互通立交工程主要工程項(xiàng)目的施工方案、施工方法.doc

主要工程項(xiàng)目的施工方案、施工方法
4.1測(cè)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(zhuǎn)采用定向匝道，由北向東和由南向西左轉(zhuǎn)采用苜蓿葉形匝道，分別布設(shè)在西南和東北象限內(nèi)。線位復(fù)雜，做好測(cè)量工作是保證工程順利進(jìn)行的關(guān)鍵。為了加強(qiáng)施工過(guò)程的測(cè)量管理工作，杜絕錯(cuò)誤，提高精度，減少誤差，擬在本工程中實(shí)施三級(jí)管理制度。工程處總工程師負(fù)責(zé)測(cè)量管理工作，工程處技質(zhì)部負(fù)責(zé)對(duì)坐標(biāo)進(jìn)行復(fù)測(cè)，項(xiàng)目總工程師負(fù)責(zé)項(xiàng)目部測(cè)量管理工作，項(xiàng)目部技質(zhì)部測(cè)量工程師負(fù)責(zé)具體工作（包括接樁、驗(yàn)樁、引測(cè)水準(zhǔn)點(diǎn)、加密控制等），施工專(zhuān)業(yè)隊(duì)測(cè)量班負(fù)責(zé)隨工測(cè)量工作。嚴(yán)格執(zhí)行有關(guān)測(cè)量工作監(jiān)理報(bào)驗(yàn)程序，測(cè)量復(fù)核制度，各工序線位、高程經(jīng)測(cè)量工程師復(fù)測(cè)合格出具測(cè)量結(jié)果復(fù)核單，再上報(bào)監(jiān)理復(fù)核。審批后，方可進(jìn)行施工。
4.1.1布設(shè)三級(jí)導(dǎo)線閉合網(wǎng)，四等水準(zhǔn)高程網(wǎng)
在施工現(xiàn)場(chǎng)周?chē)�布設(shè)三級(jí)導(dǎo)線閉合控制網(wǎng)（起閉于城市導(dǎo)線點(diǎn)），四等水準(zhǔn)高程控制網(wǎng)，主要結(jié)構(gòu)物采用坐標(biāo)控制，導(dǎo)線點(diǎn)間距控制在200m左右，方法采用符合法。繪制草圖上報(bào)監(jiān)理，樁點(diǎn)用水泥混凝土加固保護(hù)。
4.1.2保證量測(cè)精度的要求和做法
為保證測(cè)量精度，儀器測(cè)出的數(shù)據(jù)，必須加改正值，重要部位的點(diǎn)位。高程測(cè)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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