CN107131806B - Service shaft is disposably at well blasting method - Google Patents
Service shaft is disposably at well blasting method Download PDFInfo
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- CN107131806B CN107131806B CN201710320793.9A CN201710320793A CN107131806B CN 107131806 B CN107131806 B CN 107131806B CN 201710320793 A CN201710320793 A CN 201710320793A CN 107131806 B CN107131806 B CN 107131806B
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- Prior art keywords
- hole
- circle
- centre bore
- charging
- charging hole
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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
Abstract
The invention discloses a kind of service shafts disposably at well blasting method: the following steps are included: 1) trolley punches: making a call to 1 centre bore, 4 emptying apertures in chamber upwards in turn under service shaft and totally 4 enclose charging hole from inside to outside；The centre bore is located at service shaft center position, and the emptying aperture is located at centre bore periphery and square arrangement, and 4 emptying apertures are located at square four apexes；4 circle charging holes are successively arranged 4,8,9,14 charging holes from inside to outside；Every circle charging hole is equidistantly arranged on the circumference using centre bore as the center of circle；2) powder charge: being packed into emulsion and detonator in centre bore and all charging holes, blocks aperture with stemming after powder charge；3) explosion: detonating using outside electric detonator hole, blasthole short-delay blasting.The service shaft disposably effectively improves measure into construction efficiency, the demolition effect and wall surface smoothness of the disposable Cheng Jing of Improving Measurements well at well blasting method.
Description
Technical field
The invention belongs to mining technical fields, and in particular to a kind of service shaft is disposably at well blasting method.
Background technique
In metal mine upraise technical aspect, the method for uplink sectional blasting method driving is continued to use all the time, by
In the safety of the complexity of explosion program, related personnel and equipment and the restriction of rock drilling machinery equipment, all the time by
The highest attention and exploration of people.
In recent years, it in look forward to universal of mine and is used and explosion simultaneous shaft sin king due to efficient drill jumbo mechanical equipment
The advantages that safety is good, effect is high, and can Improving Measurements well driving when related personnel working environment and equipment safety；Cause
This, more and more research institutions and enterprise put into a large amount of fund, technology and personnel and try explosion simultaneous shaft sin king technology
It tests and optimizes.But due to the irrationality at well explosion design parameter, along with the shadow of the factors such as construction level, drilling instrument
It rings, causes service shaft simultaneous shaft sin king explosion easily to go out " asphyxia by external pressure on the chest and abdomen " phenomenon and the inadequate or coarse problem of wall surface smoothness, thus can not
Reach demolition effect expected from service shaft.
Summary of the invention
The present invention overcomes the disadvantages of the prior art, provides a kind of service shaft disposably into well blasting method, improves
Measure is into construction efficiency, the demolition effect and wall surface smoothness of the disposable Cheng Jing of Improving Measurements well.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of service shaft is disposably at well blasting method, comprising the following steps:
1) trolley punches: making a call to 1 centre bore, 4 emptying apertures and from inside to outside totally 4 upwards in turn in the chamber of service shaft lower part
Enclose charging hole；The centre bore is located at service shaft center position, and the emptying aperture is located at centre bore periphery and square arrangement,
4 emptying apertures are located at square four apexes；4 circle charging holes are successively arranged 4,8,9,14 charging holes from inside to outside；Often
Circle charging hole is equidistantly arranged on the circumference using centre bore as the center of circle；
2) emulsion and detonator, each built-in two hairs thunder of charging hole powder charge: are packed into centre bore and all charging holes
Pipe, and detonator is sent out into primacord doubling connection two；Aperture is blocked with stemming after powder charge；Detonator section in 4 circle charging holes is by interior
It is followed successively by 1 section, 10 sections, 15 sections and 20 sections (the high detonator delay time of section is long) outward；
3) explosion: detonating using outside electric detonator hole, blasthole short-delay blasting from inside to outside.
Compared with the prior art, service shaft of the present invention arranges medium-length hole length disposably at well blasting method
Shi Jing (within 6 meters of measure well depth) punches simultaneous shaft sin king blasting technique using trolley, is arranged by reasonable blasthole and parameter
Design, and the construction method of optimization, it is ensured that service shaft simultaneous shaft sin king demolition effect has reached the smooth expection mesh of the borehole wall
Other simultaneous shaft sin king explosions are played guidance and reference function by mark.
Further, 4 emptying aperture equidistant arrangements described in step 1) and away from service shaft central point 0.2m, 4 circle charging holes are by interior
Outward respectively away from service shaft central point 0.3m, 0.5m, 0.8m, 1.2m, every circle charging hole is circumferentially equidistantly arranged, and adjacent two
The charging hole of powder charge circle mutually staggers.Pass through the rational design to steel for shot mode, it can be ensured that good demolition effect.
Further, the aperture of centre bore described in step 1) and emptying aperture is 89mm, centre bore bottom hole and top chamber bottom plate
Distance be 0.5m, emptying aperture run through top chamber bottom plate.The aperture of centre bore and emptying aperture is larger to facilitate slotting formation explosion certainly
By face；Centre bore bottom hole stays 0.5 meter not punch punching when can prevent explosion, and facilitates powder charge.
Further, the 64mm of charging hole aperture described in step 1), bottom hole are 0.5m at a distance from the chamber bottom plate of top.Aperture
It is larger to form the explosion scope of freedom convenient for slotting；Bottom hole stays 0.5 meter not punch punching when can prevent explosion, and facilitates powder charge.
Further, in step 2), the 1st circle charging hole aperture stemming length is 20cm, remaining charging hole aperture stemming length
For 1.1m.1st circle stemming length shortens to 20cm convenient for forming the scope of freedom, remaining charging hole aperture stemming length is that 1.1m can be with
It reduces explosive specific charge and forms photoface exploision.
Further, primacord length described in step 2) is identical as hole depth, and exposed hole is not outer to prevent by phase for primacord
It is ignited when adjacent difference section explosion, part caused by explosive is discontinuous in the hole that the built-in primacord of blasthole is likely to occur in order to prevent
It miss-fires.
Further, using 2 hair electronic detonator initiatings when step 3) explosion, electric detonator ignites 2 groups of on line detonators, and every group is adopted
With 2 hair detonator on lines.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and is used to explain the present invention together with embodiments of the present invention,
It is not construed as limiting the invention, in the accompanying drawings:
Fig. 1 is the blast-hole design figure of blasting method of the present invention；
Fig. 2 is the blast hole loading structure schematic diagram of blasting method of the present invention.
Wherein, K1 is center hole, and K2~K5 is emptying aperture, and 1~4 is first lap charging hole, and 5~12 be the second circle charging hole,
13~21 be third circle charging hole, and 22~35 be the 4th circle charging hole, and 1#, 10#, 15# and 20# indicate detonator section；
110 be Nonel detonator, and 210 be detonator, and 310 be primacord, and 410 be emulsion, and 510 be stemming.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the blast-hole design figure of blasting method of the present invention；Fig. 2 is this
The blast hole loading structure schematic diagram of the invention blasting method.A kind of service shaft provided by the invention is disposably at well explosion side
Method, comprising the following steps:
1) trolley punches: successively stamping 1 centre bore K1,4 emptying aperture K2~K5 in chamber, and totally 4 encloses from inside to outside
Charging hole 1~35；The centre bore K1 is located at service shaft center position, and the emptying aperture K2~K5 is located at the periphery centre bore K1 simultaneously
Square arrangement, 4 emptying aperture K2~K5 are located at square four apexes；4 circle charging holes are successively arranged from inside to outside
4,8,9,14 charging holes, i.e. 1~4 is first lap charging hole in Fig. 1, and 5~12 for the second circle charging hole, 13~21 be third circle
Charging hole, 22~35 be the 4th circle charging hole；Every circle charging hole is equidistantly arranged on the circumference using centre bore K1 as the center of circle；This reality
It applies in example, the aperture of centre bore K1 and emptying aperture K2~K5 are 89mm, and centre bore K1 bottom hole is with top chamber bottom plate distance h1
0.5m, emptying aperture K2~K5 run through top chamber bottom plate.The aperture 64mm of the charging hole 1~35, bottom hole and top chamber bottom plate
Distance h1 be 0.5m.In the present embodiment, 4 emptying aperture K2~K5 equidistant arrangements and away from service shaft central point 0.2m, 4 circle dresses
Medicine hole is from inside to outside respectively away from service shaft central point 0.3m, 0.5m, 0.8m, 1.2m (radius of circumference where i.e. 4 circle charging holes)；
The distance of adjacent two charging hole of 1st circle charging hole is 0.4m, and the distance of adjacent two charging hole of the 2nd circle charging hole is 0.4m, the 3rd circle
The distance of adjacent two charging hole of charging hole is 0.55m, and the distance of adjacent two charging hole of the 4th circle charging hole is 0.6m.Every circle powder charge
Hole is circumferentially equidistantly arranged, and the charging hole of adjacent two powder charges circle mutually staggers.
2) powder charge: being packed into emulsion and detonator in centre bore and all charging holes, and each built-in two hair of charging hole is led
Booster detonator, and detonator is sent out into primacord doubling connection two；Aperture is blocked with stemming after powder charge；Detonator section in 4 circle charging holes
Position is followed successively by 1 section, 10 sections, 15 sections and 20 sections (the high detonator delay time of section is long) from inside to outside；In the present embodiment, the 1st circle
The aperture stemming length h2 of charging hole 1~4 is 20cm, remaining charging hole aperture stemming length is 1.1m；The primacord 310
Totally 36, the length of every primacord is blast hole depth, and primacord is not outside exposed hole.
3) explosion: detonating using outside electric detonator hole, blasthole short-delay blasting from inside to outside.Using the 2 sub- thunders of power generation when explosion
Pipe detonation, electric detonator ignite 2 groups of on line detonators, and every group using 2 hair detonator on lines.
Following safety measure should be taken when bursting work: bursting work is on duty should to hang warning sign in explosion influence area；
It needs to ensure good ventilation in powder charge process；Before charge operation, the float stone of top chamber top plate need to be handled, when operating personnel wants
Work clothes need to be put on by carving the vigilant float stone fallen and mechanical damage, operating personnel, with appliances for labor protection such as good mask, safety caps；
Top chamber mouth need to block warning tape when the heading charge operation of lower part, and personnel must not enter top chamber.If having to enter into, need to assist
Mix up the disengaging time of operating personnel；Powder height and blocking are highly in strict accordance with the height of design requirement when powder charge；It blows out
When should withdraw setting in advance；Qing Ganggong is carried out before detonation, the personnel in explosion influence area must withdraw setting in advance.
Compared with the prior art, service shaft of the present invention arranges medium-length hole length disposably at well blasting method
Shi Jing punches simultaneous shaft sin king blasting technique using trolley, is arranged by reasonable blasthole and parameter designing, and the construction of optimization
Method, it is ensured that service shaft simultaneous shaft sin king demolition effect has reached the smooth target of the borehole wall, to other simultaneous shaft sin king explosions
Play guidance and reference function.
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Referring to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned
Technical solution documented by each embodiment is modified or equivalent replacement of some of the technical features, but it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (2)
1. a kind of service shaft is disposably at well blasting method, it is characterised in that: the following steps are included:
1) trolley punches: making a call to 1 centre bore, 4 emptying apertures upwards in turn in the chamber of service shaft lower part and totally 4 circles fill from inside to outside
Medicine hole；The centre bore is located at service shaft center position, and the emptying aperture is located at centre bore periphery and square arrangement, and 4
Emptying aperture is located at square four apexes, 4 emptying aperture equidistant arrangements and away from service shaft central point 0.2m, and emptying aperture runs through
The aperture of top chamber bottom plate, the centre bore and emptying aperture is 89mm, and centre bore bottom hole is at a distance from the chamber bottom plate of top
0.5m；4 circle charging holes are from inside to outside respectively away from service shaft central point 0.3m, 0.5m, 0.8m, 1.2m, and 4 circle charging holes are from inside to outside
It is successively arranged 4,8,9,14 charging holes；Every circle charging hole is equidistantly arranged on the circumference using centre bore as the center of circle, and adjacent two
The charging hole of powder charge circle mutually staggers；The charging hole aperture is 64mm, and bottom hole is 0.5m at a distance from the chamber bottom plate of top；The
The distance of adjacent two charging hole of 1 circle charging hole is 0.4m, and the distance of adjacent two charging hole of the 2nd circle charging hole is 0.4m, the 3rd circle dress
The distance of adjacent two charging hole in medicine hole is 0.55m, and the distance of adjacent two charging hole of the 4th circle charging hole is 0.6m；
2) powder charge: being packed into emulsion and detonator in centre bore and all charging holes, and each charging hole built-in two sends out detonator, and
By two hair detonator of primacord doubling connection；Aperture is blocked with stemming after powder charge；4 circle charging holes in detonator section from inside to outside according to
Secondary is 1 section, 10 sections, 15 sections and 20 sections；1st circle charging hole aperture stemming length is 20cm, remaining charging hole aperture stemming length
For 1.1m；The primacord length is identical as hole depth, and primacord is not outside exposed hole；
3) explosion: detonating using outside electric detonator hole, blasthole short-delay blasting from inside to outside.
2. service shaft according to claim 1 is disposably at well blasting method, it is characterised in that: when step 3) explosion, adopt
With 2 hair electronic detonator initiatings, electric detonator ignites 2 groups of on line detonators, and every group using 2 hair detonator on lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320793.9A CN107131806B (en) | 2017-05-09 | 2017-05-09 | Service shaft is disposably at well blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320793.9A CN107131806B (en) | 2017-05-09 | 2017-05-09 | Service shaft is disposably at well blasting method |
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| Publication Number | Publication Date |
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| CN107131806A CN107131806A (en) | 2017-09-05 |
| CN107131806B true CN107131806B (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710320793.9A Active CN107131806B (en) | 2017-05-09 | 2017-05-09 | Service shaft is disposably at well blasting method |
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| CN108005653A (en) * | 2017-10-24 | 2018-05-08 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | A kind of high stratification mechanization raise mining method |
| CN108008349B (en) * | 2017-12-07 | 2019-12-06 | 西安近代化学研究所 | Method for positioning explosive core |
| CN108708721B (en) * | 2018-04-04 | 2020-07-24 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Mechanized upward segmented stoping method |
| CN109506529B (en) * | 2018-12-18 | 2021-06-08 | 福建海峡科化富兴建设工程有限公司 | Composite cut blasting method |
| CN109813189B (en) * | 2019-03-01 | 2021-03-30 | 中铁十八局集团有限公司 | Hard rock tunnel blasting excavation method |
| CN110030889B (en) * | 2019-04-17 | 2021-04-02 | 中国人民解放军军事科学院国防工程研究院 | Method for forming well by deep hole partition triangular net cut through one-time blasting |
| CN110671981B (en) * | 2019-10-10 | 2021-09-21 | 昆明理工大学 | Smooth blasting method for vertical shaft tunneling in high stress environment |
| CN112325719B (en) * | 2020-10-23 | 2022-12-27 | 中国水利水电第六工程局有限公司 | Full-row-hole underwater rock plug blasting method based on center hole charging |
| CN112254596A (en) * | 2020-10-23 | 2021-01-22 | 中国水利水电第六工程局有限公司 | Underwater rock plug blasting method with pilot tunnel |
| CN112880503A (en) * | 2021-03-29 | 2021-06-01 | 云南迪庆有色金属有限责任公司 | Blind raise hole-by-hole micro-differential blasting one-time well-forming blast hole arrangement structure and method |
| CN113944465B (en) * | 2021-09-13 | 2024-02-23 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Two-time slot pulling high-layering stoping mining method |
| CN114199090A (en) * | 2021-12-09 | 2022-03-18 | 安徽铜冠（庐江）矿业有限公司 | Deep hole groove-drawing top-breaking gangue return-free charging structure and operation method thereof |
| CN115355785B (en) * | 2022-09-15 | 2024-04-19 | 中南大学 | Sectional blasting well forming method considering blast hole deflection |
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| CN102494572A (en) * | 2011-12-21 | 2012-06-13 | 鞍钢集团矿业公司 | Blasting method for undermining and tunnelling in mode of distributing hollow holes at periphery and solid hole in center |
| CN103940309A (en) * | 2014-03-26 | 2014-07-23 | 南京梅山冶金发展有限公司 | Underground-blasting shaft forming method |
| CN105674816A (en) * | 2016-01-22 | 2016-06-15 | 河北钢铁集团矿业有限公司 | Medium-length hole blasting one-time shaft-forming method used for non-coal mine mountain |
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| CN107131806A (en) | 2017-09-05 |
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Address after: Room 303C, tower 2, Shenye Jinyuan Building, No. 112, Qingshuihe 1st Road, Qingshuihe community, Luohu District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN ZHONGJIN LINGNAN NONFEMET Co.,Ltd. Patentee after: FANKOU LEAD-ZINC MINE, SHENZHEN ZHONGJIN LINGNAN NONFEMET Co.,Ltd. Address before: 24-26, building 6013, China Nonferrous building, No. 518040 Shennan Road, Futian District, Guangdong, Che Kung Temple, Shenzhen Patentee before: SHENZHEN ZHONGJIN LINGNAN NONFEMET Co.,Ltd. Patentee before: FANKOU LEAD-ZINC MINE, SHENZHEN ZHONGJIN LINGNAN NONFEMET Co.,Ltd. |