昆明泥炭、泥炭质土的力学特性研究  

Experimental Study and Analysis of Normalized Behavior on the Mechanical Characteristics of Peat & Peaty Soils in Kunming

作　　者：熊恩来 阮永芬[2] 刘文连 

机构地区：[1]中国有色金属工业昆明勘察设计院,昆明650051 [2]昆明理工大学建筑工程学院,昆明650224

出　　处：《土工基础》2006年第1期53-56,共4页Soil Engineering and Foundation

摘　　要：昆明泥炭土作为一种特殊土类,其工程力学性质不同于一般粘土和有机质土,对这层土的力学特性的研究具有重要的理论意义和实用价值。通过对昆明泥炭、泥炭质土进行三轴不固结不排水、固结不排水剪切试验,得到在不同围压下的轴向应力、轴向应变和孔隙压力等参数之间的关系,以及土样的破坏形态。作为一种特殊土,其应力应变关系,孔隙压力与应变关系是否存在归一化性状值得研究。The peat ＆ peaty soil in Kunming is a kind of special soil, its physical and mechanicalproperties are different from usual clay or organic soil. Research on the mechanical characteristics of the stratum is of significance in both theory and in practice. In this paper, the mechanical characteristics of the peat ＆ peaty soil in Kunming were studied using the unconsolidated undrained triaxial shear tests and the consolidated-undrained triaxial shear tests under various confining pressure states. The relationship among axial stress, axial train and pore water pressure of the clay and the peat and peaty soil and the failure shape of soil sample were obtained as a special soil, its normalization is worth of further research.

关 键 词：泥炭 泥炭质土 力学特性 力学实验 应力与应变关系 归一化性状 

分 类 号：TU457[建筑科学—岩土工程]