CN102778183A - Blast construction method - Google Patents
Blast construction method Download PDFInfo
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- CN102778183A CN102778183A CN2012102873342A CN201210287334A CN102778183A CN 102778183 A CN102778183 A CN 102778183A CN 2012102873342 A CN2012102873342 A CN 2012102873342A CN 201210287334 A CN201210287334 A CN 201210287334A CN 102778183 A CN102778183 A CN 102778183A
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- blasting
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Abstract
The invention relates to the field of engineering, and specifically relates to a blast construction method. The method comprises the following steps of: drilling a hole in a horizontal direction of a blasting body except vertical blast holes, thereby forming horizontal blasting holes, wherein the horizontal blasting holes are distributed in a rectangular array form; and firstly firing detonators in the horizontal blasting holes of the bottommost layer in the horizontal blasting holes in firing, then firing the detonators in the vertical blast holes, and finally firing the residual detonators in the horizontal blasting holes. The blast construction method has the advantages that the horizontal blasting holes are increased on the blasting body, the detonators in the blasting holes of the bottommost layer in the horizontal blasting holes are fired, then the detonators in the vertical blast holes are fired, and finally the residual detonators in the horizontal blasting holes are fired, so that the blasting body forms a horizontal step capable of being used as a working face, and the workload of manual cleaning for next blast is reduced.
Description
Technical field
The present invention relates to the engineering field, be specifically related to a kind of blasting construction method.
Background technology
In engineering construction processes such as road, tunnel, water conservancy, bridge, usually need carry out blast working, in the existing blasting construction method to massif; Adopt vertically open-air deep hole blasting method mostly; Promptly in blasting body, get out vertical deep hole,, in vertical blast hole, put into explosive and carry out explosion as vertical blast hole; But owing to can't form a working face after each explosion; Before the following separate explosion, need carry out a large amount of cleaning works, cause whole blast working time lengthening to form working face.
Summary of the invention
The invention provides a kind of blasting construction method, can reduce forming the required cleaning work of working face.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of blasting construction method, this method comprises:
Except that vertical blast hole, the horizontal direction boring in blasting body forms the horizontal blasting hole;
Said horizontal blasting hole distributes with the rectangular array form;
When detonating, the explosive in the said horizontal blasting hole of detonating earlier in the horizontal blasting hole of the bottom, the explosive in the vertical blast hole that detonates again, the explosive in the horizontal blast hole of the residue of detonating at last.
Preferably, said vertical blast hole adopts the rhombus array format to distribute.
Preferably, non-coupling charging is adopted in said horizontal blasting hole.
Preferably, spaced loading is adopted in the horizontal blasting hole of the bottom in the said horizontal blasting hole, and continuous charging is adopted in all the other horizontal blasting holes.
Preferably, said horizontal blasting hole employing inverse initiation.
Preferably, said explosive adopts non-electric delayed detonator for loading in mixture porous particulated ammonium oil explosive.
Preferably, said detonating is millisecond detonating.
Preferably, said firing order is that V-arrangement, trapezoidal or wave are detonated.
Preferably, said initiation net is connected to parallel connection.
Compared with prior art, blasting construction method provided by the invention has increased the horizontal blasting hole on blasting body; When detonating; Detonate earlier explosive in the blast hole of the bottom in the horizontal blasting hole, the explosive in the vertical blast hole of explosion again, remaining water screen blast hole at last detonates; Thereby can after explosion, make blasting body form a horizontal bench that can be used as working face, thereby be reduced to down the labor cleaning's that separate explosion carries out workload.
In addition, the embodiment of the invention can also produce following effect:
1, add vertical explosion through horizontal blasting and reduce cubic meter of stone boulder yield to greatest extent, general particle diameter is no more than 50cm, make the cubic meter of stone after the explosion can be used as roadbed filling and use, the second-time breakage cost when having reduced the explosion cubic meter of stone as filler.
2, add vertical explosion through horizontal blasting, can make working face, be convenient to mechanized construction, save explosive, reduce cost the reduction of erection time.
3, through reasonably confirming blasting parameter, can avoid adopting excessive minimum burden, prevent to produce chongtian mortar.Can adjust millisecond detonating scheme and elementary errors blanking time flexibly, guarantee that rock can be fully loosening, eliminate folder system blasting condition.
4, adopt indirect initiation, and stop up blast hole, can prevent that gases at high pressure from going out from the explosion aperture with loess.Adopt detonator or electric detonator initiation; Detonate without the high energy rope that detonates, the detonator networking is because simple to operate, do not receive external film ring (except the thunder and lightning), cost low, can realize uniformly-spaced millisecond detonating and detonate hop count and big gun hole are not limited by the detonator hop count; Efficiency of construction is high, and safe effect is good.
5, add the horizontal bench that vertical explosion is created through horizontal blasting, making in the enforcement explosion of the precipitous location of steep cliff becomes possibility.
Description of drawings
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in the specific embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is embodiments more of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the blasting construction method flow chart of the embodiment of the invention.
Fig. 2 is the blasting construction method flow chart of another embodiment of the present invention.
Fig. 3 is a horizontal blasting hole arrangement form sketch map in the embodiment of the invention.
Fig. 4 is a vertical blast hole arrangement form sketch map in the embodiment of the invention.
Fig. 5 is the reverse continuous charging mode of a non-coupling sketch map in the embodiment of the invention.
Fig. 6 is a non-coupling back span charging means sketch map in the embodiment of the invention.
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer; To carry out clear, complete description to technical scheme of the present invention below; Based on the specific embodiment among the present invention; Those of ordinary skills are resulting all other embodiments under the prerequisite of not making creative work, the scope that all belongs to the present invention and protected.
Fig. 1 is the blasting construction method flow chart of the embodiment of the invention, comprises the steps:
Wherein, said horizontal blasting hole is as shown in Figure 3, distributes with the rectangular array form.
Through the detonation mode in the step 102; Can make blasting body form a horizontal bench plane in the back of detonating; Can be used as the working face of explosion next time; Go out a cleaning work amount that working face is required thereby greatly reduced the labor cleaning, greatly shortened the engineering time of whole blasting engineering.
Wherein, vertically blast hole can adopt rhombus array format as shown in Figure 4 (claiming the plum blossom form again) to distribute.Non-coupling charging all can be adopted with vertical blast hole in the horizontal blasting hole, and in the horizontal blasting hole, spaced loading can be adopted in the horizontal blasting hole of the bottom, and continuous charging can be adopted in all the other horizontal blasting holes.
In addition, all blast holes can adopt inverse initiation.Explosive can adopt and load in mixture porous particulated ammonium oil explosive, and adopts non-electric delayed detonator, stops up blast hole with loess, and stemming length is not less than 3.0m.
When detonating, can adopt millisecond detonating, the time difference that adjacent blast hole successively detonates is not more than 150mms.Firing order can be detonated for V-arrangement, trapezoidal or wave.Initiation net can adopt and be connected in parallel.
Wherein, reverse continuous charging mode can be adopted in the horizontal blasting hole, and is as shown in Figure 5, and the blast hole bottom is filled out successively and put detonator 1, powder stick 2, expanded casing 3 and stuffing 4, and detonator 1 is parallel to blasting network through connecting line 5.
In the horizontal blasting hole, the blast hole of the bottom can adopt the back span charging means, and is as shown in Figure 6, and blast hole bottom is filled out successively and put detonator 1, powder stick 2, expects 6 at interval, powder stick 2, expects 6 and stuffing 4 at interval, and detonator 1 is parallel to blasting network through connecting line 5.Wherein, powder stick 2 guarantees to fill out to put at interval to get final product with interval 6, and concrete quantity can be confirmed as required.
The blasting construction method of another embodiment of the present invention is as shown in Figure 2, comprises the steps:
The laying of blast hole such as above-mentioned embodiment are said, repeat no more here.
Adopt non-electric delayed detonator, load in mixture the reverse continuous charging of porous particulated ammonium oil explosive, remaining space stops up closely knit (length is not less than 3.0m) with loess.Can use nonmetal stock such as bamboo or plastics to make to run rod during powder charge.Can use the race rod constantly to survey the loaded length of blast hole during deep hole explosive,, it is controlled in the scope of design so that in time grasp explosive payload.To guarantee contact closely between powder stick during powder charge, in order to avoid produce blind big gun.The chip ballast that stops up available pores limit drilling cuttings or rejected stone is made stuffing, prevent that stone is stuck in to make in the big gun hole to stop up to form the cavity and influence blasting quality or safety is exerted an influence.
Wherein, elementary errors t blanking time takes all factors into consideration factors such as blasting method, vibration control and fragmentation quality and confirms.The time difference that adjacent blast hole successively detonates is not more than 150mms.
In the process of above-mentioned explosion, ill-effect has seismic wave, slungshot, shock wave, toxic gas, noise and dust.As open-air deep hole blasting; Can carry out Calculation of Safety Distance respectively to seismic wave, slungshot, three of shock waves; Assurance meets safety requirements; The reliable initiation of blasting circuit also is the emphasis of security control simultaneously, can select different blast hole distributed constants according to different blast hole apertures, like level and the perpendicular separation distance between rectangular array or the rhombus array borehole blasting hole.
What should explain at last is: above embodiment and specific embodiment be only in order to explaining technical scheme of the present invention, but not to its restriction; Although the present invention has been carried out detailed explanation with reference to aforementioned embodiments and specific embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned embodiments is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make essence disengaging each embodiment of the present invention of relevant art scheme and the spirit and the scope of specific embodiment technical scheme.
Claims (9)
1. a blasting construction method is characterized in that, this method comprises:
Except that vertical blast hole, the horizontal direction boring in blasting body forms the horizontal blasting hole;
Said horizontal blasting hole distributes with the rectangular array form;
When detonating, the explosive in the said horizontal blasting hole of detonating earlier in the horizontal blasting hole of the bottom, the explosive in the vertical blast hole that detonates again, the explosive in the horizontal blast hole of the residue of detonating at last.
2. blasting construction method as claimed in claim 1 is characterized in that, said vertical blast hole adopts the rhombus array format to distribute.
3. blasting construction method as claimed in claim 1 is characterized in that, non-coupling charging is adopted in said horizontal blasting hole.
4. blasting construction method as claimed in claim 1 is characterized in that, spaced loading is adopted in the horizontal blasting hole of the bottom in the said horizontal blasting hole, and continuous charging is adopted in all the other horizontal blasting holes.
5. blasting construction method as claimed in claim 1 is characterized in that, inverse initiation is adopted in said horizontal blasting hole.
6. blasting construction method as claimed in claim 1 is characterized in that, said explosive adopts non-electric delayed detonator for loading in mixture porous particulated ammonium oil explosive, stops up blast hole with loess.
7. blasting construction method as claimed in claim 1 is characterized in that, said detonating is millisecond detonating.
8. the described blasting construction method of claim 1 is characterized in that, said firing order is that V-arrangement, trapezoidal or wave are detonated.
9. the described blasting construction method of claim 1 is characterized in that, said initiation net is connected to parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287334.2A CN102778183B (en) | 2012-08-10 | 2012-08-10 | Blast construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210287334.2A CN102778183B (en) | 2012-08-10 | 2012-08-10 | Blast construction method |
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| CN102778183A true CN102778183A (en) | 2012-11-14 |
| CN102778183B CN102778183B (en) | 2015-02-11 |
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| CN201210287334.2A Expired - Fee Related CN102778183B (en) | 2012-08-10 | 2012-08-10 | Blast construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591860A (en) * | 2013-11-29 | 2014-02-19 | 武汉大学 | Water coupling gunpowder filling and ignition method for improving small-particle-size material content of rock-fill dam transition material |
| CN105135962A (en) * | 2015-08-21 | 2015-12-09 | 西北矿冶研究院 | Method for improving deep-hole step blasting quality of extremely hard rock |
| CN108088336A (en) * | 2017-12-14 | 2018-05-29 | 中国水利水电第六工程局有限公司 | A kind of factory building foundation rock blasting device and Blasting Control method |
| CN110629762A (en) * | 2019-08-19 | 2019-12-31 | 国家电网有限公司 | Excavation method of joint fissure development rock mass |
| CN112097578A (en) * | 2020-08-13 | 2020-12-18 | 葛洲坝易普力湖南二化民爆有限公司 | Method for controlling root bottom of open-pit limestone mine after blasting |
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| RU2044998C1 (en) * | 1992-10-07 | 1995-09-27 | Восточный научно-исследовательский горнорудный институт | Method for rock blasting in open pit |
| CN1375680A (en) * | 2001-03-20 | 2002-10-23 | T&Rb株式会社 | Rock stepped blasting method of increasing blasting efficiency and reducing blasting damage |
| CN101424503A (en) * | 2007-11-01 | 2009-05-06 | 鞍钢集团矿业公司 | Rim angle excavation method by blasting for natural side hill |
| CN102607353A (en) * | 2012-02-27 | 2012-07-25 | 薛世忠 | Open bench inter-hole differential control blasting method |
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2012
- 2012-08-10 CN CN201210287334.2A patent/CN102778183B/en not_active Expired - Fee Related
Patent Citations (4)
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| RU2044998C1 (en) * | 1992-10-07 | 1995-09-27 | Восточный научно-исследовательский горнорудный институт | Method for rock blasting in open pit |
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| CN101424503A (en) * | 2007-11-01 | 2009-05-06 | 鞍钢集团矿业公司 | Rim angle excavation method by blasting for natural side hill |
| CN102607353A (en) * | 2012-02-27 | 2012-07-25 | 薛世忠 | Open bench inter-hole differential control blasting method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591860A (en) * | 2013-11-29 | 2014-02-19 | 武汉大学 | Water coupling gunpowder filling and ignition method for improving small-particle-size material content of rock-fill dam transition material |
| CN105135962A (en) * | 2015-08-21 | 2015-12-09 | 西北矿冶研究院 | Method for improving deep-hole step blasting quality of extremely hard rock |
| CN108088336A (en) * | 2017-12-14 | 2018-05-29 | 中国水利水电第六工程局有限公司 | A kind of factory building foundation rock blasting device and Blasting Control method |
| CN110629762A (en) * | 2019-08-19 | 2019-12-31 | 国家电网有限公司 | Excavation method of joint fissure development rock mass |
| CN110629762B (en) * | 2019-08-19 | 2021-06-15 | 国家电网有限公司 | Excavation method of joint fissure development rock mass |
| CN112097578A (en) * | 2020-08-13 | 2020-12-18 | 葛洲坝易普力湖南二化民爆有限公司 | Method for controlling root bottom of open-pit limestone mine after blasting |
| CN112097578B (en) * | 2020-08-13 | 2023-02-21 | 葛洲坝易普力湖南二化民爆有限公司 | Method for controlling root bottom of open-pit limestone mine after blasting |
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| CN102778183B (en) | 2015-02-11 |
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