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Method for determining position of shallow buried coal field fire source through surface anomalies

An abnormal and surface technology, which is applied to the determination of fire sources in shallow buried coal fields, can solve problems such as inability to detect deep fire sources, and achieve the effects of shortening treatment time, low cost, and improving effect.

Inactive Publication Date: 2016-02-17
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0022] The existing isotope radon measurement method, infrared ground temperature measurement method, natural electric field method, magnetic anomaly method, etc. can only detect the plane position of the fire source, but cannot detect the depth of the fire source

Method used

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  • Method for determining position of shallow buried coal field fire source through surface anomalies
  • Method for determining position of shallow buried coal field fire source through surface anomalies
  • Method for determining position of shallow buried coal field fire source through surface anomalies

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Embodiment Construction

[0041] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0042] see figure 1 , a method of using surface anomalies to determine the location of fire sources in shallow buried coalfields, the specific steps are as follows:

[0043] (1) Surface anomaly survey: through the survey of coalfield surface anomalies, through handheld GPS positioning, infrared imager, field photo description, and ground thermometer temperature measurement, the coordinates, elevations, and positions of the survey points are described; the coalfield surface anomalies Including surface outcrop burning, surface thermal field anomalies, smoke, ground subsidence and fissures;

[0044] (2) Determining the abnormal area: collect data on various ground anomalies surveyed, and then draw the subsidence fissure area, thermal field abnormal area, outcrop burning area and smoke abnormal area;

[0045] (3) Arrangement of detection holes: Arran...

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Abstract

The invention discloses a method for determining the position of a shallow buried coal field fire source through surface anomalies. The method comprises the specific steps of surveying the surface anomalies, determining an abnormal area, arranging probe holes and verifying the positions of the probe holes. In the process of surveying the surface anomalies, the coordinates, elevation and position of a survey point are described through surveying of the coal field surface anomalies, handheld GPS positioning, an infrared imager, description of field pictures and temperature measurement of a ground temperature meter. The method is low in cost and fast and accurate in positioning, two fire source detecting methods are comprehensively applied, surface anomaly feature detection is combined with probe hole verification, and a fire source detection result is more accurate and reliable. The dimensionality of a traditional fire area detection result is expanded through the probe holes, detection drilled holes are used for verification, the depth of the fire source can be determined through temperature in the drilled holes and other information, the three-dimensional position of the fire source can be determined, the effect of fire area treatment can be improved, and treatment time is shortened.

Description

technical field [0001] The invention relates to a method for determining the fire source of a shallow buried coal field, in particular to a method for determining the position of a fire source of a shallow buried coal field by using an abnormality on the surface. Background technique [0002] (1) The geological movement of the earth caused the coal seam that was originally deep in the bottom layer to be lifted to the surface, and the randomness of the geological movement may result in the formation of inclined or steeply inclined coal seams. Some coal seams form coal seam outcrops that are exposed to the air. This increases the probability of contact with oxygen, making it easier to be oxidized, and when certain heat storage conditions are met, oxidation-reduction reactions will occur, causing spontaneous combustion of the coal seam. [0003] (2) Many coal seam fires occur in small coal mine mining areas. This is due to the serious phenomenon of illegal excavation and priva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 王俊峰刘硕王涌宇邬剑明
Owner TAIYUAN UNIV OF TECH
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