The ramp from the bridge connecting the paws up temporary Bridge 1 Fence is 25 m so will cause great influence to the bridge Railings 1 because the shock force of the loading operations and temporary bridge on the bridge's beams Fencing system 1.+ In-depth digging to enclosed tunnel construction is very large (measured from the bottom of the natural ground dig is 11.5 m), when there is a temporary bridge over the digging work, construction of the concrete-sealed tunnel met a lot of treasures and dangers for humans and machines when executing in the bottom of the pit dug.
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