非饱和网纹红土土—水特征曲线的分析

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1、万方数据moisturecontentisthefastestatthebeginninginthefirstday；thegrowthratewillbesignificantlyreducedafteruntilthecontentisbasicallystable．Theresultsofthisexperimentshowedthat4dcanbeusedasanequilibriumtimeintheafterexperiments，thisexperimentprovidesatheoretical

2、basisfortheexperimentalprogram．TheMoisturecontentofupperfilterpaperisalwayshigherthanthelowerfilterpaper．(3)Afterfinishingtheexperimentofcalibratingfilterpapercurve，measuredthetexturedunsaturatedclayhumidificationcurveanddehumidificationcurve．Calculatedfromt

3、hemathematicalmodelofsoilwatercharacteristiccurve．Theresultsshowedthat：unsaturatedtexturedclayhumidificationcurveanddehumidificationcurvebasicallycanbedividedintothreesections．Inthehighsuctionforceregionandlowsuctionforceregion，therateofsuctionchangingisquic

4、kly,andrelativelythemiddleregionisflat．Whenthecontentoftheunsaturatedsoilisidentified．thedesorptionprocesscurveisalwayshigherthanthecorrespondingtotalsuctionhumidificationprocesscurve．WhilehisphenomenonreflectedOnSWCC．dehumidifyingcurveisalwayshigherthantheh

5、umidifyingcurve．(4)Bystudyandcomparetheunsaturatedtexturedredclaydesorptionprocesscurvewithhumidificationprocesscurve，determinetheparametervaluesofsoi】watercharacteristiccurvemodel．Keywords：unsaturated；reticulateredclay；totalsuction；residualvolumetricwaterco

6、ntent；air—entrysuctionClassification-p642．11+6万方数据目录1绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．1网纹红土的形成和工程地质特性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．1．1网纹红土的形成和分布⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1．2网纹红土的工程地质特性和物理特性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．21．2基质吸力的基本概念和研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯⋯．．31．2．1基质吸力的产生⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31。2．2基质吸力对土体强度的影响⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．23几种基质吸力的测量方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯61．2．4土一水特征曲线理论的发展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．161．3本文研究内容和主要创新点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．171．4本文研究的技术路径⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯172滤纸技术

8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯182．1滤纸技术简介⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l82．2滤纸技术的标定与试验步骤⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯192．3滤纸技术的精度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯202．4本章小结⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯213