廖存刚, 刘皓, 孙文超, 闫斌. 2017: 滇中引水工程昆明段岩溶水发育规律及对隧洞工程的影响. 工程地质学报, 25(s1): 7-15. DOI: 10.13544/j.cnki.jeg.2017.s1.002
    引用本文: 廖存刚, 刘皓, 孙文超, 闫斌. 2017: 滇中引水工程昆明段岩溶水发育规律及对隧洞工程的影响. 工程地质学报, 25(s1): 7-15. DOI: 10.13544/j.cnki.jeg.2017.s1.002
    LIAO Cungang, LIU Hao, SUN Wenchao, YAN Bin. 2017: KARSTIC WATER DEVELOPMENT REGULARITY AND ITS INFLUENCE ON TUNNEL ENGINEERING OF DIVERSION PROJECT NEARBY KUNMING. JOURNAL OF ENGINEERING GEOLOGY, 25(s1): 7-15. DOI: 10.13544/j.cnki.jeg.2017.s1.002
    Citation: LIAO Cungang, LIU Hao, SUN Wenchao, YAN Bin. 2017: KARSTIC WATER DEVELOPMENT REGULARITY AND ITS INFLUENCE ON TUNNEL ENGINEERING OF DIVERSION PROJECT NEARBY KUNMING. JOURNAL OF ENGINEERING GEOLOGY, 25(s1): 7-15. DOI: 10.13544/j.cnki.jeg.2017.s1.002

    滇中引水工程昆明段岩溶水发育规律及对隧洞工程的影响

    KARSTIC WATER DEVELOPMENT REGULARITY AND ITS INFLUENCE ON TUNNEL ENGINEERING OF DIVERSION PROJECT NEARBY KUNMING

    • 摘要: 可溶岩区地下岩溶水对隧洞造成很大的威胁,如引起隧洞涌水、突水、突泥等。本文通过地质调查、勘探、抽水试验,分析滇中引水工程昆明段地下岩溶水发育规律及分布特征,为滇中引水工程以及今后地下隧洞工程设计和施工提供依据。调查分析显示,滇中引水工程昆明段岩溶在二叠系、石炭系、泥盆系可溶岩中均有分布,主要呈带状分布于地下水排泄基准面附近及断陷盆地、断裂沟谷内,其次在新构造运动控制的断裂地段及岩性变化造成的不同微水文地质单元交界处;在二叠系灰岩中,地下水分层排泄,石炭系、泥盆系中发育有落水洞,形成地下岩溶通道;在1900~2150m高程段岩溶发育密集,该高程区为岩溶地下水的主要径流区,对隧洞影响最大,存在涌水、突水、突泥、岩溶塌陷、遭遇岩溶空腔的隐患。

       

      Abstract: Karstic water underground have a great threat to tunnel in karst area, such as cause tunnel water gushing, water inrush, mud in rush, etc. Based on the geological investigation, exploration, pumping test, analyzing karstic water development regularity and its distributed characteristics of diversion project nearby Kunming, and providing the basis of design and construction to water diversion project in Yunnan and future underground tunnel project. Investigation and analysis show that karst developed in Permian, Carboniferous, and Devonian, karst distributed banded near a groundwater discharge datum and fault basin, fault valleys, secondly in the fracture location controlled by new tectonic movement and the boundary of different micro hydrogeological unit; in the Permian limestone, groundwater drainage layered, in the Carboniferous and the Devonian that development aven and underground karst channel; in 1900~2150m elevation, karst development intensively, this area is the main runoff area of karstic underground water and have great influence on tunnel, it have potential of water gushing, water inrush, mud in rush, karst collapse and a karst cavity.

       

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