半地下厂房岩溶水涌水量预测及环境影响分析  

Prediction of KarstWater Inflow and Environmental Impact Analysis for Semi-Underground Powerhouse

作　　者：孙翊博 李昂 温振磊 谭忠元 SUN Yibo;LI Ang;WEN Zhenlei;TAN Zhongyuan(China Water Resources Beifang Investigation,Design and Research Co.Ltd.,Tianjin 300222;China Gezhouba Group Three Gorges Construction Engineering Co.,Ltd.,Yichang,Hubei 443000)

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300222 [2]中国葛洲坝集团三峡建设工程有限公司,湖北宜昌443000

出　　处：《水利水电工程设计》2025年第2期49-53,共5页Design of Water Resources & Hydroelectric Engineering

基　　金：水利部重大科技项目(SKS-2022147)。

摘　　要：本研究旨在预测岩溶发育区某半地下厂房的涌水量,并评估其对周围环境的潜在影响。结合压水试验和抽水试验,提出研究区渗透系数等值线图,采用Midas软件建立地下水流动模型,对岩溶水的涌水量和施工前后附近水井抽水量进行模拟。模拟结果显示,基坑涌水量在低水位期为643 L/s,在高水位期为980 L/s。涌水量随着地下水位抬升平均每天提高7.02 L/s。基坑开挖强排涌水时,附近水井产率分别降低29.79%、54.94%。研究表明,通过合理的模型构建和参数优化,可以有效预测岩溶水涌水量、评估环境风险,以确保工程的安全运行。This study aims to predict the inflow of karst water into a semi-underground powerhouse located in a karstdeveloped area and to assess its potential impact on the surrounding environment.By combining pressure tests and pumping tests,a contour map of the permeability coefficients for the study area is developed.A groundwater flow model is established using Midas software to simulate karst water inflow and the pumping rates of nearby wells before and after construction.The simulation results indicate that the inflow rate into the foundation pit is 643 L/s during low groundwater level periods and 980 L/s during high groundwater level periods.Additionally,the inflowrate increases by an average of 7.02 L/s per day as the groundwater level rises.During intensive dewatering of the foundation pit,the pumping rates of nearby wells decrease by 29.79%and 54.94%,respectively.The study demonstrates that through proper model construction and parameter optimization,it is possible to effectively predict karst water inflow and assess environmental risks,thereby ensuring the safe operation of the project.

关 键 词：半地下厂房 基坑 岩溶水 涌水量预测 地下水流动模型 环境影响评估 

分 类 号：TV223.4[水利工程—水工结构工程]