CN204694384U - Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured - Google Patents

Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured Download PDF

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Publication number
CN204694384U
CN204694384U CN201520224529.1U CN201520224529U CN204694384U CN 204694384 U CN204694384 U CN 204694384U CN 201520224529 U CN201520224529 U CN 201520224529U CN 204694384 U CN204694384 U CN 204694384U
Authority
CN
China
Prior art keywords
hydraulic pressure
converter
stress
utricule
pressure utricule
Prior art date
Application number
CN201520224529.1U
Other languages
Chinese (zh)
Inventor
刘万荣
彭超
李传明
袁安营
朱传奇
Original Assignee
安徽理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority to CN2014207261915 priority Critical
Priority to CN201420726191 priority
Application filed by 安徽理工大学 filed Critical 安徽理工大学
Priority to CN201520224529.1U priority patent/CN204694384U/en
Application granted granted Critical
Publication of CN204694384U publication Critical patent/CN204694384U/en

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Abstract

The utility model discloses a kind of hydraulic borehole stress-meter being applied to underground coal rock mass stress and measuring, comprise hydraulic pressure utricule and converter, the cross section of described hydraulic pressure utricule is rounded, and the outer ring of described hydraulic pressure utricule is evenly fixed 4 fan-shaped flat jack lobes, described 4 flat jack lobes are positioned on same vertical plane, and the axes normal of this vertical plane and hydraulic pressure utricule, hydraulic pressure utricule is connected with one end of converter by oil guide pipe, and hydraulic pressure utricule and converter form an oil piping system blocked; The upper end of converter is provided with a circular pouring orifice, and the other end of converter is connected with measuring instrument by two wires; Fluid is marked with in described hydraulic pressure utricule and converter inner chamber.The utility model can not only measure the bidirectional stress situation of coal and rock, and simple to operate, working stability.

Description

Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured

Technical field

The utility model relates to a kind of borehole stressmeter, particularly a kind of hydraulic borehole stress-meter being applied to underground coal rock mass stress and measuring.

Background technology

Coal is the main energy sources of China, and hydraulic borehole stress-meter is used widely in the coal and rock stress measurement of mine.Along with colliery continues, toward deep mining, to bring new disaster accident, such as rock burst, rock burst etc. to Safety of Coal Mine Production.These disasters mainly enter that deep mining high-ground stress causes, so the stress of Real-Time Monitoring coal and rock seems most important to disaster prevention.Borehole stressmeter in the past can only monitor unidirectional stressing conditions, helpless to the bidirectional stress of coal and rock.Novel hydraulic borehole stressmeter can the bidirectional stress situation of Real-Time Monitoring coal and rock, understanding the stress deformation feature of coal and rock, providing safeguard to preventing accident in advance.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of hydraulic borehole stress-meter being applied to underground coal rock mass stress and measuring, this taseometer overcomes traditional taseometer can only monitor one-sided stressed shortcoming, and this taseometer working stability, installs simple to operate.

For achieving the above object, the utility model provides following technical scheme: a kind of hydraulic borehole stress-meter being applied to underground coal rock mass stress and measuring, comprise hydraulic pressure utricule and converter, the cross section of described hydraulic pressure utricule is rounded, and the outer ring of described hydraulic pressure utricule is evenly fixed 4 fan-shaped flat jack lobes, described 4 flat jack lobes are positioned on same vertical plane, and the axes normal of this vertical plane and hydraulic pressure utricule, hydraulic pressure utricule is connected with one end of converter by oil guide pipe, and hydraulic pressure utricule and converter form an oil piping system blocked; The upper end of converter is provided with a circular pouring orifice, and the other end of converter is connected with measuring instrument by two wires; Fluid is marked with in described hydraulic pressure utricule and converter inner chamber.

Preferably, hydraulic pressure utricule adopts epoxide resin material to make, and its length is 22cm, and radius is 2cm.

Preferably, flat jack lobe all adopts corrosion resistant plate to make, and its arc length is 25cm, and radius is 2.5cm.

Adopt technique scheme, when taseometer is placed in boring, 4 the flat jack lobes being positioned at the external circle of hydraulic bag are subject to holing the effect of around coal and rock stress, 4 flat jack lobes are 4 acting forces along flat jack lobe axis direction the stress conversion of coal and rock, and act on hydraulic pressure utricule, 4 flat jack lobes by Stress transmit to the fluid in hydraulic pressure utricule inner chamber, and the fluid pressure of fluid is delivered to the fluid of converter by oil guide pipe, the pressure signal of fluid is then converted into electric signal by converter, and by wire transmission on measuring instrument, and on measuring instrument, demonstrate the change curve of stress.The utility model can not only measure the bidirectional stress situation of coal and rock, and simple to operate, working stability.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model flat jack valve structure schematic diagram;

Wherein, 1. hydraulic pressure utricule 2. oil guide pipe 3. pouring orifice 4. converter 5. wire 6. flat jack lobe.

Embodiment

Below in conjunction with accompanying drawing, by the description to embodiment, the utility model is described further:

As Fig. 1, shown in 2, the utility model is applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured, comprise hydraulic pressure utricule 1 and converter 4, the cross section of hydraulic pressure utricule 1 is rounded, hydraulic pressure utricule 1 adopts epoxide resin material to make, and its length is 22cm, radius is 2cm, and the outer ring of hydraulic pressure utricule 1 is evenly fixed 4 fan-shaped flat jack lobes 6, flat jack lobe 6 all adopts corrosion resistant plate to make, and its arc length is 25cm, radius is 2.5cm, 4 flat jack lobes 6 are positioned on same vertical plane, and the same vertical plane at these 4 flat jack lobe 6 places and the axes normal of hydraulic pressure utricule 1, hydraulic pressure utricule 1 is connected with one end of converter 4 by oil guide pipe 2, hydraulic pressure utricule 1 and converter 4 form an oil piping system blocked, the upper end of converter 4 is provided with a circular pouring orifice 3, and the other end of converter 4 is connected with measuring instrument by two wires 5.

When the utility model uses, first with the drilling rod that diameter is 50mm, boring is accomplished fluently, then utilize guide rod that hydraulic pressure utricule 1 is delivered to the assigned address of boring, open pouring orifice 3, utilize filling pump toward oiling in converter 4, after oiling, hydraulic pressure utricule 1 expands, oiling is stopped when the pressure in hydraulic pressure utricule 1 reaches the definite value of setting, now, 4 flat jack lobes 6 can not only respond to the pressure of vertical direction, also can the pressure in sensation level direction.When rock mass stress increases, rock mass four weekly assembly oppresses 4 flat jack lobes 6,4 flat jack lobes 6 are 4 acting forces along flat jack lobe 6 axis direction the stress conversion of coal and rock, and act on hydraulic pressure utricule 1, fluid in hydraulic pressure utricule 1 inner chamber produces fluid pressure under the effect of hydraulic pressure utricule 1, and the fluid pressure of fluid is delivered to the fluid in converter 4 by oil guide pipe 2, the pressure signal of fluid is converted into electric signal by converter 4, and is transferred on measuring instrument by wire 5.

The utility model can not only measure the bidirectional stress situation of coal and rock, and simple to operate, working stability.

Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims (3)

1. be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured, comprise hydraulic pressure utricule (1) and converter (4), it is characterized in that: the cross section of described hydraulic pressure utricule (1) is rounded, and the outer ring of described hydraulic pressure utricule (1) is evenly fixed 4 fan-shaped flat jack lobes (6), described 4 flat jack lobes (6) are positioned on same vertical plane, and the axes normal of this vertical plane and hydraulic pressure utricule (1), hydraulic pressure utricule (1) is connected by oil guide pipe (2) one end with converter (4), hydraulic pressure utricule (1) and converter (4) form an oil piping system blocked, the upper end of converter (4) is provided with a circular pouring orifice (3), and the other end of converter (4) is connected with measuring instrument by two wires (5), fluid is marked with in described hydraulic pressure utricule (1) and converter (4) inner chamber.
2. the hydraulic borehole stress-meter being applied to underground coal rock mass stress and measuring according to claim 1, is characterized in that: described hydraulic pressure utricule (1) adopts epoxide resin material to make, and its length is 22cm, and radius is 2cm.
3. the hydraulic borehole stress-meter being applied to underground coal rock mass stress and measuring according to claim 2, is characterized in that: described flat jack lobe (6) all adopts corrosion resistant plate to make, and its arc length is 25cm, and radius is 2.5cm.
CN201520224529.1U 2014-11-26 2015-04-14 Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured CN204694384U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2014207261915 2014-11-26
CN201420726191 2014-11-26
CN201520224529.1U CN204694384U (en) 2014-11-26 2015-04-14 Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520224529.1U CN204694384U (en) 2014-11-26 2015-04-14 Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured

Publications (1)

Publication Number Publication Date
CN204694384U true CN204694384U (en) 2015-10-07

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CN201520224529.1U CN204694384U (en) 2014-11-26 2015-04-14 Be applied to the hydraulic borehole stress-meter that underground coal rock mass stress is measured

Country Status (1)

Country Link
CN (1) CN204694384U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105486431A (en) * 2015-12-30 2016-04-13 山东科技大学 Recycle type borehole stress monitoring device and monitoring method
CN106546359A (en) * 2016-11-24 2017-03-29 中国矿业大学 A kind of surrouding rock stress measuring system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105486431A (en) * 2015-12-30 2016-04-13 山东科技大学 Recycle type borehole stress monitoring device and monitoring method
CN105486431B (en) * 2015-12-30 2017-09-29 山东科技大学 A kind of recoverable drilling hole stress monitoring device and monitoring method
CN106546359A (en) * 2016-11-24 2017-03-29 中国矿业大学 A kind of surrouding rock stress measuring system
CN106546359B (en) * 2016-11-24 2018-12-21 中国矿业大学 A kind of surrouding rock stress measuring system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151007

Termination date: 20160414

CF01 Termination of patent right due to non-payment of annual fee