上海国土资源
上海國土資源
상해국토자원
SHANGHAI LAND&RESOURCES
2014年
2期
25-27,61
,共4页
地面沉降%深基坑工程%降水设计%止水帷幕%沉降防控
地麵沉降%深基坑工程%降水設計%止水帷幕%沉降防控
지면침강%심기갱공정%강수설계%지수유막%침강방공
land subsidence%deep foundation pit engineering%dewatering design%waterproof curtain%land subsidence control
为更好地控制工程降水引发的地面沉降，根据“按需降水”原则，基于地下水动力学经典理论，分析了减压降水过程中止水帷幕的隔水效应和承压水头分布特征，探讨了通过深基坑减压降水设计优化控制坑外水位降水及地面沉降的可行性，结合工程实例，模拟分析了基坑降水优化效果，讨论了止水帷幕深度与地面沉降量的定量关系。
為更好地控製工程降水引髮的地麵沉降，根據“按需降水”原則，基于地下水動力學經典理論，分析瞭減壓降水過程中止水帷幕的隔水效應和承壓水頭分佈特徵，探討瞭通過深基坑減壓降水設計優化控製坑外水位降水及地麵沉降的可行性，結閤工程實例，模擬分析瞭基坑降水優化效果，討論瞭止水帷幕深度與地麵沉降量的定量關繫。
위경호지공제공정강수인발적지면침강，근거“안수강수”원칙，기우지하수동역학경전이론，분석료감압강수과정중지수유막적격수효응화승압수두분포특정，탐토료통과심기갱감압강수설계우화공제갱외수위강수급지면침강적가행성，결합공정실례，모의분석료기갱강수우화효과，토론료지수유막심도여지면침강량적정량관계。
Land subsidence can be induced by deep-foundation pit dewatering engineering. To better control such subsidence, this study uses classical groundwater dynamics theory to analyze the conifning effect of a waterproof curtain and water head distribution during dewatering, and discusses the feasibility of groundwater head prevention and land subsidence control by optimizing the design of deep-foundation pit dewatering engineering. With respect to dewatering engineering, this paper simulates the dewatering process, analyzes the effects of optimization, and discusses the relationship between the use of waterproof curtains and land subsidence.
