摘要
西南某山区高速公路越岭岩溶隧道所处区域地质环境条件复杂,全段不仅存在通过岩溶进行地下水近、远程补给而发生涌水突泥的风险,而且勘察发现进口段存在岩溶管道与临近龙湖存在水力联系,存在湖水倒灌的风险。因此,本文以隧道近场区地质建造和构造改造格架为分析物质基础,以地质作用过程机制为分析方法,通过调查、物探及钻探等手段基本查明隧址区环境地质条件,在此基础上建立水文地质原型,对地下水、地表水的补径排关系和渗流场特征,及岩溶空间展布特征展开分析研究,定性到半定量地进行了隧道涌水危险性预测评估,并以评价成果为依据对原隧道平纵布置进行了调整,以进一步降低建设和运营期间的涌水突泥危险性。
Certain mountain area highway the mountains southwest regional geological environment of karst tunnel condition is complex, entire section exists not only through the karst groundwater near, remote supplies and the risk of outburst water mud, but also because of soluble and nearby longhu hydraulic pipe imported segment risk of contact with the water flow back- ward. Near-zone therefore, based on the tunnel geological formation and structural framework for the analysis of material base, based on geological process mechanism analysis method, through survey, geophysical exploration and drilling, basic examine the environmental geological conditions, based on the hydrological geological prototype, the relationship between groundwater and surface water runoff, and the spatial distribution characteristics of karst research, analysis of the quantitative to qualitative to half tunnel water gushing prediction risk assessment, and based on the evaluation results on the original tunnel longitudinal adjusted, more reduced the construction and operation period of water gushing mud risk.
出处
《地质灾害与环境保护》
2017年第2期60-69,共10页
Journal of Geological Hazards and Environment Preservation
关键词
隧道
岩溶
涌水
危害
Tunnel
Karst
water-gushing
Disaster
