建筑工程施工测量方案2（Construction engineering survey plan 2）.doc

建筑工程施工测量方案2（Construction engineering survey plan 2） The construction scheme of 2.txt measuring opportunities like the bald head hair, you catch caught, catch No. I talked to you for 10 minutes, but I didnt have any arguments with you. Then one of us must be very hypocritical! Fault is a brief regret, miss is always regret. Meet is the edge, know each other is a share, love is the agreement, together is true love. Construction engineering construction survey plan 2007-03-15 23:40 (excerpt from the prestressed, basement waterproofing membrane, construction works, construction surveying program in the measurement part, for reference. Natives note) First, check the basis of the start, the establishment of building control network 1. check the starting basis Party A shall provide positioning before measuring, control point coordinates three clothesbrush interconnected, and two elevation control points, as the field control based on point. Take the coordinate control point as the starting point. Two level traverse survey is used as building plane control network. On the basis of elevation control points, the level of leveling is measured and the elevation is measured to the field area. The plane control network accuracy of wire not less than 1/10000, elevation control survey closure error no greater than 30 V L mm (L for connecting route length to km). When building a building control network, the starting point should be checked. According to the coordinates of the buildings corner points on the red line pile and the drawings, the relative relation between them is calculated and the angle and distance calibration is carried out. Calibration error: the angle is + 12; the relative accuracy of the distance is not less than 1/15000. The initial elevation point application annexed leveling check, elevation calibration closure error is no more than 10mm (n for root n station number). 2. building a building control network Based on the traverse point, a rectangular plane contro