- 摘 要
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(北京市建筑設(shè)計研究院有限公司， 北京 100045)
摘要: 軌道交通對變形很敏感，軌道結(jié)構(gòu)對臨近工程建設(shè)有嚴(yán)格要求，實踐證明采取合理的技術(shù)措施和建設(shè)時序可以有效控制工程建設(shè)對臨近軌道結(jié)構(gòu)變形的影響。 以北京新機場核心區(qū)地下空間為背景，探討了超長結(jié)構(gòu)溫差作用、結(jié)構(gòu)轉(zhuǎn)換設(shè)計、基礎(chǔ)差異變形、軌道噪音影響、抗浮方案選擇等多個工程技術(shù)難題，著重研究和分析了超大型地下空間結(jié)構(gòu)設(shè)計中超長結(jié)構(gòu)溫差作用、沉降變形控制以及基礎(chǔ)協(xié)同分析技術(shù)問題，并歸納總結(jié)了臨近軌道交通結(jié)構(gòu)采取的應(yīng)對措施。 通過軟件分析計算和現(xiàn)場變形數(shù)據(jù)實測，驗證了技術(shù)方案合理性。
關(guān)鍵詞: 地下空間； 臨近軌道； 超長結(jié)構(gòu)； 沉降控制
中圖分類號:TU93. 2 文獻標(biāo)志碼:A 文章編號:1002￣848X(2022)04￣0142￣06
DOI:10. 19701 / j.jzjg.LS202104
Structure design of super￣large underground space adjacent to track
XUE Hongjing， LU Pingzhen， ZHOU Sihong
(Beijing Institute of Architectural Design Co.， Ltd.， Beijing 100045， China)
Abstract: Rail transit is very sensitive to deformation， and the track structure has strict requirements on the construction ofadjacent projects. Practice has proved that adopting reasonable technical measures and construction timing can effectivelycontrol the influence of engineering construction on the deformation of adjacent track structures. Taking the undergroundspace in the core area of Beijing New Airport as the background， the effects of the temperature difference of the super￣longstructure， the design of structural transformation， the differential deformation of the foundation， the influence of the tracknoise， and the choice of anti￣floating schemes were discussed， the effect of the temperature difference of the super￣longstructure in the design of the super￣large underground space，the control of settlement and deformation， and the technicalproblems of the foundation collaborative analysis were emphatically studied and analyzed， and the response measures takenby the adjacent rail transit structure were summarized. The rationality of the technical plan was verified through softwareanalysis and calculation and field deformation data measurement.
Keywords: underground space； adjacent track； supper￣long structure； settlement control
第一作者:薛紅京，博士研究生，正高級工程師，一級注冊結(jié)構(gòu)工程師，碩士生導(dǎo)師，主要從事結(jié)構(gòu)工程設(shè)計與研究，Email:xuehj@ 139.com。
[引用本文] 薛紅京，盧萍珍，周思紅. 臨近軌道超大型地下空間結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu)，2022，52(4):142￣147.XUE Hongjing， LU Pingzhen， ZHOU Sihong. Structure design of super￣large underground space adjacent to track [ J].Building Structure，2022，52(4):142￣147.
