硅酸盐混凝土与岩石材料的动态力学性能比较研究  

Dynamic Mechanical Performance Comparison Between Silicate Concrete and Rock

作　　者：夏正兵[1] 

机构地区：[1]江苏城市职业学院建筑工程学院,江苏南通226000

出　　处：《水利与建筑工程学报》2016年第3期124-127,148,共5页Journal of Water Resources and Architectural Engineering

基　　金：江苏省九三学社科技创新基金项目(YHK1408);江苏省江豪专项资助基金项目(1503)

摘　　要：通过采用SHPB(分离式霍普金森压杆)装置对混凝土和岩石进行了五种不同应变率下的动态压缩实验,由此得出两种材料的基本动态力学参数,从而进一步归纳出这两种材料的动态抗压强度、峰值应变与应变率的关系,并引入比能量吸收对材料的动态破坏机制进行研究,明确两种材料的动态破坏机制,这为今后的相关工程有序开展提供了丰富的理论指导,在保障工程顺利进行的同时,最大限度的提高了工作效率。To compare dynamic mechanical performance of silicate concrete and rock,this study performed dyn amic compression test with five different strain rates on concrete and rock using Split Hopkinson Pressure Bar（SHPB）to obtain basic dynamic mechanical parameters of them and then summarized the relationship of dynamic compressive strength,peak strain and strain rate of two materials.Moreover,specific energy absorption was introduced to confirm dynamic damage mechanisms of concrete and rock materials.This work can not only help to improve the working efficiency to the largest extent but also ensure the smooth development of engineering,providing rich theoretical guidance for development of related engineering in the future.

关 键 词：混凝土 岩石 动态力学性能 分离式霍普金森压杆(SHPB) 

分 类 号：TU502.6[建筑科学—建筑技术科学]