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本文以雅泸高速公路经过的拖乌山湿地及下穿隧道为研究对象,通过现场压水试验取得水文地质参数,对下穿隧道涌水量进行预测计算,结合拖乌山湿地水文监测,对湿地与隧道的水力联系进行研究分析,以明确隧道施工对湿地的影响程度。计算结果表明,隧道涌水量相比湿地总水量较小,对湿地水文特征影响不大。湿地水文监测表明,隧道施工过程对湿地水文特征无明显影响,工程技术措施对湿地保护发挥了积极作用。
In this paper, draguoshan wetland and tunnel underpass through Ya-Lu Expressway are taken as research objects, hydrogeological parameters are obtained through on-site water pressure test and the water inflow of the underpass tunnel is predicted and calculated. Combined with the hydrological monitoring of the Tuowu Mountain wetland, And the hydraulic connection with the tunnel to conduct research and analysis to clarify the impact of tunnel construction on wetlands. The calculation results show that the water inflow in the tunnel is smaller than that in the wetland and has little effect on the hydrological characteristics of the wetland. Hydrological monitoring of wetlands shows that the tunnel construction process has no obvious effect on the hydrological characteristics of the wetlands, and engineering and technical measures have played a positive role in wetland protection.