TESTING OF EQUIPMENT FOR DETERMINING SETTLEMENTS, PART 2

ERPROBUNG EINES GERAETES ZUR ERMITTLUNG VON EINSENKUNGEN, 2. TEIL

OBSERVATIONS OF BENKELMAN AND DYNAMIC SETTLEMENTS ON THE HILPOLTSTEIN EXPERIMENTAL ROAD WERE EVALUATED: (1) BOTH BENKELMAN AND DYNAMIC SETTLEMENT VALUES ARE SUBJECT TO PERIODIC FLUCTUATIONS WHICH CAN LAST ONE OR SEVERAL YEARS; (2) BOTH ON AVERAGE REMAIN ALMOST CONSTANT OVER A SECTION AND OVER A FAIRLY LONG PERIOD OF TIME; (3) BOTH ARE SUBJECT TO LOCAL FLUCTUATIONS. THESE CAN BE RELATED TO SETTLEMENTS AND PROBABLY ALSO TO THE FORMATION OF IRREGULARITIES ON THE SURFACE OF A ROAD. THEY PROVIDE INFORMATION ON THE DISTRIBUTION OF STIFFNESS IN A SECTION OF ROAD; (4) BENKELMAN SETTLEMENTS, IN RELATION TO BOTH PLACE AND TIME, DEVIATE MORE THAN DYNAMIC SETTLEMENT VALUES. THE RELIABILITY OF THE DYNAMIC VALUES IS THEREFORE CONSIDERABLY GREATER; (5) FURTHER TESTS ARE NEEDED TO DETERMINE THE RELATION BETWEEN SETTLEMENT VALUES AND ALTERATIONS TO PROFILES.