全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

淤泥质潮滩表层沉积物稳定性时空变化的探讨──以长江口南边滩东海农场潮滩为例

, PP. 50-60

Keywords: 淤泥质潮滩,时空变化,抗剪强度,表层沉积物稳定性,曝露

Full-Text   Cite this paper   Add to My Lib

Abstract:

潮滩表层沉积物稳定与否直接影响潮滩的稳定性.根据有效应力理论(EffectiveStressTheory),本文选择沉积物抗剪强度作为其稳定性指标进行研究,并对沉积物其他特性(如含水量、湿容重)进行了同步测定.针对与潮间带滩面的有规律出露和浸没有关的表层沉积物稳定性时空变化,文中提出了包括外动力(波、流)作用与内在稳定性(抗冲刷能力)两方面的潮滩表层沉积物稳定性概念模式,从微观上合理地解释了潮滩发育过程.

References

[1]  van Straaten I.M J U et al.Sedimentation in tidal flats areas.J.of Alberta Society Petroleum Geologists,1961,9(7):203-213,216-226
[2]  Reineck H E.Layered Sediments of tidal flats,beaches,and shelf bottoms of the North Sea.In:Estuaries (H Lauff.ed.),1967,190-206
[3]  Evans G et al.The transportation and deposition of suspended sediment over the intertidal flats of the wash.In:Nearshore Sediment Dynamics and Sedimentation (H Hails et al.eds.),John Wiley&Sons,London,1975,273-305
[4]  任美愕等.江苏王港地区淤泥质潮滩的沉积作用.海洋通报,1984,3(1):40-50
[5]  徐元等.上海淤泥质潮滩潮锋作用及其形成机制的初步探讨.地理研究.1994,13(3):60-68
[6]  Paterson D M et al.Subaerial exposure and changes in the stability of intertidal estuarine sediments.Estuarine,Coastal and Shelf Science,1990.30:541-556
[7]  Skempton A W.Terzagi s Discovery of Effective Stress:from Theory to Practice in Soil Mechanics,John Wiley &.Sons,New York.1960,425
[8]  Dunn I S.Tractive resistance of cohesive channels.J.of Soil Mech.Found.,ASCE,1959,85(3):1-24
[9]  Kamphuis J W et al.Cohesive material erosion by unidirectional current.J.of Hydraul.Engng.,ASCE.1983.109.49-61
[10]  Amos C L et al.Erosion and deposition of fine-grained sediments from the Bay of Fundy.Sedimentology,1985,32,815-832
[11]  Anderson F E et al.Dewatering of an unvegetated muddy tidal flat during exposure—Desiccation or Drainage,Estuaries.1984,7,225-232

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133