Bore location system having mapping capability

• US 6,102,136 A
• Filed: 11/21/1997
• Issued: 08/15/2000
• Est. Priority Date: 01/16/1996
• Status: Expired due to Term

• Current Assignee: Digital Control Incorporated
• Original Assignee: McLaughlin Manufacturing Co Inc.
• Inventors: Mizuno, Morio, Archambeault, John T., Gasmovic, David J.
• Primary Examiner(s): NEUDER, WILLIAM P
• Application Number:
  US08/975,801
• Time in Patent Office: 998 Days
• Field of Search: 175/45, 175/61, 175/62, 340/853.3, 340/853.4, 340/853.6
• US Class Current: 175/45
• CPC Class Codes: G01V 11/005 Devices for positioning logging sondes with respect to the borehole wall centralising devices for drilling rods or pipes E21B17/10; setting or locking tools in boreholes E21B23/00; locating objects in boreholes E21B47/09
• CPC Class Codes: G01V 3/08 operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices with electromagnetic waves G01V3/12
• CPC Class Codes: G01V 3/15 specially adapted for use during transport, e.g. by a person, vehicle or boat
• CPC Class Codes: G01V 3/17 operating with electromagnetic waves operating with millimetre waves G01V8/005

Abstract

A system for mapping horizontal bores below a ground surface is provided. A transmitting source radiates a location signal from a bore. The bore may be a newly dug bore or a bore containing an existing utility. A receiver device receives a location signal and indicates, responsively to the location signal, the lateral position of the horizontal bore with respect to the receiver device. A measurement device measures the depth of the bore with respect to the ground surface at selected locations along the bore. A monitor device receives the depth data from the measurement device, compiles the depth data associated with the selected locations with respect to at least one reference position, and outputs the compiled depth data so that the depth of the bore at the selected locations may be collectively identified.

Claims

1. A system for mapping horizontal bores below a ground surface, said system comprising:

a transmitting source configured to output a location signal from the bore; and

a receiver assembly in operative communication with said transmitting source and configured to receive said location signal, to determine, responsively to said location signal, the depth of the bore with respect to a ground surface, to compile depth data corresponding to the depth of the bore with respect to said ground surface along a horizontal length thereof, and to output the compiled data.

2. The system as in claim 1, wherein said transmitting source is configured to radiate a location signal from the horizontal bore.

3. The system as in claim 1, wherein said receiver assembly is configured to determine the lateral position of the horizontal bore responsively to a location signal output by said transmitting source.

4. The system as in claim 1, wherein said receiver assembly includes

a receiver device configured to receive a location signal from said transmitting source and to indicate, responsively thereto, the lateral position of the horizontal bore,

a measurement device configured to measure the depth of the bore with respect to said reference surface, and

a monitor device configured to receive depth data from said measurement device, to compile the depth data, and to output the compiled depth data.

5. A system for mapping horizontal bores below a ground surface, said system comprising:

a transmitting source configured to output a location signal from the bore;

a receiver device configured to receive the location signal, said receiver device including a portable assembly adapted to be carried by an operator approximately above the bore;

a measurement device configured to measure the depth of the bore with respect to a reference surface; and

a monitor device configured to compile data corresponding to the depth of the bore measured by said measurement device along a horizontal length of the bore, and to output the compiled data.

6. The system as in claim 5, wherein said transmitting source is configured to radiate a location signal from the horizontal bore and wherein said receiver device is configured to receive the radiated location signal and determine the lateral position of the bore with respect to said receiver device responsively thereto.

7. The system as in claim 5, including a boring machine having a boring rod including a directional boring head, said boring machine further including manipulative controls actuatable by an operator to guide said boring head.

8. The system as in claim 7, wherein said transmitting source includes a signal generating probe associated with said boring head for generating the location signal.

9. The system as in claim 5, wherein said monitor device includes a personal computer.

10. A system for mapping horizontal bores below a ground surface, said system comprising:

means for transmitting a location signal from the bore;

means for receiving the location signal;

means for measuring the depth of the bore with respect to a reference surface;

means for compiling the depth data corresponding to the depth of the bore along a horizontal length thereof; and

means for outputting the compiled depth data.

11. A system for mapping horizontal bores below a ground surface, said system comprising:

a transmitting source configured to radiate a location signal from the bore;

a portable receiver and measurement device adapted to be carried by an operator during operation at a location approximately above the bore to receive the location signal, said receiver and measurement device being configured to determine, responsively to the location signal, the depth of the horizontal bore with respect to the ground surface;

said receiver and measurement device including a transmitter for wirelessly transmitting from the receiver and measurement device an informational signal corresponding at least to the depth of the bore; and

a monitor device configured to compile data corresponding to the depth of the bore measured by said measurement device along a horizontal length of the bore, and to output the compiled data.

12. The system as in claim 11, wherein said monitor device includes a personal computer device and is configured to generate a plot of bore depth along the horizontal length of the bore.

13. A method for mapping horizontal bores below a ground surface, said method comprising the steps of:

radiating a location signal from the bore;

receiving the location signal;

determining the depth of the bore with respect to a ground surface responsively to the received location signal;

electronically compiling data corresponding to the depth, determined at said determining step, of the bore along a horizontal length of the bore; and

outputting a signal corresponding to the compiled data.

14. The method as in claim 13, wherein said outputting step includes outputting said signal as a visual display.

15. A system for mapping horizontal bores below a ground surface, said system comprising:

a boring machine driving a boring rod including a directional boring head, said boring machine including manipulative controls actuatable by an operator to guide said boring head;

a signal generating probe attached at said boring head and configured to generate a location signal from the bore;

a portable receiver and measurement device adapted to be carried by an operator during operation at a location approximately above the bore to receive the location signal, said receiver and measurement device being configured to receive said location signal and to measure, responsively to said location signal, the depth of said probe with respect to the ground surface;

said receiver and measurement device including a transmitter for wirelessly transmitting from the receiver and measurement device an informational signal corresponding at least to said probe depth; and

a monitor device including

a receiver circuit configured to receive said informational signal,

a memory circuit, and

a control device configured to store, responsively to an instruction signal received from an operator, probe depth data from said informational signal in said memory circuit so that said depth data is identified with a position along said horizontal bore at which said probe depth is measured.

16. The system as in claim 15, wherein said memory circuit and said control device are disposed with said receiver circuit in an integrally constructed said monitor device.

17. The system as in claim 15, wherein said monitor device includes a display device configured to graphically display, responsively to said control device, said depth data at a plurality of said positions.

18. A system for mapping horizontal bores below a ground surface, said system comprising:

means for radiating a location signal from the bore;

means for receiving the location signal and for indicating, responsively to the location signal, the lateral position of the horizontal bore with respect to said receiving means;

means for measuring the depth of the bore with respect to the ground surface at selected location along said bore; and

means for receiving depth data from said measuring means, compiling the depth data associated with the selected locations with respect to at least one reference position, and outputting the compiled depth data so that the depth of the bore at the selected locations may be collectively identified.

19. A system for mapping horizontal bores below a ground surface of an area in which at least one existing underground bore is located, said system comprising:

a transmitting source configured to output a location signal from the horizontal bore; and

a receiver assembly in operative communication with said transmitting source and configured to store data corresponding to the depth of an existing underground bore with respect to the ground surface, to receive the location signal, to determine responsively to the location signal the depth of the horizontal bore with respect to the ground surface and to generate a plot of the existing underground bore, and the bore depth along a length of the horizontal bore, with respect to the ground surface.

20. The system as in claim 19, wherein the receiver assembly is configured to plot the existing underground bore only where the existing underground bore crosses any vertical line defined by the horizontal bore length.

21. The system as in claim 19, wherein said receiver assembly includes

a receiver device configured to receive a location signal from said transmitting source and to indicate, responsively thereto, the lateral position of the horizontal bore,

a measurement device configured to measure the depth of the horizontal bore with respect to the ground surface, and

a monitor device configured to receive depth data from the measurement device and to generate said plot.

22. A system for mapping horizontal bores below a ground surface of an area in which at least one existing underground bore is located, said system comprising:

a transmitting source configured to radiate a location signal from the horizontal bore;

a portable receiver and measurement device adapted to be carried by an operator during operation at a location above the horizontal bore to receive the location signal, the receiver and measurement device being configured to determine, responsively to the location signal, the depth of the horizontal bore with respect to the ground surface;

the receiver and measurement device including a transmitter for wirelessly transmitting from the receiver and measurement device an informational signal corresponding at least to the depth of the horizontal bore; and

a monitor device configured to receive the informational signal, to store data corresponding to the depth of an existing underground bore with respect to the ground surface, and to generate a plot of the existing underground bore, and the bore depth along a length of the horizontal bore, with respect to the ground surface.

23. The system as in claim 22, wherein said monitor device includes a personal computer device.

24. The system as in claim 22, wherein the monitor device is configured to plot the existing underground bore only where the existing underground bore crosses any vertical line defined by the horizontal bore length.

25. A system for mapping horizontal bores below a ground surface, said system comprising:

a transmitting source configured to output a location signal from a horizontal bore; and

a receiver assembly in operative communication with said transmitting source and configured to receive the location signal, to determine, responsively to the location signal, the depth of the horizontal bore with respect to the ground surface, and to generate a plot of the ground surface elevation and the horizontal bore'"'"'s depth along a length of the horizontal bore with respect to the ground surface elevation.

26. The system as in claim 25, wherein the receiver assembly includes

a receiver device configured to receive a location signal from the transmitting source and to indicate, responsively thereto, the lateral position of the horizontal bore,

a measurement device configured to measure the depth of the horizontal bore with respect to the ground surface, and

a monitor device configured to receive depth data from the measurement device and to generate said plot.

27. A system for mapping horizontal bores below a ground surface, said system comprising:

a transmitting source configured to radiate a location signal from the horizontal bore;

a portable receiver and measurement device adapted to be carried by an operator during operation at a location above the horizontal bore to receive the location signal, the receiver and measurement device being configured to determine, responsively to the location signal, the depth of the horizontal bore with respect to the ground surface;

the receiver and measurement device including a transmitter for wirelessly transmitting from the receiver and measurement device an informational signal corresponding at least to the depth of the horizontal bore; and

a monitor device configured to receive the informational signal and to generate a plot of the ground surface elevation and the bore depth along a length of the horizontal bore with respect to the ground surface elevation.

28. The system as in claim 27, wherein said monitor device includes a personal computer device.

29. A boring system for use in an area in which at least one existing underground bore is located, said system comprising:

a boring machine having a boring head and manipulative controls actuatable by an operator to guide the boring head in a horizontal bore;

a transmitting source associated with the boring head and configured to generate a location signal from the horizontal bore;

a signal mechanism in communication with an existing underground bore and configured to generate an electromagnetic signal along the existing underground bore; and

a receiver assembly configured to receive the electromagnetic signal and the location signal and to determine the relative position of the existing underground bore and the horizontal bore responsively thereto.

30. The system as in claim 29, wherein the electromagnetic signal includes a magnetic field radiated from the existing underground bore.

31. The system as in claim 29, wherein the existing underground bore includes a metallic utility line.

32. The system as in claim 29, wherein the receiver assembly includes

a receiver device configured to receive a location signal from said transmitting source and to indicate, responsively thereto, the lateral position of the horizontal bore,

a measurement device configured to measure the depth of the horizontal bore with respect to the ground surface, and

a monitor device configured to receive depth data from the measurement device.

33. The system as in claim 32, wherein the receiver device and the measurement device comprise a portable assembly adapted to be carried by an operator approximately above the bore.

34. The system as in claim 33, wherein the portable assembly includes a transmitter for wirelessly transmitting the depth data to the monitor device.

35. A system for mapping horizontal bores below a ground surface of an area in which at least one existing underground bore is located, said system comprising:

a boring machine driving a boring rod including a directional boring head, said boring machine including manipulative controls actuatable by an operator to guide said boring head;

a signal generating probe attached at said boring head and configured to radiate a location signal from the bore;

a portable receiver and measurement device adapted to be carried by an operator during operation at a location approximately above the bore to receive the location signal, said receiver and measurement device being configured to receive said location signal and to measure, responsively to said location signal, the depth of said probe with respect to a reference surface;

said receiver and measurement device including a transmitter for wirelessly transmitting from the receiver and measurement device an informational signal corresponding at least to said probe depth; and

a monitor device including

a receiver circuit configured to receive said informational signal,

a memory circuit, and

a control device configured to store, responsively to an instruction signal received from an operator, probe depth data from said informational signal in said memory circuit so that said depth data is identified with a position along said horizontal bore at which said probe depth is measured,

wherein said monitor device is configured to store data corresponding to the depth of an existing underground bore with respect to said reference surface, and wherein said control device is configured to generate a plot of said existing underground bore, and the depth of said horizontal bore along a length of said horizontal bore, with respect to said reference surface.

36. The system as in claim 35, wherein said reference surface is a ground surface.