CN110030889A - A kind of method of deep hole subregion triangulation network slotting shaft formatting by one blasting - Google Patents
A kind of method of deep hole subregion triangulation network slotting shaft formatting by one blasting Download PDFInfo
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- CN110030889A CN110030889A CN201910306775.4A CN201910306775A CN110030889A CN 110030889 A CN110030889 A CN 110030889A CN 201910306775 A CN201910306775 A CN 201910306775A CN 110030889 A CN110030889 A CN 110030889A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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Abstract
A kind of method of deep hole subregion triangulation network slotting shaft formatting by one blasting, the present invention studies the key technology of underground technique of blasting excavation for shaft, solves the critical issue in Blasting Excavation, and underground shaft onepull excavation is proposed into novel construction method-deep hole subregion triangulation network slotting simultaneous shaft sin king of well, effectively raise construction efficiency, productivity has been liberated, there is significant economic benefit and social benefit, be suitble to large-scale promotion and application.
Description
Technical field
The present invention relates to a kind of methods of shaft formatting by one blasting, and in particular to a kind of deep hole subregion triangulation network slotting is once quick-fried
The method for being broken into well.
Background technique
Known, there are mainly two types of methods, i.e. downlink construction method, uplink construction method for traditional Construction Technique of Shaft.Wherein
Downlink construction method, i.e. drilling from top to bottom explosion, discharge fume, get rid of the danger, slagging tap, modifying, supporting, measurement etc., so repeatedly follow repeatedly
Ring, stage excavation gradually downward, until digging through well.With this construction method, because of underground work faciostenosis, divulges information and be stranded
Difficult, lifting is frequently, operating condition is severe, work efficiency is low, and when meeting falling object or plate indicates nature of danger, underground operators are nowhere hidden,
Therefore the excavating shaft in fragmented rock body, belong to one of large labor intensity, the operation of safe Customers ' Legal Right.Since Sidewall Surrounding Rock clamps down on item
Part is determined that the explosion of the driving explosive payload of downlink construction method disturbs than more serious, in the feelings that rock is more broken rock convergence measure
Under condition, so that the borehole wall often occurs backbreaking or collapsing phenomenon, many difficulties are brought to subsequent construction.In addition, in circulation driving
Blast disturbance is repeated, the cumulative effect of neighbouring tunnel country rock also can not be ignored, it is further that it can lead to the rock mass being crushed
It loosens, the tunnel lining system structure already under the effect of country rock complex stress is made to make the matter worse.The brill of this construction method
Quick-fried operation, the also restriction by the supporting age of concrete in last circulation, cause construction period to lengthen, it is difficult to meet Construction of Silo
Progress demand.
The traditional excavation method of another kind of vertical shaft is uplink construction method, it be by cage or job platform from bottom to top
Carry out tunneling construction.This construction method, it all has in addition to not slagging tap in well manually, the shortcomings that downlink construction method, and
Risk is bigger.
Underground shaft construction has excavation difficulty high, security risk big, long construction period, production cost height etc. are a series of to ask
Topic, problem above directly affect national project construction, also perplex unit in charge of construction always.
Summary of the invention
To overcome deficiency present in background technique, the present invention provides a kind of deep hole subregion triangulation network slotting onepulls
The method of Cheng Jing, the present invention study the key technology of underground technique of blasting excavation for shaft, solve the pass in Blasting Excavation
Key problem, and propose underground shaft onepull excavate at well novel construction method-deep hole subregion triangulation network slotting simultaneous shaft sin king,
Construction efficiency is effectively raised, productivity has been liberated, there is significant economic benefit and social benefit.
To realize that goal of the invention as described above, the present invention use technical solution as described below:
A kind of method of deep hole subregion triangulation network slotting shaft formatting by one blasting, specifically comprises the following steps:
The first step digs chamber:
Chamber is excavated out in the bottom and top of quasi- excavating shaft first, when intending reaching earth's surface at the top of excavating shaft,
Without excavating chamber at top；
Second step, arrangement blasthole simultaneously drill:
It takes the next step, use deep hole rig to drill along vertical shaft full section height in vertical shaft, all blastholes are once constructed in place, in vertical shaft
The arrangement triangulation network slotting of slotting disintegrating area is entreated to crush hole and emptying aperture, the avalanche between central slotting disintegrating area and vertical shaft edge is broken
Area arranges that avalanche is crushed hole, and pre- ceasma is arranged on shaft excavation edge；
Third step, blast hole projectile filling:
Take the next step, slotting crushes hole and avalanche and is crushed hole using coupling charging or Uncoincided charge, pre- ceasma is using not coupling
Medicine is attached together, in the blasthole using coupling charging and decoupling charge structure, central location arranges that two hairs are accurate and delays in hole
Detonating capsule, two hair detonator standoff distances are 800~1200mm, and the stemming length at blasthole both ends is the straight of 20~25 times of blastholes
Diameter, fills full explosive when coupling charging, in blasthole, explosive and blasthole wall are in close contact；Explosive is not when Uncoincided charge, in blasthole
Be packed full with, blasthole axially or radially there are gaps；
4th step, setting blasting network and detonation:
It takes the next step, explosion, the sequence of each shot hole blasting is carried out using delays time to control blasting technique are as follows: detonation arrangement first
Pre- ceasma at vertical shaft edge, forms precracking along shaft excavation contour line, and the slotting for slotting disintegrating area of then detonating crushes
The rock of slotting disintegrating area is crushed the area Bing Gai and forms slotting chamber by hole；Finally the avalanche of detonation avalanche fracture area is crushed hole, collapses
The avalanche for falling fracture area is crushed hole according to the sequence from inner lane to outer ring, and one encloses orderly detonation or hole-by-hole initiation；
5th step is slagged tap and borehole wall supporting:
It taking the next step, after the completion of explosion, quick-fried slag falls automatically in well, and lower roadway construction personnel are slagged tap with dirt loader, with
The gradually whereabouts of quick-fried slag, construction personnel carry out brushing and bolt-mesh-spurting supporting to vertical shaft by the top of the slag, can both exempt taking repeatedly in this way
If removing job platform, loose swollen and collapsing excessive prevented also from Sidewall Surrounding Rock stress release, quick-fried slag shipment is finished, borehole wall brushing
And supporting is also completed immediately.
The method of the deep hole subregion triangulation network slotting shaft formatting by one blasting, the method for arranging of blasthole are selected perpendicular first
The center of well is slotting disintegrating area, and slotting is crushed hole and arranged with the arrangement mode of equilateral triangle, in the centroid of equilateral triangle
Emptying aperture is arranged in position, and slotting crushes hole and emptying aperture cooperates, and after slotting crushes hole detonation, forms one and vertical shaft in slotting disintegrating area
A contour circular cavity, the explosion for being crushed hole for avalanche provide the scope of freedom and quick-fried slag accommodation space, and slotting is arrived except disintegrating area
Shaft excavation edge line is avalanche fracture area, and avalanche fracture area arranges that avalanche is crushed hole, and avalanche is crushed hole with central disintegrating area and is
Center, form circumferentially are arranged in the outline excavation sideline of vertical shaft and are crushed between the triangle web area that hole forms by slotting,
Avalanche is crushed hole and is crushed the progress avalanche of avalanche fracture area rock, and pre- ceasma is arranged on the outline excavation sideline of vertical shaft, presplitting
After the detonation of hole, precracking is formed along excavation contour line, by the rock mass point outside excavation area rock mass in vertical shaft contour line and contour line
From.
The method of the deep hole subregion triangulation network slotting shaft formatting by one blasting, the diameter that the slotting crushes hole is 75mm
~250mm, wherein it is preferred that 80mm~150mm.
The method of the deep hole subregion triangulation network slotting shaft formatting by one blasting, the diameter of the pre- ceasma be 50mm~
210mm。
The method of the deep hole subregion triangulation network slotting shaft formatting by one blasting, the avalanche be crushed hole diameter be 75~
250mm。
The method of the deep hole subregion triangulation network slotting shaft formatting by one blasting, the time interval of the delayed ignition are 10
~20ms.
Using technical solution as described above, the present invention has superiority as described below:
The present invention studies the key technology of underground technique of blasting excavation for shaft, and the key solved in Blasting Excavation is asked
Topic, and propose underground shaft onepull excavation at novel construction method-deep hole subregion triangulation network slotting simultaneous shaft sin king of well, effectively
Improve construction efficiency, liberated productivity, have significant economic benefit and social benefit, be suitble on a large scale promote and
Using.
Detailed description of the invention
Fig. 1 is the schematic diagram of shaft formatting by one blasting of the present invention；
Fig. 2 is the schematic diagram of steel for shot in the present invention；
Fig. 3 is the schematic diagram of coupling charging in the present invention；
Fig. 4 is the schematic diagram of Uncoincided charge in the present invention；
Specific embodiment
The present invention can be explained in more detail by the following examples, the invention is not limited to the following examples；
A kind of method of deep hole subregion triangulation network slotting shaft formatting by one blasting in conjunction with described in attached drawing 1~4, specifically include as
Lower step:
The first step digs chamber:
As shown in Figure 1, excavating out chamber in the bottom and top of quasi- excavating shaft first, intending stretching at the top of excavating shaft
When to earth's surface, without excavating chamber at top；
Second step, arrangement blasthole simultaneously drill:
It takes the next step, use deep hole rig to drill along vertical shaft full section height in vertical shaft, all blastholes are once constructed in place, in vertical shaft
The arrangement triangulation network slotting of slotting disintegrating area is entreated to crush hole and emptying aperture, the avalanche between central slotting disintegrating area and vertical shaft edge is broken
Area arranges that avalanche is crushed hole, and pre- ceasma is arranged on shaft excavation edge；The slotting crush hole diameter be 75mm~
250mm, wherein it is preferred that 80mm~150mm；The diameter of the pre- ceasma is 50mm~210mm；The avalanche is crushed the diameter in hole
For 75~250mm；
When it is implemented, as shown in Fig. 2, the center that the method for arranging of blasthole is vertical shaft selected first is slotting disintegrating area,
Slotting is crushed hole and is arranged with the arrangement mode of equilateral triangle, emptying aperture is arranged in the position of form center of equilateral triangle, slotting crushes
Hole and emptying aperture cooperate, and after slotting crushes hole detonation, a circular cavity contour with vertical shaft are formed in slotting disintegrating area, to collapse
The explosion for falling broken hole provides the scope of freedom and quick-fried slag accommodation space, breaks except slotting disintegrating area to shaft excavation edge line for avalanche
Broken area, avalanche fracture area arrange that avalanche is crushed hole, and avalanche is crushed hole centered on central disintegrating area, and form circumferentially is arranged in
It the outline excavation sideline of vertical shaft and is crushed between the triangle web area that forms of hole by slotting, avalanche is crushed hole for avalanche fracture area rock
Stone carries out avalanche and is crushed, and pre- ceasma is arranged on the outline excavation sideline of vertical shaft, linear along outline excavation after pre- ceasma detonation
At precracking, excavation area rock mass in vertical shaft contour line is separated with the rock mass outside contour line, it should be noted that the cloth of blasthole
The method applicant of setting separately declares patent, does not do tired state herein；
Third step, blast hole projectile filling:
It taking the next step, as shown in Figure 3 and Figure 4, slotting crushes hole and avalanche is crushed hole and uses coupling charging or Uncoincided charge,
Pre- ceasma uses Uncoincided charge, and in the blasthole using coupling charging and decoupling charge structure, central location is uniformly distributed in hole
It sets two and sends out delay primer detonator accurate, two hair detonator standoff distances are 800~1200mm, the stemming length at blasthole both ends is 20~
The diameter of 25 times of blastholes, fills full explosive when coupling charging, in blasthole, explosive and blasthole wall are in close contact；When Uncoincided charge,
Explosive is not packed full in blasthole, in blasthole axially or radially there are gap, when blasthole connects in the axial direction not filling up radially
When continuous powder charge, referred to as radial Uncoincided charge；When blasthole radially fill up and in axial Discontinuous charge, referred to as axially
Uncoincided charge；When blasthole is not being filled up radially and in axial also Discontinuous charge, dress is not coupled radially, axially referred to as
Medicine；Slotting crushes blasthole, avalanche be crushed hole and pre- ceasma blasthole Uncoincided charge can according to the size of dose and blasthole diameter,
Using any one of above-mentioned three decoupling charge structures form；
4th step, setting blasting network and detonation:
It takes the next step, explosion, the sequence of each shot hole blasting is carried out using delays time to control blasting technique are as follows: detonation arrangement first
Pre- ceasma at vertical shaft edge, forms precracking along shaft excavation contour line, and the slotting for slotting disintegrating area of then detonating crushes
The rock of slotting disintegrating area is crushed the area Bing Gai and forms slotting chamber by hole；Finally the avalanche of detonation avalanche fracture area is crushed hole, collapses
The avalanche for falling fracture area is crushed hole according to the sequence from inner lane to outer ring, and one encloses orderly detonation or hole-by-hole initiation；It is described to prolong
When the time interval detonated be 10~20ms；The delays time to control explosion is reasonably delayed the time are as follows:
In formula:
W --- minimum burden, kg/m3；
θ --- explosive funnel cone-apex angle, radian；
Cp--- the speed of stress wave propagation, m/s in rock；
B --- minimum fracture width needed for forming the new scope of freedom, usual area 0.01m are extended as crack；
Vs--- the speed of crack extension, 1m/s or so；
The present invention can effectively control explosion earthquake wave energy using accurate delay Controlled blasting technique, substantially reduce explosion
Vibration.The seismic wave energy that instantaneous neat quick-fried blasting method generates is maximum, what the mode of millisecond accurate delay explosion by row generated
Seismic wave energy reduces suddenly, is instantaneous neat quick-fried 42%, the earthquake wave energy that the mode of millisecond accurate delay explosion one by one generates
It measures smaller, is instantaneous neat quick-fried 18%.
The present invention increases the detonation number of segment of millisecond time-delay, can effectively improve attenuation of seismic waves drop vibration probability, obtain good
Drop vibration effect.
Therefore in practical Blasting Excavation, to reduce the destruction that blasting vibration generates, extension time interval should take 10~
20ms is most appropriate, and detonation number of segment is few, takes large values, and detonation number of segment is more, gets the small value.
5th step is slagged tap and borehole wall supporting:
It taking the next step, after the completion of explosion, quick-fried slag falls automatically in well, and lower roadway construction personnel are slagged tap with dirt loader, with
The gradually whereabouts of quick-fried slag, construction personnel carry out brushing and bolt-mesh-spurting supporting to vertical shaft by the top of the slag, can both exempt taking repeatedly in this way
If removing job platform, loose swollen and collapsing excessive prevented also from Sidewall Surrounding Rock stress release, quick-fried slag shipment is finished, borehole wall brushing
And supporting is also completed immediately.
The present invention in the specific implementation, the sequence of rock blasting are as follows:
(1) it detonates first and is arranged in the presplitting blasthole at vertical shaft edge, go out a precracking along quasi- excavating sideline explosion, it should
The presence in crack can effectively cut off damage of the stress wave generated when other pack explosions to country rock.
(2) then the rock of the slotting disintegrating area in vertical shaft center carries out explosion, and forms one in slotting disintegrating area and erect
The contour cavity of well.Slotting disintegrating area is disposed with slotting and crushes hole and emptying aperture.The triangulation network slotting onepull of deep hole subregion at
In well novel construction method work progress, the explosion of slotting disintegrating area is the most key, and in the area, slotting crushing hole explosive payload is larger, emptying aperture energy
Enough compensation spaces and the explosion scope of freedom are provided, after slotting crushes hole detonation, the rock of slotting disintegrating area is crushed, and crushes rock
Slag can be under self gravity and detonation gas effect, and throwing comes out, and forms one and the contour cavity of vertical shaft, which is subsequent collapse
The explosion for falling broken hole provides the scope of freedom and catalase space；
(3) rock of last avalanche fracture area carries out explosion.Avalanche fracture area refers to that slotting disintegrating area sideline is quasi- to vertical shaft
Annular region between excavating sideline.Avalanche is disposed in avalanche fracture area and is crushed hole, and avalanche is crushed hole and surrounds slotting disintegrating area
It is arranged with ring shape, avalanche is crushed hole by the sequence from inner lane to outer ring, from coil to coil explosion, until entire vertical shaft explosion finishes, it is quick-fried
Under rock quarrel be slipped to shaft bottom.The rock of avalanche fracture area is according to the sequence from inner lane to outer ring, from coil to coil explosion, sequence are as follows:
1. → the 2nd 2. → the 3rd circle is 3., specific as shown in Figure 1 for circle for 1st circle.
Implementation through the invention, effective solution underground shaft onepull are excavated into six sides during well construction
The key technical problem in face:
1, it is studied by the theoretical, cutting method to traditional slotting, proposes deep hole and crush the thinking of slotting, and mention for the first time
The new cutting method of triangulation network burn cut is gone out, has solved underground shaft onepull and excavate into Cut Blasting in well technology
Problem.
2, by having obtained phase to C-J detonation theory, rock impact wave, stress wave propagation theory and Mises criterion research
Explosion forms the rule between continuous pulverized zone and blasthole spacing, blast hole projectile filling under the conditions of adjacent deep hole column charge, proposes nothing
The maximum blasthole spacing for forming continuous curshed zone in limit rock under the conditions of adjacent deep hole coupling charging and non-coupled column charge is public
Formula solves the key technical problem that the slotting in novel construction method shaft excavation crushes hole explosive payload and arrangement.
3, by having obtained phase to C-J detonation theory, rock impact wave, stress wave propagation theory and Mises criterion research
Explosion forms the rule between perforation fissure zone and blasthole spacing, blast hole projectile filling under the conditions of adjacent deep hole column charge, proposes nothing
The maximum blasthole distance equation for forming perforation fissure zone in rock under the conditions of the adjacent non-coupled column charge of deep hole is limited, is solved new
The key technical problem of pre- ceasma explosive payload and arrangement spacing in engineering method shaft excavation.
4, by showing that avalanche is crushed between hole explosive payload, arrangement spacing and avalanche rock mass to livingston theoretical research
Rule, propose avalanche and be crushed hole explosive payload, arrangement distance computation formula, it is broken to solve avalanche in novel construction method shaft excavation
The key technical problem of hole arrangement.
5, it is studied for secondary diagenesis formation mechenism, obtains the relationship avoided between secondary diagenesis and void content,
It is proposed avoids generating the calculating formula of secondary diagenesis compensation space, solves the critical issue of the secondary diagenesis of deep hole blasting.
6, it is studied, propose to reduce concussion of blasting and is improved quick-fried for the control explosion of deep hole column charge accurate delay
The measure of broken effect, and time selection formula of rationally delaying is provided, solve the key technology difficulty of accurate delay control explosion,
Theory support is provided to realize that deep hole column charge accurate delay necessary to shaft formatting by one blasting technology controls explosion.
The present invention has the advantage that
Deep hole subregion triangulation network slotting shaft formatting by one blasting Technology application Controlled blasting technique, need to only ignite it is primary, it is whole
A vertical shaft is according to the successively explosion of pre-designed sequence, onepull success.
Deep hole subregion triangulation network slotting shaft formatting by one blasting technology construction is simple, entire vertical shaft only need a job to follow
Ring can complete the construction of whole vertical shafts.The novel construction method uses deep hole rig, and all blastholes are once constructed in place, i.e., will
All blastholes are once drilled, and the depth of blasthole and the height of vertical shaft are equal；Quick-fried slag falls automatically in well, so as in lower tunnel
The built-in slag operation of artificial well is replaced with dirt loader；With the gradually whereabouts of quick-fried slag, personnel can carry out brushing to vertical shaft by the top of the slag
With shotcrete rock bolt wire mesh support, it can exempt set up dismounting operation post repeatedly in this way.
Deep hole subregion triangulation network slotting shaft formatting by one blasting technology is the interior extension of through hole or hole male extension to realize vertical shaft
Interior each orderly explosion of subregion rock mass, continuously or discontinuously powder charge in each blasthole, centre is separated without stemming blocking, and each blasthole is only
Two pieces of detonators are needed to be detonated, charge constitution is simple；The probability very little of induced detonation, miso-fire occurs for each hole onepull.
Deep hole subregion triangulation network slotting shaft formatting by one blasting technology avoids Sidewall Surrounding Rock by the destruction of multiple blast disturbance；It is quick-fried
After allow quick-fried slag to stay in do temporary support in well, prevent Sidewall Surrounding Rock from loosening and collapsing；Prevented also from Sidewall Surrounding Rock stress release
Excessively, pine is swollen and collapses.
In short, deep hole subregion triangulation network slotting shaft formatting by one blasting technology overcomes traditional vertical shaft Technology of Blasting not
Foot, has the advantage that, has broad application prospects.
Part not in the detailed description of the invention is the prior art.
The embodiment selected herein to disclose goal of the invention of the invention, is presently considered to be suitable, still,
It is to be understood that the present invention is intended to include all changes and improvement that all belong to the embodiment in this design and invention scope.
Claims (6)
1. a kind of method of deep hole subregion triangulation network slotting shaft formatting by one blasting, it is characterized in that: specifically comprising the following steps:
The first step digs chamber:
Chamber is excavated out in the bottom and top of quasi- excavating shaft first, when intending reaching earth's surface at the top of excavating shaft, is not necessarily to
Chamber is excavated at top；
Second step, arrangement blasthole simultaneously drill:
It takes the next step, use deep hole rig to drill along vertical shaft full section height in vertical shaft, all blastholes are once constructed in place, and vertical shaft center is drawn
Slot disintegrating area arranges that triangulation network slotting crushes hole and emptying aperture, the avalanche fracture area cloth between central slotting disintegrating area and vertical shaft edge
It sets avalanche and is crushed hole, pre- ceasma is arranged on shaft excavation edge；
Third step, blast hole projectile filling:
Take the next step, slotting crushes hole and avalanche and is crushed hole using coupling charging or Uncoincided charge, pre- ceasma is not using coupling dress
Medicine, in the blasthole using coupling charging and decoupling charge structure, central location arranges that two send out delay initiation accurate in hole
Detonator, two hair detonator standoff distances are 800~1200mm, and the stemming length at blasthole both ends is the diameter of 20~25 times of blastholes, coupling
Full explosive is filled when attaching together medicine, in blasthole, explosive and blasthole wall are in close contact；When Uncoincided charge, explosive is not loaded in blasthole
It is full, blasthole axially or radially there are gaps；
4th step, setting blasting network and detonation:
It takes the next step, explosion, the sequence of each shot hole blasting is carried out using delays time to control blasting technique are as follows: detonation is arranged in perpendicular first
The pre- ceasma at well edge, forms precracking along shaft excavation contour line, and the slotting for slotting disintegrating area of then detonating crushes hole, will
The rock of slotting disintegrating area crushes the area Bing Gai and forms slotting chamber；Finally the avalanche of detonation avalanche fracture area is crushed hole, and avalanche is broken
The avalanche in broken area is crushed hole according to the sequence from inner lane to outer ring, and one encloses orderly detonation or hole-by-hole initiation；
5th step is slagged tap and borehole wall supporting:
It takes the next step, after the completion of explosion, quick-fried slag falls automatically in well, and lower roadway construction personnel are slagged tap with dirt loader, with quick-fried slag
Gradually whereabouts, construction personnel carries out brushing and bolt-mesh-spurting supporting to vertical shaft by the top of the slag, both can exempt setting up repeatedly in this way and tear open
Except job platform, loose swollen and collapsing excessive prevented also from Sidewall Surrounding Rock stress release, quick-fried slag shipment is finished, borehole wall brushing and branch
Shield is also completed immediately.
2. the method for deep hole subregion triangulation network slotting shaft formatting by one blasting according to claim 1, it is characterized in that: blasthole
Method for arranging is that the center of vertical shaft selected first is slotting disintegrating area, and slotting crushes hole with the arrangement mode cloth of equilateral triangle
It sets, emptying aperture is set in the position of form center of equilateral triangle, slotting crushes hole and emptying aperture cooperates, and after slotting crushes hole detonation, is drawing
Slot disintegrating area forms a circular cavity contour with vertical shaft, provides the scope of freedom for the explosion that avalanche is crushed hole and quick-fried slag accommodates
Space to shaft excavation edge line is avalanche fracture area except slotting disintegrating area, and avalanche fracture area arranges that avalanche is crushed hole, avalanche
Centered on central disintegrating area, the outline excavation sideline that form circumferentially is arranged in vertical shaft crushes hole group with by slotting in broken hole
At triangle web area between, avalanche be crushed hole by avalanche fracture area rock progress avalanche be crushed, pre- ceasma is arranged in vertical shaft
On outline excavation sideline, after pre- ceasma detonation, precracking is formed along excavation contour line, by excavation area rock mass in vertical shaft contour line
It is separated with the rock mass outside contour line.
3. the method for deep hole subregion triangulation network slotting shaft formatting by one blasting according to claim 1, it is characterized in that: described draw
The diameter that slot crushes hole is 75mm~250mm, wherein it is preferred that 80mm~150mm.
4. the method for deep hole subregion triangulation network slotting shaft formatting by one blasting according to claim 1, it is characterized in that: described pre-
The diameter of ceasma is 50mm~210mm.
5. the method for deep hole subregion triangulation network slotting shaft formatting by one blasting according to claim 1, it is characterized in that: described collapse
The diameter for falling broken hole is 75~250mm.
6. the method for deep hole subregion triangulation network slotting shaft formatting by one blasting according to claim 1, it is characterized in that: described prolong
When the time interval detonated be 10~20ms.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156019A (en) * | 2019-12-26 | 2020-05-15 | 临沂会宝岭铁矿有限公司 | One-step forming and sectional blasting method for inclined drop shaft |
| CN111521082A (en) * | 2020-04-08 | 2020-08-11 | 西部矿业股份有限公司 | One-time well completion method by matching high-pass shaft and medium-length hole sectional blasting in raise-boring construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902422A (en) * | 1973-07-26 | 1975-09-02 | Du Pont | Explosive fracturing of deep rock |
| CN102735122A (en) * | 2012-07-09 | 2012-10-17 | 薛世忠 | Strip mine drilling blasting method |
| CN104594903A (en) * | 2014-11-19 | 2015-05-06 | 攀钢集团工程技术有限公司 | Ore breaking method for whole-section high combination rock drilling blasting |
| CN107131806A (en) * | 2017-05-09 | 2017-09-05 | 深圳市中金岭南有色金属股份有限公司 | Service shaft is disposable into well blasting method |
| CN108374661A (en) * | 2018-02-06 | 2018-08-07 | 浙江省隧道工程公司 | A kind of middle pilot shaft shaft formatting by one blasting method |
-
2019
- 2019-04-17 CN CN201910306775.4A patent/CN110030889B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902422A (en) * | 1973-07-26 | 1975-09-02 | Du Pont | Explosive fracturing of deep rock |
| CN102735122A (en) * | 2012-07-09 | 2012-10-17 | 薛世忠 | Strip mine drilling blasting method |
| CN104594903A (en) * | 2014-11-19 | 2015-05-06 | 攀钢集团工程技术有限公司 | Ore breaking method for whole-section high combination rock drilling blasting |
| CN107131806A (en) * | 2017-05-09 | 2017-09-05 | 深圳市中金岭南有色金属股份有限公司 | Service shaft is disposable into well blasting method |
| CN108374661A (en) * | 2018-02-06 | 2018-08-07 | 浙江省隧道工程公司 | A kind of middle pilot shaft shaft formatting by one blasting method |
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| CN111156019A (en) * | 2019-12-26 | 2020-05-15 | 临沂会宝岭铁矿有限公司 | One-step forming and sectional blasting method for inclined drop shaft |
| CN111156019B (en) * | 2019-12-26 | 2021-07-27 | 临沂会宝岭铁矿有限公司 | Drilling device for blasting and inclined drop shaft one-step forming segmented blasting method |
| CN111521082A (en) * | 2020-04-08 | 2020-08-11 | 西部矿业股份有限公司 | One-time well completion method by matching high-pass shaft and medium-length hole sectional blasting in raise-boring construction |
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