CN102997765A - Device and method of utilizing detonating pipes to buffer millisecond detonation damping - Google Patents
Device and method of utilizing detonating pipes to buffer millisecond detonation damping Download PDFInfo
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- CN102997765A CN102997765A CN2012105947210A CN201210594721A CN102997765A CN 102997765 A CN102997765 A CN 102997765A CN 2012105947210 A CN2012105947210 A CN 2012105947210A CN 201210594721 A CN201210594721 A CN 201210594721A CN 102997765 A CN102997765 A CN 102997765A
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Abstract
The invention discloses a device and a method of utilizing detonating pipes to buffer millisecond detonation damping. The device and the method of utilizing detonating pipes to buffer millisecond detonation damping utilize the theory that the detonation speed in the detonating pipes is 1600 to 2000 meters / second and the influence that caused by different length of the detonating pipe to the delay time of the detonation is certain. The detonating pipes are good in shock resistance, cannot be motivated by the common mechanical shock, and cannot be contracted and cannot change the detonation transferring performance under the condition of 5 to 7 kilograms dragging force. After the detonation of a noel detonator, the millisecond delay time, the detonating pipes winding on an arc plate and the triple buffering effect of the arc plate, stop and buffer the huge impact to the rocks from the detonation of explosive materials, reduce the shakes to the reserved slope rocks from the detonation; the half-borehole ratio is higher than 93%, accordingly a plurality of cracks on the semi-peripheral rocks of the blasthole are avoided, the accumulated damage to the slope rock from a plurality of detonations is avoided, the stability of slope rock detonation and excavation is increased greatly, and the damage to the buildings around is avoided.
Description
Technical field
The present invention relates to a kind of rock mass engineering project Blasting Excavation uses detonator to cushion device and the blasting technique of short-delay blasting.
Background technology
The water power of China, railway, the non-slope of highway and mine etc. constantly develop in depth, the most of Blasting Excavation that adopts of rock excavation engineering, and thing followed surrounding rock stability problem also highlights day by day.
The vibrations that Blasting Excavation causes are very important influence factors to the stability of surrounding rock body.
Rock mass for different types of structure, the character of its vibrations reaction also is different. the blocky structural rock mass good integrity, deformation behaviour under dynamic action is close to Homogeneous Elastic Solid, stability is better. and the mosaic texture rock mass may cause local avalanche and falling rocks under shock effect, but generally unstable failure can not occur. the cataclastic texture rock mass reacts stronger under shock effect, thereby might becoming flexible of chipping Structure Rock cause large-scale avalanche, falling rocks and small-scale slip. Bedded Rocks is subjected to roofing control, under shock effect, also a large amount of movements may occur.
From the shock-effect that rock mass engineering project blast working excavation produces, the important external factor of adjoining rock stability more and more receives people's concern as an influence.Be necessary to carry out the stable control of concussion of blasting and from more strictly controlled blasting shockproofness of construction technology aspect.
Summary of the invention
In order to address the above problem, it is simple to the purpose of this invention is to provide a kind of combination, easy to use, can significantly stop and reduce explosive charge to the resonant interaction of the enormous impact of rock mass generation, reach the purpose of damping, half porosity can reach more than 93 %, not only can avoid rock to big gun hole half periphery to produce a large amount of cracks but also can avoid because the resonance of concussion of blasting accumulated damage that surrounding rock body is produced repeatedly, and reduced the interference effect of detonation stresses ripple, play buffering elementary errors cushioning effect, thereby the utilization detonator that increases considerably the stability of country rock after the rock mass engineering project Blasting Excavation cushions the device and method of millisecond short delay blasting.
Technical scheme of the present invention is: use detonator to cushion the device of millisecond short delay blasting, this device is comprised of arc plate, explosive cartridge, detonator and priming device, described explosive cartridge is fixed on the described arc plate by described detonator, described detonator one end is connected with described explosive cartridge, and the other end is connected with described priming device;
Further, the radian of described arc plate is between the 100-180 degree.
Further, the material of described arc plate is iron sheet or incombustible highly elastic material.
Another object of the present invention provides the blasting method of said apparatus, specifically may further comprise the steps:
1. the Blasting Excavation zoning is decided the peripheral profile line, and arrange the big gun hole in main body Blasting Excavation district, blasthole diameter is 50-120 millimeters, and boring length is more than 3.5 meters, 3-9 meters of the spacings of wells;
2, calculate the explosive cartridge consumption according to burst size;
3. according to the detonator that intercepts corresponding length time delay;
4. the explosive cartridge that will take by weighing fixedly is on the described arc plate by described detonator, one end of described detonator is connected with described explosive cartridge, the fixing arc plate of explosive is put into described big gun hole, arc plate is side slope dorsad, the other end of described detonator caused boring is outer to be connected with priming device, with the good big gun of yellow mud shutoff hole, detonate by custom-designed compound electric explosion network, detonator system; After the explosion, half porosity can reach more than 93%.
Beneficial effect of the present invention: adopt technique scheme, after the explosion, this device can significantly stop and cushion the energy that explosive blasting discharges, thereby greatly reduce blast to the impact of surrounding rock body, half porosity can reach more than 93%, not only can avoid rock to big gun hole half periphery to produce a large amount of cracks but also can avoid because the resonance of concussion of blasting accumulated damage that surrounding rock body is produced repeatedly, and thereby the interference effect that has reduced the detonation stresses ripple significantly increases the stability of country rock after the rock mass engineering project Blasting Excavation, and economic benefit is huge.
Description of drawings:
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the top view of apparatus of the present invention.
Fig. 3 is the structural representation of embodiments of the invention.
Among the figure:
1. slope rock mass, 2. big gun hole, 3. arc plate, 4. explosive cartridge, 5. detonator, 6. stemming, 7. priming device.
The specific embodiment:
Below in conjunction with accompanying drawing technical scheme of the present invention is described further.
As shown in Figure 1, the present invention uses detonator to cushion the damping device of millisecond short delay blasting, and this device is comprised of arc plate 3, explosive cartridge 4, detonator 5 and priming device 7,
During use, slope rock mass 1 in explosion is dug big gun hole 2, explosive cartridge 4 will be put in the circular arc plate 3, detonator 5 is entangled in around circular arc plate 3 and the explosive cartridge 4, explosive cartridge 4 is fixing, put into the big gun hole 2 adjacent with side slope (excavated section country rock) rock mass 1, arc plate 3 is side slope dorsad, the other end of detonator 5 causes outside the big gun hole and is connected with priming device 7, after detonating, the elementary errors defer time of detonator 5 and be wrapped in detonator 5 on the arc plate 3 and the triple cushioning effects of shock insulation of arc plate 3, can significantly stop and cushion the enormous impact that explosive blasting produces rock mass, greatly reduce blast to reserving the vibrations of slope rock mass 1, half porosity can reach more than 93%, not only can avoid rock to big gun hole half periphery to produce a large amount of cracks but also can avoid because concussion of blasting accumulated damage that rock mass is produced repeatedly, thereby significantly increase the stability of rock mass slope Blasting Excavation, avoid simultaneously the Adjacent Buildings facility produced and damage.
Blasting method of the present invention is, specifically may further comprise the steps:
1. the Blasting Excavation zoning is decided the peripheral profile line, and arrange the big gun hole in main body Blasting Excavation district, blasthole diameter is 50-120 millimeters, and boring length is more than 3.5 meters, 3-9 meters of the spacings of wells;
2, calculate the explosive cartridge consumption according to burst size;
3. according to the detonator that intercepts corresponding length time delay;
4. the explosive cartridge that will take by weighing fixedly is on the described arc plate by described detonator, one end of described detonator is connected with described explosive cartridge, the fixing arc plate of explosive is put into described big gun hole, arc plate is side slope dorsad, the other end of described detonator caused boring is outer to be connected with priming device, with the good big gun of yellow mud shutoff hole, detonate by custom-designed compound electric explosion network, detonator system; After the explosion, half porosity can reach more than 93%.
Explosion velocity 1,600 one 2000 meter per seconds in the detonator, the detonator of different length has certain impact to the explosion defer time,
Example 1:
Certain city water factory tank, build on the mountain top, apart from about the 6 meters massif side slopes in addition in pond, need Blasting Excavation to fall, grade of side slope is 75 degree, high about 60 meters, adopt apparatus of the present invention and inventive method, cushion short-delay blasting, 16 meters detonators can reach 10 milliseconds elementary errors delay time, adopt the Nonel detonator of 15 meters of payment to a porter, detonator one end of the detonating capsule in each big gun hole connects 22 meters detonators, so again, each big gun hole can reach 20 milliseconds elementary errors time-delay, segmentation is successively excavated, and damping effect is good, to office building on every side, water factory and residential building be impact not.
Example 2: certain city builds highway on a group hillside, carry out Blasting Excavation, apart from about 20 meters on highway the resident room is arranged, and adopts apparatus of the present invention and inventive method, cushions short-delay blasting, and damping effect is good, on the not impact of surrounding resident building.
More than one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (4)
1. use detonator to cushion the device of millisecond short delay blasting damping, it is characterized in that, this device is comprised of arc plate, explosive cartridge, detonator and priming device, described explosive cartridge is fixed on the described arc plate by described detonator, described detonator one end is connected with described explosive cartridge, and the other end is connected with described priming device.
2. device according to claim 1 is characterized in that, the radian of described arc plate is between the 100-180 degree.
3. device according to claim 1 is characterized in that, the material of described arc plate is iron sheet or incombustible highly elastic material.
4. as claimed in claim 1 blasting method of device specifically may further comprise the steps:
1). the Blasting Excavation zoning is decided the peripheral profile line, and arrange the big gun hole in main body Blasting Excavation district, blasthole diameter is 50-120 millimeters, and boring length is more than 3.5 meters, 3-9 meters of the spacings of wells;
2), calculate the explosive cartridge consumption according to burst size;
3). according to the detonator that intercepts corresponding length time delay;
4). the explosive cartridge that will take by weighing fixedly is on the described arc plate by described detonator, one end of described detonator is connected with described explosive cartridge, the fixing arc plate of explosive is put into described big gun hole, arc plate is side slope dorsad, the other end of described detonator caused boring is outer to be connected with priming device, with the good big gun of yellow mud shutoff hole, detonate by custom-designed compound electric detonation, detonator hybrid network system; After the explosion, half porosity can reach more than 93%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105947210A CN102997765A (en) | 2012-12-31 | 2012-12-31 | Device and method of utilizing detonating pipes to buffer millisecond detonation damping |
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| CN2012105947210A CN102997765A (en) | 2012-12-31 | 2012-12-31 | Device and method of utilizing detonating pipes to buffer millisecond detonation damping |
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| CN102997765A true CN102997765A (en) | 2013-03-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217199A (en) * | 2014-09-15 | 2014-12-17 | 武汉大学 | Statistical method of semi-porosity based on close-range photogrammetric technology |
| CN112525031A (en) * | 2020-11-30 | 2021-03-19 | 湖北三江航天红林探控有限公司 | Safe and reliable remote destroying device and destroying method thereof |
| RU2820793C1 (en) * | 2023-05-18 | 2024-06-10 | Федеральное государственное бюджетное учреждение науки Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской академии наук (ХФИЦ ДВО РАН) | Method of measuring detonation velocity of borehole charge with direct initiation |
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| US4167139A (en) * | 1977-05-23 | 1979-09-11 | Austin Powder Company | Time delay primer and method of using same |
| WO2008100347A2 (en) * | 2006-10-19 | 2008-08-21 | Carroll Bassett | Self-stemming cartridge |
| CN101545747A (en) * | 2009-05-03 | 2009-09-30 | 张志呈 | Projectile charging structure for directional pressure relief vibration isolation blasting |
| CN101900519A (en) * | 2009-05-25 | 2010-12-01 | 同济大学 | Bamboo-chip smooth wall protection blasting method for joint fissure mud rock slope |
| CN202024696U (en) * | 2011-03-23 | 2011-11-02 | 义马煤业集团股份有限公司常村煤矿 | Orientation-controlled rigid sheathed blasting explosive cartridge |
| CN203203487U (en) * | 2012-12-31 | 2013-09-18 | 广东宏大***股份有限公司 | Device of utilizing detonating pipes to buffer millisecond detonation damping |
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2012
- 2012-12-31 CN CN2012105947210A patent/CN102997765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167139A (en) * | 1977-05-23 | 1979-09-11 | Austin Powder Company | Time delay primer and method of using same |
| WO2008100347A2 (en) * | 2006-10-19 | 2008-08-21 | Carroll Bassett | Self-stemming cartridge |
| CN101545747A (en) * | 2009-05-03 | 2009-09-30 | 张志呈 | Projectile charging structure for directional pressure relief vibration isolation blasting |
| CN101900519A (en) * | 2009-05-25 | 2010-12-01 | 同济大学 | Bamboo-chip smooth wall protection blasting method for joint fissure mud rock slope |
| CN202024696U (en) * | 2011-03-23 | 2011-11-02 | 义马煤业集团股份有限公司常村煤矿 | Orientation-controlled rigid sheathed blasting explosive cartridge |
| CN203203487U (en) * | 2012-12-31 | 2013-09-18 | 广东宏大***股份有限公司 | Device of utilizing detonating pipes to buffer millisecond detonation damping |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217199A (en) * | 2014-09-15 | 2014-12-17 | 武汉大学 | Statistical method of semi-porosity based on close-range photogrammetric technology |
| CN104217199B (en) * | 2014-09-15 | 2017-08-08 | 武汉大学 | A kind of Half cast factor statistical method based on close-shot photography measure technique |
| CN112525031A (en) * | 2020-11-30 | 2021-03-19 | 湖北三江航天红林探控有限公司 | Safe and reliable remote destroying device and destroying method thereof |
| CN112525031B (en) * | 2020-11-30 | 2023-01-24 | 湖北三江航天红林探控有限公司 | Safe and reliable remote destroying device and destroying method thereof |
| RU2820793C1 (en) * | 2023-05-18 | 2024-06-10 | Федеральное государственное бюджетное учреждение науки Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской академии наук (ХФИЦ ДВО РАН) | Method of measuring detonation velocity of borehole charge with direct initiation |
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Application publication date: 20130327 |