[Construction Section 43]
CALCULATION PARAMETER
The geological first values becomes among other things with:
Plate loading tests, inklinometer, reflection measurements, sample drillings and that Settlement measurements determines. In the tunnel construction come then still radial and tangential ground pressure pressure capsules and those Measuring anchor with differently long Extensometers, i.e. thus the measurement of the shift in the mountains.
Convergence distances over the diameter, the measurement of the change of the diameter, roofridge check measurements, which referred laser measurement over the deformation to the length, kalotte check measurements, these are referred the laser measurements over the deformation to the length, in addition.
>
SUBSECTIONS OF THE BUILDING INDUSTRY
9. BRIDGE CONSTRUCTION
A bridge is a building for spanning obstacles andor to leading traffic routes as for example road, rail, water way or structural facilities over natural as for example rivers, straits, ravines or as for example motorways or railroad lines obstacles artificially put on.
In the modern bridge construction the principle that the bridge is part of the road, developed itself further going by that this follows the drawing of the road. Then, from it a multiplicity of geometrical variations results. So the crossing angle does not have to be right angled for example between a highway and a motorway. With the bridge one speaks then of an inclined bridge, contrary to the straight bridge. If a bridge is in the radius speaks in such a way one of a bridge curved in the sketch, it is in a tub or a crest, then one speaks of a bridge curved in the diagram.
In addition, bridges occur, which are curved both in reason and in the diagram, are bridges in twisting ranges of the roadway or even bridges are in the range of a change of curvature of the roadway. For at the execution of construction are irregular geometry and expansions took part the challenges large within the range of a bridge, building geometry complicated there frequently with the usual building procedures not compatible are and the development of special or the modification of usual building procedures require