土结构研究的回顾及新设想  

A Review and Prospects of Soil Structure Research

作　　者：韩爱民[1] 李彤[1] 徐洪钟[1] 

机构地区：[1]南京工业大学交通学院,南京210009

出　　处：《科学技术与工程》2015年第20期181-188,共8页Science Technology and Engineering

基　　金：国家自然科学基金(41072217)资助

摘　　要：从技术手段、研究方法和成果应用三个方向综述了土结构研究的三个阶段。在分析当前研究成果的基础上,对土结构多尺度耦合分析缺少直接来自细观-微观结构的几何-力学性质动态参数这一不足进行了讨论。通过对比细观-微观材料几何-力学性质研究领域内其他学科的技术手段与研究方法,结合作者的初步试验成果提出了土结构进一步研究工作的两点新设想,一是通过显微操作手段实现颗粒物质间结构连结强度定量测定;二是在根据土结构几何-力学性质动态参数,以连续介质力学与非连续介质力学相结合的研究手段,提高土结构的多尺度耦合的准确度。Technical means, research methods and results application are reviewed to present the three stages of soil structure research. Based on the recent achievements in soil structure research, a discussion on the efficiency of multiscale coupling of soil structure is carried out, and existing presentation points to the lackage of dynamic ob- servation parameters within meso-microstructure. Comparative analysis of technical means and research methods utilized by other subjects or fields in the meso-microscalematerial geometric and mechanical properties research is conducted, systematic prospects for further research subsequent to the presentation of the latest progress acquisition derived from auctorial experiments and conclusions is put forward. It is suggested that the implemention of quantita- tive determination of interparticle bonding strength through micromanipulation remains positive. The simultaneous solution based on continuum mechanics and discontinuous medium mechanics, along with the acquired experimental data is to improve the accuracy of multiscale coupling of soil structure.

关 键 词：土结构 细观-微观力学 显微操作 多尺度耦合 

分 类 号：TU41[建筑科学—岩土工程] TU43[建筑科学—土工工程]