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(中機國際工程設計研究院有限責任公司， 長沙 410007)
［摘要］某二層地下室因抗浮設防水位偏低導致其建成后抗浮措施失效。分析了抗浮措施失效的原因。通過比選多種處理措施，采用排水限壓法控制地下水位。通過在集水坑設置倒U形管，控制地下水排水標高，降低滲流水位差，減少滲流水量和排水水量。最后對排水限壓法的保障措施、監(jiān)測和維護內容給出了建議。
［關鍵詞］既有工程；排水限壓法；抗浮治理；倒U形管；滲流水位差；滲流量；監(jiān)測和維護
中圖分類號：TU318 文獻標識碼：A文章編號：1002-848X(2021)21-0011-04
Study on anti-floating treatment of existing projects with drainage pressure limiting method
GAO Mingyu, TAN Guangyu, FANG Weiming, HE Wen, CHEN Jiancheng, XIE Dan
(China Machinery International Engineering Design & Research Institute Co., Ltd., Changsha 410007， China)
Abstract: The anti-floating measures failed after the completion of a two-story basement due to the low anti-floating waterproof level. The causes of the failure of anti-floating measures were analyzed.By comparing and selecting a variety of treatment measures, the scheme of drainage pressure limiting method was adopted to control the groundwater level. By setting an inverted U-shaped pipe in the catchment pit, the elevation of groundwater drainage was controlled, the difference of seepage water level was reduced, and the amount of seepage and drainage water were reduced. Finally, suggestions were given for the safeguard measures, monitoring and maintenance of the drainage pressure limiting method.
Keywords:existing project； drainage pressure limiting method； anti-floating treatment； inverted U-shaped pipe； difference of seepage water level； amount of seepage water; monitoring and maintenance
作者簡介：高明宇，學士，高級工程師，一級注冊結構工程師，Email：2149240851@qq.com； 通信作者：譚光宇，碩士，教授級高級工程師，Email：371643439@qq.com。
