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《《南水北调与水利科技》:南水北调东线山东境内裂隙黏土研究(欧钊元 王金建 张玉群 蔡家宏 梁礻韦)(摘要)》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、《南水北调与水利科技》:南水北调东线山东境内裂隙黏土研究(欧钊元王金建张玉群蔡家宏梁礻韦)(摘要) 摘要:首次对在南水北调山东境内黄泛冲积平原区分布的一类高液限黏土进行了系统性研究,定名其为“裂隙黏土”,并给其一准确、科学的定义。着重从裂隙黏土沉积环境和微地貌、矿物成分和化学成分、工程地质特性、各指标间的相关性、渗透变形型式、勘察方法、工程处理措施、防渗技术等方面对裂隙黏土展开了系统性研究。研究发现其具有较低的干密度、高的压缩性、特殊的分散性、弱-中等潜势的膨胀性和中等的透水性、弱的抗渗稳定性、低的抗
2、剪强度等工程地质特性,具有较高的理论意义和实践意义。论文首次对裂隙黏粘土沉积环境分为4个区,纠正黄泛堆积层不过“串湖”的观点;提出其物源不仅为黄土,更来源于古土壤和三趾马红土;提出了裂隙黏土渗透变形型式是“冲蚀管涌型”。
关键词:南水北调东线山东段;裂隙黏土;研究;摘要
中图分类号:TV68;TU44文献标识码:B文章编号:1672-168301-0085-07
FissuredClayinShandongSectionofEasternRouteoftheSouth-to-NorthWat
3、erDiversion
OUZhao-yuan1,WANGJin-jian2,ZHANGYu-qun2,CAIJia-hong1,LIANGYi2
(1.ShandongTrunkCO.LtdintheEasternRouteoftheSouth-to-NorthWaterDiversion,Jinan250013,China;2.ShandongConstructionandManagementBureauoftheSouth-to-NorthWaterDiversionProject,Jin
4、an250013,China)
Abstract:ThesystematicresearchwasconductedonhighliquidlimitclayoftheYellowRiveralluvialplainwithinShandongSegmentintheEasternLineoftheSouth-to-NorthWaterDiversionforthefirsttime.Wegaveitanaccuratescientificdefinitionandnamedit"thefissur
5、edclay".Theresearchdiscoveredithasalowerdrydensity,thehighcompression,thespecialdispersivity,theweak~mediumlatentexpansibilityandthemediumwaterpermeability,weakanti-seepagestability,lowshearingstrength,whichhasthehighertheoryandpracticesignificance,Forth
6、efirsttimethepaperdividesthefissuredclayenvironmentofdepositionintofouraresas,correctsviewpointoftheYellowRiveralluvialformationonlydistributinginthewestof"thestringlake";proposesitssourcenotonlyisfromtheloess,butalsothepaleosolandthetertiaryredclay;prop
7、osedthefissuredclayseepagedistortionpatternis"anerosionpiping".
Keywords:ShandongSectionofEasternRouteoftheSouth-to-NorthWaterDiversion;thefissuredclay;research;summary
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