李鹏, 焦振华, 焦萱. 2016: 关中地区引水线路中的黄土湿陷性评价问题探讨以引汉济渭二期工程北干线为例. 工程地质学报, 24(s1): 547-551. DOI: 10.13544/j.cnki.jeg.2016.s1.079
    引用本文: 李鹏, 焦振华, 焦萱. 2016: 关中地区引水线路中的黄土湿陷性评价问题探讨以引汉济渭二期工程北干线为例. 工程地质学报, 24(s1): 547-551. DOI: 10.13544/j.cnki.jeg.2016.s1.079
    LI Peng, JIAO Zhenhua, JIAO Xuan. 2016: THE DISCUSSION OF EVALUATION ON COLLAPSIBILITY OF LOESS IN GUANZHONG AREA ON THE DIVERSION PIPELINE. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 547-551. DOI: 10.13544/j.cnki.jeg.2016.s1.079
    Citation: LI Peng, JIAO Zhenhua, JIAO Xuan. 2016: THE DISCUSSION OF EVALUATION ON COLLAPSIBILITY OF LOESS IN GUANZHONG AREA ON THE DIVERSION PIPELINE. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 547-551. DOI: 10.13544/j.cnki.jeg.2016.s1.079

    关中地区引水线路中的黄土湿陷性评价问题探讨以引汉济渭二期工程北干线为例

    THE DISCUSSION OF EVALUATION ON COLLAPSIBILITY OF LOESS IN GUANZHONG AREA ON THE DIVERSION PIPELINE

    • 摘要: 通过对引汉济渭二期工程北线不同地貌单元地基土的湿陷性进行评价,结合现行规范进行讨论发现:由于引水线路工程开挖减载作用使得不同地貌单元湿陷性均较室内试验计算有所降低;结合现有工程实践及研究成果,发现不同地貌单元地下水变化对引水线路湿陷性评价影响程度不同;建议引水工程埋管及箱涵建筑物的地基处理可参考现行规范埋地设置的室外水池进行,同时建议规范修订时应考虑关中地区不同地貌单元修正系数的差异,对荷载减小类工程湿陷参数的复核进行说明。

       

      Abstract: Combine with the analysis on collapsibility of loess in different geomorphic unit and the discussion on the current specification we fount out that: Due to the lightening of the diversion pipeline, the value collapse settlement was little than which calculated with the laboratory test data; the incidence of groundwater variation on the collapsibility evaluation of different geomorphic unit was variant; we suggest that the foundation treatment methods of the buried set outdoor pool could be referenced on the buried pipe and box culvert, the difference of the correction factor in different geomorphic unit should be taken into account, and should review the value of the collapsibility in those project which load would be decreases.

       

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