浅谈轻型井点降水联合强夯法加固吹填土地基研究

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1、北京交通大学硕士学位论文轻型井点降水联合强夯法加固吹填土地基研究姓名：席连海申请学位级别：硕士专业：岩土工程指导教师：白冰20080501中文摘要轻型井点降水联合强夯法加固地基技术，综合了轻型井点降水与强夯两种加固技术的特点。它是将强夯法靠动力压密和井点降水通过降低地下水位馒褥±体得以固结的加固机理进行有效的结合，综合了两种加固技术的优点，大大地提高了加固效率。目前，对该联合技术的研究和应用还处在探索阶段，缺乏系统和全面的研究。本文以东营港大唐电厂酶吹填土地基加固为工程背景，深入探讨强夯法加固软土地基的设计原则及施工技术和轻型井点降水法的设计计算方法及在工程的实施技术；通过对轻型井点降水联合

2、强夯法加固地基技术在现场试验的监测数据分析，研究了加固嚣艨及加固过程中水位、超静孑毛隙永压力及地表沉降和分层沉降的变化规律，验证了联合加固技术的优越性，并通过对上述规律的总结为以后施工提供指导；通过室内试验，比较了用轻型井点降水联合强夯法加固技术处理前后土体物理力学指标的变化，验证了该加固技术的可行性和有效性；针对强夯法的夯击能、夯击次数、土体所处的应力状态对强夯效果的影响，震动三轴试验仪对强夯进行了室内试验模拟，并据此对强夯过程的施工参数进行优化。关键词：强夯，轻型井点降水，吹填土，地基加固分类号。ABSTRACTThesubgradereinforcementtechnologyofli

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