孙凤慧. 2011: 东太湖堤线调整工程黏性吹填土特征. 工程地质学报, 19(4): 483-486.
    引用本文: 孙凤慧. 2011: 东太湖堤线调整工程黏性吹填土特征. 工程地质学报, 19(4): 483-486.
    SUN Fenghui. 2011: RESEARCH ON CHARACTERISTICS OF COHESIVE HYDRAULIC FILLS IN THE ADJUSTMENT ENGINEERING OF LEVEES AROUND EASTERN TAI LAKE. JOURNAL OF ENGINEERING GEOLOGY, 19(4): 483-486.
    Citation: SUN Fenghui. 2011: RESEARCH ON CHARACTERISTICS OF COHESIVE HYDRAULIC FILLS IN THE ADJUSTMENT ENGINEERING OF LEVEES AROUND EASTERN TAI LAKE. JOURNAL OF ENGINEERING GEOLOGY, 19(4): 483-486.

    东太湖堤线调整工程黏性吹填土特征

    RESEARCH ON CHARACTERISTICS OF COHESIVE HYDRAULIC FILLS IN THE ADJUSTMENT ENGINEERING OF LEVEES AROUND EASTERN TAI LAKE

    • 摘要: 东太湖堤线调整大堤由黏性土水力吹填形成,填土中含大量鹅卵状土块。本文通过野外勘察、室内试验等方法初步研究分析黏性吹填土形成机理、内部结构特点、力学特性等。研究结果表明:吹填土体性质不均匀,鹅卵状土块土性较好,而重塑淤泥质黏土土性极差。黏性吹填土的渗透系数很小,固结所需时间长。其室内土工试验参数与现场实际不符,其原因是现行土工试验设备不适合此种极不均匀的吹填土; 原位测试数据可以真实反映吹填土的特性。可行的地基处理方法是排水结合外力堆载或水泥土搅拌桩。

       

      Abstract: The adjusted levee around Eastern Tai Lake is formed of cohesive hydraulic fills,which include lots of pebble-shaped clods.The paper conducts a preliminary research on the formation mechanism,internal structure characteristics and mechanical characteristics through field investigation,laboratory tests,etc.The results show that: the hydraulic fills are of uneven characteristics.The pebble-shaped clods are of good properties while the remoulded silt clay is of bad properties.The hydraulic fills are of small permeability and long consolidation time.The soil test parameters do not conform with sites,the reason of which is that the prevailing soil test equipments are not suitable for the uneven fills.The parameters from in-situ tests can reflect the properties of the fills.The suitable ground treatment measures are water draining associated with heaped load or cement-soil mixing pile.

       

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