CN211116103U - Blind lane gas discharge structure - Google Patents
Blind lane gas discharge structure Download PDFInfo
- Publication number
- CN211116103U CN211116103U CN201921788509.1U CN201921788509U CN211116103U CN 211116103 U CN211116103 U CN 211116103U CN 201921788509 U CN201921788509 U CN 201921788509U CN 211116103 U CN211116103 U CN 211116103U
- Authority
- CN
- China
- Prior art keywords
- roadway
- blind
- drill site
- tunneling
- gas
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a structure is administered to colliery gas, specifically is a blind lane gas emission structure. The technical problem of safe through of a tunneling roadway and a closed blind roadway is solved, the safe through of the tunneling roadway and the closed blind roadway is achieved, the tunneling roadway is located in the closed area, the tunneling roadway direction and the blind roadway are arranged in a crossed mode, a left drill site and a right drill site are arranged on two sides of a head area of the tunneling roadway, a drawing hole is formed in the left drill site and faces the blind roadway, a drawing and emptying hole is formed in the right drill site and faces the blind roadway, the drawing and emptying holes in the two sides are communicated with the blind roadway, and a drawing and emptying pipe is connected to the drawing hole in one side of the drawing and emptying hole. Therefore, the harmful gas in the blind roadway can be sucked out through the negative pressure of the pumping and discharging pipe, and the harmful gas can be discharged through the discharging treatment for a certain time. And then, tunneling forwards at the head-on position until the two roadways are communicated.
Description
Technical Field
The utility model relates to a structure is administered to colliery gas, specifically is a blind lane gas emission structure.
Background
In coal mining, the geological condition of the coal seam is complex. The gas is a special gas of a storage bin in a coal mine, and is one of main factors causing coal mine accidents, so that the gas is one of important works in coal mining. The main means for controlling the gas is to continuously extract and discharge the gas, so that the concentration of the gas in a working area is lower than a dangerous index. In actual production, a situation often occurs that in a certain area, a roadway is mined out, sealing treatment is carried out after use, and gas is continuously emitted in a sealed environment, so that the concentration of the gas in the sealed blind roadway is extremely high. In other roadway construction, the blind roadway with the closed roadway may need to be communicated. The conventional construction scheme is to directly communicate with a blind roadway and then discharge gas, and the scheme has many unsafe factors, such as: the hazardous and harmful gas can not be predicted, and the danger is large, the time consumption is long and other unsafe factors are caused in the process of large gas emission in the blind roadway. Therefore, a need exists for a safe and reliable blind-lane penetration technique.
Disclosure of Invention
The utility model discloses a solve the technical problem that the safety of tunnelling tunnel and closed blind lane link up, provide a blind lane gas emission structure.
The technical scheme of the utility model, a blind lane gas emission structure, including blind lane, closed area, the tunnelling tunnel be located closed area, and tunnelling tunnel direction and blind lane cross arrangement, set up left side drill site and right drill site in the regional both sides of the meeting head in tunnelling tunnel, set up towards blind lane in left drill site and take out the hole, set up towards blind lane in right drill site and take out the evacuation, the take out hole of both sides all link up with blind lane, connect on the take out hole of one side wherein and take out the pipe.
Therefore, the harmful gas in the blind roadway can be sucked out through the negative pressure of the pumping and discharging pipe, and the harmful gas can be discharged through the discharging treatment for a certain time. And then, tunneling forwards at the head-on position until the two roadways are communicated.
Compared with the prior art, the utility model discloses a take out the hole in specific position construction, discharge harmful gas before the tunnel link up, finally will seal in the tunnel gas concentration and fall to the regulation within range after, can make the tunnel link up the construction safer.
Drawings
Fig. 1 is a schematic structural view of the present invention; fig. 2 is a view taken along direction a of fig. 1.
In the figure, 1-blind roadway 2-closed area 3-drainage hole 4-right drill site 5-drainage pipe 6-tunneling roadway 7-left drill site 8-head-on area.
Detailed Description
As shown in fig. 1, the blind roadway gas discharge structure comprises a blind roadway 1, a closed area 2 and a tunneling roadway 6, wherein the tunneling roadway 6 is located in the closed area 2, the direction of the tunneling roadway 6 is crossed with the blind roadway 1, a left drill site 7 and a right drill site 4 are arranged on two sides of a head-on area 8 of the tunneling roadway 6, a suction hole is arranged in the left drill site 7 and faces the blind roadway, a suction hole 3 is arranged in the right drill site 4 and faces the blind roadway, the suction holes on two sides are communicated with the blind roadway 1, and a suction pipe 5 is connected to the suction hole 3 on one side.
The vertical distance between the head-on area 8 and the blind roadway 1 is not less than 10 meters. Is a safe distance.
As shown in fig. 2, the plurality of drawing holes are divided into an upper row and a lower row, the distance between the drawing holes is 0.8 m, the lower row of drawing holes is 1.4 m away from the bottom surface, and the distance between the upper row of drawing holes and the lower row of drawing holes is 1.4 m.
The specific operation under the well adopts the following scheme that when the head-on distance of a driving tunnel is 30 meters away from an empty tunnel, the driving is stopped to carry out water detection and drainage, gas collection is carried out by adopting water detection and drainage holes, and the gas sample components are analyzed;
and after water exploration and drainage are finished and gas analysis is finished, continuing tunneling the head-on area to a through position for 10 meters, stopping tunneling, and constructing a left drill site and a right drill site on two sides of the roadway. And (4) drilling, wherein the construction drill hole is used for exhausting and discharging the gas in the blind roadway. And starting, penetrating and discharging the gas after the gas in the blind lane is determined to be reduced to below 1.0%.
Claims (3)
1. A blind lane gas discharges structure which characterized in that: including blind roadway (1), closed area (2), tunnelling tunnel (6) be located closed area (2), and tunnelling tunnel (6) direction and blind roadway (1) cross arrangement, set up left side drill site (7) and right side drill site (4) in the first region (8) both sides of tunnelling tunnel (6), set up the drainage hole towards blind roadway in left side drill site (7), set up drainage hole (3) towards blind roadway in right side drill site (4), the drainage hole of both sides all link up with blind roadway (1), connect on drainage hole (3) of one side wherein and take out pipe (5).
2. The blind roadway gas discharge structure of claim 1, wherein: the vertical distance between the head-on area (8) and the blind roadway (1) is not less than 10 meters.
3. The blind roadway gas discharge structure of claim 1, wherein: the drawing holes are divided into an upper row and a lower row, the distance between the drawing holes is 0.8 m, the lower row of the drawing holes is 1.4 m away from the bottom surface, and the upper row of the drawing holes is 1.4 m away from the lower row of the drawing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788509.1U CN211116103U (en) | 2019-10-23 | 2019-10-23 | Blind lane gas discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788509.1U CN211116103U (en) | 2019-10-23 | 2019-10-23 | Blind lane gas discharge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116103U true CN211116103U (en) | 2020-07-28 |
Family
ID=71694431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921788509.1U Active CN211116103U (en) | 2019-10-23 | 2019-10-23 | Blind lane gas discharge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196610A (en) * | 2020-09-23 | 2021-01-08 | 贵州大学 | Water drilling mining structure for eliminating gas outburst of inclined coal seam and mining method thereof |
-
2019
- 2019-10-23 CN CN201921788509.1U patent/CN211116103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196610A (en) * | 2020-09-23 | 2021-01-08 | 贵州大学 | Water drilling mining structure for eliminating gas outburst of inclined coal seam and mining method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110656937B (en) | Fluidized coal gas simultaneous mining system and method | |
| WO2018201706A1 (en) | Method for efficient gas drainage in coal roadway strips and regional outburst elimination through staged fracturing with long borehole floor beddings | |
| CN100526606C (en) | Method for extracting protruded coal-bed downward bedding long-borehole step-by-step covering area gas | |
| CN104481578B (en) | A kind of high gas layer large-mining-height working surface mash gas harnessing method | |
| CN111828007B (en) | Stoping method for residual studs in underground mine goaf | |
| CN107120137B (en) | A kind of coal roadway tunneling is along seat earth Deephole pre-splitting blasting pumping method | |
| CN103899350B (en) | Fully mechanized coal face frame carries top coal gas drainage system | |
| CN103939135B (en) | A kind of fully-mechanized mining working removes frame passage rapid constructing method | |
| CN103089267A (en) | Thin-ore-body shallow hole shrinkage method without sill pillar | |
| CN104329113B (en) | A kind of method of surface drilling standing seat earth release mash gas extraction | |
| CN104088638B (en) | Large-inclination-angle coal bed longwell large-mining-height working surface coal wall caving and roof fall control technology | |
| CN102943690A (en) | Method for preventing and treating separation layer water of top plate of coal face | |
| CN108397227A (en) | A kind of progressive extinction roadway layout method of tendency | |
| CN113653492B (en) | Method for preventing rock burst in filling mining | |
| CN106285770B (en) | A kind of method that working seam bottom plate mud stone increases closely projecting coal bed group's gas permeability as protective layer | |
| US11976557B2 (en) | Coal bump control method for sectional hydraulic fracturing regions of near vertical ultra thick coal seam | |
| CN207847676U (en) | A kind of high prominent U-shaped ventilating system of mine coal-cutting working face | |
| CN211116103U (en) | Blind lane gas discharge structure | |
| CN108505999A (en) | A kind of high prominent more lane method for arranging of working face of coal seam | |
| CN117108283B (en) | Fluidized coal mining method utilizing self energy storage of coal seam | |
| CN204327172U (en) | Formula boring goaf extraction structure before and after high-rise position | |
| CN105240017A (en) | Block-shaped cutting, jacking and pushing ore removal mining method of double-layer extreme-thin jade mine | |
| CN110359910B (en) | Fully mechanized caving high-level filling mining method for thick coal seam strips under coal mine railway | |
| CN103982184B (en) | Underground mine oper cylinler caved stopes falls the directed landing control method of ore | |
| CN105401976A (en) | Outburst prevention measure in wire saw joint-cutting region of coal seam floor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |