土石混合体物理指标及强度特性研究进展  

Research Progress on Physical Index and Strength Characteristics of Bimsoils

作　　者：钟祖良[1,2] 涂义亮[1,2] 何晓勇 冯俭华 王占鲁 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]重庆大学山地城镇建设与新技术教育部重点实验室(重庆大学),重庆400045 [3]中铁重庆地铁建设指挥部,重庆401120 [4]中交路桥建设有限公司,重庆400202

出　　处：《地下空间与工程学报》2016年第4期1135-1144,共10页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金(41372356;51108485);高等学校博士学科点专项科研基金(20110191120033)

摘　　要：为了将土石混合体从传统土的分类体系中分离出来和建立相应物理指标体系和强度特性研究方法,基于文献调研,通过土石强度比、土石阈值和含石量等几个关键物理特性指标的定义将土石混合体划分为一类新的岩土介质体系;然后从地质历史和地质构造等方面将土石混合体的成因划分为重力堆积型、水流堆积型、冰川堆积型、风化残积型、构造作用型、人工堆积型及混合堆积型七类;并采用文献搜集和工程调研的方法,分析了土石混合体的地质灾害及面临的工程问题;再次,总结了土石混合体强度特性的影响因素、影响规律及国内外采用的研究方法;最后,对土石混合体研究中存在的困难与挑战、未来的研究方向和新的思路进行了探讨。To separate the bimsoils from the conventional soil classification system and establish the corresponding index system and research methods for physical strength characteristics,this paper classified bimsoils as a newrock and soil medium system through the definition of rock and soil strength ratio,rock threshold and rock content based on literature research. The bimsoils is divided into seven categories： gravity accumulation,water flow accumulation,glacial accumulation,weathering residual,tectonic action,artificial accumulation and mixed accumulation types from the aspects of geological history and geological structure. Then,the geological disasters and engineering problems of bimsoils are analyzed by collecting relative literature and engineering data. Finally,the influence factors and its changing law of strength characteristics of bimsoils are summarized,as well as the research methods used at home and abroad. In addition,the difficulties and challenges,future research directions and new ideas of the research on bimsoils are discussed.

关 键 词：土石混合体 物理指标 强度特性 研究进展 

分 类 号：TU92[建筑科学—建筑设计及理论]