吉林省东部山区隧道洞室开挖涌水量估算分析

Estimation and analysis of excavation water inflow of east mountainous area tunnel in Jilin Province

隧道洞身在中等风化岩层中,水文地质条件相对比较复杂。隧道施工时需要进行人工降水,以满足施工条件,为此估算隧道洞体涌水量在设计时显得极为重要。本文以凉水隧道工程为例,应用泉水流量汇总法、地下水径流模数法和水平廊道法对隧道涌水量计算并进行对比分析,验证三种方法的合理性和有效性,为设计和施工降水提供一定的参考依据。

Tunnels are emphasis structures of expressway network in eastern mountainous areas of Jilin Province, whose barrels are often located in moderately weathered rock, there has relatively complex hydrogeological condition. The tunnel construction need for artiifcial precipitation to meet the construction conditions. For this reason, estimating tunnel water inlfow in the design is very important. Taking Liangshui tunnel project as an example, we use spring lfow collect method, groundwater runoff modulus method and horizontal corridor method, contrast analyze tunnel water inlfow, and test the rationality and validity of three methods, which provide some guidance for the design and construction of the precipitation.