CN102980452A - De-noising and dust removal blast hole stemming method for drilling blasting of earth and stone in urban and rural areas - Google Patents
De-noising and dust removal blast hole stemming method for drilling blasting of earth and stone in urban and rural areas Download PDFInfo
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- CN102980452A CN102980452A CN2012104811730A CN201210481173A CN102980452A CN 102980452 A CN102980452 A CN 102980452A CN 2012104811730 A CN2012104811730 A CN 2012104811730A CN 201210481173 A CN201210481173 A CN 201210481173A CN 102980452 A CN102980452 A CN 102980452A
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Abstract
The invention discloses a de-noising and dust removal blast hole stemming method for drilling blasting of earth and stone in urban and rural areas. According to the method, a stemming section comprises a bottom water bag, a middle inverted funnel and a conventional stemming material, the water bag is tied down by a traction rope and is lifted into a hole, the other end of the traction rope is tied to a bearing bar of an orifice of a blast hole, and the edge of the inverted funnel is clamped on the wall of the blast hole to be fixed. Most of shock wave energy generated by explosion can be converted into internal energy required by water vaporization and atomization and kinetic energy of water jet so as to weaken noise; meanwhile, the blasting dust can be wrapped by dispersed water mist to reduce pollution; and in addition, after the water bag is broken, the lower part of the funnel is filled with water, so that the strength of shock waves is indirectly reduced, the stemming time is prolonged, and the stemming effect is enhanced. The method provided by the invention can also be used in rock blasting construction of mines, water and electricity, traffic and other fields.
Description
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Technical field
The invention belongs to the Geotechnical Engineering field, be specifically related to a kind of de-noising depositing dust obstruction method for town and country cubic metre of earth and stone drillhole blasting.
Background technology
In Geotechnical Engineering Blasting, the big gun hole plug is an important step of drill bursting construction, also is one of key factor that affects demolition effect.Theory and practice shows that all good big gun hole plug can prolong the duration of blasthole pressure, improves the utilization rate of explosive and effectively reduces Property of Blasting Noise.Blast hole stops up and usually adopts stemming as plugging material, but because the various reasons such as construction, material, the obstruction effect in big gun hole is difficult to be guaranteed.In addition, the explosion bulge is broken, the fragmented rock body throwing process, because residual amount of energy will be converted into air-shock wave and noise in the detonation gas, affects people's production and life.In addition, the rock blasting process produces a large amount of flying dust, contaminated environment.Therefore, the efficient blasting technique of environment-friendly type is the direction of development.
Summary of the invention
For the problem that prior art exists, the present invention proposes and a kind ofly can strengthen the obstruction effect, can reach de-noising depositing dust purpose blasthole blocking up method again.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
Be applicable to the de-noising depositing dust blasthole blocking up method of town and country cubic metre of earth and stone drillhole blasting, may further comprise the steps:
Above-mentioned water bag is cylindrical shape, is made by the cloth bag of packing into behind the common plastics water bag water-filling, can avoid water bag to be punctured by the corner angle of hole wall rock, and can bear certain pressure.
Above-mentioned water bag length be the big gun hole always stop up segment length 1/3 ~ 2/3.
Above-mentioned pull rope is nylon rope.
Above-mentioned funnel is that PVC rigid plastics funnel is inverted, and the diameter that funnel is wide mouthful is slightly less than blasthole diameter so that funnel can just enter the big gun hole smoothly.
Above-mentioned bearing bar is rod or rigid plastics bar, no matter be that square bar or round bar all can; Across when the aperture, big gun hole, the bearing bar end is apart from big gun bore edges 5-10 cm.
The technique effect of principle of the present invention and generation is as follows:
Place the water body of the water bag of big gun hole plug section to play on the one hand the effect of conventional blockage body; On the other hand, because the effect of explosion wave and detonation gas, order about and stop up the section water body at a high speed toward motion all around, referring to Fig. 2 and Fig. 3, the front end that cracks because of blast action in the filling rock mass, tamper and and hole wall between hole, make air-shock wave energy major part be converted into the vaporization of water body, the kinetic energy of atomize required interior energy and water body injection, reduce the air superpressure, thereby reach the effect that weakens noise.
Rock mass bulge in blast is broken, the fragment throwing process, and the water smoke that disperses and the globule can wrap up blasting dust well, reduces air pollution.
The setting of funnel can strengthen the obstruction effect among the present invention: after blast causes that water bag breaks, water is full of the upside down funnel that contacts with water bag, and detonation gas must promote whole obstruction section and just can go out, and has therefore indirectly reduced air-shock wave intensity, prolong duration of congestion, strengthened the obstruction effect.
Compared with prior art, the present invention has following advantage and beneficial effect:
1, stop up the section bottom and adopt the water bag of water-filling to stop up, the process lot of energies such as the vaporization of explosion time water, atomizing, injection can effectively reduce noise;
2, stop up the section bottom and adopt the water bag of water-filling to stop up, detonation makes steeping in water for reconstitution give birth to vaporization, atomizing, and the water smoke that produces and the globule wrap the dust that explosion produces, and can effectively reduce the dust pollution that explosion brings;
3, after water bag broke, water was full of the upside down funnel that contacts with water bag, and detonation gas must promote whole obstruction section and just can go out, and has prolonged duration of congestion, has strengthened the obstruction effect;
4, the inventive method is simple, convenient, fast, can guarantee efficiency of construction and engineering effort, is beneficial to environmental protection; Plugging material is simple, easily obtains, and with low cost.
Description of drawings
Fig. 1 is the schematic diagram of the inventive method;
Fig. 2 is near the local enlarged diagram of water bag among the present invention;
Fig. 3 is water sports schematic diagram in the instant of detonation water bag.
Among the figure: 1-water bag, 2-funnel, 3-explosive, the conventional tamper of 4-, 5-pull rope, 6-primacord, 7-bearing bar.
The specific embodiment
The invention will be described further below in conjunction with the specific embodiment of certain earthwork evacuation.
Certain earthwork evacuation: the dark 8m that holes, aperture 90mm stops up segment length 3.0m, adopts continuous charging.
For above-mentioned big gun hole, the specific embodiment of the inventive method is as follows:
(1) water bag that adopts in this implementation is cylindric, and diameter is that 80mm, length are 1.5m.This water bag cloth bag of packing into after by common plastics water bag water-filling is made, and can avoid water bag to be punctured by the corner angle of hole wall rock, and can bear certain pressure.In water bag one end system one nylon rope that can bear water bag weight is arranged, the nylon rope diameter is 0.5cm.
After powder charge was finished, it was in place to adopt nylon rope that water bag is hung in the big gun hole predeterminated position, and this predeterminated position is powder charge section top 5-10cm.The position of water bag in the big gun hole can be regulated by the nylon rope that ties up to the water bag termination.
(2) funnel that adopts in this implementation is PVC rigid plastics funnel, can send smoothly the big gun hole in order to guarantee funnel, and guarantee to obtain more excellent obstruction effect, the diameter that funnel is wide mouthful should be slightly less than blasthole diameter, and the diameter of the wide mouth of funnel is 85mm in this implementation.Above-mentioned funnel is inverted and will be passed nylon rope, funnel is put into the big gun hole until its wide mouthful contact with water bag.
(3) end that nylon rope is not linked to each other with water bag lies in across the bearing bar center in aperture, big gun hole.Bearing bar length in this implementation is 20cm, and its end is apart from big gun bore edges 5cm, and bearing bar can be rod or rigid plastics bar, and its intensity is enough to bear the weight of water bag.
(4) this section residue of funnel top to aperture, big gun hole is stopped up section and fill the conventional plugging materials such as clay, stemming, finish the obstruction that big gun hole residue is stopped up section.
The schematic diagram of the inventive method can be referring to Fig. 1.After finishing above-mentioned steps, ignite, can strengthen the obstruction effect, reach simultaneously the purpose of de-noising depositing dust.
The present invention can be widely used in the obstruction in airspace, the field powder charge drillhole blasting holes such as mine, traffic, water power.
Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has more used the terms such as water bag, PVC rigid plastics funnel, load-bearing band, clay, bearing bar, water, explosive, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (9)
1. be applicable to the de-noising depositing dust blasthole blocking up method of town and country cubic metre of earth and stone drillhole blasting, it is characterized in that, may further comprise the steps
Step 1 after blast hole projectile filling finishes, adopts the pull rope on the water bag that ties up to water-filling that water bag is hung in the big gun hole, is located at powder charge section top 5 ~ 10cm;
Step 2 is passed funnel with pull rope, and funnel is put into the big gun hole makes its wide mouthful contacts with water bag;
Step 3, the end that pull rope is not tied up on the water bag ties up to across on the bearing bar in aperture, big gun hole;
Step 4 is stopped up section to big gun hole residue and is carried out the routine obstruction.
2. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Described water bag is cylindrical shape, is made by the cloth bag of packing into behind the common plastics water bag water-filling.
3. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Described water bag length be the big gun hole always stop up segment length 1/3 ~ 2/3.
4. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Described pull rope is nylon rope.
5. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Described funnel is that PVC rigid plastics funnel is inverted.
6. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Diameter and blasthole diameter that described funnel is wide mouthful are complementary.
7. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Described bearing bar is rod or rigid plastics bar.
8. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
Described bearing bar is round bar or square bar.
9. the de-noising depositing dust blasthole blocking up method that is applicable to town and country cubic metre of earth and stone drillhole blasting as claimed in claim 1 is characterized in that:
The two ends of described bearing bar are apart from big gun bore edges 5-10 cm.
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| CN2012104811730A CN102980452A (en) | 2012-11-23 | 2012-11-23 | De-noising and dust removal blast hole stemming method for drilling blasting of earth and stone in urban and rural areas |
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| CN2012104811730A CN102980452A (en) | 2012-11-23 | 2012-11-23 | De-noising and dust removal blast hole stemming method for drilling blasting of earth and stone in urban and rural areas |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759603A (en) * | 2013-12-23 | 2014-04-30 | 山西潞安环保能源开发股份有限公司 | Self-bursting self-latching hydraulic pressure dust proof friction extrusion bore hole blockage device |
| CN104107609A (en) * | 2014-07-02 | 2014-10-22 | 中国长江三峡集团公司 | Combined dust settling method for large-area excavation and explosion in water conservancy and hydropower project |
| CN106288992A (en) * | 2016-08-10 | 2017-01-04 | 鞍钢集团矿业有限公司 | Application process for the environmental chemistry coalescence agent of surface mine explosion |
| CN106288993A (en) * | 2016-08-10 | 2017-01-04 | 鞍钢集团矿业有限公司 | Application process for the environmental protection dynamic dust coalescence agent of surface mine explosion |
| CN109141149A (en) * | 2018-09-30 | 2019-01-04 | 中建桥梁有限公司 | A kind of tunnel excavation hydraulic pressure demolition construction method |
| CN109708547A (en) * | 2019-01-18 | 2019-05-03 | 中国矿业大学(北京) | A kind of surface mine presplit blasting means for loading |
| CN110160418A (en) * | 2018-03-14 | 2019-08-23 | 中铁十四局集团第四工程有限公司 | A method of unqualified reinforced concrete pile is handled using hydraulic pressure demolition |
| CN110207555A (en) * | 2019-07-09 | 2019-09-06 | 中交路桥建设有限公司 | A kind of weak intercalated layer geology Slope Controlled Blasting method |
| CN110715587A (en) * | 2019-11-19 | 2020-01-21 | 中国电建集团成都勘测设计研究院有限公司 | Air spaced charging auxiliary device for step blasting |
| CN111366048A (en) * | 2020-03-24 | 2020-07-03 | 宋俊生 | Coupling type water cannon mud bag and method for filling blast hole by using same |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759603B (en) * | 2013-12-23 | 2015-11-25 | 山西潞安环保能源开发股份有限公司 | Hydraulic pressure is from spalling Self-closing lock dust-proof friction and Extrusion type perforation plugging device |
| CN103759603A (en) * | 2013-12-23 | 2014-04-30 | 山西潞安环保能源开发股份有限公司 | Self-bursting self-latching hydraulic pressure dust proof friction extrusion bore hole blockage device |
| CN104107609A (en) * | 2014-07-02 | 2014-10-22 | 中国长江三峡集团公司 | Combined dust settling method for large-area excavation and explosion in water conservancy and hydropower project |
| CN104107609B (en) * | 2014-07-02 | 2015-08-05 | 中国长江三峡集团公司 | For the dig on a wide area explosion combination dust-removing method of Hydraulic and Hydro-Power Engineering |
| CN106288992A (en) * | 2016-08-10 | 2017-01-04 | 鞍钢集团矿业有限公司 | Application process for the environmental chemistry coalescence agent of surface mine explosion |
| CN106288993A (en) * | 2016-08-10 | 2017-01-04 | 鞍钢集团矿业有限公司 | Application process for the environmental protection dynamic dust coalescence agent of surface mine explosion |
| CN106288993B (en) * | 2016-08-10 | 2018-03-06 | 鞍钢集团矿业有限公司 | Application process for the environmentally friendly dynamic dust coalescence agent of surface mine explosion |
| CN106288992B (en) * | 2016-08-10 | 2018-03-06 | 鞍钢集团矿业有限公司 | Application process for the environmental chemical coalescence agent of surface mine explosion |
| CN110160418A (en) * | 2018-03-14 | 2019-08-23 | 中铁十四局集团第四工程有限公司 | A method of unqualified reinforced concrete pile is handled using hydraulic pressure demolition |
| CN109141149A (en) * | 2018-09-30 | 2019-01-04 | 中建桥梁有限公司 | A kind of tunnel excavation hydraulic pressure demolition construction method |
| CN109708547A (en) * | 2019-01-18 | 2019-05-03 | 中国矿业大学(北京) | A kind of surface mine presplit blasting means for loading |
| CN110207555A (en) * | 2019-07-09 | 2019-09-06 | 中交路桥建设有限公司 | A kind of weak intercalated layer geology Slope Controlled Blasting method |
| CN110715587A (en) * | 2019-11-19 | 2020-01-21 | 中国电建集团成都勘测设计研究院有限公司 | Air spaced charging auxiliary device for step blasting |
| CN110715587B (en) * | 2019-11-19 | 2024-06-04 | 中国电建集团成都勘测设计研究院有限公司 | Step blasting air space charging auxiliary device |
| CN111366048A (en) * | 2020-03-24 | 2020-07-03 | 宋俊生 | Coupling type water cannon mud bag and method for filling blast hole by using same |
| CN111366048B (en) * | 2020-03-24 | 2022-10-28 | 宋俊生 | Coupling type water cannon mud bag and method for filling blast hole by using same |
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Application publication date: 20130320 |