CN202745859U - Rock stratum crack detection device - Google Patents
Rock stratum crack detection device Download PDFInfo
- Publication number
- CN202745859U CN202745859U CN 201220424803 CN201220424803U CN202745859U CN 202745859 U CN202745859 U CN 202745859U CN 201220424803 CN201220424803 CN 201220424803 CN 201220424803 U CN201220424803 U CN 201220424803U CN 202745859 U CN202745859 U CN 202745859U
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- China
- Prior art keywords
- pressure
- elastomeric bladder
- gas tube
- communicated
- checkout gear
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- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- 239000011435 rock Substances 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model provides a rock stratum crack detection device which comprises an elastic bag, an inflation tube, a tube joint and a pressure detection device, wherein the tube joint is communicated with the elastic bag; the elastic bag can block a drill hole tightly after being filled with a medium through the tube joint; the inflation tube penetrates through the elastic bag; and the pressure detection device is communicated with the inflation tube and can detect gas pressure in the blocked drill hole after the drill hole blocked by the elastic bag is filled with pressure air through the inflation tube. According to the rock stratum crack detection device, whether a crack exists in the drill hole can be judged according to the change condition of a pressure gauge on the pressure detection device, and the position of the crack can be judged by adjusting the position of the elastic bag repeatedly.
Description
Technical field
The utility model relates to a kind of layer-through drilling detection technique, relates 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 extracting result and extraction quality.If will seal each boring, just must take in advance targetedly measure, 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, thereby produces gas leakage.If boring is not sealed, again boring is repaired and can more be wasted time and energy.
The utility model content
The utility model 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 poor problem of sealing quality.
The rock crack checkout gear that the utility model provides comprises elastomeric bladder, gas tube, union and pressure-detecting device;
Described union is communicated with described elastomeric bladder, be full of medium by described union to described elastomeric bladder after, described elastomeric bladder can be tight with borehole sealing;
Described gas tube passes described elastomeric bladder; Described pressure-detecting device is communicated with described gas tube, and to being full of pressure air in the boring after the described elastomeric bladder shutoff, described pressure-detecting device can detect the in-borehole gas pressure after the shutoff by described gas tube.
Aforesaid rock crack checkout gear, preferably, described pressure-detecting device comprises relief valve and pressure meter, and described relief valve is communicated with described pressure meter, and described pressure meter is communicated with described loading line.
Aforesaid rock crack checkout gear, preferably, described elastomeric bladder is the cylindrical structural with inner chamber, described gas tube axially passes described elastomeric bladder along described elastomeric bladder.
Aforesaid rock crack checkout gear, preferably, described elastomeric bladder is rubber bag tank.
Aforesaid rock crack checkout gear, preferably, the tube wall end of described gas tube has a plurality of pores.
The rock crack checkout gear that the utility model provides is full of medium by 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, and to being full of pressure air in the boring after the described elastomeric bladder shutoff, pressure-detecting device can detect the in-borehole gas pressure after the shutoff by described gas tube.Thereby, judge in the boring according to the situation of change of gas pressure whether the crack is arranged.Simultaneously, by 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
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
Fig. 1 is the structural representation of rock crack checkout gear.As shown in Figure 1, the rock crack checkout gear that provides of present embodiment comprises: comprise elastomeric bladder 1, gas tube 2, union 3 and pressure-detecting device 4.Union 3 is communicated with elastomeric bladder 1, be full of medium by union 3 to elastomeric bladder 1 after, elastomeric bladder 1 can with boring 6 shutoff tight, concrete can be full of water or air by 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, by gas tube 2 to being full of pressure air in the boring 6 after elastomeric bladder 1 shutoff, pressure-detecting device 4 can be detect the instrument of gas pressure, can detect the boring 6 interior gas pressures after the shutoff.
Preferably, elastomeric bladder 1 is for having the cylindrical structural of inner chamber, 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 larger, 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 make.
Particularly, pressure-detecting device 4 comprises relief valve 41 and pressure meter 42, relief valve 41 is communicated with pressure meter 42, pressure meter 41 is communicated with loading line, 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 from holing stops up gas tube 2.For the ease of processing and manufacturing, the tube wall end of gas tube 2 can not arrange a plurality of pores, but installs one with the tube connector of a plurality of pores, and this tube connector can be dismantled easily.Preferably, gas tube 2, union 3 and elastomeric bladder 1 are as a whole, can make so better and convenient installation of seal of elastomeric bladder 1.
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, by 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 by gas tube joint 51, the other end links to each other with pressure-detecting device 4 by high-pressure pipe connector 52, has so just become a loading line.Because in use air pressure is larger, adopt high-voltage tube 5 connect gas tubes 2 and pressure-detecting device 4 be for improve calm the anger during safety.Then will connect with the union 3 that elastomeric bladder 1 is communicated with, 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 pointer risings.Can not prevent from damaging pressure meter 42 by disposable opening relief valve 41, prescribe a time limit when boring 6 internal pressures reach on the system pressure, not want timely blowing-out, after stablizing 2 to 3 minutes, 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 by pressure meter 42, judge whether boring 6 has the situation of rock stratum gas leakage, if the pressure slow decreasing also maintains a pressure and (should be higher than a certain low pressure limit, this low pressure limit can change to some extent according to the mining area is different) lower constant, illustrate 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 until drop to zero, illustrate that this has the crack below position.
The position of elastomeric bladder 1 can be adjusted at any time, for example, can be in the position probing of 10 meters of distance hells once, if detect this crack is arranged below the position, the position of elastomeric bladder 1 adjusted to apart from the position of 20 meters of hells again detect, do not have the crack if detect 20 meters with upper/lower positions, illustrate that the position in crack is just between 10 meters to 20 meters of distance hells.In this way, can pass through repeated detection, detect accurately the position at place, crack.
The rock crack checkout gear that the utility model provides, by 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 by in this elastomeric bladder 1, being full of medium, gas tube 2 is to being full of pressure air in the boring 6 after elastomeric bladder 1 shutoff, by the situation of change of the pressure meter 42 on the pressure-detecting device 4, the pressure that detects boring 6 interior gases changes, thereby can judge in the boring 6 whether the crack is arranged.Simultaneously, by repeatedly adjusting the position of elastomeric bladder 1, can judge the position in crack.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment the utility model is had been described in detail, 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 puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. a rock crack checkout gear is characterized in that, comprises elastomeric bladder, gas tube, union and pressure-detecting device;
Described union is communicated with described elastomeric bladder, be full of medium by described union to described elastomeric bladder after, described elastomeric bladder can be tight with borehole sealing;
Described gas tube passes described elastomeric bladder; Described pressure-detecting device is communicated with described gas tube, and to being full of pressure air in the boring after the described elastomeric bladder shutoff, described pressure-detecting device can detect the in-borehole gas pressure after the shutoff by described gas tube.
2. rock crack checkout gear according to claim 1 is characterized in that, described pressure-detecting device comprises relief valve and pressure meter, and described relief valve is communicated with described pressure meter, and described pressure meter is communicated with described loading line.
3. rock crack checkout gear according to claim 1 and 2 is characterized in that, described elastomeric bladder is the cylindrical structural with inner chamber, and described gas tube axially passes described elastomeric bladder along described elastomeric bladder.
4. rock crack checkout gear according to claim 3 is characterized in that, described elastomeric bladder is rubber bag tank.
5. rock crack checkout gear according to claim 1 and 2 is characterized in that, the tube wall end of described gas tube has a plurality of pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424803 CN202745859U (en) | 2012-08-24 | 2012-08-24 | Rock stratum crack detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424803 CN202745859U (en) | 2012-08-24 | 2012-08-24 | Rock stratum crack detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745859U true CN202745859U (en) | 2013-02-20 |
Family
ID=47705276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424803 Expired - Fee Related CN202745859U (en) | 2012-08-24 | 2012-08-24 | Rock stratum crack detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797455A (en) * | 2012-08-24 | 2012-11-28 | 淮南矿业(集团)有限责任公司 | Rock stratum fracture detecting device |
| CN105003281A (en) * | 2015-07-29 | 2015-10-28 | 上海隧道工程有限公司 | Tunnel temporary isolating and blocking device and construction method for temporarily isolating and blocking tunnel |
-
2012
- 2012-08-24 CN CN 201220424803 patent/CN202745859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797455A (en) * | 2012-08-24 | 2012-11-28 | 淮南矿业(集团)有限责任公司 | Rock stratum fracture detecting device |
| CN105003281A (en) * | 2015-07-29 | 2015-10-28 | 上海隧道工程有限公司 | Tunnel temporary isolating and blocking device and construction method for temporarily isolating and blocking tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20180824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |