蠕变三轴仪的改装与验证

蠕变现象作为岩土材料的固有性质广泛存在于实际岩土工程中,是进行地基沉降及边坡稳定性分析等的一个重要因素,并成为研究的热点。系统阐述与分析了蠕变试验所涉及的试验仪器与加载方式,根据实际工程及科研对应力控制式三轴仪的需求,结合室内常规试验仪器优缺点,对常规三轴仪进行了改装,获得了可以进行应力控制的蠕变试验三轴仪。该仪器具有荷载稳定,操作方便等优点,并经试验进行了验证,具有一定推广价值。

Modification and verification of triaxial apparatus for creep test

Creep plays an important role in geotechnical related analysis,such as foundation settlement and slope stability.The creep characteristic has been a focus all over the world.This paper discusses the equipment and testing procedure for the creep test,and proposes an approach to modify the conventional triaxial test apparatus to meet the requirement for creep test.The modified equipment is capable of performing stress controlled triaxial creep test.The test results from the modified equipment compares well with results of experimental test.