《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）

发布时间：2022-02-22 15:12:39 浏览数：次

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：1672-1683（2008）01-0085-07

Fissured Clay in Shandong Section of Eastern Route of the South-to-North Water Diversion

OU Zhao-yuan1,WANG Jin-jian2,ZHANG Yu-qun2,CAI Jia-hong1,LIANG Yi2

(1.Shandong Trunk CO. Ltd in the Eastern Route of the South-to-North Water Diversion,Jinan 250013,China;2.Shandong Construction and Management Bureau of the South-to-North Water Diversion Project,Jinan 250013,China)

Abstract:The systematic research was conducted on high liquid limit clay of the Yellow River alluvial plain within Shandong Segment in the Eastern Line of the South-to-North Water Diversion for the first time.We gave it an accurate scientific definition and named it "the fissured clay".The research discovered it has a lower dry density,the high compression,the special dispersivity,the weak~medium latent expansibility and the medium water permeability,weak anti-seepage stability,low shearing strength,which has the higher theory and practice significance,For the first time the paper divides the fissured clay environment of deposition into four aresas,corrects viewpoint of the Yellow River alluvial formation only distributing in the west of "the string lake";proposes its source not only is from the loess,but also the paleosol and the tertiary red clay;proposed the fissured clay seepage distortion pattern is "an erosion piping".

Key words:Shandong Section of Eastern Route of the South-to-North Water Diversion;the fissured clay;research;summary

参考文献：

[1]马国彦，王喜彦，李宏勋.黄河下游河道工程地质及淤积物物源分析[M].郑州：黄河水利出版社，1997，135-158.

[2]陈孝燕，王国栋，臧有功.山东省第四系[R].济南：山东省地矿局第二水文地质工程地质大队，1988，21-35.

[3]家衢.山东第四系[J].山东地质，1987，3（2）：84-86.

[4]炎兴.山东省环境地质图集[M].济南：山东省地图出版社，1996，8-19.

[5]学潮，向宏发.聊城-兰考断裂综合研究及黄河下游河道稳定性分析[M].郑州：黄河水利出版社，2001，17-32.

[6]乔平定，李增钧.黄土地区工程地质[M].北京：水利电力出版社，1990，42-114.

[7]王观平，张来文，仰中.分散性黏土与水利工程[M].北京：中国水利水电出版社，1999，7-95.

作者简介：欧钊元（1966-）男，硕士，工程技术应用研究员，主要从事岩土工程研究。

来源：《南水北调与水利科技》2008年第1期

相关热词搜索： 南水北调 裂隙黏土东线山东