CN101261104B - Crack rock laneway molding control method - Google Patents
Crack rock laneway molding control method Download PDFInfo
- Publication number
- CN101261104B CN101261104B CN2008101043526A CN200810104352A CN101261104B CN 101261104 B CN101261104 B CN 101261104B CN 2008101043526 A CN2008101043526 A CN 2008101043526A CN 200810104352 A CN200810104352 A CN 200810104352A CN 101261104 B CN101261104 B CN 101261104B
- Authority
- CN
- China
- Prior art keywords
- plane
- fissure
- control method
- laneway
- molding control
- 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.)
- Expired - Fee Related
Links
- 239000011435 rock Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000465 moulding Methods 0.000 title claims description 18
- 239000002360 explosive Substances 0.000 claims abstract description 10
- 238000005422 blasting Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000005474 detonation Methods 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a cranny rock mass laneway forming and control method. A working surface is provided with periphery shot holes. When the working surface has a bigger fissure plane, the included angle between the connecting line of the two periphery shot holes of the two sides of the fissure plane and the fissure plane ranges from 45 degree to 90 degree, and the periphery shot holes on the two sides of the fissure plane are arranged symmetrically and are chiseled in parallel as much as possible. When the detonation is performed, the detonation tier number is increased and the explosive load of the complete section is decreased, particular the explosive load of the single detonation section. Therefore, the effect of smooth surface blasting is greatly improved, the traced hole rate is up to more than 85 percent, the laneway smooth surface blasting quality is improved, the laneway overexcavation quantity is reduced, the laneway forming regularity is guaranteed, the gunning material is reduced and the stability of the laneway rock mass is improved.
Description
Technical field
The present invention relates to a kind of stone drifting technology, relate in particular to a kind of crack rock laneway molding control method.
Background technology
When carrying out stone drifting, when running into fissure-plane on the working face, during especially bigger fissure-plane.Because the influence of fissure-plane makes the perimeter blasting crackle not connect smoothly, reduce tunnel photoface exploision quality, make the laneway molding regularity poor, the gunite material use amount is big, the poor stability of roadway surrounding rock.
Summary of the invention
The purpose of this invention is to provide a kind ofly when running into fissure-plane on the working face, can make the perimeter blasting crackle connect smoothly, improve the crack rock laneway molding control method of tunnel photoface exploision quality.
The objective of the invention is to be achieved through the following technical solutions:
Crack rock laneway molding control method of the present invention is included in and arranges periphery hole on the working face, and when running into fissure-plane on the working face, the line of two periphery holes of described fissure-plane both sides and the angle of described fissure-plane are 45 °～90 °.
As seen from the above technical solution provided by the invention, crack rock laneway molding control method of the present invention, owing on working face, arrange periphery hole, when running into fissure-plane on the working face, the line of two periphery holes of described fissure-plane both sides and the angle of described fissure-plane are 45 °～90 °.Make the perimeter blasting crackle to connect smoothly, improve the crack rock laneway molding control method of tunnel photoface exploision quality.
Description of drawings
Fig. 1 is for arranging the periphery hole schematic diagram on the working face of crack among the present invention.
The specific embodiment
Crack rock laneway molding control method of the present invention, its preferable specific embodiment as shown in Figure 1, when on working face, arranging periphery hole, when running into fissure-plane on the working face, especially bigger fissure-plane, the line of two periphery holes of fissure-plane both sides and the angle of fissure-plane are 45 °～90 °, can be 60 °, 75 ° etc., also can be other angles.
At periphery hole cloth at the moment, can make the big gun hole be arranged symmetrically in the fissure-plane both sides, to guarantee the molding effect of tunnel-surrounding, symmetric arrangement described here as far as possible, be not to refer to mathematical absolute symmetry, and be meant that the big gun hole of fissure-plane both sides is equal to the distance of fissure-plane both sides.
The periphery hole of fissure-plane both sides should be parallel, and need detonate simultaneously, guarantees that the stress that superposes can improve the crack state, makes the perimeter blasting crackle to connect smoothly.
The present invention can combine with the short-delay blasting theory, optimizes blasting parameter.Can increase the hop count that detonates, reduce full face explosive payload, particularly reduce the explosive payload that single hop detonates.Full face explosive payload when normally detonating full section explosive payload 70～90%, as 80% etc.
The present invention makes the effect of photoface exploision obtain improving greatly, and eye trace rate reaches more than 85%.Improve tunnel photoface exploision quality, reduced the overbreak of opening amount, guaranteed that laneway molding is regular, reduced gunite material, improved the stability of roadway surrounding rock.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1. a crack rock laneway molding control method is included in and arranges periphery hole on the working face, it is characterized in that, when running into fissure-plane on the working face, the line of two periphery holes of described fissure-plane both sides and the angle of described fissure-plane are 45 °～90 °.
2. crack rock laneway molding control method according to claim 1 is characterized in that, the periphery hole of described fissure-plane both sides equates to the distance of described fissure-plane.
3. crack rock laneway molding control method according to claim 1 and 2 is characterized in that, the parallel cutter of periphery hole of described fissure-plane both sides advances.
4. crack rock laneway molding control method according to claim 3 is characterized in that, the periphery hole of described fissure-plane both sides detonates when detonating simultaneously.
5. crack rock laneway molding control method according to claim 1 and 2 is characterized in that, the periphery hole of described fissure-plane both sides detonates when detonating simultaneously.
6. crack rock laneway molding control method according to claim 1 is characterized in that, when described working face detonates, full face explosive payload when normally detonating full section explosive payload 70～90%.
7. crack rock laneway molding control method according to claim 6 is characterized in that, when described working face detonates, full face explosive payload when normally detonating full section explosive payload 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101043526A CN101261104B (en) | 2008-04-17 | 2008-04-17 | Crack rock laneway molding control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101043526A CN101261104B (en) | 2008-04-17 | 2008-04-17 | Crack rock laneway molding control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101261104A CN101261104A (en) | 2008-09-10 |
| CN101261104B true CN101261104B (en) | 2011-01-05 |
Family
ID=39961708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101043526A Expired - Fee Related CN101261104B (en) | 2008-04-17 | 2008-04-17 | Crack rock laneway molding control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101261104B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708730B (en) * | 2018-05-31 | 2019-12-03 | 安徽理工大学 | The weak bonding of one kind, more crack rich water rock gangways preset the molding method of edge hole smooth surface |
| CN114165237B (en) * | 2021-12-02 | 2023-06-27 | 紫金矿业集团股份有限公司 | Wall protection opposite pressure blasting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634691A (en) * | 1994-07-13 | 1997-06-03 | Sungkyong Engineering & Construction Limited | Method for excavating a working face by blasting |
| CN1434191A (en) * | 2002-01-25 | 2003-08-06 | 中国人民解放军工程兵第四十一旅 | Bore construction method by bore explosion |
| CN1844590A (en) * | 2005-04-07 | 2006-10-11 | 马国彦 | Borehole parameter selection method for rock mass reinforcement |
| UA23217U (en) * | 2007-01-03 | 2007-05-10 | State Entpr Scient Res Mining | Method for implementation of drill-blast operations at pits |
| CN101063408A (en) * | 2006-04-29 | 2007-10-31 | 梁绍文 | Method for rock drifting |
-
2008
- 2008-04-17 CN CN2008101043526A patent/CN101261104B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634691A (en) * | 1994-07-13 | 1997-06-03 | Sungkyong Engineering & Construction Limited | Method for excavating a working face by blasting |
| CN1434191A (en) * | 2002-01-25 | 2003-08-06 | 中国人民解放军工程兵第四十一旅 | Bore construction method by bore explosion |
| CN1844590A (en) * | 2005-04-07 | 2006-10-11 | 马国彦 | Borehole parameter selection method for rock mass reinforcement |
| CN101063408A (en) * | 2006-04-29 | 2007-10-31 | 梁绍文 | Method for rock drifting |
| UA23217U (en) * | 2007-01-03 | 2007-05-10 | State Entpr Scient Res Mining | Method for implementation of drill-blast operations at pits |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101261104A (en) | 2008-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017092306A1 (en) | Medium-length hole large cross-section composite cut blasting structure and method | |
| CN102519328B (en) | Stone drift driving method adopting technologies of water cutting and cut blasting | |
| CN104453904A (en) | Sublevel filling mining method without drawing groove | |
| CN103696770B (en) | Underground mining upward incise kerve method | |
| CN102109304A (en) | Directional rock blasting crack propagation method and device | |
| CN102878876A (en) | Mine roadway advancing and undermining method and main blasting parameters | |
| CN102494571A (en) | Construction method for damped blasting of tunnels | |
| CN102146795B (en) | Explosive shield machine | |
| CN105937395A (en) | Fast and highly-efficient tunneling method for large section of hard-rock tunnel in coal mine by combination of fully-mechanized tunneling and blasting driving | |
| CN105202984A (en) | Blasting method for improving step deep hole blasting quality by using auxiliary blast holes | |
| CN105569659A (en) | Tunnel hydraulic cutting line oriented blasting roof cutting pressure relief method | |
| CN204188084U (en) | Directed presplit blasting device | |
| CN101261103B (en) | Alignment hole strong cutting method | |
| CN101419040A (en) | Deep hole blasting method in large aperture composite undermine | |
| CN104864782A (en) | Hard stone drift composite reinforcing vertical wedge cutting method | |
| CN104453898A (en) | Deep hole blasting and static water injecting combining coal seam weakening method | |
| CN101261104B (en) | Crack rock laneway molding control method | |
| CN202836383U (en) | Mine heading cutting blast hole structure | |
| CN104654949A (en) | Method of smooth powder charge for preventing blast hole from collapsing | |
| CN102519323B (en) | Pre-splitting blasting method for joint-cutting pipe | |
| CN103697775A (en) | Method of loose blasting by high-pressure water jet helical cutting | |
| CN202562373U (en) | Multidirectional shaped charge type blasting device | |
| CN106352749B (en) | A kind of method of tunnelling periphery hole homogeneous energy explosion | |
| CN107702603A (en) | A kind of powder charge construction method for photoface exploision | |
| CN2929645Y (en) | Rock oriented break blasting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20170417 |