CN107560512A - It is a kind of using compound slotting and be layered elementary errors sinking and blasting method - Google Patents
It is a kind of using compound slotting and be layered elementary errors sinking and blasting method Download PDFInfo
- Publication number
- CN107560512A CN107560512A CN201710990222.6A CN201710990222A CN107560512A CN 107560512 A CN107560512 A CN 107560512A CN 201710990222 A CN201710990222 A CN 201710990222A CN 107560512 A CN107560512 A CN 107560512A
- Authority
- CN
- China
- Prior art keywords
- slotting
- blasting
- sinking
- parallel cut
- oblique type
- 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.)
- Pending
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
It is a kind of using compound slotting and be layered elementary errors sinking and blasting method, the present invention carries out compound slotting using inclined hole and parallel hole, and separate explosive with stemming and realize and elementary errors is layered in hole, the advantages of this method is to improving light section P. drechsleri drilling depth is very prominent, simultaneously because the advantages of power dissipation release is to reducing surrounding rock supporting is also apparent, the present invention has the characteristics that easy to operate, suitable large-scale promotion and application.
Description
Technical field
The present invention relates to a kind of method of sinking and blasting, and in particular to one kind is using compound slotting and layering elementary errors driving
The method of explosion.
Background technology
Known, with the continuous progress of science and technology, deep-well mining technology is progressively comprehensively developed and applied, but is had
Non-ferrous metal deep-well mining technology is also in primary developing stage, many deficiencies also be present, should be constantly to it in the development in future
Optimize, for example, most of digging footages are in 2.2 meters/class or so under existing well, drivage efficiency is not high, and progress is slower, and
Cost is higher, and laneway molding quality is general etc., then how to provide a kind of drivage efficiency height, while and can ensures laneway molding matter
The sinking and blasting method of amount is just into the long-term technology demand of those skilled in the art.
The content of the invention
It is insufficient present in background technology to overcome, the invention provides one kind using compound slotting and layering elementary errors pick
Enter the method for explosion, the present invention not only increases drivage efficiency, while ensure that laneway molding quality, reduces support cost.
To realize goal of the invention as described above, the present invention uses technical scheme as described below：
It is a kind of using compound slotting and be layered elementary errors sinking and blasting method, it is described compound first using compound slotting
Slotting includes the oblique type slotting of outer layer and internal layer parallel cut, and the internal layer parallel cut is arranged to multilayer, in internal layer parallel cut
Periphery multiple oblique type slottings of outer layer are set, sinking and blasting is then carried out using layering elementary errors, i.e., in the oblique type slotting of each outer layer
First time blasting charge is carried out respectively with the bottom of internal layer parallel cut, it is further, parallel with internal layer in the oblique type slotting of each outer layer
Stemming is respectively charged into slotting, it is fried then to carry out second of dress respectively in the oblique type slotting of each outer layer and internal layer parallel cut
Medicine, the length of second of blasting charge is more than the length of first time blasting charge, finally by the oblique type slotting of each outer layer and internal layer
The port of parallel cut is blocked with stemming, and advanced one section of internal layer parallel cut of the oblique type slotting of outer layer does not carry out tunneling quick-fried during explosion
It is broken.
Described is arranged to 4 using compound slotting and the method for being layered elementary errors sinking and blasting, the tiltedly type slotting, tiltedly
The angle of inclination of type slotting is 75 °, and oblique type slotting tendency slotting center, the hole depth of inclined-hole cut is 1.5 meters.
Described is arranged to 3 layers using compound slotting and the method for being layered elementary errors sinking and blasting, the parallel cut.
It is described using compound slotting and the method for being layered elementary errors sinking and blasting, the length of the stemming for 50~
60cm。
It is described to be using compound slotting and the method for being layered elementary errors sinking and blasting, the length of the first time blasting charge
130cm, the length of second of blasting charge is 140cm.
Using technical scheme as described above, the present invention has superiority as described below：
The present invention carries out compound slotting using inclined hole and parallel hole, and separates explosive with stemming and realize and elementary errors is layered in hole,
The advantages of this method is to improving light section P. drechsleri drilling depth is very prominent, simultaneously because power dissipation release is to reducing surrounding rock supporting
The advantages of be also apparent, the present invention has the characteristics that easy to operate, suitable large-scale promotion and application.
Embodiment
The present invention can be explained in more detail by the following examples, the invention is not limited in the following examples；
It is of the present invention a kind of using compound slotting and the method for being layered elementary errors sinking and blasting, is drawn first using compound
Groove, the compound slotting include the oblique type slotting of outer layer and internal layer parallel cut, and the internal layer parallel cut is arranged to multilayer, tool
In body implementation process, parallel cut sets multiple oblique types of outer layer to draw preferentially from being arranged to 3 layers in the periphery of internal layer parallel cut
Groove, in specific implementation process, oblique type slotting is arranged to 4, and the angle of inclination of oblique type slotting is 75 °, and slotting is inclined in oblique type slotting
Center, the hole depth of inclined-hole cut is 1.5 meters；
Further, sinking and blasting is carried out using layering elementary errors, i.e., in the oblique type slotting of each outer layer and the bottom of internal layer parallel cut
First time blasting charge is carried out respectively, further, is respectively charged into stemming in the oblique type slotting of each outer layer and internal layer parallel cut, institute
The length for stating stemming is 50~60cm, in specific implementation process, preferably 60cm, is then put down in the oblique type slotting of each outer layer and internal layer
Second of blasting charge is carried out in row slotting respectively, the length of second of blasting charge is more than the length of first time blasting charge, tool
In body implementation process, the length of the first time blasting charge is 130cm, and the length of second of blasting charge is 140cm, finally will be every
The port of the oblique type slotting of individual outer layer and internal layer parallel cut is blocked with stemming, and the length of port stemming is 50 cm, during explosion outside
Tiltedly advanced one section of internal layer parallel cut of type slotting does not carry out sinking and blasting to layer.
It should be noted that the oblique type slotting of outer layer one section of advanced internal layer parallel cut does not refer to same position, outer layer is oblique
Type slotting is prior to internal layer parallel cut explosion, to provide the scope of freedom during internal layer parallel cut explosion.
The specific embodiment of the present invention is as follows：
Compound slotting is carried out by design requirement, outer layer is oblique type slotting, and oblique type slotting is arranged to 4 75 degree of inclined holes, and tendency is drawn
Groove center, 1.5 meters of hole depth, 3 layers of parallel cut hole of internal layer.Drilling hole amount is 55.During construction drill, inclined hole as far as possible not with its
Its keyhole intersects.
Explosion is layered, outer layer powder charge 140cm, internal layer powder charge using layering short-delay blasting with the stemming of 50~60cm length
130cm, aperture are blocked with the long stemmings of 50cm.One, advanced internal layer hole of outer hole section is other during explosion, and outer layer fills the medicines of volume 7, and internal layer fills 8
Roll up medicine.Periphery hole is identical with conventional blasting method, without In-hole short delay.
Cyclic advance increases 3.2 meters or so (drilling 3.5m on the basis of 2.2 meters " year-on-year live actual progress "
It is long)；Explosive specific charge falls below 0.66kg/t or so from original 0.9kg/t；Drilling hole amount drops to 55 from original more than 60,
But need to increase by 35 detonators.Significance of which is：
1st, driving progress is accelerated：Tunnelling（Including ramp, No. 2 footrills and mining tunnel etc.）It is expected to reach the 90m/ months；
2nd, total blasting cost declines at least 10%；
3rd, great technical support is played to the application and popularizations of drill jumbo, because artificial brill can not can guarantee that it is inclined compared with gun drilling
Difference；
4th, supported in theory：Explosive specific charge is 2 times or so of more scope of freedom explosive specific charges under the conditions of Single free-face, more then
Make unnecessary energy damages country rock.Here it is why excessively excavating and excessive supporting occur in many mines.
Part not in the detailed description of the invention is prior art.
The embodiment selected herein for the open purpose of the present invention, is presently considered to be suitable, still, Ying Liao
Solution, it is contemplated that all changes and improvement including all embodiments belonged in this design and invention scope.
Claims (5)
1. it is a kind of using compound slotting and be layered elementary errors sinking and blasting method, it is characterized in that：Compound slotting is used first,
The compound slotting includes the oblique type slotting of outer layer and internal layer parallel cut, and the internal layer parallel cut is arranged to multilayer, inside
The periphery of layer parallel cut sets multiple oblique type slottings of outer layer, then carries out sinking and blasting using layering elementary errors, i.e., each outer
Tiltedly the bottom of type slotting and internal layer parallel cut carries out first time blasting charge to layer respectively, further, in the oblique type slotting of each outer layer
With stemming is respectively charged into internal layer parallel cut, then carry out respectively in the oblique type slotting of each outer layer and internal layer parallel cut
Secondary blasting charge, the length of second of blasting charge are more than the length of first time blasting charge, finally draw the oblique type of each outer layer
The port of groove and internal layer parallel cut is blocked with stemming, and advanced one section of internal layer parallel cut of the oblique type slotting of outer layer is not entered during explosion
Row sinking and blasting.
2. it is according to claim 1 using compound slotting and be layered elementary errors sinking and blasting method, it is characterized in that：It is described
Oblique type slotting is arranged to 4, and the angle of inclination of oblique type slotting is 75 °, oblique type slotting tendency slotting center, the hole depth of inclined-hole cut
For 1.5 meters.
3. it is according to claim 1 using compound slotting and be layered elementary errors sinking and blasting method, it is characterized in that：It is described
Parallel cut is arranged to 3 layers.
4. it is according to claim 1 using compound slotting and be layered elementary errors sinking and blasting method, it is characterized in that：It is described
The length of stemming is 50~60cm.
5. it is according to claim 1 using compound slotting and be layered elementary errors sinking and blasting method, it is characterized in that：It is described
The length of first time blasting charge is 130cm, and the length of second of blasting charge is 140cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990222.6A CN107560512A (en) | 2017-10-23 | 2017-10-23 | It is a kind of using compound slotting and be layered elementary errors sinking and blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990222.6A CN107560512A (en) | 2017-10-23 | 2017-10-23 | It is a kind of using compound slotting and be layered elementary errors sinking and blasting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107560512A true CN107560512A (en) | 2018-01-09 |
Family
ID=60985840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710990222.6A Pending CN107560512A (en) | 2017-10-23 | 2017-10-23 | It is a kind of using compound slotting and be layered elementary errors sinking and blasting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560512A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696770A (en) * | 2013-12-17 | 2014-04-02 | 武汉工程大学 | Cutting raise cutting method used in underground mining |
| CN205537381U (en) * | 2016-01-22 | 2016-08-31 | 河北钢铁集团矿业有限公司 | Deep hole blasting simultaneous shaft -sinking's big gun hole arrangement structure in non - colliery mountain |
| CN205561688U (en) * | 2016-02-03 | 2016-09-07 | 中南大学 | Go up big gun hole arrangement structure to medium -length hole undercutting blasting |
-
2017
- 2017-10-23 CN CN201710990222.6A patent/CN107560512A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696770A (en) * | 2013-12-17 | 2014-04-02 | 武汉工程大学 | Cutting raise cutting method used in underground mining |
| CN205537381U (en) * | 2016-01-22 | 2016-08-31 | 河北钢铁集团矿业有限公司 | Deep hole blasting simultaneous shaft -sinking's big gun hole arrangement structure in non - colliery mountain |
| CN205561688U (en) * | 2016-02-03 | 2016-09-07 | 中南大学 | Go up big gun hole arrangement structure to medium -length hole undercutting blasting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106121648B (en) | Sublevel open stoping chassis route ore drawing subsequent filling mining method | |
| CN109236295B (en) | Three-step stoping method suitable for deep thick and large ore deposit | |
| CN102878876B (en) | Mine roadway advancing and undermining method and main blasting parameters | |
| CN108132006B (en) | Anti-clogging quick well formation undercut blast hole arragement construction and its blasting method | |
| CN107165636B (en) | A kind of method of strip pit exploitation | |
| CN102182461A (en) | Efficient mining method for thick metal ore body in slanting | |
| CN1693662A (en) | Improved sublevel caving method without bottom column | |
| CN105386766B (en) | The reinforcement presplitting method for protecting support of the extremely broken upper disk top plate of shallow hole shrinkage method exploitation | |
| 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 | |
| CN110530219B (en) | Controlled blasting method for reducing loss and dilution | |
| CN102261248A (en) | Sill-pillar-free stage caving stopping method based on creasing-type structure | |
| CN104265297B (en) | The exploitation method of the frangible Synergism inhibition of a kind of multilayer | |
| CN109630120B (en) | Mining method for gentle dip lean and rich common-layer ore body | |
| CN112796758A (en) | High-segmentation non-cutting raise broaching and medium-length hole stage open stoping subsequent filling mining method | |
| CN104654949B (en) | A kind of method preventing big gun hole collapse hole from realizing smooth powder charge | |
| CN105422102B (en) | A kind of vertical medium-length hole ore blast subsection access back-filling method | |
| CN110440649A (en) | Hydraulic drill ring drilling large cross-section tunnel steel for shot structure and blasting method | |
| CN106225613A (en) | A kind of efficient segmentation method of ignition in tunnel excavating process | |
| CN106288991B (en) | A kind of underground mining cuts kerve method of going up a hill | |
| CN107525443A (en) | The explosion method of ignition of fan shaped medium length hole | |
| CN103437766A (en) | In-situ fragmentation mining method | |
| CN106150505B (en) | Efficient fine blasting method for ultrathin ore body | |
| CN105863727B (en) | Method for treating pillar goaf | |
| RU2334875C1 (en) | Method of underground mining of steep field of firm mineral | |
| CN107560508A (en) | A kind of blasting method for being used to cut well simultaneous shaft sin king |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |
|
| RJ01 | Rejection of invention patent application after publication |