2.2 . Connecting measurements on the Bulgarian side |
56 |
2.3 . Connecting measurements on the Romanian side |
58 |
2.4 . DGPS measurements across the river |
59 |
2.5 . Height connection across the river |
60 |
2.5.1 . Measurements and processing |
60 |
2.5.2 . Height difference between Vidin and Calafat |
62 |
2.6 . Heights in digital projects of the electronic database |
63 |
2.7 . Coordinates |
64 |
3.1.2.4 . Providing geodetic , topographic , cadastral , infrastructural , legal ( expropriation ) | |
and other information – basis for bridge design |
66 |
1 . Available geodetic and topographic basis in the region for design of | |
Danube Bridge 2 |
66 |
1.1 . State and regional network for local purposes in the area of the bridge | |
to ensure the collection of topographic and other versatile information67 | |
1.1.1 . Updating the type and measurement of networks |
67 |
1.1.1.1 . Reference geodetic network to provide topographic survey in scale | |
1:1000 of an area of about 700 ha |
67 |
2 . Elaboration of an up-to-date numerical topographic map in scale 1:5000 68 | |
3 . Combining the numerical model of the topographic map with models from | |
the land subdivision plans in force |
69 |
4 . Exploring the location of underground conduits and facilities in | |
the construction area of the bridge and the railway equipment and | |
their designation in a copy of the topographic map in scale 1:5000 |
70 |
4.1 . Feasibility studies |
70 |
4.2 . Plan of underground conduits |
70 |
5 . Elaboration of a numerical cadastral plan in scale 1:1000 for the area | |
of Danube Bridge 2 Vidin – Calafat |
72 |
6 . Designation of the design solutions for the location of Danube Bridge 2 | |
and the accompanying infrastructure in the numerical model of | |
the topographic map in scale 1:5000 |
74 |
7 . Reference geodetic network to ensure the design of the adjacent | |
Infrastructure |
75 |
8 . Plot problems and expropriation |
78 |
9 . Hydrographic measurements and investigations and depiction of | |
underwater relief |
79 |
9.1 . General statements |
79 |
9.1.1 . Analysis of the initial information |
79 |
9.1.2 . Organization of work and equipment |
80 |
9.1.3 . Methodology and technology of work and normative regulations |
80 |
9.2 . Geodetic base |
81 |
9.2.1 . Work geodetic base |
81 |
9.2.2 . Data processing |
81 |
9.2.3 . Accuracy assessment |
82 |
9.3 . Topographic survey |
82 |
9.4 . Hydrographic survey |
82 |
9.4.1 . Technology and organization |
82 |
9.4.2 . Echo sounder measurements |
83 |
9.4.3 . Measurement processing |
84 |
9.4.4 . Accuracy assessment |
84 |