隧道涌水量预测方法比较及算法选择优化  

Comparison of Tunnel Water Inflow Prediction Methods and Optimization of Algorithm Selection

作　　者：于月娥 张伟锋[2] 张金平 程小勇 YU Yuee;ZHANG Weifeng;ZHANG Jinping;CHENG Xiaoyong(Guangdong Technical College of Water Resources&Electric Engineering,Guangzhou 510635,China;College of Water Conservancy and Civil Engineering,South China Agricultural University,Guangzhou 510642,China;Guangdong Communication Planning&Design Institute Group Co.,Ltd.,Guangzhou 510507,China)

机构地区：[1]广东水利电力职业技术学院,广州510635 [2]华南农业大学水利与土木工程学院,广州510642 [3]广东省交通规划设计研究院集团股份有限公司,广州510507

出　　处：《广东水利水电》2024年第4期25-30,共6页Guangdong Water Resources and Hydropower

摘　　要：隧道涌水是隧道建设及后期运营中最为常见的地质灾害,准确预测涌水量大小将为隧道设计及施工提供关键参数,因此隧道涌水量预测尤为重要。通过采用地下水动力学方法中的解析法(包括裘布依公式、古德曼公式等),结合数值模拟方法,以隧道导水断层为研究重点,对地处莲花山断裂带鸿图特长隧道典型段落(K91+634~K93+512)的最大涌水量和正常涌水量进行了预测。同时,利用已开挖段实测涌水量数值,将多种方法进行对比,分析研究各计算方法的适配性,并优化计算算法。研究表明,裘布依承压含水层公式预测与实际涌水量最为接近,鸿图特长隧道典型段落(K91+634~K93+512)的预测最大涌水量为119000 m 3/d,是极限情况下的涌水量预测,为设计施工开挖提供了可靠地水文地质参数。Tunnel water inflow is the most common geological disaster in tunnel construction and later operation.Accurate prediction of water inflow will provide key parameters for tunnel design and construction,so tunnel water inflow prediction is particularly important.In this paper,through the analytical method in the groundwater dynamics method,including the Dupuy formula,the Goodman formula,etc.,combined with the numerical simulation method,the tunnel water-conducting fault is taken as the research focus,and the typical section of the Hongtu extra-long tunnel located in the Lianhuashan fault zone(K91+634~K93+512)The maximum water inflow and normal water inflow were predicted.At the same time,using the measured water inflow value of the excavated section,the system compares various methods,analyzes and studies the adaptability of each calculation method,and optimizes the calculation algorithm.The research shows that the predicted maximum water inflow in the typical section of Hongtu extra-long tunnel(K91+634~K93+512)is 119000m 3/d,which is the prediction of water inflow under extreme conditions and provides hydrogeological parameters for design,construction and excavation.At the same time,through the comparison of algorithms,it is considered that the prediction of Dupuy confined aquifer formula is the closest to the actual water inflow.

关 键 词：隧道 涌水量预测 地下水动力学法 数值模拟 

分 类 号：U452.1[建筑科学—桥梁与隧道工程]