Hainan Steel tells you: measuring plane control Steel Works

1, the principle of distribution network site plan control network
After the site plan control network should be fully taken into account in accordance with the principles of design orientation, shape and size of the building axis, as well as the construction plan, site conditions, etc. OK, its distribution network principles:
1) control network should include as a starting point positioning based venues and starting side, the building and the main axis of the main points.
2) To facilitate the application under test, using the principle of (vertical plane location and level controls) and long-term retention, and try to compose graphics around parallel to the closure of the building, in order to close check.
3) control the line spacing to 30m ~ 50m appropriate, shall pass, as between the control points, transaction volume, its top surface elevation should be slightly lower than the elevation of the site design, pile bottom below the frozen layer for long-term retention.
Measuring method: grid plane control network, set up construction plane control with a small triangulation, establishing construction plane control wire measurement. Hainan Steel