRT),用于粗粒土路堤填料流变试验,为开展道路工程领域的粗粒土路堤填料三轴流变试验研究提供了工具。

In order to study the granular soil＇s rheological properties in embankment, a new axial and confining pressure providing equipment for large triaxial rehological tests were presented. A large triaxial rheological testing system （named GSRT） for granular soil was developed with the new axial and confining pressure providing equipment to surmount the load permanence and stability defect in large triaxial rehological tests, on which the granular soil samples with the large dimension and large diameter grain in the soil sample can be experimented. The development of this large triaxial rheological testing system （named GSRT） provides the testing tool to study the granular soil fillings＇ rehological properties in road embankment.