体缩 meaning in Chinese

bulk shrinkage

With the data recorded by computer , the author studies the experiment progress in detail , which includes the development of pore press , strain , strength of the sand , etc . connecting the development of these phenomena with the development of stress path , the author finds new mechanism which can explain the phenomena in the experiment . what is more , according to the dynamic test of the sand , there appears a steady state at the last phase of the development of strain and stress path , in which the strength of the sand is studied because it is an important parameter in evaluating the stability of sand against liquefaction . secondly , the dynamic constitutive relation was studied through the dynamic tri - axial test
本文首先采用目前国内较先进的微机控制动三轴仪，利用其可以适时采集和储存数据的优势，对砂土的实验过程进行了细致的分析，研究该过程中孔隙水压力发展、轴向应变发展以及它们与应力路径之间的关系，对饱和砂土的剪胀、剪缩和卸载体缩等多个方面进行了研究，探索了砂土的动力特性，分析了影响砂土抗剪强度的各种因素，这些因素既包括土本身的特性(土的密度、结构、级配、透水性以及初始状态等) ，又包括动荷载的特征(振动力幅值大小和振动频率等) 。