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                                                                                                                                                                                              2020年8月27日,中國施工企業管理協會公布了首屆工程建設行業BIM大賽結果名單。本次大賽共收到成果1947項,按照建筑工程(綜合應用大型項目、綜合應用中小型項目、專項應用)、交通工程、水電能源和市政公用類分組,最終評選出一等成果61項、二等成果134項、三等成果455項。

                                                                                                                                                                                              最終,由北京中巖大地科技股份有限公司與北京建工集團有限責任公司、中國建筑第二工程局有限公司聯合申報的“國家會議中心二期基坑工程BIM設計施工綜合應用”成果獲專項應用類二等成果獎。

                                                                                                                                                                                              News

                                                                                                                                                                                              項目概況

                                                                                                                                                                                              國家會議中心二期基坑工程項目位于奧林匹克中心區,國會一期和亞投行之間。國家會議中心二期工程是首都國際交往中心建設的重點項目,總建筑面積77萬平方米,在北京冬奧會期間作為國際廣播中心和主新聞中心使用,屬于國家重點工程。本項目的基坑支護工程由北京中巖大地設計施工,其中主體工程基坑占地面積約91140㎡,開挖深度為14.3m。附屬工程基坑占地面積約25000㎡,開挖深度為19~20m。

                                                                                                                                                                                              作為冬奧會的項目,工期非常緊張,不允許有滯后的機會;加之項目周邊環境復雜,北側為在施的亞投行項目,基坑南、西、東側道路下亦有2008年奧運期間使用的地下環形隧道,南側同時有大屯路下沉道路、正在運行的地鐵15號線等。項目的重要性、工期的緊張性、場地的復雜性,以及考慮與后期工程的銜接性,并有利于參建各方數據的共享,本工程在現場實施的同時,納入了中巖大地的數字化工地---智慧巖土的實踐中。

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                                                                                                                                                                                              設計應用

                                                                                                                                                                                              我司利用BIM建模軟件及二次開發插件,對基坑支護結構模型進行參數化設計,并不斷完善模型構件精細度和設計方案。主體和配套基坑主要采用樁錨支護形式,局部采用內支撐支護形式,止水帷幕采用水泥土攪拌樁+旋噴樁形式。其中主體基坑鄰近地鐵部位分別采用單排樁+鋼支撐支護、雙排樁支護、斜拋撐支護。配套基坑靠近地鐵段采用雙排樁+混凝土支撐+型鋼組合支撐。

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                                                                                                                                                                                              施工應用情況

                                                                                                                                                                                              本工程施工工藝較多,施工質量控制要求高,涉及灌注樁、疏干井、預應力錨桿、微型鋼管樁等多種施工工藝。借助BIM技術對施工技術方案進行預演,從而全面把握和展示施工工藝關鍵點,對項目施工方案的優化和選擇發揮了重要作用。項目部組織參與施工的管理人員和作業人員,采用多媒體可視化交底的方式,對施工過程的每一個環節和細節進行詳細的講解,保證施工質量。

                                                                                                                                                                                              在本項目的整個數字化進程中,綜合使用了多個創新技術,如BIM信息化設計施工、三維可視化自動監測技術、裝配式鋼支撐軸力自動伺服技術等,為業主和總承包方提供相應的模型數據及監測數據,打造優質精品工程。

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                                                                                                                                                                                              未來展望

                                                                                                                                                                                              此次獲獎,充分展現了中巖大地在基坑工程設計施工一體化和綜合應用BIM技術方面的成果,提升了公司在BIM技術應用領域的知名度,彰顯了公司以科技創新為驅動發展的精神。

                                                                                                                                                                                              未來,我們將借鑒公司以往BIM實施經驗,針對巖土工程設計、施工、監測三大領域,繼續加強BIM技術與互聯網云技術的有效結合,助力巖土工程信息技術一體化。中巖大地始終堅持追求“與大地和諧共生”的美好愿景,肩負“以科技為依托”,為客戶提供優質巖土解決方案的使命,秉承“悅人達己、創新卓越”的企業理念,愿和業界的新老朋友一起攜手,共創美好的明天。


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