闫兴田, 顾鑫杰. 2016: 卡杨公路面上湾段线路优化浅析. 工程地质学报, 24(s1): 17-23. DOI: 10.13544/j.cnki.jeg.2016.s1.003
    引用本文: 闫兴田, 顾鑫杰. 2016: 卡杨公路面上湾段线路优化浅析. 工程地质学报, 24(s1): 17-23. DOI: 10.13544/j.cnki.jeg.2016.s1.003
    YAN Xingtian, GU Xinjie. 2016: ANALYSIS ON OPTIMIZING ROUTE OF MIANSHANGWAN SECTION IN KA YANG HIGHWAY. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 17-23. DOI: 10.13544/j.cnki.jeg.2016.s1.003
    Citation: YAN Xingtian, GU Xinjie. 2016: ANALYSIS ON OPTIMIZING ROUTE OF MIANSHANGWAN SECTION IN KA YANG HIGHWAY. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 17-23. DOI: 10.13544/j.cnki.jeg.2016.s1.003

    卡杨公路面上湾段线路优化浅析

    ANALYSIS ON OPTIMIZING ROUTE OF MIANSHANGWAN SECTION IN KA YANG HIGHWAY

    • 摘要: 工程区受地质构造运动影响强烈,属高山峡谷地貌,地质条件复杂。发育面上湾崩坡积体,原设计方案采用明线通过,受特大暴雨、开挖等影响,地质条件发生变化;通过定性、定量分析得出在暴雨、地震工况下不满足安全要求。为规避其对公路的不良地质影响,改线采用隧道洞内小角度交岔口设计,将大断面交岔口段分为护壁区、减跨区、扩挖区,并分别进行开挖支护参数设计,结构简单经济易施工,并得以成功实施,希望本文为今后类似工程的处理提供一些经验和参照意义。

       

      Abstract: The project area is a high mountain valley topography that strongly influenced by geological tectonic movements with complex geological conditions。the original design is open-wire, According to the qualitative and quantitative analysis, it doesn't meet safety requirements when the geological conditions changed because of the heavy rain and excavation。in order to avoid its adverse effects, a small angle cross section tunnel structure is used in this project, which divide the large cross section into three segments: Wall area、reducing cross area and enlarging and excavation area, Each area has a special excavation and support design parameters, and this system has been deployed successfully, I hope that this paper will provide some experience and reference significance for similar projects in the future.

       

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