G5170工程加油站土建施工方案.doc

土建工程施工方案
    1、施工測量
建筑物定位放線、高程控制等施工測量均應分別記錄測量成果，經業主或監理單位復核認可后，方可進行下道工序施工。
1.1建筑物定位放線
根據業主提供的坐標，用經校驗合格的GJ2光學經緯儀采用直角坐標法測設出建筑物平面控制網，并在控制網頂點設置半永久性控制樁，用砼予以保護。根據建筑物施工平面圖，用同樣方法將主軸線定于控制網上。縱、橫向各設2條和4條主軸線，每條軸線為4個標識點，從而形成施工測量控制網，用以作為基礎定位放線依據，其誤差控在1/2000范圍之內。
1.2軸線控制：
根據施工平面圖和主軸線，利用經緯儀和鋼尺分別用直角坐標法和內分法測定條基中心線，各開間軸線用鋼卷尺量定。測設時，按常規方法進行復核，使之閉合差不超過規范規定。
1.3標高控制：
根據建設方給定的水準點，用經校驗的DS3水準儀進行高程測設，在擬建房屋周圍的原有建筑物陽角引測 ±0.00m控制點，標高傳遞采用經檢定的鋼卷尺沿墻角自±0.00M標高向上丈量傳遞，下部引上標高點不少于3點，對引上的標高用水準儀閉合，作為該標高點，測量成果記錄必須及時請建設單位復查簽字。
2、基礎工程
2.1場地平整及清理地下障礙物
本工程大部份座落在回填土上。工程
Civil engineering construction plan
    1, construction survey
Building orientation and setting out, construction survey elevation control the outcome should be measured were recorded by the owner or authorized supervisory agencies for review only after the processes the next construction.
1.1 Building Orientation-off
According to owners of coordinates, after checking with a qualified GJ2 optical theodolite method to measure the use of a Cartesian coordinate plane control placed on buildings, and control network of semi-permanent control vertices piles, with concrete to be protected. According to the building construction plan, the main axis with the same method will be to control the Internet. Vertical, horizontal, each with two and four main axes, each axis for the four identified points, creating construction survey control network, used as a basis for positioning discharge line basis, and the error control in the 1 / 2000 range.
1.2 Axis Control:
According to the construction plan and the main axis, respectively, using theodolite and steel rule with Cartesian method and the method section within the sub-base center line axis of the bay steel tape volume set. Layout of the time, according to conventional methods of review, so that difference does not exceed specification closure.
1.3 Elevation Control:
According to the standard construction side for a given point, with the water level by checking the DS3 test set for elevation, the proposed housing in existing buildings around the cape of lead measured ± 0.00m control point, elevation pass through test using steel tape measure along the corner measured from ± 0.00M elevation pass up, the lower elevation point lead on at least 3 points on the lead with a water level elevation on the closure, as the elevation point, measuring the results records must be signed in a timely manner, please review the construction unit.
2, basic engineering
2.1 site formation and clearance of underground obstacles
Most of this project is located in the backfill. Project
 

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