互通立交工程主要工程項目的施工方案、施工方法.doc

主要工程項目的施工方案、施工方法
4.1測量工作
   本工程立交采用苜蓿葉加定向式全互通立交形式，×路上跨××路。由東向南和由西向北左轉采用定向匝道，由北向東和由南向西左轉采用苜蓿葉形匝道，分別布設在西南和東北象限內。線位復雜，做好測量工作是保證工程順利進行的關鍵。為了加強施工過程的測量管理工作，杜絕錯誤，提高精度，減少誤差，擬在本工程中實施三級管理制度。工程處總工程師負責測量管理工作，工程處技質部負責對坐標進行復測，項目總工程師負責項目部測量管理工作，項目部技質部測量工程師負責具體工作（包括接樁、驗樁、引測水準點、加密控制等），施工專業(yè)隊測量班負責隨工測量工作。嚴格執(zhí)行有關測量工作監(jiān)理報驗程序，測量復核制度，各工序線位、高程經測量工程師復測合格出具測量結果復核單，再上報監(jiān)理復核。審批后，方可進行施工。
4.1.1布設三級導線閉合網，四等水準高程網
在施工現場周圍布設三級導線閉合控制網（起閉于城市導線點），四等水準高程控制網，主要結構物采用坐標控制，導線點間距控制在200m左右，方法采用符合法。繪制草圖上報監(jiān)理，樁點用水泥混凝土加固保護。
4.1.2保證量測精度的要求和做法
為保證測量精度，儀器測出的數據，必須加改正值，重要部位的點位。高程測量必須做平差處理，角度取到0.1"
 

Major projects of the construction plan, construction method
4.1 Measurements
   This project increases directional interchange with cloverleaf type form of the whole interchange, × × × Road across the road. From east to south and from west to north to turn left using directional ramp from the north east and from south to west with cloverleaf ramp turn left, were laid in the southwest and northeast quadrants. Line bit complicated, do measurements to ensure the smooth progress of key projects. In order to strengthen the management of the construction process of measurement to eliminate errors, improve accuracy, reduce errors, the proposed project in the three-tier management system. Agency Chief Engineer is responsible for measuring the management of the Agency responsible for technical quality of the Department coordinates the retest, the project engineer responsible for project management of the Department of Survey, Department of Technology Project Department of measuring quality engineer in charge of specific work (including the pile, piles, cited standard point of measurement, encryption controls, etc.), construction class is responsible for measuring the professional team of Engineering for work with. Strict supervision of the implementation of the inspection process measurements, measurement review system, each process alignment, elevation by measuring qualified engineers retest single issue review of measurement results, and then submitted to the Commissioner for review. Approval before proceeding to construction.
4.1.1 Closed wire mesh laid three, four, etc. Leveling Network
Laying around at the construction site closed three wire control network (close to the city from wire points), fourth-level control network, the main structure with coordinate control, wire control point spacing is about 200m, methods consistent with law. Sketching reported supervision, pile point protection with reinforced concrete.
4.1.2 ensure that the measurement accuracy requirements and practices
To ensure accuracy, measure the data, corrections must be added the important parts of the point position. Leveling adjustment must be done processing, point of access to 0.1 "

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