黄土的初始结构性参数研究  

Loess Initial Structural Index and Its Research

作　　者：秦鹏成 邵生俊[1,2] 褚峰 安中秋[1,2] 

机构地区：[1]西安理工大学岩土工程研究所,西安710048 [2]陕西省黄土力学与工程重点实验室,西安710048

出　　处：《太原理工大学学报》2015年第6期707-712,共6页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目:黄土的结构性力学特性及其变形与渐进破坏分析方法研究(41272320);陕西省黄土力学与工程重点实验室重点科研计划项目(2010JS084)

摘　　要：以释放综合结构势的思想为基础,通过无侧限抗压强度试验,以原状土的无侧限抗压强度与其重塑饱和土的无侧限抗压强度的比值,定义了一个反映土初始结构性的参数。研究表明,该初始结构性参数能够反映干密度、含水量、液塑性、塑性指数、稠度即液性指数对黄土初始结构性的影响,表现出很好的灵敏性、稳定性及合理性。Soil structural essence includes physical property indexes,Quantitative structural research deals with the study of the structural parameters of soil deformation processes under load,and the study of soil initial structural parameters.In this paper,on the basis of the release of comprehensive structure potential,the ratio of unconfined compressive strength of the undisturbed soil to the unconfined compressive strength of remolded saturated soil was obtained by unconfined compressive strength test,and used to define soil initial an index reflecting structure.Studies have shown that,the initial structural parameter can reflect the influence of dry density,water content,liquid plastic,plastic index,consistency(liquidity index)on the initial structure of loess,showing good sensitivity,stability and rationality.

关 键 词：综合结构势 重塑饱和土 无侧限抗压强度 初始结构性 

分 类 号：TU444[建筑科学—岩土工程]