CN103592071B - Rib support pressure audio-frequency detection - Google Patents
Rib support pressure audio-frequency detection Download PDFInfo
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- CN103592071B CN103592071B CN201310527857.4A CN201310527857A CN103592071B CN 103592071 B CN103592071 B CN 103592071B CN 201310527857 A CN201310527857 A CN 201310527857A CN 103592071 B CN103592071 B CN 103592071B
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Abstract
The invention discloses a kind of rib support pressure audio-frequency detection, first along getting out the elongated hole that comprises whole support pressure variation range from big to small in workplace front rib or tunnel side direction rib; By arranging expansion audio frequency detector in elongated hole; In expansion audio frequency detector, note is pressed and is monitored note pressure pressure and audio recording; With the increase of pressure of showwing loving care for, detecting device outwards expands and by hole wall spalling; Record the note pressure pressure that this point is corresponding, this note pressure pressure is the support pressure of this measurement point, and the detection descending any is carried out in then pressure release; The support pressure that final basis detects draws abutment pressure distribution curve map; Compared with prior art, it can obtain the absolute value of support pressure by straight space easily, have detection rapidly, advantage accurately.The present invention, by state natural sciences fund, is numbered 51374137 project researchs and completes.
Description
Technical field
The present invention relates to a kind of rib support pressure audio-frequency detection.
Background technology
Support pressure is the important component part of rock pressure [in mine, it is the key factor affecting workplace and stability of the roadway, grasp distributing discipline of abutment pressure, comprising the key character parameters such as distribution range, high peak position, low pressure zone scope, is the important evidence that research rock pressure [in mine mechanism of production also finally realizes rock pressure [in mine control.
Conventional support pressure monitoring method has boring flat jack method, boring string wire dynamometry and advance heading displacement method.
But the stress that these methods relatively increase or reduce after all can only measuring and installing instruments, the order of magnitude of support pressure can not be measured, decision-making is gone controlled by the rock pressure [in mine definitely propping up the effect of pressure-bearing value to by the support pressure value of increase and decrease relatively, usually cause rock pressure [in mine situation misjudged, and then correct effective control can not be obtained.
Summary of the invention
The object of the present invention is to provide a kind of rib support pressure audio-frequency detection, it can obtain the absolute value of support pressure directly, easily, have detection rapidly, advantage accurately.
For achieving the above object, the present invention by the following technical solutions:
Monitor a method for the advanced rib of coal-face or both sides, tunnel rib support pressure absolute value, comprise the following steps:
A, along getting out the elongated hole that comprises whole support pressure variation range from big to small in workplace front rib or tunnel side direction rib;
B, expansion audio frequency detector is set in elongated hole, in elongated hole, is measured successively to other direction by a direction: in expansion audio frequency detector note press and monitor note pressure pressure, audio sensor monitors also record audio; With the increase of pressure of showwing loving care for, detecting device outwards expands and starts to contact with the hole wall of boring, to outwards expanding and extrude drill hole inner wall; Along with the carrying out of extruding of outwards expanding, the hole wall spalling of this position, the audio frequency that audio sensor monitors now strengthens suddenly; Record the note pressure pressure that this point is corresponding, this note pressure pressure is the support pressure of this measurement point, and the detection descending any is carried out in then pressure release;
The support pressure that C, basis detect draws abutment pressure distribution curve map.
For monitoring an expansion audio frequency detector for coal work rock pressure absolute value, include note pressure pipe, the flexible expansion cell of outlet outer wrap of note pressure pipe, at least side of elastic expansion unit is provided with audio sensor.
Further, at least side of described elastic expansion unit is provided with plug.
Further, described note pressure pipe is hard liquid injection pipe, and one end shutoff of liquid injection pipe, the perisporium of liquid injection pipe shutoff end side is provided with fluid hole, and the outer end burden of fluid hole has tubular elastic expansion unit, the closed at both ends of elastic expansion unit.
Further, the two ends of described elastic expansion unit are respectively provided with an audio sensor.
Further, along the axis of liquid injection pipe, the outside of audio sensor is provided with plug.
Further, pressure transducer is provided with in described elastic expansion unit.
Principle of work of the present invention and beneficial effect show:
The present invention gets out an elongated hole on advanced rib or both sides, tunnel rib, and the degree of depth of this elongated hole should comprise whole support pressure variation range from big to small.
Expansion audio frequency detector is set in elongated hole, by to fluid injection in expansion audio frequency detector, expansion audio frequency detector outwards expands and exerts pressure to hole wall, when outside pressure exceedes the pressure born of this hole wall, hole wall place starts to occur by the phenomenon of spalling, now, audio sensor senses hole wall spalling and records this sound, because original pressurising is quieter, when hole wall is by spalling, audio sensor has a larger fluctuation; Record now corresponding pressurising pressure, namely this pressurising pressure hole wall being carried out spalling be the support pressure of this point, draws support pressure figure.
For ensureing the accuracy of whole support pressure, during measurement, monitored to another direction along elongated hole by a direction, such as from outside to inside or from inside to outside.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings;
Fig. 1 is swollen audio frequency detector schematic diagram;
Fig. 2 is monitoring schematic diagram.
Embodiment
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection
The present invention, by state natural sciences fund, is numbered 51374137 project researchs and completes; As shown in Figure 1, a kind of expansion audio frequency detector for monitoring coal work rock pressure absolute value, include hard liquid injection pipe 1, one end shutoff of liquid injection pipe 1, the perisporium of liquid injection pipe 1 shutoff end side is evenly provided with some fluid holes 2, the outer end burden of fluid hole 2 has tubular elastic expansion unit 3, the closed at both ends of elastic expansion unit 3, the two ends of elastic expansion unit 3 are respectively provided with an audio sensor 4, the connecting line of audio sensor 4 is external, and the outside of audio sensor 4 is respectively provided with a column plug 5.
For ensureing the accuracy of pressure detection, in elastic expansion unit 3, be provided with pressure transducer 6.
During measurement, as shown in Figure 2
A, according to concrete monitoring location, select suitable angle and size, the degree of depth, along getting out the elongated hole 7 that comprises whole support pressure variation range from big to small in workplace front rib or tunnel side direction rib;
B, in elongated hole 7, arrange expansion audio frequency detector, in elongated hole 7, measured successively to other direction by a direction, in Fig. 2,8 is monitoring point, such as from outside to inside: fluid injection in expansion audio frequency detector, audio sensor 4 are monitored and record audio; Along with the increase of liquid filling pressure, the elastic expansion unit 3 of detecting device outwards expands and contacts with the hole wall of elongated hole 7 with beginning, to outwards expanding and extrude elongated hole 7 inwall; Along with the carrying out of extruding of outwards expanding, elongated hole 7 inwall there will be by the phenomenon risen brokenly, and audio sensor 4 monitors audio frequency when hole wall is risen brokenly and adds suddenly a little louder; Record the note pressure pressure that this point is corresponding, this note pressure pressure is the support pressure of this measurement point, and then pressure release, stretches into expansion audio frequency detector, carries out the detection descending a bit.
The support pressure that C, basis detect draws abutment pressure distribution curve map.
The above is only the preferred implementation of the application, those skilled in the art is understood or realizes the application.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a rib support pressure audio-frequency detection, is characterized in that: comprise the following steps:
A, along getting out the elongated hole that comprises whole support pressure variation range from big to small in workplace front rib or tunnel side direction rib;
B, expansion audio frequency detector is set in elongated hole, in elongated hole, is measured successively to other direction by a direction: in expansion audio frequency detector note press and monitor note pressure pressure, audio sensor monitors also record audio; With the increase of pressure of showwing loving care for, detecting device outwards expands and starts to contact with the hole wall of boring, to outwards expanding and extrude drill hole inner wall; Along with the carrying out of extruding of outwards expanding, the hole wall spalling of this position, the audio frequency that audio sensor monitors now strengthens suddenly; Record the note pressure pressure that this point is corresponding, this note pressure pressure is the support pressure of this measurement point, and the detection descending any is carried out in then pressure release;
The support pressure that C, basis detect draws abutment pressure distribution curve map.
2. for monitoring an expansion audio frequency detector for coal work rock pressure absolute value, it is characterized in that: include note pressure pipe, the flexible expansion cell of outlet outer wrap of note pressure pipe, at least side of elastic expansion unit is provided with audio sensor.
3. the expansion audio frequency detector for monitoring coal work rock pressure absolute value according to claim 2, is characterized in that: at least side of described elastic expansion unit is provided with plug.
4. the expansion audio frequency detector for monitoring coal work rock pressure absolute value according to claim 2, it is characterized in that: described note pressure pipe is hard liquid injection pipe, one end shutoff of liquid injection pipe, the perisporium of liquid injection pipe shutoff end side is provided with fluid hole, the outer end burden of fluid hole has tubular elastic expansion unit, the closed at both ends of elastic expansion unit.
5. the expansion audio frequency detector for monitoring coal work rock pressure absolute value according to claim 4, is characterized in that: the two ends of described elastic expansion unit are respectively provided with an audio sensor.
6. the expansion audio frequency detector for monitoring coal work rock pressure absolute value according to claim 5, it is characterized in that: along the axis of liquid injection pipe, the outside of audio sensor is provided with plug.
7. the expansion audio frequency detector for monitoring coal work rock pressure absolute value according to claim 4, is characterized in that: be provided with pressure transducer in described elastic expansion unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310527857.4A CN103592071B (en) | 2013-10-31 | 2013-10-31 | Rib support pressure audio-frequency detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310527857.4A CN103592071B (en) | 2013-10-31 | 2013-10-31 | Rib support pressure audio-frequency detection |
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| Publication Number | Publication Date |
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| CN103592071A CN103592071A (en) | 2014-02-19 |
| CN103592071B true CN103592071B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310527857.4A Expired - Fee Related CN103592071B (en) | 2013-10-31 | 2013-10-31 | Rib support pressure audio-frequency detection |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758571A (en) * | 2013-10-31 | 2014-04-30 | 山东科技大学 | Bearing pressure audio detector for coal wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101226U (en) * | 1991-02-09 | 1992-04-08 | 徐缨 | Sounder pressure measurer |
| CN102435385A (en) * | 2012-01-03 | 2012-05-02 | 北京爱社时代科技发展有限公司 | Gas pressure gauge with automatic pressure alarming function |
| CN102608296A (en) * | 2012-02-17 | 2012-07-25 | 浙江大学 | Device and method for simulating and monitoring expanding and cracking of concrete |
| CN103115822A (en) * | 2012-12-12 | 2013-05-22 | 上海电气钠硫储能技术有限公司 | Internal-pressure-resistant detection method for ceramic tube |
| CN103758571A (en) * | 2013-10-31 | 2014-04-30 | 山东科技大学 | Bearing pressure audio detector for coal wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080110497A (en) * | 2007-06-14 | 2008-12-18 | 야마하 가부시키가이샤 | Microphone package adapted to semiconductor device and manufacturing method therefor |
-
2013
- 2013-10-31 CN CN201310527857.4A patent/CN103592071B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101226U (en) * | 1991-02-09 | 1992-04-08 | 徐缨 | Sounder pressure measurer |
| CN102435385A (en) * | 2012-01-03 | 2012-05-02 | 北京爱社时代科技发展有限公司 | Gas pressure gauge with automatic pressure alarming function |
| CN102608296A (en) * | 2012-02-17 | 2012-07-25 | 浙江大学 | Device and method for simulating and monitoring expanding and cracking of concrete |
| CN103115822A (en) * | 2012-12-12 | 2013-05-22 | 上海电气钠硫储能技术有限公司 | Internal-pressure-resistant detection method for ceramic tube |
| CN103758571A (en) * | 2013-10-31 | 2014-04-30 | 山东科技大学 | Bearing pressure audio detector for coal wall |
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Address after: 266590 Qingdao economic and Technological Development Zone, Shandong Bay Road, No. 579 Applicant after: Shandong Univ. of Science & Technology Address before: 271611 Shandong city of Tai'an province Daizong Street No. 223 Applicant before: Shandong Univ. of Science & Technology |
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