CN103018787A - Rock mass temperature detecting system for forecasting of water-bearing structures - Google Patents
Rock mass temperature detecting system for forecasting of water-bearing structures Download PDFInfo
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- CN103018787A CN103018787A CN2012105091987A CN201210509198A CN103018787A CN 103018787 A CN103018787 A CN 103018787A CN 2012105091987 A CN2012105091987 A CN 2012105091987A CN 201210509198 A CN201210509198 A CN 201210509198A CN 103018787 A CN103018787 A CN 103018787A
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Abstract
The invention discloses a rock mass temperature detecting system for forecasting of water-bearing structures. The rock mass temperature detecting system comprises an air sac, wherein an aerating nozzle is arranged in the air sac, a nut and a sealing ring are arranged on the lower portion of the aerating nozzle, the air sac is in sealing connection with the aerating nozzle through a sealing ring, an optical fiber temperature sensor is arranged on the outer surface of the air sac and connected with a temperature collector through a signal collecting line, the temperature collector is connected with a power source through a power source line, a bearing support is arranged in the air sac, and the sealing ring is in sealing connection with the bearing support. The rock mass temperature detecting system has the advantages of being high in sensitivity of temperature gradient changing and free of ground layer influence, adopting same-point repeated observation, having optimum coupling with a detected target, and being strong in abnormal temperature changing, simple in form and strong in resolving power.
Description
Technical field
The present invention relates to underground works water content structure forecast, forecasting technique field, relate in particular to a kind of rock temperature detection system for the forecast of water content structure.
Background technology
Water damage in the underground works is the principal element of restriction China mining energy and other resources always.Prediction for underground works water content structure also needs to be resolved hurrily, the ultimate principle that available technology adopting transient electromagnetic method (TEM), geological radar, high-density electric etc. come the prediction water content to construct is most and electric, electromagnetism is relevant, the defective that these methods exist is 1. when the search coverage periphery has metal construction, the data that measure are inaccurate, affect Effect on Detecting.2. high to stratum, engineering excavation space and search coverage condition dependence.Particularly in the many zones of test zone undesired signal, near supporting construction, cable, detection accuracy is subjected to considerable influence, sometimes even be difficult to successful implementation.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of rock temperature detection system for the forecast of water content structure is provided; Have thermograde sensitive height, without formation influence, adopt with repeatedly observation of point, with the detection of a target optimum coupling is arranged, abnormal temperature variation response is strong, and form is simple, the strong advantage of resolution characteristic.
For achieving the above object, the present invention adopts following technical proposals:
A kind of rock temperature detection system for the forecast of water content structure, comprise air bag, air bag is provided with charging connector, the charging connector bottom is provided with nut, O-ring seal, and air bag and charging connector are tightly connected by O-ring seal, and the air bag outside surface is provided with fibre optic temperature sensor, fibre optic temperature sensor is connected with Temperature sampler by the signal collection line, Temperature sampler is connected with power supply by power lead, is provided with bearing support in the air bag, and O-ring seal is connected with sealant sealing with bearing support.
Described air bag adopts the circular tube structure of both ends of the surface sealing, and charging connector is connected with the outer face, and the external diameter of described pipe is less than the diameter of boring.
Described air bag adopts plastic material.
Described fibre optic temperature sensor is provided with three and uniform along the same degree of depth of air bag outside surface, and three fibre optic temperature sensors are measured respectively the each point temperature.Gather simultaneously three temperature t 1, t2, t3 in each degree of depth section, adopt the method for average to obtain an average rock temperature of this degree of depth
Keep this system's degree of depth constant, 60 ° of the rock temperature detection systems that turns clockwise simultaneously increase and measure one group of average rock temperature.Two groups of average rock temperatures of the same degree of depth are got average again as the temperature value of this degree of depth.
The bearing support outer end is provided with draw ring, makes things convenient for manually-operated.
Beneficial effect of the present invention:
Described measuring system simple, measure accurately and reliably, by measuring the Changing Pattern of temperature in the rock mass, determine scale, the Accurate Prediction forecast underground works water content structure of water content structure in the rock mass, be used for the underground engineering construction process under roadway excavation or other factor affecting, be conducive to safe construction and the disaster alarm of Practical Project;
2. adopt with repeatedly observation of point, with the detection of a target optimum coupling is arranged, high to the thermograde sensitive, the change of temperature field exception response is true, effecting reaction underground works water content structure exists, and without formation influence, it is strong that abnormal temperature changes response, form is simple, the strong advantage of resolution characteristic.
Description of drawings
Fig. 1 is structural representation of the present invention;
Wherein, 1. draw ring; 2. charging connector; 3. nut; 4. Temperature sampler; 5. power lead; 6. power supply; 7. O-ring seal; 8. air bag; 9. signal collection line; 11. bearing support; 12. fibre optic temperature sensor.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
In conjunction with Fig. 1, a kind of rock temperature detection system for the forecast of water content structure, comprise air bag 8, air bag is provided with charging connector 2, charging connector 2 bottoms are provided with nut 3, air bag 8 is tightly connected with charging connector 2 usefulness O-ring seals 7, air bag 8 outside surfaces are provided with fibre optic temperature sensor 12, fibre optic temperature sensor 12 is connected with Temperature sampler 4 by signal collection line 9, Temperature sampler 4 is connected with power supply 6 by power lead 5, be provided with bearing support 11 in the air bag 8, bearing support 11 is tightly connected with O-ring seal 7.
Described air bag 8 adopts the circular tube structure of both ends of the surface sealing, and charging connector 2 is connected with the outer face, and the external diameter of described pipe is less than the diameter of boring.
Described air bag 8 adopts plastic material.
Described fibre optic temperature sensor 12 is provided with three and uniform along the same degree of depth of air bag 8 outside surfaces, and three fibre optic temperature sensors 12 are measured respectively the each point temperature.Gather simultaneously three temperature t 1, t2, t3 in each degree of depth section, adopt the method for average to obtain average rock temperature
Measure respectively the temperature of rock mass under different depth and record.
The bearing support outer end is provided with draw ring 1, makes things convenient for manually-operated.
Principle of work of the present invention: during use, air bag 8 is made diameter less than circular tube structure bore diameter, the both ends of the surface sealing, air bag 8 adopts plastic material to make.Hand-held bearing support is placed on the bottom of boring to this system with draw ring, according to being rotated counterclockwise, guarantees that this system is unimpeded, prevents obstruction and hole clipping phenomenon; Toward the inflation of charging connector the inside, until be full of air in the complete distending body of air bag; Make fibre optic temperature sensor be close to rock mass, guarantee that fibre optic temperature sensor contacts well with boring rock mass wall.Adjust Temperature sampler, plugged gathers three temperature t 1, t2, t3 simultaneously in each degree of depth section, adopts the method for average to obtain an average rock temperature of this degree of depth
Then deenergization is opened the charging connector nut, behind the Bas Discharged of air bag, keeps this system's degree of depth constant, and 60 ° of the rock temperature detection systems that turns clockwise simultaneously increase and measure one group of average rock temperature.Two groups of average rock temperatures of the same degree of depth are got average again as the temperature value of this degree of depth.After all measurement was finished, deenergization was opened the charging connector nut, behind the Bas Discharged in air bag, the rock temperature detection system was taken out from boring.
Although above-mentioned by reference to the accompanying drawings to the invention embodiment be described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (5)
1. one kind is used for the rock temperature detection system that water-bearing structure is forecast, it is characterized in that, comprise air bag, air bag is provided with charging connector, and the charging connector bottom is provided with nut, O-ring seal, and the air bag outside surface is provided with fibre optic temperature sensor, fibre optic temperature sensor is connected with Temperature sampler by the signal collection line, Temperature sampler is connected with power supply by power lead, is provided with bearing support in the air bag, and O-ring seal and bearing support are tightly connected.
2. the rock temperature detection system for the forecast of water content structure as claimed in claim 1 is characterized in that described air bag adopts the circular tube structure of both ends of the surface sealing, and charging connector is connected with the outer face, and the external diameter of described pipe is less than the diameter of boring.
3. the rock temperature detection system for the forecast of water content structure as claimed in claim 1 is characterized in that described air bag adopts plastic material.
4. the rock temperature detection system for the forecast of water content structure as claimed in claim 1 is characterized in that, described fibre optic temperature sensor is provided with three and uniform along the same degree of depth of air bag outside surface.
5. the rock temperature detection system for the forecast of water content structure as claimed in claim 1 is characterized in that described bearing support outer end is provided with draw ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105091987A CN103018787A (en) | 2012-12-03 | 2012-12-03 | Rock mass temperature detecting system for forecasting of water-bearing structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105091987A CN103018787A (en) | 2012-12-03 | 2012-12-03 | Rock mass temperature detecting system for forecasting of water-bearing structures |
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| Publication Number | Publication Date |
|---|---|
| CN103018787A true CN103018787A (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105091987A Pending CN103018787A (en) | 2012-12-03 | 2012-12-03 | Rock mass temperature detecting system for forecasting of water-bearing structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213907A (en) * | 2014-08-22 | 2014-12-17 | 中铁隧道集团有限公司 | Method for detecting temperature of water body in front of tunnel face on basis of temperature field principle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6547435B1 (en) * | 1998-05-15 | 2003-04-15 | GESO Gesellschaft für Sensorik, Geotechnischen Umweltschutz und Mathematische Modellierung mbH Jena | Device for monitoring temperature distribution on the basis of distributed fiber-optic sensing, and use of same |
| CN101298840A (en) * | 2008-06-25 | 2008-11-05 | 中铁西南科学研究院有限公司 | Method for forecasting tunnel construction tunnel face front water burst position |
| CN202092791U (en) * | 2011-06-08 | 2011-12-28 | 胡学军 | Installing utensil used for drill hole inner wall multiple spot temperature sensor positioning installation |
| CN202975360U (en) * | 2012-12-03 | 2013-06-05 | 山东大学 | Rock temperature detection system for prediction of aquifer structure |
-
2012
- 2012-12-03 CN CN2012105091987A patent/CN103018787A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6547435B1 (en) * | 1998-05-15 | 2003-04-15 | GESO Gesellschaft für Sensorik, Geotechnischen Umweltschutz und Mathematische Modellierung mbH Jena | Device for monitoring temperature distribution on the basis of distributed fiber-optic sensing, and use of same |
| CN101298840A (en) * | 2008-06-25 | 2008-11-05 | 中铁西南科学研究院有限公司 | Method for forecasting tunnel construction tunnel face front water burst position |
| CN202092791U (en) * | 2011-06-08 | 2011-12-28 | 胡学军 | Installing utensil used for drill hole inner wall multiple spot temperature sensor positioning installation |
| CN202975360U (en) * | 2012-12-03 | 2013-06-05 | 山东大学 | Rock temperature detection system for prediction of aquifer structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213907A (en) * | 2014-08-22 | 2014-12-17 | 中铁隧道集团有限公司 | Method for detecting temperature of water body in front of tunnel face on basis of temperature field principle |
| CN104213907B (en) * | 2014-08-22 | 2017-01-11 | 中铁隧道集团有限公司 | Method for detecting temperature of water body in front of tunnel face on basis of temperature field principle |
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Application publication date: 20130403 |