新世界花園回遷樓基坑支護施工方案.doc

 二、工程概況
 (一)建筑結構設計概況
擬建新世界花園回遷樓是一幢集商業和商住為一體的建筑物，地上十四層，局部十層，地下三層。建筑物外觀呈“┓”形，回遷樓建筑結構周長約411m，基坑開挖深度－15.5m（決對標高L29.68m），建筑物±0.00＝48.18m。設建在南面和東面為地下停車場的1＃和2＃車道，1＃和2＃車道進出車庫的位置不同，單平面位置在南面和東面相重疊且委員地下三層基槽之外，整改車道共用基礎結構外墻，車道凈寬3.6m，自南面向東面延伸的車道基地標高約為－4.85m(絕對標高:40.23m)～-13.75m(絕對標高:31.43m)。

 (二)建設場地及周圍環境狀況
北京新世界花園商業小區位于崇文門外大街西側，東茶食胡同與珠市東大街之間，北臨在建的新世界中心二期工程，占地8.7公頃。擬建的新世界花園商業回遷樓位于花園小區的東北角方位。現狀地面標高為：43.21～45.52m。擬建的回遷樓周圍環境較復雜，除北面和東面為道路無距離較近的建筑物外，其它幾面均有臨近的建筑物需要保護，其中：在拐角回遷樓的內側臨近與之同時開工的1＃住宅樓(基礎埋深－3.10m，相當于42.08m)，兩者結構距離最近處約為3.5m，其它距離在4.2～11.6m范圍；南面臨近崇文區文化館的三層群房(其±0.00＝43.40m基礎底標高－7.04m，相當于38.14m)，結構凈距離約為9.37m；東臨崇文門外大街，設計車道結構外皮距圍墻5.1m。基坑的東面
Second, project profiles
 (A) Overview of Design of Building Structures
New World Garden Huiqian Lou is a proposed set of commercial and residential buildings as a whole, the ground layer 14, local 10 floors on the ground three. Building appearance "┓" shape, Hui Qianlou week about building structure 411m, excavation depth-15.5m (decision on the level L29.68m), building ± 0.00 = 48.18m. To be built in the south and east for the underground car park of 1 # and 2 # Drive, 1 # and 2 # Drive out the location of the garage, the single-plane location of overlap in the south and east and the members of the underground tank outside the base layer, external rectification Drive shared infrastructure, Drive clear width 3.6m, extending from the south east of the lane for the base level of about-4.85m (absolute elevation: 40.23m) ~-13.75m (absolute elevation: 31.43m).

 (B) of the construction site and the surrounding environment
Beijing New World Garden is located in Chongwen district business outside the Avenue west, East cakes and sweetmeats alley between East Street and Pearl City, north in the construction of the New World Centre Phase II, an area of 8.7 hectares. The proposed New World Garden, Garden District business Huiqian Lou in the northeast corner of position. Status surface elevation: 43.21 ~ 45.52m. The proposed Hui Qianlou more complex environment, in addition to the north and east of the road no closer to the building from the outside, several other buildings near the surface are in need of protection, including: the inside near the corner with Huiqian Lou also started a # residential building (basic depth-3.10m, equivalent to 42.08m), the two structures is about the nearest office 3.5m, other distance in the range of 4.2 ~ 11.6m; south near the cultural centers of the three groups, Chongwen District room (the ± 0.00 = 43.40m base bottom elevation-7.04m, equivalent to 38.14m), the structure of net distance of about 9.37m; east Chongwenmen Avenue, away from the wall of the jacket design Drive structure 5.1m. Excavation of the east
 

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