A fault zone activity monitoring method, exploration method and device

Active Publication Date: 2021-04-06
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the outcrop analysis method is limited by the exposure conditions of the field section and cannot be fully analyzed. At the same time, the field outcrop has evolved over a long period of time, and there will be a certain degree of difference between the defined fault zone structure and the underground fault zone.
Current methods such as drilling analysis and vibration analysis are limited by resolution, etc., and their accuracy is also limited to a certain extent

Method used

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  • A fault zone activity monitoring method, exploration method and device
  • A fault zone activity monitoring method, exploration method and device
  • A fault zone activity monitoring method, exploration method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Please refer to figure 2 , is a flow chart of a fault zone exploration method in an embodiment. This application discloses a method for exploration of fault zones, including:

[0036] Step 201, setting multiple monitoring points in the pre-measured target area according to the monitoring accuracy. that is, image 3 As shown, it is a schematic diagram of setting monitoring points for the target area in an embodiment. The range delineated by the curve 302 is the pre-measured target area, and the marking lines 303 and 304 are the length and width of the positioning accuracy P (in meters). A plurality of monitoring points 301 are set in the pre-measured target area according to the monitoring accuracy.

[0037] Step 202, monitor the charged particles overflowing from the ground surface at the monitoring point. It is the characteristic of charged particles spilled from the ground surface by the application of charged particle monitoring devices. The charged particle mo...

Embodiment 2

[0055] Please refer to Figure 7 , is a flow chart of a fault zone activity monitoring method in another embodiment. The application discloses a method for monitoring the activity of a fault zone, including:

[0056] Step 701, setting a plurality of width monitoring points in the vertical direction of known fault zone distribution. Draw the horizontal direction and vertical direction of the fault zone according to the schematic diagram of the distribution of the known fault zone. Due to the structural characteristics of the fault zone, it is distributed in a band shape, and the extension direction of the fault zone to both sides is defined as the horizontal direction of the fault zone. The horizontal direction and the vertical direction are the vertical direction of the fault zone.

[0057] Step 702, monitor the charged particles overflowing from the ground surface at the width monitoring point. It is the characteristic of charged particles spilled from the ground surface b...

Embodiment 3

[0063] Such as Figure 8 Shown is a structural schematic diagram of a fault zone exploration device in another embodiment. The present application discloses a fault zone detection device including a permanent magnetic core 804 , a coil 803 and a signal acquisition circuit 805 . The permanent magnet core 804 is magnetic, and the coil 803 is wound around the periphery of the permanent magnet core 804 . Both ends of the coil 803 are respectively connected to the input terminals of the signal acquisition circuit 805 . An induction signal is generated when the inner space of the coil 803 is passed through by the surface overflow charged particles 801 . The signal acquisition circuit 805 is used to acquire the induced electrical signal generated by the coil 803 . The function of the permanent magnetic core 804 is to increase the magnetic permeability of the coil 803 , so that the signal acquisition circuit 805 can obtain the induced electrical signal in the coil 803 more easily. ...

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Abstract

The application discloses a fault zone activity monitoring method, exploration method and device. According to the monitoring accuracy, set multiple monitoring points in the pre-measured target area, monitor the charged particles overflowing from the ground surface at each monitoring point, and output the measurement data related to the characteristics of the charged particles, analyze the measurement data, and draw the fault zone Distribution diagram. Due to the innovative proposal to monitor the characteristics of charged particles overflowing from the ground surface, the distribution of fault zones and the monitoring of fault zone activities are carried out, and non-destructive exploration is realized while improving the exploration accuracy of fault zones. Not only can fault zones be surveyed in the field and in cities, but also the activities of known fault zones can be monitored.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to a fault zone activity monitoring method, exploration method and device. Background technique [0002] Fault zone (fault zone) is also called "fault zone". A zone consisting of a main fault plane, broken rock blocks on both sides, and several secondary faults or rupture surfaces. Structural rocks are developed near the main fault plane, and spread to both sides with the axis near the main fault plane, generally fault gouge or mylonite, fault breccia, cataclast, etc. appear in sequence, and then transition to faults outward Intact rocks beyond the belt. At present, fault zones are defined by analyzing the geological structure and its evolution. The specific methods are mainly outcrop analysis, drilling analysis, vibration analysis, reflection exploration of active source signals, and high-density electrical geophysical prospecting. Among them, the outcrop analysis method is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/08G01V3/10
CPCG01V3/082G01V3/104
Inventor 王新安雍珊珊张兴何春舅马滨延
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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