王汉勋, 张彬, 刘建飞, 吴兵. 2016: 淤泥质地基海塘与水闸不均匀沉降控制措施优化研究. 工程地质学报, 24(s1): 599-607. DOI: 10.13544/j.cnki.jeg.2016.s1.087
    引用本文: 王汉勋, 张彬, 刘建飞, 吴兵. 2016: 淤泥质地基海塘与水闸不均匀沉降控制措施优化研究. 工程地质学报, 24(s1): 599-607. DOI: 10.13544/j.cnki.jeg.2016.s1.087
    WANG Hanxun, ZHANG Bin, LIU Jianfei, WU Bing. 2016: OPTIMIZATION STUDY FOR CONTROL MEASURES OF UNEVEN SETTLEMENT BETWEEN SLUICE AND SEAWALL ON SILT FOUNDATION. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 599-607. DOI: 10.13544/j.cnki.jeg.2016.s1.087
    Citation: WANG Hanxun, ZHANG Bin, LIU Jianfei, WU Bing. 2016: OPTIMIZATION STUDY FOR CONTROL MEASURES OF UNEVEN SETTLEMENT BETWEEN SLUICE AND SEAWALL ON SILT FOUNDATION. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 599-607. DOI: 10.13544/j.cnki.jeg.2016.s1.087

    淤泥质地基海塘与水闸不均匀沉降控制措施优化研究

    OPTIMIZATION STUDY FOR CONTROL MEASURES OF UNEVEN SETTLEMENT BETWEEN SLUICE AND SEAWALL ON SILT FOUNDATION

    • 摘要: 多年的调查与研究表明,建于淤泥质地基上的水闸与海塘等水工建筑物常常因海塘与水闸连接部位产生过大的差异沉降,影响水闸的正常使用,甚至造成连接部位完全破环。在海塘与水闸之间构建连接段则可以有效减小两者过大的差异沉降,进而减小差异沉降对建筑物的不利影响,但单纯设置连接段对于控制过大差异沉降效果极其有限。论文以浙东沿海某海堤围垦工程为背景,基于有限差分数值模拟软件(FLAC3D),模拟了海塘堆载及流固耦合过程,并考虑通过调节连接段水泥搅拌桩的桩径、桩长及桩间距的连续变化对地基处理措施进行优化,计算出了不同优化措施下水闸与海塘的差异沉降。计算结果表明:基于连接段地基桩桩长的连续变化,再通过调节桩间距的大小可以很大程度控制海塘与水闸之间的差异沉降。

       

      Abstract: After years of investigation and research, hydraulic structures such as sluices and seawall built on silt foundation often produce larger differential settlement between sluice and seawall, which may affect the normal use and even lead to the damage of these structures. Setting the connection section is effective engineering method of controlling differential settlement, but only setting up the connection section always gains limited effect on controlling excessive differential settlement. Based on the finite difference numerical simulation software(FLAC3D),this paper take a seawall in eastern Zhejiang coastal reclamation project as the background and simulate the seawall stacking and the fluid-structure interaction process. Then, by adjusting the connection part of cement mixing pile spacing, the pile length and the pile diameter, we can optimize the foundation treatment measures, and calculate the differential settlement of seawall and water gate under different optimization measure. The analysis results show that with a continuous changing of pile length, adjusting the size of the pile spacing can effectively control the uneven settlement.

       

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