CN102797455A - Rock stratum fracture detecting device - Google Patents
Rock stratum fracture detecting device Download PDFInfo
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- CN102797455A CN102797455A CN2012103057799A CN201210305779A CN102797455A CN 102797455 A CN102797455 A CN 102797455A CN 2012103057799 A CN2012103057799 A CN 2012103057799A CN 201210305779 A CN201210305779 A CN 201210305779A CN 102797455 A CN102797455 A CN 102797455A
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Abstract
The invention provides a rock stratum fracture detecting device comprising an elastic sac, a gas filled pipe, a pipe joint and a pressure detecting device. The pipe joint is communicated with the elastic sac, and a drill hole can be plugged tightly by the elastic sac after the elastic sac is full of medium through the pipe joint; and the gas filled pipe passes through the elastic sac, the pressure detecting device is communicated with the gas filled pipe, the drill hole plugged by the elastic sac is full of pressure air through the gas filled pipe, and the air pressure in the plugged drill hole can be detected by the pressure detecting device. By using the rock stratum fracture detecting device provided by the invention, whether a fracture exists in the drill hole can be judged according to the change condition of a pressure gauge on the pressure detecting device, and meanwhile, the position of the fracture can be judged through regulating the position of the elastic sac for many times.
Description
Technical field
The present invention relates to a kind of layer-through drilling detection technique, relate in particular to a kind of rock crack checkout gear.
Background technology
The most basic link of gas control engineering is exactly sealing of hole and extraction, and wherein sealing of hole is again to depend on extraction effect and extraction quality.If will seal each boring, just must take measure targetedly in advance, different hole-sealing technologies are taked in each boring.
In the sealing of hole process, rock crack is arranged in the boring or obvious structural fracture band etc. is arranged, if the concrete occurrence positions of rock crack band on top of, boring is difficult to obturage, as after having annotated slurry, infiltration causes sealing of hole unsaturated to slurries along the crack, leaks gas thereby produce.If boring is not sealed, once more boring is repaired and can be wasted time and energy more.
Summary of the invention
The present invention provides a kind of rock crack checkout gear, in order to solve before the sealing of hole can't check borehole in the rock crack band, and cause the problem of sealing quality difference.
Rock crack checkout gear provided by the invention comprises elastomeric bladder, gas tube, union and pressure-detecting device;
Said union is communicated with said elastomeric bladder, and after said elastomeric bladder was full of medium, said elastomeric bladder can be tight with borehole sealing through said union;
Said gas tube passes said elastomeric bladder; Said pressure-detecting device is communicated with said gas tube, in by the boring after the said elastomeric bladder shutoff, is full of pressure air through said gas tube, and said pressure-detecting device can detect the in-borehole gas pressure after the shutoff.
Aforesaid rock crack checkout gear, preferably, said pressure-detecting device comprises relief valve and pressure meter, and said relief valve is communicated with said pressure meter, and said pressure meter is communicated with said loading line.
Aforesaid rock crack checkout gear, preferably, said elastomeric bladder is the cylindrical structural with inner chamber, said gas tube axially passes said elastomeric bladder along said elastomeric bladder.
Aforesaid rock crack checkout gear, preferably, said elastomeric bladder is a rubber bag tank.
Aforesaid rock crack checkout gear, preferably, the tube wall end of said gas tube has a plurality of pores.
Rock crack checkout gear provided by the invention is full of medium through the union that links to each other with elastomeric bladder in elastomeric bladder, the elastomeric bladder that is full of medium can be tight with borehole sealing; Gas tube passes elastomeric bladder, and pressure-detecting device is communicated with gas tube again, in by the boring after the said elastomeric bladder shutoff, is full of pressure air through said gas tube, and pressure-detecting device can detect the in-borehole gas pressure after the shutoff.Thereby, judge in the boring according to the variation of gas pressure situation whether the crack is arranged.Simultaneously, through repeatedly adjusting the position of elastomeric bladder, can judge the position in crack.
Description of drawings
Fig. 1 is the structural representation of rock crack checkout gear.
Description of reference numerals:
1: elastomeric bladder; 2: gas tube; 3: union;
4: pressure-detecting device; 41: relief valve; 42: pressure meter;
5: high-voltage tube; 51: the gas tube joint; 52: high-pressure pipe connector;
6: boring; 61: hole wall.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the structural representation of rock crack checkout gear.As shown in Figure 1, the rock crack checkout gear that present embodiment provides comprises: comprise elastomeric bladder 1, gas tube 2, union 3 and pressure-detecting device 4.Union 3 is communicated with elastomeric bladder 1, and after elastomeric bladder 1 was full of medium, elastomeric bladder 1 can be tight with boring 6 shutoff through union 3, and concrete can be full of water or air through union 3 in elastomeric bladder 1, also can be other media; Gas tube 2 passes elastomeric bladder 1; The end of gas tube 2 stretches in the boring 6; Pressure-detecting device 4 is communicated with gas tube 2; In by the boring 6 after elastomeric bladder 1 shutoff, be full of pressure air through gas tube 2, pressure-detecting device 4 can be detect the instrument of gas pressure, can detect gas pressures in the boring 6 after the shutoff.
Preferably, elastomeric bladder 1 is for having the cylindrical structural of inner chamber, and gas tube 2 axially passes elastomeric bladder 1 along elastomeric bladder 1; Elastomeric bladder 1 can be rubber bag tank; Rubber bag tank elasticity is bigger, and after medium was full of elastomeric bladder 1, elastomeric bladder 1 expanded; Can guarantee that elastomeric bladder 1 and hole wall 61 are adjacent to, elastomeric bladder 1 also can adopt other soft materials to process.
Particularly; Pressure-detecting device 4 comprises relief valve 41 and pressure meter 42; Relief valve 41 is communicated with pressure meter 42, and pressure meter 41 is communicated with loading line, and pressure meter 42 is preferably shock-proof pressure gauge; Shock-proof pressure gauge has good resistance to shock, is specially adapted to the working environment of mechanical oscillation and medium pulsation.
Preferably, the tube wall end of gas tube 2 has a plurality of pores, and the residual coal petrography powder in can preventing to hole stops up gas tube 2.For the ease of processing and manufacturing, the tube wall end of gas tube 2 can not be provided with a plurality of pores, but a tube connector that has a plurality of pores is installed, and this tube connector can be dismantled easily.Preferably, gas tube 2, union 3 and elastomeric bladder 1 are as a whole, can make better and convenient installation of seal of elastomeric bladder 1 like this.
Use before this device detection, water flushing hole wall 61, other impurity such as 6 interior noresidue coal petrography powder of guaranteeing to hole are in order to prevent that the coal petrography powder from blocking gas tube 2 on the one hand, are in order to guarantee that elastomeric bladder 1 can be adjacent to hole wall 61 on the other hand.Then elastomeric bladder 1 is put into boring 6; Through high-voltage tube 5 pressure-detecting device 4 is connected with gas tube 2 in the elastomeric bladder 1; One end of high-voltage tube 5 links to each other with gas tube 2 through gas tube joint 51; The other end links to each other with pressure-detecting device 4 through high-pressure pipe connector 52, has so just become a loading line.Because in use air pressure is bigger, adopt high-voltage tube 5 connect gas tubes 2 and pressure-detecting device 4 be for improve calm the anger during safety.To connect with the union 3 that elastomeric bladder 1 is communicated with then, in elastomeric bladder 1, add water or other media, after elastomeric bladder 1 expansion is adjacent to hole wall 61, wait for stopping in elastomeric bladder 1, to add water or other media after 2 to 3 minutes.
After guaranteeing that elastomeric bladder 1 and hole wall 61 are adjacent to, slowly open relief valve 41, in boring 6, calm the anger, pressure meter 42 display pointers slowly rise.Can not prevent to damage pressure meter 42 by disposable opening relief valve 41,, not want timely blowing-out when boring 6 internal pressures reach on the system pressure in limited time, wait to stablize 2 to 3 minutes after, can close relief valve 41, stop to calm the anger.Observe pressure meter, check that simultaneously boring 6 and periphery boring, wall have or not the air-out situation.Situation of change through pressure meter 42; Judge whether boring 6 has the situation of rock stratum gas leakage; If slowly descending and maintain a pressure, pressure (should be higher than a certain low pressure limit; This low pressure limit can change according to the mining area is different to some extent) constant down, explain that this does not have the crack below position, a batch extraction can slip casting be closed in this position behind the sealing of hole.If pressure descends rapidly, and finally be lower than a certain low pressure limit or, explain that this has the crack below position until dropping to zero.
The position of elastomeric bladder 1 can be adjusted at any time; For example; Can if detect this crack be arranged below the position once, the position of elastomeric bladder 1 adjusted to apart from the position of 20 meters of hells detected again apart from the position probing of 10 meters of hells; Do not have the crack if detect 20 meters with upper/lower positions, the position that the crack is described is just between apart from 10 meters to 20 meters of hells.In this way, can pass through repeated detection, detect the position at place, crack accurately.
Rock crack checkout gear provided by the invention; Through high-voltage tube 5 pressure-detecting device 4 is communicated with gas tube 2, this gas tube 2 axially passes elastomeric bladder 1 along elastomeric bladder 1, can boring 6 shutoff are tight through in this elastomeric bladder 1, being full of medium; Gas tube 2 is full of pressure air in by the boring 6 after elastomeric bladder 1 shutoff; Through the situation of change of the pressure meter on the pressure-detecting device 4 42, the pressure that detects gas in the boring 6 changes, thereby can judge in the boring 6 whether the crack is arranged.Simultaneously, through repeatedly adjusting the position of elastomeric bladder 1, can judge the position in crack.
What should explain at last is: above each embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although the present invention has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (5)
1. a rock crack checkout gear is characterized in that, comprises elastomeric bladder, gas tube, union and pressure-detecting device;
Said union is communicated with said elastomeric bladder, and after said elastomeric bladder was full of medium, said elastomeric bladder can be tight with borehole sealing through said union;
Said gas tube passes said elastomeric bladder; Said pressure-detecting device is communicated with said gas tube, in by the boring after the said elastomeric bladder shutoff, is full of pressure air through said gas tube, and said pressure-detecting device can detect the in-borehole gas pressure after the shutoff.
2. rock crack checkout gear according to claim 1 is characterized in that said pressure-detecting device comprises relief valve and pressure meter, and said relief valve is communicated with said pressure meter, and said pressure meter is communicated with said loading line.
3. rock crack checkout gear according to claim 1 and 2 is characterized in that, said elastomeric bladder is the cylindrical structural with inner chamber, and said gas tube axially passes said elastomeric bladder along said elastomeric bladder.
4. rock crack checkout gear according to claim 3 is characterized in that, said elastomeric bladder is a rubber bag tank.
5. rock crack checkout gear according to claim 1 and 2 is characterized in that, the tube wall end of said gas tube has a plurality of pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103057799A CN102797455A (en) | 2012-08-24 | 2012-08-24 | Rock stratum fracture detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103057799A CN102797455A (en) | 2012-08-24 | 2012-08-24 | Rock stratum fracture detecting device |
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| CN102797455A true CN102797455A (en) | 2012-11-28 |
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| CN2012103057799A Pending CN102797455A (en) | 2012-08-24 | 2012-08-24 | Rock stratum fracture detecting device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900429A (en) * | 2012-09-27 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Device and method for inspecting gas drainage hole tightness |
| CN103912262A (en) * | 2014-01-26 | 2014-07-09 | 中国矿业大学 | Radial volume deformation measuring device for bedding drilling |
| CN108956047A (en) * | 2018-07-28 | 2018-12-07 | 宁波联城住工科技有限公司 | The spillage detection device and method of grout sleeve |
| CN109612629A (en) * | 2019-01-28 | 2019-04-12 | 贵州大学 | A kind of extension assembling mine pressure detection device convenient for adjusting height |
| CN110080747A (en) * | 2019-06-06 | 2019-08-02 | 河南理工大学 | Weak seam mash gas pumping drilling unstability detection method and tool |
| CN110593868A (en) * | 2019-10-28 | 2019-12-20 | 中铁二十三局集团第三工程有限公司 | Equipment and method for determining position of fractured zone |
| CN111781657A (en) * | 2020-06-16 | 2020-10-16 | 中煤科工开采研究院有限公司 | Device and method for measuring penetration height of fractured zone |
| CN113218795A (en) * | 2021-05-06 | 2021-08-06 | 湘潭大学 | Lead-acid battery grid fatigue life simulation detection device and detection method |
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| CN202745859U (en) * | 2012-08-24 | 2013-02-20 | 淮南矿业(集团)有限责任公司 | Rock stratum crack detection device |
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| US3762446A (en) * | 1970-12-08 | 1973-10-02 | Minnesota Mining & Mfg | Method and device for internally locating and sealing pipeline leaks |
| CN2112152U (en) * | 1990-12-25 | 1992-08-05 | 山东矿业学院 | Borehole two-end seal leakage detector |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900429A (en) * | 2012-09-27 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Device and method for inspecting gas drainage hole tightness |
| CN103912262A (en) * | 2014-01-26 | 2014-07-09 | 中国矿业大学 | Radial volume deformation measuring device for bedding drilling |
| CN103912262B (en) * | 2014-01-26 | 2016-08-17 | 中国矿业大学 | A kind of concordant boring radially device for measuring volume variation |
| CN108956047A (en) * | 2018-07-28 | 2018-12-07 | 宁波联城住工科技有限公司 | The spillage detection device and method of grout sleeve |
| CN109612629A (en) * | 2019-01-28 | 2019-04-12 | 贵州大学 | A kind of extension assembling mine pressure detection device convenient for adjusting height |
| CN110080747A (en) * | 2019-06-06 | 2019-08-02 | 河南理工大学 | Weak seam mash gas pumping drilling unstability detection method and tool |
| CN110593868A (en) * | 2019-10-28 | 2019-12-20 | 中铁二十三局集团第三工程有限公司 | Equipment and method for determining position of fractured zone |
| CN111781657A (en) * | 2020-06-16 | 2020-10-16 | 中煤科工开采研究院有限公司 | Device and method for measuring penetration height of fractured zone |
| CN113218795A (en) * | 2021-05-06 | 2021-08-06 | 湘潭大学 | Lead-acid battery grid fatigue life simulation detection device and detection method |
| CN113218795B (en) * | 2021-05-06 | 2022-07-12 | 湘潭大学 | Lead-acid battery grid fatigue life simulation detection device and detection method |
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Application publication date: 20121128 |