互通立交工程主要工程项目的施工方案、施工方法.doc

主要工程项目的施工方案、施工方法
4.1测量工作
   本工程立交采用苜蓿叶加定向式全互通立交形式，×路上跨××路。由东向南和由西向北左转采用定向匝道，由北向东和由南向西左转采用苜蓿叶形匝道，分别布设在西南和东北象限内。线位复杂，做好测量工作是保证工程顺利进行的关键。为了加强施工过程的测量管理工作，杜绝错误，提高精度，减少误差，拟在本工程中实施三级管理制度。工程处总工程师负责测量管理工作，工程处技质部负责对坐标进行复测，项目总工程师负责项目部测量管理工作，项目部技质部测量工程师负责具体工作（包括接桩、验桩、引测水准点、加密控制等），施工专业队测量班负责随工测量工作。严格执行有关测量工作监理报验程序，测量复核制度，各工序线位、高程经测量工程师复测合格出具测量结果复核单，再上报监理复核。审批后，方可进行施工。
4.1.1布设三级导线闭合网，四等水准高程网
在施工现场周围布设三级导线闭合控制网（起闭于城市导线点），四等水准高程控制网，主要结构物采用坐标控制，导线点间距控制在200m左右，方法采用符合法。绘制草图上报监理，桩点用水泥混凝土加固保护。
4.1.2保证量测精度的要求和做法
为保证测量精度，仪器测出的数据，必须加改正值，重要部位的点位。高程测量必须做平差处理，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 "