Single-hole jet exploration method for fault occurrence
The invention relates to an advanced fault exploration method based on radial jet technology. The method comprises: step one, straight hole ground construction is carried out to carry out preliminaryexploration and confirmation of a fault development position; step two, on the basis of an exploratio...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to an advanced fault exploration method based on radial jet technology. The method comprises: step one, straight hole ground construction is carried out to carry out preliminaryexploration and confirmation of a fault development position; step two, on the basis of an exploration result, a radial jet hole is designed and expected profile maps of all jet hole strata are drawn;step three, on the basis of the expected profiles, a radial jet flow construction process is designed; step four, all radial jet flow holes are constructed at designed positions and jet hole breakpoint positions are determined; and step five, according to parameters of the straight hole and all jet hole breakpoints, fault occurrence is calculated, a tunnel is determined, and a fault position is disclosed. The method having characteristics of reduced drilling engineering amount, low engineering cost, wide coverage range, and high adaptability has great advantages in the advanced exploration ofthe tunnel fault.
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