基于贝塔朗菲的黄土结构性参数理论体系研究  

Structural parameter system of loess based on Bertalanffy

作　　者：程小勇[1] 项伟[1] 刘建平[1,2] 于月娥[1] 关国杰[1] 

机构地区：[1]中国地质大学(武汉)工程学院,湖北武汉430074 [2]中铁大桥勘测设计院有限公司,湖北武汉430050

出　　处：《岩土工程学报》2008年第S1期252-256,共5页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金项目(40672188)

摘　　要：通过对河南省燕山水库溢洪道两侧边坡失稳分析,认为含水率增高是失稳首要原因。数值模拟表明沟渠坡比偏大是失稳次要原因。室内试验表明击实可增加溢洪道边坡稳定性。该工程位于第四纪地表Q_2黄土层,具有典型性。"内因是事物发展的根据,外因是事物发展的条件",与黄土地质灾害研究密切相关的是黄土结构性参数理论。目前,黄土结构性参数理论从不同方面研究黄土特性,致力于定量化研究黄土物理力学性质与地质工程性质潜在逻辑。首次提出贝塔朗菲一般系统论方法来整合黄土结构性研究成果,概括前人从含水率、干密度、孔隙比、微观结构等方面对黄土结构性参数进行的系统研究成果,首次将系统论思想融入到黄土结构性的系统研究中。工程实例证明:基本上是适宜的,具有可行性。Based on the analysis of the slope instability occurred on both sides of the spillway of Yanshan Reservoir in Henan Province,the increase of water content was considered as the primary reason.According to the numerical simulation,the increasing slope ratio was the secondary reason.The laboratory experiment indicated that the compaction could improve the stability of slope.This project located in the earth's surface of the loess stratigraphy of Quaternary Q_2 was typical.'Internal factors are the basis and external factors are conditions for the development of things'.The researches on geological hazards occurred in loess district closely related to the structural parameter system of loess.From different aspects,the structural parameter system of loess focused on the potential logical relationship between physical and mechanical property of loess and the geological engineering characteristics.It's the first time to integrate research results of structural property of loess with the general system method of Bertalanffy,to summarize previous research conclusions in water content,density,porosity ratio and microstructure etc.,and to take the systemic theory in the researches on structural property of loess.It is proved to be feasible by the engineering instances.

关 键 词：黄土 含水率 结构性参数 贝塔朗菲 

分 类 号：TV221.2[水利工程—水工结构工程]