CN104407006A - Infrared test method for exploring water conducting passage of rock fracture - Google Patents
Infrared test method for exploring water conducting passage of rock fracture Download PDFInfo
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- CN104407006A CN104407006A CN201410717895.0A CN201410717895A CN104407006A CN 104407006 A CN104407006 A CN 104407006A CN 201410717895 A CN201410717895 A CN 201410717895A CN 104407006 A CN104407006 A CN 104407006A
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- rock mass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
The invention discloses an infrared test method for exploring a water conducting passage of a rock fracture. The method is suitable for researching the developments of the water conducting fracture of rock and exploring the developing law of the fracture in other solid mediums. The method comprises the following steps: firstly illuminating the monitored rock with the water filled fracture by utilizing an infrared radiation source, and then collecting the infrared radiation information of the monitored rock by utilizing an infrared radiation collecting device. The collected infrared radiation information is transmitted to an electronic signal treating device through a data line, and a treated electronic signal is transformed to intuition visible image information so as to directly observe a distribution situation of the water filled fracture of the rock. The method has the advantages that the operation is simple, and the information of the water conducting fracture of the rock can be intuitively reflected in a visible image, so that the method has the maneuverability of exploring a developmental condition of the fracture in the rock, and the method has extensive practicality.
Description
Technical field
The present invention relates to the infrared test method of a kind of detecting rock crack conduit pipe, belong to coal water-retaining production technology.
Background technology
In recent years, along with the center of gravity of coal in China exploitation shifts to west area, the ecologic environment of coal mining to west area fragility causes serious destruction, especially coal mining causes subsidence to cause the loss of surface water, directly cause that vegetation is dead, desertification increases the weight of, coal water-retaining production is taked in an urgent demand.Although scholar has done large quantity research to water-retaining production, good detection means also be there is no to the inducement of these inherences of distribution of the growth of rock mass internal crack, conduit pipe.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the infrared test method of simple, the workable detecting rock crack conduit pipe of a kind of operation.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
The infrared test method of a kind of detecting rock crack conduit pipe, first directly arrange that one deck water is to simulate the water-bearing zone on rock mass top on the rock mass top not by mining influence, then by thermal infrared imager, the infrared image that this Mining in Rock Mass moves front and back is gathered, the last phenomenon that there is notable difference according to the infrared radiation value of water and the infrared radiation value of rock mass, analyzes the distribution situation drawing rock cranny conduit pipe.
The present invention directly puts water on rock mass top, ensure that the real-time and continuation of infiltrating crack.
The method specifically comprises the steps:
(1) directly arrange that one deck water is to simulate the water-bearing zone on rock mass top on the rock mass top not by mining influence;
(2) thermal infrared imager is rack-mount, regulate the camera lens of thermal infrared imager, make its center aiming at rock mass and temporarily fix;
(3) connect power supply and data line, open data processor, display screen and thermal infrared imager;
(4) infrared image of the rock mass monitored by thermal infrared imager shown by display screen is observed, and the position of thermal infrared imager and support is regulated according to the infrared image of display, until the infrared image shown by display screen is regular, clear, fixing thermal infrared imager now and support, and the infrared image stored now move as Mining in Rock Mass before infrared image;
(5) mining influence is carried out to rock mass, along with the increasing of mining influence degree, rock mass fracture growth, the upper seepage flow being positioned at rock mass top enters crack; Infrared image after the infrared image stored now moves as Mining in Rock Mass;
(6) to Mining in Rock Mass move before and after infrared image contrast, draw the distribution situation of rock cranny conduit pipe.
Infrared image before and after moving Mining in Rock Mass contrasts, and draws the distribution situation of rock cranny conduit pipe, specifically comprises the steps:
1. the infrared image before and after moving Mining in Rock Mass respectively adopts Threshold Denoising method to carry out noise reduction, function ddencmp is adopted to obtain noise reduction default value, be specially: use function wdencmp as the guiding function of 2-d wavelet noise reduction, and adopt db3 wavelet that " image D " is decomposed into 3 layers, obtain the wavelet coefficient that db3 wavelet decomposes rear each layer, the wavelet coefficient being greater than or less than threshold value is processed respectively, the image after utilizing the wavelet coefficient after process to reconstruct noise reduction; Kernel program is as follows:
[thr,sorh,keepapp]＝ddencmp('den','wv',D)；
crit＝'shannon'；
Z＝wpdencmp(d,sorh,3,'db3',crit,thr,keepapp)；
Parameter d en represents denoising, and wv represents small echo, and D representative is containing noisy signal
2. the infrared image after moving the Mining in Rock Mass after noise reduction makes isoline, and with noise reduction after Mining in Rock Mass move before the isoline of infrared image contrast, draw the distribution situation of rock cranny conduit pipe.
Beneficial effect: the infrared test method of detecting rock crack provided by the invention conduit pipe, the direct seepage flow of water is used to enter rock mass water producing fractures, utilize thermal infrared imager to the notable difference of water body and rock mass infrared detective, directly the distribution situation of conduit pipe is intuitively manifested; Simultaneously, although some crack is grown in rock mass, but do not act on playing the part of conduit pipe in practice, the reaction of thermal infrared imager to this part crack and the conduit pipe of actual water-filling has obvious otherness, makes the detection of true conduit pipe more accurate.
Accompanying drawing explanation
Fig. 1 is the connection diagram realizing device of the present invention;
In figure: 1-water, 2-rock mass, 3-support, 4-thermal infrared imager, 5-data processor, 6-display screen.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
The infrared test method of a kind of detecting rock crack conduit pipe, first directly arrange that one deck water is to simulate the water-bearing zone on rock mass top on the rock mass top not by mining influence, then by thermal infrared imager, the infrared image that this Mining in Rock Mass moves front and back is gathered, the last phenomenon that there is notable difference according to the infrared radiation value of water and the infrared radiation value of rock mass, analyzes the distribution situation drawing rock cranny conduit pipe.Be illustrated in figure 1 the experimental provision of the infrared test method of a kind of detecting rock crack conduit pipe, test based on this device, concrete grammar comprises the steps:
(1) directly arrange that one deck water is to simulate the water-bearing zone on rock mass top on the rock mass top not by mining influence;
(2) thermal infrared imager is rack-mount, regulate the camera lens of thermal infrared imager, make its center aiming at rock mass and temporarily fix;
(3) connect power supply and data line, open data processor, display screen and thermal infrared imager;
(4) infrared image of the rock mass monitored by thermal infrared imager shown by display screen is observed, and the position of thermal infrared imager and support is regulated according to the infrared image of display, until the infrared image shown by display screen is regular, clear, fixing thermal infrared imager now and support, and the infrared image stored now move as Mining in Rock Mass before infrared image;
(5) mining influence is carried out to rock mass, along with the increasing of mining influence degree, rock mass fracture growth, the upper seepage flow being positioned at rock mass top enters crack; Infrared image after the infrared image stored now moves as Mining in Rock Mass;
(6) to Mining in Rock Mass move before and after infrared image contrast, draw the distribution situation of rock cranny conduit pipe, be specially:
1. the infrared image before and after moving Mining in Rock Mass respectively adopts Threshold Denoising method to carry out noise reduction, function ddencmp is adopted to obtain noise reduction default value, be specially: use function wdencmp as the guiding function of 2-d wavelet noise reduction, and adopt db3 wavelet that " image D " is decomposed into 3 layers, obtain the wavelet coefficient that db3 wavelet decomposes rear each layer, the wavelet coefficient being greater than or less than threshold value is processed respectively, the image after utilizing the wavelet coefficient after process to reconstruct noise reduction; Kernel program is as follows:
[thr,sorh,keepapp]＝ddencmp('den','wv',D)；
crit＝'shannon'；
Z＝wpdencmp(d,sorh,3,'db3',crit,thr,keepapp)；
Parameter d en represents denoising, and wv represents small echo, and D representative is containing noisy signal
2. the infrared image after moving the Mining in Rock Mass after noise reduction makes isoline, and with noise reduction after Mining in Rock Mass move before the isoline of infrared image contrast, draw the distribution situation of rock cranny conduit pipe.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. the infrared test method of a detecting rock crack conduit pipe, it is characterized in that: first directly arrange that one deck water is to simulate the water-bearing zone on rock mass top on the rock mass top not by mining influence, then by thermal infrared imager, the infrared image that this Mining in Rock Mass moves front and back is gathered, the last phenomenon that there is notable difference according to the infrared radiation value of water and the infrared radiation value of rock mass, analyzes the distribution situation drawing rock cranny conduit pipe.
2. the infrared test method of detecting rock crack according to claim 1 conduit pipe, is characterized in that: the method specifically comprises the steps:
(1) directly arrange that one deck water is to simulate the water-bearing zone on rock mass top on the rock mass top not by mining influence;
(2) thermal infrared imager is rack-mount, regulate the camera lens of thermal infrared imager, make its center aiming at rock mass and temporarily fix;
(3) connect power supply and data line, open data processor, display screen and thermal infrared imager;
(4) infrared image of the rock mass monitored by thermal infrared imager shown by display screen is observed, and the position of thermal infrared imager and support is regulated according to the infrared image of display, until the infrared image shown by display screen is regular, clear, fixing thermal infrared imager now and support, and the infrared image stored now move as Mining in Rock Mass before infrared image;
(5) mining influence is carried out to rock mass, along with the increasing of mining influence degree, rock mass fracture growth, the upper seepage flow being positioned at rock mass top enters crack; Infrared image after the infrared image stored now moves as Mining in Rock Mass;
(6) to Mining in Rock Mass move before and after infrared image contrast, draw the distribution situation of rock cranny conduit pipe.
3. the infrared test method of detecting rock crack according to claim 1 conduit pipe, is characterized in that: the infrared image before and after moving Mining in Rock Mass contrasts, and draws the distribution situation of rock cranny conduit pipe, specifically comprises the steps:
1. the infrared image before and after moving Mining in Rock Mass respectively adopts Threshold Denoising method to carry out noise reduction, function ddencmp is adopted to obtain noise reduction default value, be specially: use function wdencmp as the guiding function of 2-d wavelet noise reduction, and adopt db3 wavelet to be 3 layers by picture breakdown, obtain the wavelet coefficient that db3 wavelet decomposes rear each layer, the wavelet coefficient being greater than or less than threshold value is processed respectively, the image after utilizing the wavelet coefficient after process to reconstruct noise reduction;
2. the infrared image after moving the Mining in Rock Mass after noise reduction makes isoline, and with noise reduction after Mining in Rock Mass move before the isoline of infrared image contrast, draw the distribution situation of rock cranny conduit pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717895.0A CN104407006A (en) | 2014-12-01 | 2014-12-01 | Infrared test method for exploring water conducting passage of rock fracture |
| PCT/CN2015/078728 WO2016086601A1 (en) | 2014-12-01 | 2015-05-12 | Infrared test method for exploring water-conducting passage of rock fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717895.0A CN104407006A (en) | 2014-12-01 | 2014-12-01 | Infrared test method for exploring water conducting passage of rock fracture |
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| CN104407006A true CN104407006A (en) | 2015-03-11 |
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| WO (1) | WO2016086601A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086601A1 (en) * | 2014-12-01 | 2016-06-09 | 中国矿业大学 | Infrared test method for exploring water-conducting passage of rock fracture |
| CN107917927A (en) * | 2017-11-21 | 2018-04-17 | 中国矿业大学(北京) | Monitor the method and experimental provision of rock soil medium Water Transport state |
| CN109696354A (en) * | 2018-12-19 | 2019-04-30 | 昆明理工大学 | A kind of crack rock failure evolvement process intermediate infrared radiation monitoring device and method |
| CN110221036A (en) * | 2018-03-01 | 2019-09-10 | 中国矿业大学 | Water-retaining production " sound emission-infra-red radiation " experimental system with seepage apparatus |
Families Citing this family (6)
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| CN106768838B (en) * | 2016-12-08 | 2023-07-28 | 中铁十四局集团第二工程有限公司 | Device and method for tracking and observing movement of slurry-water phase interface under complex condition |
| CN108562515B (en) * | 2018-03-27 | 2023-11-28 | 东北大学 | Multi-factor test system for crack rock mass grouting slurry diffusion |
| CN112729890A (en) * | 2020-12-31 | 2021-04-30 | 安徽理工大学 | Roof high-pressure-bearing water mining drainage overlying rock movement mode and flow field distribution similarity test device and method |
| CN112965135B (en) * | 2021-01-28 | 2023-08-15 | 长安大学 | Nondestructive detection comprehensive method for spatial heterogeneous distribution of grotto cliff body cracks |
| CN114839125A (en) * | 2022-04-01 | 2022-08-02 | 中国化学工程第三建设有限公司 | Full-automatic waterproofing membrane water impermeability test device |
| CN115406582A (en) * | 2022-09-29 | 2022-11-29 | 湖南省水利水电科学研究院 | Dam seepage identification method based on infrared image |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2783921B1 (en) * | 1998-09-29 | 2001-01-12 | Inst Francais Du Petrole | THERMOGRAPHY METHOD AND DEVICE FOR ANALYZING THE PROGRESSION OF INJECTED FLUIDS IN A PERMEABLE MEDIUM |
| CN104407006A (en) * | 2014-12-01 | 2015-03-11 | 中国矿业大学 | Infrared test method for exploring water conducting passage of rock fracture |
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2014
- 2014-12-01 CN CN201410717895.0A patent/CN104407006A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086601A1 (en) * | 2014-12-01 | 2016-06-09 | 中国矿业大学 | Infrared test method for exploring water-conducting passage of rock fracture |
| CN107917927A (en) * | 2017-11-21 | 2018-04-17 | 中国矿业大学(北京) | Monitor the method and experimental provision of rock soil medium Water Transport state |
| CN110221036A (en) * | 2018-03-01 | 2019-09-10 | 中国矿业大学 | Water-retaining production " sound emission-infra-red radiation " experimental system with seepage apparatus |
| CN110221036B (en) * | 2018-03-01 | 2021-08-10 | 中国矿业大学 | Water-retaining mining acoustic emission-infrared radiation experiment system with seepage device |
| CN109696354A (en) * | 2018-12-19 | 2019-04-30 | 昆明理工大学 | A kind of crack rock failure evolvement process intermediate infrared radiation monitoring device and method |
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| Publication number | Publication date |
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| WO2016086601A1 (en) | 2016-06-09 |
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Application publication date: 20150311 |