Underground mine surveillance system
First Claim
1. A system for continual surveillance of an underground mine location having a tunnel system, said system comprising:
- plural patterns of radially arrayed seismic energy receivers disposed in spaced locations of the earth'"'"'s surface above said underground mine in predetermined relationship with respect to said tunnel system of said mine, wherein said radial arrays of receivers each consists of plural lines of equi-spaced geophones with the lines extending outward at selected equi-angular disposition from a selected point at the respective location;
means receiving and amplifying received signals from each of the plural radially arrayed receivers from each pattern to provide plural seismic signal outputs;
means receiving and time-orienting said plural seismic signal outputs to determine the character of seismic energy and directionality of received seismic signals; and
means indicating said character of seismic energy and respective origin of said seismic energy within said underground mine location and the tunnel system thereof.
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Accused Products
Abstract
A system for maintaining a continuous log of activity in and around an underground mine wherein seismic energy in the area is continually monitored, processed and classified into meaningful relative data indications; and which system further includes selectively deployable seismic energy monitoring equipment providing more specific data in the event of mine catastrophy. This system utilizes permanently disposed seismic energy detectors and/or emergency detectors placed in accordance with the particular exigency, and detected seismic energy return is continually processed to maintain a data log indicative of general type and location of mine activity, with particular capability for isolation of unusual seismic events by comparison with statistical data constraints of predetermined character.
42 Citations
8 Claims
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1. A system for continual surveillance of an underground mine location having a tunnel system, said system comprising:
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plural patterns of radially arrayed seismic energy receivers disposed in spaced locations of the earth'"'"'s surface above said underground mine in predetermined relationship with respect to said tunnel system of said mine, wherein said radial arrays of receivers each consists of plural lines of equi-spaced geophones with the lines extending outward at selected equi-angular disposition from a selected point at the respective location; means receiving and amplifying received signals from each of the plural radially arrayed receivers from each pattern to provide plural seismic signal outputs; means receiving and time-orienting said plural seismic signal outputs to determine the character of seismic energy and directionality of received seismic signals; and means indicating said character of seismic energy and respective origin of said seismic energy within said underground mine location and the tunnel system thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification