高渗透性砂卵石层基坑涌水量计算参数研究  

DISCUSSION ON THE SELECTION OF DESIGN PARAMETERS FOR THE CALCULATION OF WATER INFLOW IN FOUNDATION PITS WITH HIGH PERMEABILITY SAND AND GR AVEL LAYERS

作　　者：张秀雨 牛义国 薛猛 ZHANG Xiu-yu;NIU Yi-guo;XUE Meng(Beijing Modern Jinyu Geotechnical Engineering Co.,Ltd.,100161,Beijing,China;Beijing Construction Engineering Group Co.,100055,Beijing,China;Beijing Construction Engineering Bohai Construction Co.,Ltd.,100055,Beijing,China)

机构地区：[1]北京现代金宇岩土工程有限公司,北京100161 [2]北京建工集团有限责任公司,北京100055 [3]北京建工博海建设有限公司,北京100055

出　　处：《建筑技术》2025年第5期631-633,共3页Architecture Technology

摘　　要：研究以北京常青园互联网金融产业园项目为例,分析了在含水量十分丰富的砂卵石层中,降水设计过程中参数选取、管井布置、水泵选用的影响,最终既达到满足结构施工的要求,又减少了对地下水的抽取。选取合适的涌水量计算公式,根据经验选择合适砂卵石层的渗透系数,计算涌水量,初步确定井径、井间距、水泵选配,抽水过程中通过观测水位,测量每天实际排水量,与计算涌水量比较,进而总结类似地区的降水设计参数,通过确定“最合适涌水量”使降水最终满足施工要求,防止过度抽采地下水,达到节约的效果。This study takes the Beijing Changqingyuan Internet Finance Industrial Park project as an example to discuss the parameter selection,pipe well layout,and water pump selection in the precipitation design process in sand and gravel layers with rich water content.This not only meets the requirements of structural construction but also minimizes the extraction of groundwater.Select an appropriate formula for calculating water inflow,based on experience,select the appropriate permeability coefficient of the sand and gravel layer,calculate the water inflow,preliminarily determine the well diameter,well spacing,and select water pumps.During the pumping process,observe the water level,compare the actual daily drainage with the calculated water inflow,and then summarize the precipitation design parameters of similar areas.By determining the“most suitable water inflow”,the precipitation ultimately meets the construction requirements and prevents excessive pumping of groundwater,Achieve economic savings.

关 键 词：涌水量 井径 井间距 

分 类 号：TU74[建筑科学—建筑技术科学]