基于多元线性回归分析方法的临水基坑防渗降水措施研究  

Analysis of the Seepage Prevention and Water Level Lowering Measures for a Waterfront Foundation Pit based on Multiple Linear Regression Method

作　　者：付业伟 张文侃 徐世濠 苏凯[3,4,5] FU Yewei;ZHANG Wenkan;XU Shihao;SU Kai(Hunan Harbor Engineering Co.,Ltd.,Changsha 410004,China;Hunan Provincial Water Transportation Construction&Investment Group Co.,Ltd.,Changsha 410004,China;State Key Laboratory of Water Resources Engineering and Management,Wuhan 430072,China;Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering,Ministry of Education,Wuhan University,Wuhan 430072,China;Hubei Key Laboratory of Water System Science for Sponge City Construction(Wuhan University),Wuhan 430072,China)

机构地区：[1]湖南省航务工程有限公司,湖南长沙410004 [2]湖南省水运建设投资集团有限公司,湖南长沙410004 [3]武汉大学水资源工程与调度全国重点实验室,湖北武汉430072 [4]武汉大学水工岩石力学教育部重点实验室,湖北武汉430072 [5]海绵城市建设水系统科学湖北省重点实验室(武汉大学),湖北武汉430072

出　　处：《水电与新能源》2023年第8期13-17,共5页Hydropower and New Energy

摘　　要：为保证临水强透水地层基坑施工的安全,多采用帷幕和管井联合防渗降水措施。利用ABAQUS有限元计算软件,针对某临水基坑,通过采用多元线性回归方法,建立帷幕和管井的防渗降水效果的数学计算模型,对帷幕和管井作用下的基坑渗流特征及帷幕管井措施设计参数对其防渗降水效果的影响进行研究,建立帷幕和管井的防渗降水评价参数的预测模型,实现对其防渗降水效果的快速评价。工程实际验证表明,计算模型对渗流量的预测与实际十分接近,对边坡水位的预测效果稍差,整体上满足工程设计要求。To ensure the construction safety of waterfront foundation pits in strong permeable soils,combined seepage prevention and water level lowering measures with grouting curtains and tube wells are usually adopted.With the ABAQUS finite element calculation software,a mathematical model of a waterfront foundation pit is developed with the multiple linear regression method for the seepage prevention and water level lowering effect of the curtains and tube wells.The seepage characteristics of the foundation pit with curtains and tube wells,and the influence of design parameters of the curtains and tube wells on their seepage control effects are studied.Prediction models of the seepage prevention and water level lowering effects of the curtains and tube wells are established,which realize the rapid assessment of their seepage control effects.The engineering verification results show that the prediction of seepage flow by the calculation model is close to the actual values,while the prediction of slope water level is slightly different,which meets the requirements of the engineering design basically.

关 键 词：临水基坑 防渗降水措施 多元线性回归方法 帷幕防渗 管井降水 

分 类 号：TU471.5[建筑科学—结构工程]