CN113805248B - Comprehensive detection method for spontaneous combustion area of coal mine - Google Patents
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 124
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 124
- 238000001514 detection method Methods 0.000 title claims abstract description 64
- 239000003245 coal Substances 0.000 title claims abstract description 36
- 238000005457 optimization Methods 0.000 claims abstract description 9
- 229910052704 radon Inorganic materials 0.000 claims description 24
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 19
- 238000009529 body temperature measurement Methods 0.000 claims description 15
- 230000001052 transient effect Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 8
- 238000003892 spreading Methods 0.000 claims description 6
- 238000005065 mining Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 12
- 238000009826 distribution Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005358 geomagnetic field Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/26—Passive interrogation, i.e. by measuring radiation emitted by objects or goods
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Abstract
The invention discloses a comprehensive detection method for a spontaneous combustion area of a coal mine, which comprises the following steps: detecting the ground surface of a to-be-detected area based on different types of full-area spontaneous combustion area detection devices to obtain a plurality of corresponding primary spontaneous combustion target areas; and carrying out comprehensive optimization on a plurality of primary spontaneous combustion target areas based on a preset comprehensive optimization rule to obtain a secondary spontaneous combustion target area. Wherein the secondary autoignition target zone does not exceed the extent of any primary autoignition target zone; and detecting the to-be-detected area sequentially according to the sequence of the correspondingly arranged measuring net sizes from large to small based on the detection devices of the different types of local areas from the spontaneous combustion areas, and finally obtaining the final spontaneous combustion target area. The local area spontaneous combustion area detection device for detecting first is used for detecting the secondary spontaneous combustion target area, and the rest is used for detecting the spontaneous combustion target area obtained by the last detection. The invention adopts a multistage detection mode to gradually reduce the range of the fire zone, thereby not only reducing the cost of operation implementation, but also greatly improving the detection accuracy and reliability.
Description
Technical Field
The invention relates to the field of coal mine fireproof, in particular to a comprehensive detection method for a spontaneous combustion area of a coal mine.
Background
Coal field fire refers to the phenomenon of spontaneous combustion of coal, namely underground coal fire or coal fire, which develops gradually along a coal seam and forms a certain scale after spontaneous combustion of underground coal bodies occurs and is harmful to coal resources, mine production and ecological environment.
In the current common coal fire detection technology, the problems of overlarge manpower and material consumption, low detection resolution, limited objective conditions and the like exist. Therefore, the current coal fire detection technology cannot accurately and efficiently detect the coal field fire area.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a comprehensive detection method for the spontaneous combustion area of the coal mine, which gradually reduces the range of the spontaneous combustion area by adopting a multi-stage detection mode, has low cost, high detection accuracy and wide practicability.
The invention discloses a comprehensive detection method for a spontaneous combustion area of a coal mine, which comprises the following steps:
s1: and detecting the ground surface to be detected based on different types of full-area spontaneous combustion area detection devices to obtain a plurality of corresponding primary spontaneous combustion target areas.
S2: based on a preset comprehensive optimization rule, comprehensively optimizing the primary spontaneous combustion target areas to obtain a secondary spontaneous combustion target area; wherein the secondary autoignition target zone does not exceed the extent of any of the primary autoignition target zones.
S3: detecting the to-be-detected area sequentially according to the sequence from large to small of the corresponding measuring net sizes based on the local area spontaneous combustion area detection devices of different types, and finally obtaining a final spontaneous combustion target area; the local area spontaneous combustion zone detection device which detects first is used for detecting the secondary spontaneous combustion target zone, and the rest local area spontaneous combustion zone detection devices are used for detecting the spontaneous combustion target zone obtained by the local area spontaneous combustion zone detection device.
Further, the step S1 includes:
detecting the ground surface of the to-be-detected area by adopting an unmanned aerial vehicle infrared temperature measuring device to determine an infrared temperature measuring spontaneous combustion target area;
and performing magnetic exploration on the ground to be detected by using a magnetic exploration device to determine a spontaneous combustion target area of the magnetic exploration.
Further, the unmanned aerial vehicle infrared temperature measuring device is adopted to detect the earth surface to be measured to determine the infrared temperature measuring spontaneous combustion target area, and the method comprises the following steps:
and setting a measuring point in the region to be measured, setting an automatic flight route based on the measuring point, controlling the unmanned aerial vehicle with the infrared sensor to fly according to the automatic flight route, and processing and analyzing the acquired temperature measurement data to obtain the infrared temperature measurement spontaneous combustion target region.
Further, the method for detecting the ground surface to be detected by the unmanned aerial vehicle infrared temperature measuring device to determine the infrared temperature measuring spontaneous combustion target area comprises the following steps: the unmanned aerial vehicle infrared temperature measuring device detects the earth surface of a to-be-measured area according to a measuring network of 2 x 2m to determine an infrared temperature measuring spontaneous combustion target area.
The method for determining the spontaneous combustion target area by magnetic exploration by adopting the magnetic exploration device to perform magnetic exploration on the ground to be detected comprises the following steps: and the magnetic exploration device performs magnetic exploration on the ground to be detected according to a 20 m-20 m measuring network to determine a spontaneous combustion target area of the magnetic exploration.
Further, the step S2 includes:
and selecting an intersection part of the infrared temperature measurement spontaneous combustion target area and the magnetic prospecting spontaneous combustion target area as a secondary spontaneous combustion target area.
Further, an isotope radon measuring device, a high-density electric device and a transient electromagnetic exploration device are adopted, and the detection is carried out on the to-be-detected area according to the sequence of the corresponding measuring net sizes from large to small, so that the final spontaneous combustion target area is finally obtained.
Further, the isotope radon measuring device is adopted to detect the secondary spontaneous combustion target area according to a 20m x 10m measuring net, and a tertiary spontaneous combustion target area is obtained;
detecting the three-level spontaneous combustion target area by adopting the high-density electric device according to a measuring network of 10m x 10m to obtain a four-level spontaneous combustion target area;
and detecting the four-stage spontaneous combustion target area by adopting the transient electromagnetic exploration device according to a 10m 5m measuring network to obtain a final stage spontaneous combustion target area.
Further, the method further comprises:
and re-optimizing the final spontaneous combustion target zone based on stratum information of the coal field area to be tested, fracture structure spreading characteristic information, mining information of a mine goaf, basic parameter characteristic data of high-temperature coal and rock mass, ignition and spreading characteristic information of the regional coal field fire zone.
The invention has at least the following beneficial effects:
the invention adopts a multistage detection mode to gradually reduce the range of the fire zone, firstly adopts a full-area spontaneous combustion zone detection device with larger coverage area, high efficiency and low cost to detect and optimize to obtain a secondary spontaneous combustion target zone, and further adopts a local area spontaneous combustion zone detection device to carry out multistage progressive detection on the basis of the range.
Other advantageous effects of the present invention will be described in detail in the detailed description section.
Drawings
FIG. 1 is a flow chart of a method for comprehensive detection of spontaneous combustion areas in a coal mine, disclosed in a preferred embodiment of the invention.
FIG. 2 is a graph of measured delta T magnetic anomaly contours and point location information for a work area in accordance with a preferred embodiment of the present invention.
FIG. 3 is a delta T contour plot and point location information of post-chemical-pole magnetic anomalies as disclosed in a preferred embodiment of the present invention.
FIG. 4 is a graph showing radon concentration contour plane distribution disclosed in a preferred embodiment of the present invention.
FIG. 5 is a perspective view of radon outlier distribution disclosed in a preferred embodiment of the present invention.
FIG. 6 is a schematic cross sectional view of apparent resistivity in accordance with a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
As shown in fig. 1, the invention discloses a comprehensive detection method for a spontaneous combustion area of a coal mine, which comprises the following steps:
s1: and detecting the ground surface to be detected based on different types of full-area spontaneous combustion area detection devices to obtain a plurality of corresponding primary spontaneous combustion target areas. The full-area spontaneous combustion region detection device preferably uses a device with higher detection speed and lower cost, and the primary spontaneous combustion target region is obtained by detecting the device as quickly and efficiently as possible.
S2: based on a preset comprehensive optimization rule, comprehensively optimizing the primary spontaneous combustion target areas to obtain a secondary spontaneous combustion target area; wherein the secondary autoignition target zone does not exceed the extent of any of the primary autoignition target zones. The step aims at further narrowing the range of the fire zone, the comprehensive optimization rule can be preset and stored, and when the secondary spontaneous combustion target zone needs to be calculated, the comprehensive optimization rule is called and the primary spontaneous combustion target zones are subjected to operations comprising combination, deletion, addition and the like based on the comprehensive optimization rule, so that the secondary spontaneous combustion target zone is obtained.
S3: detecting the to-be-detected area sequentially according to the sequence from large to small of the corresponding measuring net sizes based on the local area spontaneous combustion area detection devices of different types, and finally obtaining a final spontaneous combustion target area; the local area spontaneous combustion zone detection device which detects first is used for detecting the secondary spontaneous combustion target zone, and the rest local area spontaneous combustion zone detection devices are used for detecting the spontaneous combustion target zone obtained by the local area spontaneous combustion zone detection device.
The adoption of a single type of detection device can not take all objective conditions of a to-be-detected area into consideration, so that a plurality of different types of detection devices can detect the to-be-detected area respectively or step by step, and error information is eliminated, so that the accuracy and the reliability of detection results are ensured. For the above-mentioned respective fire area detection device, the corresponding measuring net is set, and the measuring net may be composed of several measuring points, and obviously, the closer the measuring points are, the smaller the measuring net size is, the more accurate the range and boundary of the spontaneous combustion target area obtained by measurement are, but in actual detection operation, too dense measurement may cause problems of too large cost, too large detection information amount, lower efficiency and the like, but through progressively searching small detection range and measuring net size, under the condition of ensuring accurate result, the operation efficiency is improved as much as possible, and the operation cost is reduced.
In some embodiments of the invention, the full area fire zone detection device comprises at least two of: an unmanned aerial vehicle infrared temperature measuring device and a magnetic prospecting device. Thus, the step S1 includes: detecting the ground surface of the to-be-detected area by adopting an unmanned aerial vehicle infrared temperature measuring device to determine an infrared temperature measuring spontaneous combustion target area; and performing magnetic exploration on the ground to be detected by using a magnetic exploration device to determine a spontaneous combustion target area of the magnetic exploration. The measurement network size of the unmanned aerial vehicle infrared temperature measuring device is preferably 2m, and the measurement network size of the magnetic force exploration device is preferably 20m, 20m.
The implementation process of the unmanned aerial vehicle infrared temperature measuring device comprises the following steps: and setting a measuring point in the region to be measured, setting an automatic flight route based on the measuring point, controlling the unmanned aerial vehicle with the infrared sensor to fly according to the automatic flight route, and processing and analyzing the acquired temperature measurement data to obtain the infrared temperature measurement spontaneous combustion target region.
The invention discloses a preferred embodiment of an infrared temperature measuring device of an unmanned aerial vehicle. And carrying out infrared temperature measurement detection of the unmanned aerial vehicle on the ground surface of the fire area of the coal field, guiding the topographic data and the distribution of the temperature points to be measured into an instrument, calculating a flight route, and realizing a temperature measurement process through a temperature detection module carried on the unmanned aerial vehicle.
The magnetic prospecting device can perform magnetic prospecting, specifically, the magnetic prospecting is to observe magnetic field total magnetic abnormality of stratum by using proton magnetometer, extract effective magnetic abnormal field information from background magnetic field, further eliminate processing and conversion of influence of non-detection target body in a targeted manner, perform filtering processing and inversion interpretation of data on the basis, and reasonably presume high temperature fire area of coal field by combining with other information sources such as geology, topography and the like.
The invention discloses a preferred embodiment of a magnetic prospecting device. Two GSM-19T magnetometers were used. First, a solar station is installed in a region where a magnetic field selected in advance is relatively stable, and solar measurement is performed. The T0 value measurement was made at about 20m near the daily transition station for a period of time during which the daily transition was stationary before sunrise. The T0 value in this region was measured to be 52145.92nT. Another GSM-19T magnetometer was used to measure the magnetic field at all points in the zone. The height of the GSM-19T probe is fixed to be four sections of probe rods, and the height is 1.83m. The magnetic field contour map and the dot position information are shown in fig. 2 (in actual operation, the map is a color picture). Wherein the measuring points are represented by black triangles, the black numbers on the left side represent the line numbers of the measuring lines, and the numbers on the right side represent the point numbers. The magnetic field information of the measuring points 1 to 7 of the 1 to 6 measuring lines is missing, and the missing part is filled by using a kriging interpolation method so as to facilitate the subsequent data processing. According to the IGRF model, the geomagnetic field inclination angle i=53.8°, and the magnetic field bias angle d= -6.4 ° in the measurement region are calculated. Because the measuring work area is smaller, the geomagnetic fields at all measuring points can be considered to have the same magnetization inclination and deflection. Because the work area is in a middle latitude area, the oblique magnetization can cause positive and negative magnetic anomalies to deviate from the theoretical perpendicular magnetization position. For convenience of data processing and interpretation, pole-eliminating processing is performed on the magnetic anomalies, and a post-pole-eliminating magnetic anomaly DeltaT contour map can be obtained, see FIG. 2 (the map is a color picture in actual operation).
In some embodiments of the invention, the step S2 includes: and selecting an intersection part of the infrared temperature measurement spontaneous combustion target area and the magnetic prospecting spontaneous combustion target area as a secondary spontaneous combustion target area.
In some embodiments of the invention, an isotope radon measuring device, a high-density electric device and a transient electromagnetic exploration device are adopted, and the detection is carried out on the to-be-detected area according to the sequence of the respectively corresponding measuring net sizes from large to small, so that the final spontaneous combustion target area is finally obtained. The size of each detection net can be set according to actual needs, and the detection sequence of the three detection devices is determined by the size of the net, that is to say, the detection using sequence of the three detection devices can be changed by changing or adjusting the size of the net.
The isotope radon measuring device can be suitable for an isotope radon measuring method, and radon detection is carried out on a high-temperature area of a goaf covered on a shallow buried depth. After measurement is completed, the data are processed and analyzed by contour line professional software, a high-temperature area in a detection area is finally determined, and then the radon concentration on-site test data, the radon concentration contour map and radon concentration values obtained by experimental known points are combined as references to calibrate out an area with higher relative concentration as a suspected spontaneous combustion ignition area of the mine.
The high-density electric device is suitable for detection by a high-density electric method, and specifically, tens to hundreds of electrodes are distributed on measuring points at a time at certain intervals, power is supplied to the underground through power supply electrodes A, B, potential difference is observed by using electrodes M, N, the instrument automatically converts power supply and electrode position measurement in the measuring process, the resistivity of the whole section of an underground medium point is measured, and finally, acquired data are inverted to achieve accurate identification of fire area boundaries.
The transient electromagnetic exploration device is suitable for transient electromagnetic exploration, and specifically is a method for detecting the resistivity of a medium by utilizing an ungrounded loop or a grounding wire source to emit a primary pulse magnetic field to the underground and utilizing a coil or a grounding electrode to observe a secondary induction vortex field caused in the underground medium during the intermittence of the primary pulse magnetic field. The data acquisition device is divided into a transmitting part and a receiving part. The transmitting part is paved with 100 turns 40m x 40m transmitting frames for transmitting current 10A and transmitting frequency 2.5Hz; the receiving part adopts an observation time window of 0.1 ms-47.5 ms, the superposition times are 256, and the observation time is 3-5min. The acquired induced electromotive force is calculated through a skin depth formula to obtain apparent resistivity, and finally, a cross section diagram for apparent resistivity inversion is obtained through data inversion, and data interpretation is carried out.
In some embodiments of the invention, the isotope radon measuring device is adopted to detect the secondary spontaneous combustion target area according to a measuring network of 20m x 10m to obtain a tertiary spontaneous combustion target area; detecting the three-level spontaneous combustion target area by adopting the high-density electric device according to a measuring network of 10m x 10m to obtain a four-level spontaneous combustion target area; and detecting the four-stage spontaneous combustion target area by adopting the transient electromagnetic exploration device according to a 10m 5m measuring network to obtain a final stage spontaneous combustion target area.
The invention also discloses a preferred embodiment of the isotope radon measuring device. Lofting is carried out according to the designed points, the points required by radon measurement are found, then a drilling machine is used for drilling holes, then the cup is buried in a reverse buckling mode, and marks are made. And (5) taking the cup after burying the cup for 4 hours, rapidly measuring for 3 minutes, and recording data after measuring. If abnormal measurement is found, the measurement points need to be supplemented. Through testing, 90 points are measured in total, and are processed by using a buffer, and are overlapped with an upper comparison chart and a lower comparison chart of a well, a radon concentration contour chart is shown in fig. 4, a radon value distribution three-dimensional perspective chart is shown in fig. 5, and the radon concentration of the whole mining area is stable. As can be seen from FIGS. 4 and 5, the radon concentration in the A region, the B region and the C region is higher than that in other regions, the A region is a 25m×50m rectangle composed of measuring points L3-08, L4-08, L3-10 and L4-10, the area is about 1250m2, the B region is a 25m×10m rectangle centered on measuring points L8-08 and L9-08, the area is about 250m2, and the C region is a 25m×10m rectangle centered on measuring points L6-10 and L7-10. The center coordinates, area, maximum value of radon and average value of the suspected fire area are shown in table 1.
TABLE 1 suspected fire zone parameter Table
In summary, the radon value of the A region, the B region and the C region is generally higher than that of other positions, and the radon value is a suspected high-temperature region.
Preferred embodiments of the high density electrical device are also disclosed. In the last step, the ground high-density electrical prospecting is carried out within the range of the spontaneous combustion target area reduced by the method, a measuring net is arranged to be 10m multiplied by 10m, the emission voltage is 256V, the minimum isolation coefficient is 60, the parameters of the temperature device are collected, and the abnormal information is extracted through the ascertained resistivity distribution characteristics of the underground fire area, so that the target area range is reduced.
The invention discloses a preferred embodiment of a transient electromagnetic surveying device. 363 transient electromagnetic measuring points are distributed in the coal mine fire area. The transmitting part is paved with 100 turns 40m x 40m transmitting frames for transmitting current 10A and transmitting frequency 2.5Hz; the receiving part adopts an observation time window of 0.1 ms-47.5 ms, the superposition times are 256, and the observation time is 3-5min. The apparent resistivity is obtained after the acquired induced electromotive force is calculated by a skin depth formula, and finally, the result data is divided into main through data inversion, and the detail is shown in fig. 6.
In the figure, a red area (an oval area which is surrounded by a line with the number 130 and is positioned at the center), namely an area with apparent resistivity larger than or equal to 130 omega.m, is judged to be a suspected fire area, and after verification, the suspected fire area is matched in position, so that an important basis is provided for subsequent fire prevention and extinguishment.
In some embodiments of the invention, the method further comprises: based on the environmental information and spontaneous combustion characteristic information of the to-be-detected area, establishing an electromagnetic field dynamic distribution model in the high-temperature fire area evolution process; and identifying the final spontaneous combustion target zone based on the model to obtain fire zone boundary information.
Preferably, on the basis of the spontaneous combustion target areas divided by the methods, the range and the boundary of the spontaneous combustion target areas are adjusted and optimized by combining the information of stratum information of coal fields, fracture structure spreading characteristics, mining information of mine goafs, basic parameter characteristic data of high-temperature coal and rock masses, ignition and spreading characteristics of regional coal fields and fire areas and the like, so that scientific optimization of the range excluding parts which obviously do not belong to the spontaneous combustion regions and the like can be realized, and finally, a position range with higher accuracy is obtained, and accurate identification of the high-temperature fire areas and the boundary is realized.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (5)
1. The comprehensive detection method for the spontaneous combustion area of the coal mine is characterized by comprising the following steps of:
s1: detecting the ground surface of a to-be-detected area based on different types of full-area spontaneous combustion area detection devices to obtain a plurality of corresponding primary spontaneous combustion target areas;
s2: based on a preset comprehensive optimization rule, comprehensively optimizing the primary spontaneous combustion target areas to obtain a secondary spontaneous combustion target area; wherein the secondary autoignition target zone does not exceed the extent of any of the primary autoignition target zones;
s3: detecting a to-be-detected area by adopting an isotope radon measuring device, a high-density electric device and a transient electromagnetic exploration device according to the sequence of the corresponding measuring net sizes from large to small, and finally obtaining a final spontaneous combustion target area; the isotope radon measuring device which is firstly detected is used for detecting the secondary spontaneous combustion target area to obtain a tertiary spontaneous combustion target area, the high-density electric device is used for detecting the tertiary spontaneous combustion target area to obtain a quaternary spontaneous combustion target area, and the transient electromagnetic exploration device is used for detecting the quaternary spontaneous combustion target area to obtain the final spontaneous combustion target area;
the step S1 includes:
detecting the ground surface of the to-be-detected area by adopting an unmanned aerial vehicle infrared temperature measuring device to determine an infrared temperature measuring spontaneous combustion target area;
performing magnetic exploration on the ground to be detected by using a magnetic exploration device to determine a spontaneous combustion target area of the magnetic exploration;
the step S2 includes:
and selecting an intersection part of the infrared temperature measurement spontaneous combustion target area and the magnetic prospecting spontaneous combustion target area as a secondary spontaneous combustion target area.
2. The comprehensive detection method for spontaneous combustion areas of coal mines according to claim 1, wherein the detection of the ground surface to be detected by using an unmanned aerial vehicle infrared temperature measurement device is used for determining an infrared temperature measurement spontaneous combustion target area, and the method comprises the following steps:
and setting a measuring point in the region to be measured, setting an automatic flight route based on the measuring point, controlling the unmanned aerial vehicle with the infrared sensor to fly according to the automatic flight route, and processing and analyzing the acquired temperature measurement data to obtain the infrared temperature measurement spontaneous combustion target region.
3. The comprehensive detection method for spontaneous combustion areas of coal mines according to claim 1, wherein the detection of the ground surface to be detected by using the unmanned aerial vehicle infrared temperature measurement device to determine the infrared temperature measurement spontaneous combustion target area comprises the following steps:
the unmanned aerial vehicle infrared temperature measuring device detects the ground surface of the to-be-measured area according to a measuring network of 2 x 2m to determine an infrared temperature measuring spontaneous combustion target area;
the method for determining the spontaneous combustion target area by magnetic exploration by adopting the magnetic exploration device to perform magnetic exploration on the ground to be detected comprises the following steps:
and the magnetic exploration device performs magnetic exploration on the ground to be detected according to a 20 m-20 m measuring network to determine a spontaneous combustion target area of the magnetic exploration.
4. The comprehensive detection method for spontaneous combustion areas of coal mines according to claim 1, wherein in the step S3, the isotope radon measuring device detects the secondary spontaneous combustion target area according to a measuring network of 20m x 10m to obtain a tertiary spontaneous combustion target area; the high-density electric device detects the three-level spontaneous combustion target area according to a measuring network of 10m x 10m to obtain a four-level spontaneous combustion target area; the transient electromagnetic exploration device detects the four-stage spontaneous combustion target area according to a 10m 5m measuring net to obtain the final-stage spontaneous combustion target area.
5. The method for comprehensive detection of spontaneous combustion areas in coal mines according to any one of claims 1 to 4, further comprising:
and re-optimizing the final spontaneous combustion target zone based on stratum information of the coal field area to be tested, fracture structure spreading characteristic information, mining information of a mine goaf, basic parameter characteristic data of high-temperature coal and rock mass, ignition and spreading characteristic information of the regional coal field fire zone.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2365759C1 (en) * | 2008-03-04 | 2009-08-27 | Анатолий Янович Каминский | Estimation method of endogenous fire hazard of sheths |
| CN102508309A (en) * | 2011-10-31 | 2012-06-20 | 中国矿业大学 | Method for detecting coal field fire district distribution range |
| CN103605987A (en) * | 2013-11-29 | 2014-02-26 | 中国神华能源股份有限公司 | Coal field fire area determining method and device |
| RU2631516C1 (en) * | 2016-06-29 | 2017-09-25 | АКЦИОНЕРНОЕ ОБЩЕСТВО "НАУЧНЫЙ ЦЕНТР ВОСТНИИ ПО БЕЗОПАСНОСТИ РАБОТ В ГОРНОЙ ПРОМЫШЛЕННОСТИ" (АО "НЦ ВостНИИ") | Method for detecting underground fires |
| RU2642202C1 (en) * | 2016-06-08 | 2018-01-24 | Владимир Васильевич Чернявец | Unmanned vehicle and surveillance complex for it |
| CN107780971A (en) * | 2017-10-20 | 2018-03-09 | 新疆维吾尔自治区煤田灭火工程局 | A kind of magnetoelectricity heat becomes the coal-field fire detection method in source step by step |
| CN107843939A (en) * | 2017-10-24 | 2018-03-27 | 防灾科技学院 | Coal fire recognition methods based on unmanned plane thermal infrared imagery |
| CN109581513A (en) * | 2018-12-25 | 2019-04-05 | 核工业北京地质研究院 | A kind of Formation of Sandstone-type Uranium Deposits ore target location method based on multi-spatial scale |
| WO2019200821A1 (en) * | 2018-04-18 | 2019-10-24 | 中国矿业大学 | Temperature measuring-while-drilling apparatus for detecting autoignition temperature of coal |
| CN110748381A (en) * | 2019-09-20 | 2020-02-04 | 山东科技大学 | Method and system for acoustic detection of high-temperature fire zone position of goaf under coal mine |
| CN110761840A (en) * | 2019-09-20 | 2020-02-07 | 山东科技大学 | Coal mine goaf fire zone detection system and method based on infrasonic wave information transmission |
| CN112255693A (en) * | 2020-10-20 | 2021-01-22 | 陕西煤业化工技术研究院有限责任公司 | Goaf filling space detection method under coal mine fully mechanized caving coal mining process condition |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111368782B (en) * | 2020-03-16 | 2023-11-14 | 中移雄安信息通信科技有限公司 | Training method of coal fire area recognition model, and coal fire area recognition method and device |
| CN111563957B (en) * | 2020-05-06 | 2023-03-31 | 中国矿业大学 | Three-dimensional temperature field digital imaging method for coal field fire and gangue dump fire |
-
2021
- 2021-08-06 CN CN202110903751.4A patent/CN113805248B/en active Active
-
2022
- 2022-03-29 AU AU2022202145A patent/AU2022202145B2/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2365759C1 (en) * | 2008-03-04 | 2009-08-27 | Анатолий Янович Каминский | Estimation method of endogenous fire hazard of sheths |
| CN102508309A (en) * | 2011-10-31 | 2012-06-20 | 中国矿业大学 | Method for detecting coal field fire district distribution range |
| CN103605987A (en) * | 2013-11-29 | 2014-02-26 | 中国神华能源股份有限公司 | Coal field fire area determining method and device |
| RU2642202C1 (en) * | 2016-06-08 | 2018-01-24 | Владимир Васильевич Чернявец | Unmanned vehicle and surveillance complex for it |
| RU2631516C1 (en) * | 2016-06-29 | 2017-09-25 | АКЦИОНЕРНОЕ ОБЩЕСТВО "НАУЧНЫЙ ЦЕНТР ВОСТНИИ ПО БЕЗОПАСНОСТИ РАБОТ В ГОРНОЙ ПРОМЫШЛЕННОСТИ" (АО "НЦ ВостНИИ") | Method for detecting underground fires |
| CN107780971A (en) * | 2017-10-20 | 2018-03-09 | 新疆维吾尔自治区煤田灭火工程局 | A kind of magnetoelectricity heat becomes the coal-field fire detection method in source step by step |
| CN107843939A (en) * | 2017-10-24 | 2018-03-27 | 防灾科技学院 | Coal fire recognition methods based on unmanned plane thermal infrared imagery |
| WO2019200821A1 (en) * | 2018-04-18 | 2019-10-24 | 中国矿业大学 | Temperature measuring-while-drilling apparatus for detecting autoignition temperature of coal |
| CN109581513A (en) * | 2018-12-25 | 2019-04-05 | 核工业北京地质研究院 | A kind of Formation of Sandstone-type Uranium Deposits ore target location method based on multi-spatial scale |
| CN110748381A (en) * | 2019-09-20 | 2020-02-04 | 山东科技大学 | Method and system for acoustic detection of high-temperature fire zone position of goaf under coal mine |
| CN110761840A (en) * | 2019-09-20 | 2020-02-07 | 山东科技大学 | Coal mine goaf fire zone detection system and method based on infrasonic wave information transmission |
| CN112255693A (en) * | 2020-10-20 | 2021-01-22 | 陕西煤业化工技术研究院有限责任公司 | Goaf filling space detection method under coal mine fully mechanized caving coal mining process condition |
Non-Patent Citations (11)
| Title |
|---|
| Detecting concealed fire sources in coalfield fires：An application study;Bin Du，Yuntao Liang，Fuchao Tian;Fire Safety Journal;第第121卷卷;103298第1-8页 * |
| firefighting of subsurface coal fires with comprehensive techniques for detection and control：a case study of the FuKang coal fire in the Xinjiang region of China;Bo Tan等;Environment Science and Pollution Research;第26卷(第29期);第570-584页 * |
| 我国煤矿火灾防治现状及发展对策;梁运涛等;煤炭科学技术;第44卷(第06期);第1-7页 * |
| 托克逊乌尊布拉克火区综合勘查技术应用;孙景龙等;煤炭与化工;第41卷(第06期);第48-49页 * |
| 新疆煤田火烧区特征及灭火问题探讨;张秀山;中国煤田地质;第16卷(第01期);第18-21页 * |
| 煤田火灾探测方法研究进展;邵振鲁;王德明;王雁鸣;;煤矿安全(第08期);第189-192页 * |
| 煤自燃危险区域磁法判定技术及应用;许满贵等;矿业安全与环保;第41卷(第02期);第41-44页 * |
| 物探方法在煤矿地下火区探测中的应用;林金波等;现代矿业(第12期);第69-70页 * |
| 现代勘查技术在蒙东地区煤炭火区中的应用;吉宏泰;梁璐;;金属矿山(第04期);第186-190页 * |
| 综合物探在内蒙某煤矿火区范围圈定中的应用;王立虎;;宁夏工程技术(第04期);第372-375页 * |
| 鄂尔多斯浅层煤矿煤火区探测方法;郭刚;贾继标;黄丹青;李大伟;郭洪信;;煤矿安全;第44卷(第09期);第137-139页 * |
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| AU2022202145B2 (en) | 2023-04-27 |
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