CN108931166A - A kind of S-shaped segment algorithm and its production method - Google Patents
A kind of S-shaped segment algorithm and its production method Download PDFInfo
- Publication number
- CN108931166A CN108931166A CN201810818152.0A CN201810818152A CN108931166A CN 108931166 A CN108931166 A CN 108931166A CN 201810818152 A CN201810818152 A CN 201810818152A CN 108931166 A CN108931166 A CN 108931166A
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- China
- Prior art keywords
- joint
- cutting
- shaped
- blasthole
- cutting pipe
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Classifications
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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
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of S-shaped segment algorithms, the joint-cutting pipe including blasthole and in blasthole, and explosive is filled in the joint-cutting pipe；The tube wall of the joint-cutting pipe is equipped with several equidistant S-shaped joint-cuttings, and the S-shaped joint-cutting is located at the side of joint-cutting pipe.S-shaped segment algorithm of the present invention generates high-pressure gas jet in explosion moment first, then passes through the cumulative of S-shaped joint-cutting, forms S-shaped water jet, and then impact blasthole wall, achievees the purpose that specific directional fracture of rocks.From the point of view of cumulative, S-shaped segment algorithm can form the effect of S-shaped cumulative, and S-shaped water jet makes explosion rock mass carry out comminuted explosion destruction, reduces the lumpiness rate of rock, improve mechanical loading/unloading rate, rather than joint-cutting direction carries out protection country rock.
Description
Technical field
The present invention relates to CUMULATIVE BLASTING field more particularly to a kind of S-shaped segment algorithm and its production methods.
Background technique
Since phase early 1950s, Sweden use photoface exploision since, it is many country also in succession to photoface exploision into
A large number of experiments research is gone.Currently, China is in excavation construction, photoface exploision is also popularized in an all-round way, and becomes a kind of standard
Construction method.
Recent decades, China carry out the quick-fried mechanism of light, the quick-fried charge constitution of light, detonating delay time, guide effect, sun-exposed skin etc.
Numerous studies, have developed low-density, low blasting speed, low power, the Special explosive for smooth blasting of low-density, AN-TNT containing explosive minor diameter medicine
Volume, aqueous gels small diameter medicine roll, have carried out field experiment.But smooth demolition effect is really achieved in the current well lane engineering in China
And it is few, in addition to the reason of the management aspect other than, main cause also: (1) the quick-fried blasthole spacing of light is smaller, boring work amount compared with
Greatly；(2) normal light is quick-fried can not form hydraulically smooth surface in joints development rock mass completely；(3) normal light it is quick-fried in single blasthole it is quick-fried
The broken no directionality of effect.
In order to fundamentally improve smooth- blast parameeter, forefathers are from joint-cutting directional blasting method, cumulative directional fracture blasting, joint-cutting medicine
Packet directional fracture blasting three kinds of approach improve bursting quality.Wherein segment algorithm is of less demanding to hole, pack make well and
It is widely used.After segment algorithm explosion, due to being limited by unilateral double-pipe, explosion energy preferentially discharges from joint-cutting, preferentially
Crack is generated to the rock medium effect at joint-cutting, to reach control rock mass cracking direction, reduces the damage that need to retain rock mass.
But the application of segment algorithm is built upon greatly the joint-cutting to pack, and the effect of cumulative is limited, and explosive energy does not make full use of.
In currently available technology, mostly also there is different understanding to the research of segment algorithm.Such as Publication No.
The segment algorithm of CN107367207A does not couple joint powder charge step Deep-hole Smooth Blasting device, including multiple powder charge pipes with axial
Standard knot is linked in sequence between the nozzle of powder charge pipe standards section and constitutes blasting cartridge, the junction setting of adjacent powder charge pipe standards section
There is a pallet of bracketing explosive, one end of blasting cartridge is provided with pedestal, and the other end of blasting cartridge is provided with top cover, in the disk of pallet
It is provided with the through-hole that primacord passes through, the primacord is sequentially passed through the through-hole on pallet by pedestal and upwards by blasting cartridge
The through-hole that top cover opens up is drawn, and is additionally provided with crack on pallet, which can be improved the effective rate of utilization of explosive, weakens rock mass
Influence of the complicated geological environment to powder charge, prevents blasting fume from overflowing too early, improve the blasting fume broken rock time, improve safety and
Crushing effect, while controlling blasting vibration harm, reduce construction and excavating cost.Crushing effect of the program to control rock mass
Or it can not accomplish Optimal Control.
A kind of compound energy-concentrating explosion pack and its production method of Publication No. CN101709933A for another example, pass through by
Explosive is placed in bimetallic tube, and the bimetallic tube relatively opens up inner tube joint-cutting and outer tube joint-cutting respectively, and in two-tube gap
Add couplant water, it is hereby understood that the present invention generates high-pressure gas jet in explosion moment first, then passes through inner tube joint-cutting
Cumulative forms water jet, and water jet passes through the cumulative of outer tube joint-cutting again, further strengthens energy, forms high-pressure water jet, into
And blasthole wall is impacted, achieve the purpose that directional fracture.It follows that from the point of view of cumulative, this compound energy-concentrating explosion medicine
Packet can form the effect of cumulative twice, be twice of conventional segment algorithm cumulative；It is this compound poly- from the point of view of protection country rock
Energy type explosion pack uses bimetallic tube, is twice of conventional segment algorithm, and the effect of protection country rock is better than conventional segment algorithm,
And then reduce support cost.The program equally can not accomplish Optimal Control to the crushing effect of rock mass.
Summary of the invention
Present invention aims to solve the deficiencies of the prior art, and provides a kind of one kind effectively to carry out comminuted explosion to rock mass
S-shaped segment algorithm improve mechanical loading/unloading rate, while carrying out to non-joint-cutting direction so that the lumpiness rate of rock be effectively reduced
Protect country rock.
The technical solution adopted by the present invention is that: a kind of S-shaped segment algorithm, the joint-cutting pipe including blasthole and in blasthole,
Explosive is filled in the joint-cutting pipe；The tube wall of the joint-cutting pipe is equipped with several equidistant S-shaped joint-cuttings, the S-shaped joint-cutting
Positioned at the side of joint-cutting pipe.
A kind of production method of S-shaped segment algorithm, it is characterized in that including the following steps:
1) several S-shaped joint-cuttings are opened up on joint-cutting pipe, the tangent line of S-shaped joint-cutting and the angle of horizontal plane are 30 °~50 °, and slit width is
3.0~5.0mm, the longitudinal pitch between joint-cutting are 100.0~150.0mm；
2) in explosive bottom end, setting is rebasing, which is wound；
3) explosive made in step 2 is put into joint-cutting pipe；
4) segment algorithm that step 3) obtains is fitted into the blasthole of diameter 1.8~2.5mm bigger than joint-cutting pipe diameter；
5) couplant water is added in blasthole to specified altitude assignment
As a further improvement of the present invention, the longitudinal pitch of S-shaped joint-cutting is 100.0~150.0mm on the joint-cutting pipe.
As a further improvement of the present invention, the angle of the tangent line of the S-shaped joint-cutting and horizontal plane is 30 °~50 °, is cut
Slit width degree is 3.0~5.0mm.
As a further improvement of the present invention, the gap between the joint-cutting pipe and blasthole is equipped with filled layer.
As a further improvement of the present invention, the blasthole diameter is 1.8~2.5 times of joint-cutting pipe diameter.
As a further improvement of the present invention, explosive bottom end is provided with rebasing, described rebasing to be entwined by insulating tape.
As a further improvement of the present invention, couplant water is filled in the blasthole.
As a further improvement of the present invention, water proof bag is cased on the outside of the explosive.
As a further improvement of the present invention, it after explosive is packed into water proof bag in the step 3), places into joint-cutting pipe.
The beneficial effect that the present invention uses is: S-shaped segment algorithm of the present invention generates high pressure in explosion moment first
Then gas jet passes through the cumulative of S-shaped joint-cutting, form S-shaped water jet, and then impact blasthole wall, reaches specific rock orientation
The purpose of fracture.From the point of view of cumulative, S-shaped segment algorithm can form the effect of S-shaped cumulative, and S-shaped water jet makes explosion rock
Body carries out comminuted explosion destruction, reduces the lumpiness rate of rock, improves mechanical loading/unloading rate, rather than joint-cutting direction carries out protection and encloses
Rock.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is usage state diagram of the invention.
It is as shown in the figure: 1 joint-cutting pipe, 2 explosives, 3 explosives, 4 insulating tapes, 5 rocks, 6 blastholes.
Specific embodiment
Below with reference to Fig. 1 and Fig. 2, the present invention is described further.
As shown, a kind of S-shaped segment algorithm, being includes blasthole and the joint-cutting pipe 1 in blasthole, the joint-cutting pipe 1
It is interior to be filled with explosive 2；The tube wall of the joint-cutting pipe 1 is equipped with several equidistant S-shaped joint-cuttings 3, and the S-shaped joint-cutting 3, which is located at, to be cut
The side of slit-tube.Joint-cutting pipe 1 is equipped with S-shaped joint-cutting 3, and explosive blasting moment generates high-pressure gas jet first, then passes through S-shaped
The cumulative of joint-cutting forms S-shaped water jet, and then impacts blasthole wall, achievees the purpose that specific directional fracture of rocks.S-shaped joint-cutting position
In the side of joint-cutting pipe, it can be ensured that the jet stream formed after cumulative goes out according to predetermined scheme lasing.
To guarantee that segment algorithm of the invention can be realized several S-shaped jet streams, it is preferable that the present embodiment, S on joint-cutting pipe 1
The longitudinal pitch of shape joint-cutting 3 is 100.0~150.0mm.
To guarantee that the jet stream of segment algorithm of the invention can effectively work, that is, guarantee the crushing effect to rock, simultaneously
Non- joint-cutting rock is not influenced, it is preferred that the present embodiment, the tangent line of S-shaped joint-cutting 3 and the angle of horizontal plane are 30 °~50 °, joint-cutting
Width is 3.0~5.0mm.
To guarantee that joint-cutting pipe is centrally located in blasthole, it is preferable that the present embodiment, the gap between joint-cutting pipe and blasthole are set
There is filled layer.
To guarantee that explosive in joint-cutting tube hub, is further ensured that cumulative action of the invention, it is preferable that the present embodiment is fried
Medicine bottom end be provided with it is rebasing, it is described rebasing to be entwined by insulating tape 4.
For the working effect for guaranteeing segment algorithm of the invention, it is preferable that the present embodiment, blasthole diameter are joint-cutting pipe diameters
1.8~2.5 times.
For the working effect for guaranteeing segment algorithm of the invention, it is preferable that the present embodiment, blasthole is interior to be filled with couplant
Water.
The form that conventional rock explosion destroys is based on tension failure mode, and the internal friction angle of rock mostly exists
Between 30 °~50 °, under the effect of S-shaped Cutting Seam Cartridge Blasting, explosion water jet is just acted on against the failure mechanics of rock,
Effectively improve the extent of the destruction of rock；From the angle of the conservation of energy it can also be seen that rock consumes greatly in joint-cutting direction
The damage of the explosion energy of amount, country rock is just protected, so that the protection to country rock plays a positive role, and then reduces the later period
Supporting expense；And no S-shaped Cutting Seam Cartridge Blasting effect under, the destruction of rock be it is random, this for country rock protection and
The destruction of rock brings very big negative effect, and then increases the supporting expense of country rock, reduces mechanical handling rate.S of the invention
Shape segment algorithm is more preferable to the crushing effect of target rock, effectively improves mechanical loading/unloading rate, rather than the rock in joint-cutting direction is same
Sample is effectively protected.
S-shaped segment algorithm of the present invention is through the following steps that be made: 1) opening up on joint-cutting pipe respectively
For slit width in the S-shaped joint-cutting of 3.0~5.0mm, the tangent line of S-shaped joint-cutting and the angle of horizontal plane are between 30 ° ~ 50 °；(2) in joint-cutting
Filled layer is set on the joint-cutting pipe outer wall face of pipe two sides, the filled layer by the outside wall surface of joint-cutting pipe two sides respectively correspondingly
Insulating tape and formed；(3) in explosive bottom end, setting is rebasing, so that explosive is placed in the center of joint-cutting pipe, and it is to pass through that this is rebasing
In explosive bottom, winding insulating cement, which is brought, to form；(4) explosive is placed in joint-cutting pipe, and makes explosive in joint-cutting pipe
The heart；(5) pack for obtaining step (4) is packed into the blasthole of diameter 1.5~2.5mm bigger than joint-cutting pipe diameter, while in blasthole
Couplant water is added to specified altitude assignment, the present invention will fill couplant water in blasthole.
In addition, being damaged to avoid explosive from soaking, then after explosive being packed into water proof bag, place into joint-cutting pipe.
S-shaped segment algorithm of the present invention generates high-pressure gas jet in explosion moment first, then passes through S-shaped joint-cutting
Cumulative, formed S-shaped water jet, and then impact blasthole wall, achieve the purpose that specific directional fracture of rocks.From the angle of cumulative
It sees, S-shaped segment algorithm can form the effect of S-shaped cumulative, and S-shaped water jet makes explosion rock mass carry out comminuted explosion destruction, drop
The lumpiness rate of low rock improves mechanical loading/unloading rate, rather than joint-cutting direction carries out protection country rock.
Those skilled in the art should know the protection scheme of the present invention is not limited only to the above embodiments, can also be
Various permutation and combination and transformation are carried out on the basis of above-described embodiment, on the premise of without prejudice to spirit of the invention, to the present invention
The various transformation carried out are fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of S-shaped segment algorithm, it is characterized in that including blasthole and the joint-cutting pipe (1) in blasthole, the joint-cutting pipe (1) is interior
Filled with explosive (2)；The tube wall of the joint-cutting pipe (1) is equipped with several equidistant S-shaped joint-cuttings (3), the S-shaped joint-cutting (3)
Positioned at the side of joint-cutting pipe.
2. a kind of S-shaped segment algorithm according to claim 1, it is characterized in that S-shaped joint-cutting (3) on the joint-cutting pipe (1)
Longitudinal pitch is 100.0~150.0mm.
3. a kind of S-shaped segment algorithm according to claim 1 or 2, it is characterized in that the tangent line and water of the S-shaped joint-cutting (3)
The angle of plane is 30 °~50 °, and width of slit is 3.0~5.0mm.
4. a kind of S-shaped segment algorithm according to claim 3, it is characterized in that the gap between the joint-cutting pipe and blasthole is set
There is filled layer.
5. a kind of S-shaped segment algorithm according to claim 1 or 2, it is characterized in that the blasthole diameter is joint-cutting pipe diameter
1.8~2.5 times.
6. a kind of S-shaped segment algorithm according to claim 5, it is characterized in that explosive bottom end be provided with it is rebasing, it is described rebasing
It is entwined by insulating tape (4).
7. a kind of S-shaped segment algorithm according to claim 6, it is characterized in that being filled with couplant water in the blasthole.
8. according to claim 1, a kind of S-shaped segment algorithm described in any one of 2,4,6 or 7, it is characterized in that the explosive
Outside is cased with water proof bag.
9. a kind of production method of S-shaped segment algorithm, it is characterized in that including the following steps:
1) several S-shaped joint-cuttings are opened up on joint-cutting pipe, the tangent line of S-shaped joint-cutting and the angle of horizontal plane are 30 °~50 °, and slit width is
3.0~5.0mm, the longitudinal pitch between joint-cutting are 100.0~150.0mm；
2) in explosive bottom end, setting is rebasing, which is wound；
3) explosive made in step 2 is put into joint-cutting pipe；
4) segment algorithm that step 3) obtains is fitted into the blasthole of diameter 1.8~2.5mm bigger than joint-cutting pipe diameter；
5) couplant water is added in blasthole to specified altitude assignment.
10. the production method of a kind of S-shaped segment algorithm according to claim 9, it is characterized in that explosive in the step 3)
After being packed into water proof bag, place into joint-cutting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818152.0A CN108931166A (en) | 2018-07-24 | 2018-07-24 | A kind of S-shaped segment algorithm and its production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810818152.0A CN108931166A (en) | 2018-07-24 | 2018-07-24 | A kind of S-shaped segment algorithm and its production method |
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| CN108931166A true CN108931166A (en) | 2018-12-04 |
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| CN201810818152.0A Pending CN108931166A (en) | 2018-07-24 | 2018-07-24 | A kind of S-shaped segment algorithm and its production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243244A (en) * | 2019-07-18 | 2019-09-17 | 中铁十八局集团有限公司 | It is a kind of based on Detonation waveform modulation circumferential slit without cavity liner air gap CUMULATIVE BLASTING loading method |
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| CN207407751U (en) * | 2017-10-24 | 2018-05-25 | 中交一公局厦门工程有限公司 | A kind of novel axial does not couple joint-cutting cumulative hydraulic pressure presplit blasting device |
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|---|---|---|---|---|
| US20060070739A1 (en) * | 2004-10-05 | 2006-04-06 | Schlumberger Technology Corporation | Propellant Fracturing of Wells |
| CN101709933A (en) * | 2009-12-07 | 2010-05-19 | 河海大学 | Compound energy-concentrating blasting cartridge and production method thereof |
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| CN110243244A (en) * | 2019-07-18 | 2019-09-17 | 中铁十八局集团有限公司 | It is a kind of based on Detonation waveform modulation circumferential slit without cavity liner air gap CUMULATIVE BLASTING loading method |
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