文档介绍：中文摘要随着我国基础建设的飞速发展,高等级道路的建设需求也不断地扩大。但由于道路地质形成的特殊性,沿线路基下经常存在深厚的软土层,在该软土地基上修建道路时, 若对地基处理不当,有可能因地基沉降或差异沉降过大而影响道路的正常使用功能。软土地基的处理质量直接影响到路基的基础承载力,也是保证道路建成后安全、高效运营的关键。所以选择合理的软基处理方案及方法快速实施,从而取得预期的经济和社会效益,就具有重大的实际意义。本文首先从软土的工程特性出发,分析了软土地基的特点,深入地研究软土地基的固结、流变特性以及路基沉降的一般规律。然后探讨了国内外常见软基处理技术的研究和应用现状以及其设计理论、实施工艺、适用条件等。天津市大港区北围堤公路沿线原为鱼塘,地质表层多为粘土、淤泥质粘土,运用软土地基的处理方法,对该道路的处理方法及施工工艺进行研究。该工程进行软土地基处理后,地基的地质条件均能满足工程的要求,通过实践证明该软基处理是十分成功的。最后通过该工程实践,我们得到对软土地基的水平、竖向变形进行监控能保证软土路基施工的质量和预防重大事故的发生。关键词:地基处理、软土、软土地基、软土地基处理、沉降分析 ABSTRACT Ingeotechnical engineering,it isnecessary tObuildmore high-grade because ofthespecialty ofcoastalgeology,there oftenexiststhedeep softsoillayer under theroadbed along function and economic effectofroad construction invest are always discounted by essful softskim provident ,the quality ofdoing with thesoft soildirectly affectsthebearing ability ofthebed ofroad,and itisthekey toguarantee theroad running safeland efficiently when with respect tothe road construction under the specified geological conditions,the rational choice of the soft improvement technology andcorresponding techniques isveryimportant. Firstly,the characteristicofsoftsoil was mended,and the consolidation property and theological property ofthe coastalsoftsoil,generalregulation ofsettlement ofwhich was studied ,this paper hassystematically summarized and introduced thestate—of-art;designtheory ofthepresent soft soilimprovement technology,especially the application premises and implemental technological road inTianjin Dagang area,for theoriginal earth oftheproject were fishpond,the surface of thegeology mostly isslime, thetheory,we introduce indetailtheunsatisfactory resultand their construction geological condition after disposal pletely meet the requirement methods offoundation treatment inroad are eminently ,we suggest we should observe thehorizontal andvertic