CN1546817A - Gear wave wall construction method for reinforcing blasting safety - Google Patents
Gear wave wall construction method for reinforcing blasting safety Download PDFInfo
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- CN1546817A CN1546817A CNA2003101065999A CN200310106599A CN1546817A CN 1546817 A CN1546817 A CN 1546817A CN A2003101065999 A CNA2003101065999 A CN A2003101065999A CN 200310106599 A CN200310106599 A CN 200310106599A CN 1546817 A CN1546817 A CN 1546817A
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- wave wall
- gear wave
- construction method
- wall
- shotfiring safety
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a constructing method for a kind of blast safe wave blocking wall. The character lies in it uses the blast source centre as circle centre, sets circle or arc wave blocking wall, the inner radius of the wave blocking wall r= 0.64 meters, the heightH=1.277 meters, the vertical cross section is rectangle trapezium, the top width is a=0.75-1 meters, the angle between the slope and the bottom margin alpha=65 degree ss-75 degree s. The wall uses weaved bag to contain sands, compact piles into the wall body. Places dry grass buckles along the wave blocking inner wall, and uses clay to fix them. The whole thickness of the grass buckles and clay is 0.4-0.5 meters.
Description
One, technical field
The present invention relates to a kind of is the construction method that improves the protector of shotfiring safety and environmental protection in the explosive welding of composite material, specifically is the construction method that strengthens the shotfiring safety gear wave wall.
Two, background technology
Along with national economy and science and technology development,, wide application prospect is arranged as the explosion welding technique of processing advanced composite material (ACM).But the powder charge form of explosive welding mostly is exposed powder charge, and the explosion wave that is produced has very strong destruction to surrounding environment, if exposed explosive payload is 20kg, the intact safe distance of surrounding buildings thing only is 250m, otherwise just has potential safety hazard.But the explosive payload of explosive welding is tens kilograms often, is difficult to find suitable construction plant, and is often remote even the place is arranged, and increased processing cost greatly, and these factors have seriously fettered the development of explosion welding technique and promoted the use of.
Three, summary of the invention
1, goal of the invention: the manufacture method that the purpose of this invention is to provide a kind of enhancing shotfiring safety gear wave wall that in the explosive welding of composite material, uses, this gear wave wall can reduce the adverse effect of explosion wave to surrounding environment greatly, improves simultaneously in the feasibility of implementing explosive welding than the zonule.
2, technical scheme: for achieving the above object, the construction method of shotfiring safety gear wave wall of the present invention is characterized in that with center, quick-fried source be the center of circle, and the gear wave wall of annular or circular arc is set.The shape of gear wave wall should be annular in the semi-infinite half-space, but can make full use of topography and geomorphology, suits measures to local conditions to be designed to semilune.
The interior ring radius of gear wave wall
Rice, C is the explosive payload that is converted to standard TNT, general 5≤C≤60, units.
The height of gear wave wall
Rice.
The vertical section of gear wave wall is a right-angled trapezium, and the top width of gear wave wall is α=0.75～1 meter, and bottom width is b=α+Hctg α, and hypotenuse and base angle are α=65 °～75 °, with further raising shockproof wave.
Gear wave wall is preferably selected dress sandy soil in the woven bag for use, and dense packing becomes the main body of wall.
In order to strengthen wave-absorbing effect, stack the hay bundle along the gear wave wall inwall, and it is fixed with clay.Hay bundle and clay gross thickness are generally 0.4～0.5m.
The invention provides the harm effect analysis that produces about shock wave in the explosive welding, and the mechanism research of control and weakening explosion wave, thereby be the gear wave wall based theoretical; Checking and the means that combine of numerical simulation by experiment provide the optimization result of the above-mentioned major parameter of gear wave wall.
3, beneficial effect: after explosion wave and gear wave wall are had an effect, except reflected shock wave is arranged, the circulation effect of shock wave takes place also.System research is carried out in whole flow field evolution to explosive field, provides the security risk assessment that has under the gear wave wall situation.For 2
#Rock dynamite, density 0.74g/cm
3, quick-fried heat is 3600kJ/kg, and explosive payload is 70kg, and the intact safe distance of surrounding buildings thing is about 800m～1000m during no gear wave wall, and under the situation of identical explosive payload, the intact safe distance of surrounding buildings thing was about 600m～750m when gear wave wall was arranged.If under identical safe distance constraints, there is gear wave wall can improve about 45% than no gear wave wall explosive payload.
Four, description of drawings
Fig. 1 is a gear wave wall vertical direction cross-sectional view of the present invention.
Fig. 2 is that gear wave wall of the present invention is overlooked the direction structure schematic diagram.
Wherein: 1-gear wave wall, 2-massif, 3-composite plate and explosive, the interior ring radius of r-gear wave wall, the top width of a-gear wave wall, the bottom width of b-gear wave wall, the height of H-gear wave wall.
Five, the specific embodiment
The present invention is further elaborated below in conjunction with embodiment:
Explosive welding composite plate with 1Cr18Ni9Ti stainless steel and straight carbon steel is an example, gets 1m standard composite plate length, and the composite surface of substrate and cladding plate is all used grinder buffing.
Baseplate material is the Q235 straight carbon steel, size 1000 * 800 * 24, the mm of unit;
The compound plate material is 1Cr18Ni9Ti, size 1050 * 800 * 8, the mm of unit;
Explosive is 2
#Rock dynamite, explosive density 0.74g/cm
3
The cloth pharmaceutical worker plants and adopts the planar cloth medicine of equal thickness, web 30mm;
Substrate and cladding plate spacing adopt 6mm hard wood particle;
Detonation mode is center, long limit electric detonator initiation;
Gear wave wall be shaped as semicircle, make full use of the massif that surperficial rough and uneven in surface vegetation grows wild;
Ring radius distance powder charge center is approximately equal to 4m in the gear wave wall;
The gear wave wall height is 4m;
The gear wave wall top thickness is 0.75m, the thick 1.8m in bottom;
The material of constructing gear wave wall is loose clay.
Time real quick-fried test surplus 10, its result is: the intact safe distance of surrounding buildings thing was 320m when gear wave wall was arranged, the intact safe distance of surrounding buildings thing is 430m during no gear wave wall; When gear wave wall is arranged on the ground superpressure measured value of distance quick-fried heart 40m, 80m, 160m be respectively 5.32kpa, 2.81kpa, 1.58kpa, during no gear wave wall on the ground measurement superpressure value apart from quick-fried heart 40m, 80m, 160m be respectively 8.58kpa, 3.75kpa, 1.76kpa.
The invention belongs to the technical field that shotfiring safety and environmental protection intersect.Construct gear wave wall around in the quick-fried source of explosive welding, thereby reduce the adverse effect of explosion wave greatly, improve simultaneously in the feasibility of implementing explosive welding than the zonule to surrounding environment.
Claims (8)
1, a kind of construction method of shotfiring safety gear wave wall is characterized in that with center, quick-fried source be the center of circle, and the gear wave wall of annular or circular arc is set.
2, the construction method of shotfiring safety gear wave wall according to claim 1 is characterized in that the interior ring radius of gear wave wall
, C is an explosive payload.
3, the construction method of shotfiring safety gear wave wall according to claim 1 is characterized in that the height of gear wave wall
, C is an explosive payload.
4, the construction method of shotfiring safety gear wave wall according to claim 1, the vertical section that it is characterized in that gear wave wall is a right-angled trapezium.
5, the construction method of shotfiring safety gear wave wall according to claim 4, the napex width that it is characterized in that gear wave wall are α=0.75～1 meter, and hypotenuse and base angle are α=65 °～75 °.
6, the construction method of shotfiring safety gear wave wall according to claim 1 is characterized in that gear wave wall selects dress sandy soil in the woven bag for use, and dense packing becomes the main body of wall.
7,, it is characterized in that stacking the hay bundle, and it is fixed with clay along the gear wave wall inwall according to the construction method of claim 1 or 6 described shotfiring safety gear wave walls.
8, the construction method of shotfiring safety gear wave wall according to claim 7 is characterized in that hay bundle and clay gross thickness are 0.4～0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310106599 CN1219138C (en) | 2003-12-11 | 2003-12-11 | Gear wave wall construction method for reinforcing blasting safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310106599 CN1219138C (en) | 2003-12-11 | 2003-12-11 | Gear wave wall construction method for reinforcing blasting safety |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1546817A true CN1546817A (en) | 2004-11-17 |
| CN1219138C CN1219138C (en) | 2005-09-14 |
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ID=34334263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310106599 Expired - Fee Related CN1219138C (en) | 2003-12-11 | 2003-12-11 | Gear wave wall construction method for reinforcing blasting safety |
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| Country | Link |
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| CN (1) | CN1219138C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926805A (en) * | 2012-11-06 | 2013-02-13 | 广西华锡集团股份有限公司铜坑矿 | Flexible wave blocking wall for underground explosion impact disaster protection |
| CN103244182A (en) * | 2013-05-17 | 2013-08-14 | 长沙矿山研究院有限责任公司 | Prevention method of air shock wave disaster in mine goaf |
| CN108496038A (en) * | 2016-02-29 | 2018-09-04 | 株式会社神户制钢所 | Imflammable gas feeding assembly and barrier |
-
2003
- 2003-12-11 CN CN 200310106599 patent/CN1219138C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926805A (en) * | 2012-11-06 | 2013-02-13 | 广西华锡集团股份有限公司铜坑矿 | Flexible wave blocking wall for underground explosion impact disaster protection |
| CN103244182A (en) * | 2013-05-17 | 2013-08-14 | 长沙矿山研究院有限责任公司 | Prevention method of air shock wave disaster in mine goaf |
| CN108496038A (en) * | 2016-02-29 | 2018-09-04 | 株式会社神户制钢所 | Imflammable gas feeding assembly and barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1219138C (en) | 2005-09-14 |
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