Rapid road repair vehicle

• US 5,947,636 A
• Filed: 12/12/1997
• Issued: 09/07/1999
• Est. Priority Date: 06/28/1995
• Status: Expired due to Term

• Current Assignee: Sandia Corporation (Martin Marietta Corporation)
• Original Assignee: Sandia Corporation (Martin Marietta Corporation)
• Inventors: Mara, Leo M.
• Primary Examiner(s): LISEHORA, JAMES
• Application Number:
  US08/989,901
• Time in Patent Office: 634 Days
• Field of Search: 404/72, 404/75, 404/84.05, 404/84.1, 404/84.5, 404/101, 404/104, 404/108, 404/111, 404/102
• US Class Current: 404/84.05
• CPC Class Codes: E01C 23/065 Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving in situ mixing of hydraulic cement concrete E01C19/025; apparatus for in-plant recycling E01C19/1004, E01C19/1036
• CPC Class Codes: E01C 23/07 Apparatus combining measurement of the surface configuration of paving with application of material in proportion to the measured irregularities measuring means only E01C23/01 G01B

Abstract

Disclosed are improvments to a rapid road repair vehicle comprising an improved cleaning device arrangement, two dispensing arrays for filling defects more rapidly and efficiently, an array of pre-heaters to heat the road way surface in order to help the repair material better bond to the repaired surface, a means for detecting, measuring, and computing the number, location and volume of each of the detected surface imperfection, and a computer means schema for controlling the operation of the plurality of vehicle subsystems. The improved vehicle is, therefore, better able to perform its intended function of filling surface imperfections while moving over those surfaces at near normal traffic speeds.

Claims

1. An improved rapid road repair vehicle comprising:

a vehicle capable of traveling over a surface to be repaired, said vehicle having front and rear ends and an undercarriage, said vehicle further having tires mounted on forward and rearward wheel/axle assemblies, said assemblies mounted onto said undercarriage for supporting said vehicle;

a first row of scanners attached to said vehicle undercarriage near said front end, said scanners capable of detecting and measuring at least one surface imperfection in the surface to be repaired;

a row of cleaning devices attached to said vehicle undercarriage behind said first row of said scanners, said cleaning devices for cleaning the surface imperfection;

a second row of scanners attached to said vehicle undercarriage behind said row of cleaning devices, said second row of scanners for re-measuring the cleaned imperfection, and for calculating the volume of the surface imperfection;

a first array of fast-acting pneumatically dispensing valves/nozzles attached to said vehicle, said array comprising a plurality of interwoven and independently addressable valves/nozzles to apply an amount of aggregate repair material to the surface imperfection to be repaired;

a row of surface tampers attached to said vehicle undercarriage and located behind said first array, said tampers for smoothing the surface of the repaired surface imperfection;

a second array of fast-acting pneumatically dispensing valves/nozzles attached to said vehicle located behind said tampers, said second array comprising a plurality of interwoven and independently addressable valves/nozzles to apply an amount of repair material to the surface imperfection to be repaired;

a row of dispensing valves/nozzles attached to said vehicle undercarriage and located behind said second array, said dispensing valves/nozzles for applying a finish coat/sealer over the repaired surface imperfection;

computer means for addressing and simultaneously controlling the operation of each of said fast-acting pneumatically valves/nozzles comprising said first and said second arrays, wherein a volume of repair material equivalent to the measured volume of the surface imperfection is dispensed into said imperfection by the operation of one or a succession of said valves/nozzles within each said array as said arrays move over said surface imperfection, said computer means for further addressing and controlling the operation of said dispensing valves/nozzles; and

a third row of scanners attached to said vehicle undercarriage near said vehicle rear end, said third row of scanners for recording and cataloging the repair work.

2. An improved rapid road repair vehicle according to claim 1, wherein said first and second row of scanners comprise a plurality of high-speed laser scanners, each said scanner further including individual optics elements, a matrix array picture processor, and an associated microprocessor, each said microprocessor including software means for identifying, measuring, and calculating the volume and shape of said surface imperfections.

3. An improved rapid road repair vehicle as in claim 1 wherein said computer means further comprises software means, said software means for:

calculating the relative position, speed, and probable path of said surface imperfection, with respect to said valves/nozzles comprising said first and second arrays, as said road repair vehicle passes over said surface imperfection;

calculating the number, array location, and sequence of operation of each said nozzle comprising said first and second arrays which will pass over said surface imperfection;

calculating the amount and type of repair materials dispensed by each said nozzle;

calculating the duration each said nozzle will dispense said repair material; and

controlling and synchronizing the sequential operation of each said nozzle as it passes over said surface imperfection.

4. An improved rapid road repair vehicle as in claim 1, further comprising a row of repair heating elements, said heating elements attached to the vehicle and located between said second row of scanners and said first array.

5. An improved rapid road repair vehicle as in claim 4 wherein said repair heating elements comprise either incandescent radiant energy producing elements, infrared producing elements, or a plurality of microwave sources.

6. An improved rapid road repair vehicle according to claim 1, wherein said data from said third row of scanners is recorded along with a global positioning satellite location and a universal clock time to catalog the repair surface history.

7. An improved rapid road repair vehicle according to claim 1, wherein said cleaning devices include a leading row of air pressure devices and a trailing row of vacuum devices to remove all loose material from the surface imperfections found in preparation for the repair to be effected.

8. An improved rapid road repair vehicle according to claim 1, wherein said vehicle includes a means for altering the length of said vehicle to accommodate the setting time of the repair material being used and the speed of the vehicle over the surface to be repaired.

9. An improved rapid road repair vehicle according to claim 1, wherein said vehicle has means for altering the said vehicle width in order to accommodate a change in width of the surface to be repaired.

10. An improved rapid road repair vehicle according to claim 9, wherein said means for altering said vehicle width comprises a set of wings extending along the length of each side of said vehicle and wherein each set of wings further comprises extensions of said first, second and third rows of said scanners, said row of said cleaning devices, said first and second arrays, said row of said tampers, said row of said dispenses valves/nozzles, and said row of said heaters.

11. An improved rapid road repair vehicle as in claim 1 further comprising a second row of vacuum valves/nozzles for cleaning the repaired road surface, said second row of vacuum valves/nozzles attached to said vehicle and located between said row of dispensers and said third row of scanners.

12. An improved rapid road repair vehicle as in claim 1 further including a third set of tires mounted on a third wheel/axle assembly, said assembly located midway between said forward and said rearward wheel/axle assemblies.

13. An improved rapid road repair vehicle according to claim 1, wherein said vehicle has a display sign on its rear end to warn traffic of the repairs in process.