中文摘要：

为了探讨非全充填裂隙的变形特性对工程稳定性产生的影响,采用法向压缩、侧向约束的方式,研究了非全充填裂隙的动态变形模量.研究发现：应力作用下,充填介质结构逐渐发生变化,随着应力的增大充填介质发生破坏,其碎屑、颗粒向裂隙空间移动,直至完全充满裂隙空间,并逐渐压实,导致充填裂隙变形模量呈现动态变化的特征.实验结果表明：充填裂隙的变形模量随应力增加呈近直线状增大,且具有高度的重现性.充填宽度相同时,充填裂隙的变形模量随着充填介质泥砂配比的逐渐减小而减小.相同泥砂配比条件下,充填裂隙的变形模量随着充填宽度的增大而增大.

英文摘要：

In order to investigate the effect of the deformation characteristics of partly-filled fracture on engineering stability, based on the experiment method of normal compression and lateral restraint, dynamic deformation modulus of partly-filled fracture is researched. It suggested that, the structure of filling medium began to change owing to the effect of stress. The filling medium was smashed with the increase of the stress. At the same time, the fracture space was filled with granules of medium till the space was full filled and the medium became dense. The result is that deformation modulus had dynamic characteristics. The experimental resuits showed that the deformation modulus of filled fracture increases linearly with the increase of stress, at the same time, it has a high degree of reproducibility. When the filled width is same, the deformation modulus of filled fracture decreases with the decrease of the configuration ratio of cement-sand. While the configuration ratio of cement-sand is the same, the deformation modulus of filled fracture increases with the increase of the filled width.