Method and an apparatus for measuring the load-bearing capacity of a road surface
US6499339B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Aug 10, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an apparatus for determining the resiliency of a road surface include a vehicle (1) that is caused to move along the road surface (3) and that exerts a load on said surface with one wheel (2). A ball of plastic material (16) is shot onto the road surface (3) so as to adhere thereto in the movement path of two measuring arrangements (8, 9; 18, 19) which are separated in the direction of movement of the vehicle (1) and by means of which the vertical distance is measured between the upper side of the ball (16) adhering to the road surface (3) and a vehicle-carried reference in two positions along the vehicle. The distance between the reference and the measuring body can be established in several positions along the vehicle (1), for determining the deflection curve of the road surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.