里下河古潟湖相软土基本工程特性与形成机理的关系
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摘要
淮盐高速公路穿越的里下河地区,广泛分布有高含水量、高压缩性古潟湖相软土,工程性质很差,该层软土的工程性质与里下河古潟湖的形成机理密切相关。本文在对潟湖形成一般模式总结的基础上,结合苏北地区第四纪以来沉积环境及区域地质地貌变化情况,得出里下河古潟湖相软土的形成机理,并对淮沿高速公路盐线典型地段土样工程性质进行分析,根据土的工程性质的垂直变化,判断古潟湖相软土的分布情况,进而寻找古潟湖相软土工程性质与其形成机理之间的关系。
Lixiahe district,where the Huaiyan expressway runs,has broadly distribution of high water-content and high compressive ancient lagoon facies soft soil.The soil has engineering low-grade properties.There is a close relationship between its engineering properties and the development mechanism of Lixiahe lagoon.In this paper,it starts from changes of the sedimentary environment and local geology,points out the development mechanism of Lixiahe lagoon facies soft soil,based on the general development model of lagoon.After these,it analyzes the engineering properties of typical lagoon facies soft soil from Huaiyan expressway,and estimates the distribution of lagoon facies soft soil based on the vertical changes of its engineering properties.Finally,the paper gives the relationship between its engineering properties and growth mechanism.
Lixiahe district,where the Huaiyan expressway runs,has broadly distribution of high water-content and high compressive ancient lagoon facies soft soil.The soil has engineering low-grade properties.There is a close relationship between its engineering properties and the development mechanism of Lixiahe lagoon.In this paper,it starts from changes of the sedimentary environment and local geology,points out the development mechanism of Lixiahe lagoon facies soft soil,based on the general development model of lagoon.After these,it analyzes the engineering properties of typical lagoon facies soft soil from Huaiyan expressway,and estimates the distribution of lagoon facies soft soil based on the vertical changes of its engineering properties.Finally,the paper gives the relationship between its engineering properties and growth mechanism.
引文
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[3]朱玉荣.苏北中部滨海平原成陆机制研究[J].Marine Sci-ence,2000,24(12):33~37.Zhu Yurong.Study on the land form ing m echan ism of the coastalplain in the m idd le of north Jiangsu.Marine Science,2000,24(12):33~37.
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[6]赵希涛,等.江苏阜宁西园全新世风暴沉积与海岸沙丘的发现及其意义[J].中国科学B辑,1992,(9):994~1001.Zhao X itao,et al..The d iscovery and its sign ificance of the Hol-ocene Period storm sed im ent and coastal sandbank in Fun ingX iyuan of Jiang su.Ch ina Science(ed.B),1992,(9):994~1001.
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[8]赵希涛,李波,鲁刚毅,王绍鸿,张景文.苏北全新世风暴沉积与海岸沙丘的发现———兼论砂坝-潟湖体系发育与海平面变化[J].科学通报,1991,36(22):1727~1730.Zhao X itao,L i Bo,Lu Gangyi,W ang Shaohong,Zhang Jingwen.The d iscovery of the Holocene Period storm sed im ent and coastalsandbank in north Jiang Su———d iscussion on the growth of thesand barrier-lagoon system w ith the changes of sea level.Ch ineseJournal of Science,1991,36(22):1727~1730.
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[10]Hoygt J H.Influence of island m igration on barrier island sed i-m entation[J].Geol Soc Am erican Bu ll,1967,(78):77~86.
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[12]李春初.滨面转移与我国沉积性海岸地貌的几个问题[J].海洋通报,1987,6(1):69~73.L i Chunchu.Several prob lem s on shore face sh ifting and sed i-m entary coast geomorphy of our nation.Ch inese Journal ofMarineScience,1987,6(1):69~73.
[13]Gerhard Marsselink and Gu ilherm elessa.Barrier stratigrphy onthe Macrotidal central Queensland coast line[J].Journal ofcoastal research,1995,11(2):25~30.
[14]P itman J.,Peck R..The physical nature of the HongKong seashore[A].Moton B S.The future of the Hong Kong Shore[C].Oxford:Oxford Un iversity Press,1979,15~43.
[15]李从先,陈刚,王平.我国沿岸晚第四纪砂坝-潟湖体系的沉积模式[J].沉积学报,1991,9(4):113~118.L i Congxian,Chen Gang,W ang P ing.The sed im entary model ofthe late Quaternary Period sand barrier-lagoon system along thecoast of our country[J].Ch inese Journal of Sed im entology,1991,9(4):113~118.
[16]姜鹏.里下河古潟湖相软土发育机理及其工程特性研究[D].南京:东南大学硕士学位论文,2006.Jiang Peng.Research on growth m echan ism and its engineeringproperties of the ancient L ixiahe lagoon facies soft soil.M.D.d issertation.Nan jing:SoutheastUn iversity,2006.
[17]R.S.K.巴恩斯著.庄振业,杨德渐,孟伟译.杨德渐校.海岸潟湖[M].北京:海洋出版社,1985.R.S.K.Barnes.Translated by Zhuang Zhenye,Yang D ejian,M engW ei.Coastal lagoon.Beijing:Marine Pub-lish ing Houseof Ch ina,1985.
[18]王希良,彭苏萍,肖建华.地下工程软弱岩体围岩结构的地震探测技术[J].工程地质学报,2005,13(3):429~432.W ang X iliang,Peng Sup ing,X iao Jianhua.D etection of frac-tured zones of underground weak rockmasses using seism ic tech-nology.Journal of Engineering Geology,2005,13(3):429~432.
[2]张东生张君伦张长宽,等.潮流塑造-风暴破坏-潮流恢复———试释黄海海底辐射沙脊群形成演变的动力机制[J].中国科学(D辑),1998,28(5):394~402.Zhang Dongsheng,Zhang Jun lun,Zhang Changkuan,et al..Tid-al current shap ing-Storm rupture-Tidal current restoring-Studyon the dynam ic m echan ism of the evolution of the rad iate ridges onthe bottom of theHuanghai ocean.Ch ina Science(ed.D),1998,28(5):394~402.
[3]朱玉荣.苏北中部滨海平原成陆机制研究[J].Marine Sci-ence,2000,24(12):33~37.Zhu Yurong.Study on the land form ing m echan ism of the coastalplain in the m idd le of north Jiangsu.Marine Science,2000,24(12):33~37.
[4]袁迎如,陈庆.南黄海旧黄河水下三角洲的沉积物和沉积相[J].海洋地质与第四纪地质,1984,4(4):35~43.Yuan Y ingru,Chen Q ing.The sed im ent and sed im entary facies ofthe ancient Huang R iver underwater delta in the Huang-hai o-cean.Sea Geology and the Quaternary Geology,1984,4(4):35~43.
[5]王颖,朱大奎编著.海岸地貌学[M].高教出版社,1994.W ang Y ing,Zhu Daku i.Coastal Geomorphology.Advanced Edu-cation Press of Ch ina,1994.
[6]赵希涛,等.江苏阜宁西园全新世风暴沉积与海岸沙丘的发现及其意义[J].中国科学B辑,1992,(9):994~1001.Zhao X itao,et al..The d iscovery and its sign ificance of the Hol-ocene Period storm sed im ent and coastal sandbank in Fun ingX iyuan of Jiang su.Ch ina Science(ed.B),1992,(9):994~1001.
[7]L i Guangxin,W angP ing.Stratigraphy of the late Quaternary barri-er-lagoon depositional system s along the coast of Ch ina[J].Sed-im entary Geology,1991,72(3):199~200.
[8]赵希涛,李波,鲁刚毅,王绍鸿,张景文.苏北全新世风暴沉积与海岸沙丘的发现———兼论砂坝-潟湖体系发育与海平面变化[J].科学通报,1991,36(22):1727~1730.Zhao X itao,L i Bo,Lu Gangyi,W ang Shaohong,Zhang Jingwen.The d iscovery of the Holocene Period storm sed im ent and coastalsandbank in north Jiang Su———d iscussion on the growth of thesand barrier-lagoon system w ith the changes of sea level.Ch ineseJournal of Science,1991,36(22):1727~1730.
[9]洪毓康主编.土质学与土力学[M].北京:人民交通出版社,2001.Hong Yukang.Foundation of soil science and soil dynam ics.Bei-jing:People′s Transportation Pub lish ing House of Ch ina,2001.
[10]Hoygt J H.Influence of island m igration on barrier island sed i-m entation[J].Geol Soc Am erican Bu ll,1967,(78):77~86.
[11]李从先,蔡金功,陈刚.砂坝-潟湖沉积体系地层分类及其应用[J].同济大学学报,1993,21(1):124~129.L i Congxian,Cai Jingong,Chen Gang.The stratum classificationand its application of sand barrier-lagoon sed im ent-tary sys-tem.Ch inese Journal of Tong Ji Un iversity,1993,21(1):124~129.
[12]李春初.滨面转移与我国沉积性海岸地貌的几个问题[J].海洋通报,1987,6(1):69~73.L i Chunchu.Several prob lem s on shore face sh ifting and sed i-m entary coast geomorphy of our nation.Ch inese Journal ofMarineScience,1987,6(1):69~73.
[13]Gerhard Marsselink and Gu ilherm elessa.Barrier stratigrphy onthe Macrotidal central Queensland coast line[J].Journal ofcoastal research,1995,11(2):25~30.
[14]P itman J.,Peck R..The physical nature of the HongKong seashore[A].Moton B S.The future of the Hong Kong Shore[C].Oxford:Oxford Un iversity Press,1979,15~43.
[15]李从先,陈刚,王平.我国沿岸晚第四纪砂坝-潟湖体系的沉积模式[J].沉积学报,1991,9(4):113~118.L i Congxian,Chen Gang,W ang P ing.The sed im entary model ofthe late Quaternary Period sand barrier-lagoon system along thecoast of our country[J].Ch inese Journal of Sed im entology,1991,9(4):113~118.
[16]姜鹏.里下河古潟湖相软土发育机理及其工程特性研究[D].南京:东南大学硕士学位论文,2006.Jiang Peng.Research on growth m echan ism and its engineeringproperties of the ancient L ixiahe lagoon facies soft soil.M.D.d issertation.Nan jing:SoutheastUn iversity,2006.
[17]R.S.K.巴恩斯著.庄振业,杨德渐,孟伟译.杨德渐校.海岸潟湖[M].北京:海洋出版社,1985.R.S.K.Barnes.Translated by Zhuang Zhenye,Yang D ejian,M engW ei.Coastal lagoon.Beijing:Marine Pub-lish ing Houseof Ch ina,1985.
[18]王希良,彭苏萍,肖建华.地下工程软弱岩体围岩结构的地震探测技术[J].工程地质学报,2005,13(3):429~432.W ang X iliang,Peng Sup ing,X iao Jianhua.D etection of frac-tured zones of underground weak rockmasses using seism ic tech-nology.Journal of Engineering Geology,2005,13(3):429~432.
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