无实测水文资料下某高速公路隧道设计洪水计算与分析  

Calculation and Analysis of Design Flood for an Expressway Tunnel Without Measured Hydrological Data

作　　者：王宁[1] 王艳 WANG Ning;WANG Yan(Qingyuan Branch of Guangdong Hydrology Bureau,Qingyuan 511500,Guangdong,China)

机构地区：[1]广东省水文局清远水文分局,广东清远511500

出　　处：《工程技术研究》2024年第19期8-10,共3页Engineering and Technological Research

摘　　要：文章以某高速公路隧道工程为例,分别采用广东省综合单位线法、广东省推理公式法及广东省洪峰流量经验公式法进行该隧道进口端的设计洪水计算。根据隧道进口端洼地的水位-泄量、水位-库容关系进行调洪演算,得出该隧道在遭遇100年一遇设计洪水下的最高水位,以期为公路安全运行提供依据。Taking an expressway tunnel project as an example,this paper calculates the design flood at the entrance of the tunnel by using the synthetic unit hydrograph method of Guangdong Province,the rational formula method of Guangdong Province and the peak discharge empirical formula method of Guangdong Province.According to the relationship of water leveldischarge capacity and water level-reservoir capacity of the depression at the entrance of the tunnel,the flood regulation calculation is carried out,and the highest water level of the tunnel under once-in-a-century design flood is obtained,so as to provide the basis for the safe operation of the highway.

关 键 词：高速公路 隧道工程 设计洪水 调洪演算 实测水文资料 洪水频率 

分 类 号：P333.2[天文地球—水文科学]