基于Visual MODFLOW边界条件对绵阳市“三江·国际丽城”Ⅱ期基坑降水工程抽水量影响分析  

Influence Factors of Pumping Quantity in Foundation Pit Dewatering Engineering of the Second Phase Project of the Sanjiang International Beautiful City,Mianyang Based on Visual MODFLOW Boundary Condition

作　　者：尹霄 马运超 刘泳伶 YIN Xiao;MA Yun-chao;LIU Yong-ling(Northwest Sichuan Geological Engineering Survey Co.,Ltd.,Mianyang,Sichuan 621000)

机构地区：[1]四川省绵阳川西北地质工程勘察有限责任公司,四川绵阳621000

出　　处：《四川地质学报》2021年第2期264-266,288,共4页Acta Geologica Sichuan

摘　　要：绵阳市砂卵石地区以管井降水为主,基坑降水多采用解析解—大口井简化的方式进行降水设计,对距河流较近区,实际与计算结果偏差较大。本文基于降水工程监测数据资料,建立水文地质模型和地下水流数学模型,采用数值解方式分析边界条件对绵阳市“三江·国际丽城”Ⅱ期基坑降水工程影响,模型拟合度高,对河流边界的基坑降水工程,应考虑边界条件确定单井抽水量。Tube well dewatering is the main method in sand-cobble area,Mianyang.Analytic solution is often used in foundation pit dewatering.Large well simplification is used for dewatering design.But there is a big deviation between the actual value and the calculated result in areas closer to the river.This paper establishes a hydrogeological model and a mathematical model of groundwater flow which are used for simulating influence factors of pumping quantity in foundation pit dewatering engineering of the second phase project of the Sanjiang International Beautiful City,Mianyang based on Visual ModFlow boundary condition.

关 键 词：Visual MODFLOW 数值模拟 抽水量 

分 类 号：TU473[建筑科学—结构工程]