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A data processing method, surveying method and system for fault zone surveying

A data processing and fault zone technology, applied in the field of geological exploration, can solve the problems of inaccurate positioning and real-time monitoring of fault zones, and achieve the effect of improving the survey accuracy

Active Publication Date: 2021-08-03
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Solve the technical problem that the positioning of the fault zone survey in the existing technology is not accurate enough, and the activity of the fault zone cannot be monitored in real time

Method used

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  • A data processing method, surveying method and system for fault zone surveying
  • A data processing method, surveying method and system for fault zone surveying
  • A data processing method, surveying method and system for fault zone surveying

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Experimental program
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Embodiment 1

[0034] Please refer to figure 1 , which is a flow chart of a method for surveying a fault zone in an embodiment, the present application discloses a method for surveying a fault zone, including:

[0035] Step 101, deploy monitoring points in the pre-survey area.

[0036] According to the monitoring accuracy requirements for monitoring fault zones in the pre-survey area, multiple monitoring points are set in the pre-survey area. like figure 2 As shown, it is a schematic diagram of setting monitoring points in the pre-survey area in an embodiment. The range delineated by the curve 202 is the pre-survey area, and the marking lines 203 and 204 are the length and width of the positioning accuracy P (in meters). Set multiple monitoring points 201 and 205 in the pre-survey area according to monitoring accuracy requirements. The density of monitoring points depends on the monitoring accuracy requirements for fault zone identification. The higher the accuracy requirements, the highe...

Embodiment 2

[0048] Please refer to Figure 11 , is a structural schematic diagram of a fault zone survey system according to an embodiment. The fault zone survey system includes a fault zone survey device 100 , a processor 200 and a fault zone drawing device 300 . A plurality of monitoring points are arranged in the pre-monitoring area, and each monitoring point is equipped with a fault zone survey device 100 for obtaining monitoring data of earthquake precursor signals at different times at the monitoring point in the pre-survey area and the time of the earthquake event occurring within the monitoring time . The processor 200 is configured to receive the monitoring data output by the fault zone surveying device and the time of the occurrence of the seismic event within the monitoring time period, and perform statistics on the monitoring data of the preset time period before the occurrence of the seismic event to obtain statistical data, and based on The statistical data draws a schemati...

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Abstract

The present application discloses a data processing method, survey method and system for fault zone survey. According to the requirements of actual survey accuracy, a plurality of monitoring points are set in the pre-survey area, and the monitoring data of earthquake precursor signals at different times at the monitoring points are monitored. Monitor the occurrence time of the earthquake event within the monitoring time, and collect statistics on the monitoring data in the preset time period before the earthquake event, so as to draw a schematic diagram of the distribution of fault zones in the pre-survey area according to the statistical data. This application innovatively proposes a method for the distribution of fault zones based on correlation analysis of seismic events and earthquake precursor signals, and because the survey method does not need to cause any damage to the surface and buildings near the measured point, it can not only locate fault zones in the field, but also The fault zone can be accurately located in the city and then the survey of the fault zone can be carried out in the city, so the non-destructive survey can be realized while improving the survey accuracy of the fault zone.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to a data processing method, surveying method and system for fault zone surveying. 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 m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/24G01V1/28G01V1/30
CPCG01V1/24G01V1/28G01V1/301
Inventor 雍珊珊王新安刘聪李丹吕孟轩何春舅
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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