CN103114597B - Environment protection explosion squeezing silting embanking method - Google Patents
Environment protection explosion squeezing silting embanking method Download PDFInfo
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- CN103114597B CN103114597B CN2013100522308A CN201310052230A CN103114597B CN 103114597 B CN103114597 B CN 103114597B CN 2013100522308 A CN2013100522308 A CN 2013100522308A CN 201310052230 A CN201310052230 A CN 201310052230A CN 103114597 B CN103114597 B CN 103114597B
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Abstract
The invention discloses an environment protection explosion squeezing silting embanking method. Explosives inside each hole of explosive bags are divided into a plurality of evenly separated explosives in the order from top to bottom. An air cushion layer is fixedly arranged at the bottom of a section of explosives at the bottom layer, and the mode of blowing up the explosive bags sequentially in sections is adopted in a combination mode. The environment protection explosion squeezing embanking method has the advantages of being capable of buffering and wakening intense earthquake waves, high-pressure impact waves and high-decibel noises generated by the explosion in a short distances, being wider in application range, and capable of being used in areas with higher environment protection requirements like an cultivation area, an area near neighborhood and the like.
Description
Technical field
The present invention relates to a kind of explosion and squeeze silt fill method, especially relate to a kind of environment-friendly type explosion and squeeze silt fill method.
Background technology
China's Coastal Areas has thicker marine mud matter clay layer more, and when based process, if the conventional methods such as employing excavation are removed mud, not only cost is high, and technical difficulty is large.
It is one of ten new technologies of builing industry of Ministry of Construction's popularization that deposit technique is squeezed in explosion.Explosion is squeezed deposit technique and is reduced silt structure intensity by Blast Shock, utilize simultaneously the deadweight of stone riprap itself make quick-fried before stone riprap in equilibrium state to slippage in the mud at strength decreased place, reach the purpose of mud, stone displacement, there are the characteristics such as the low and settling amount of short, cost of duration is little, technical economic benefit is extremely remarkable, has been widely used in the harbour mole and the engineering such as reclaim fields from the sea.
At present, ocean engineering borehole blasting removing silt for replacement mud maximum ga(u)ge has surpassed 20m, and deeper and deeper trend is arranged.Along with the increase of the displacement mud degree of depth, squeeze the silt effect for obtaining good explosion, increase the single hop explosive quantity inevitable with total dose.But, the increase of dose produces sharp pounding, high-pressure shocking wave and high-decibel noise in the time of can causing explosion on the one hand, marine organisms living environment, peripheral resident living and offshore building are formed to tremendous influence, and the policy intractability of blast working is large on the other hand, easily causes claim for eot.Therefore, the crowded silt fill method of conventional blasting method should not be for ,Jin residential block, culture zone and other zone higher to environmental requirement at present.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of crowded silt fill method of environment-friendly type explosion that seismic wave consumingly, high-pressure shocking wave and high-decibel noise that explosion can be produced cushions rapidly decay in short distance, and the method can be for ,Jin residential block, culture zone and other zone higher to environmental requirement.
The present invention solves the problems of the technologies described above adopted technical scheme: silt fill method is squeezed in a kind of environment-friendly type explosion, comprises the following steps:
1. at first according to geology prospecting report, soil mechanics calculation principle and levee body design height, determine levee body throwing height, then according to levee body throwing height and levee body design section, calculate levee body throwing width, again according to the geological condition of Practical Project, repeat the throwing situation on Construction Condition and slope, determine throwing drilling depth length;
2. at first according to Underwater Soft Foundation Treatment by Blasting empirical formula q '
l=q
0l
hh
mwwith
calculate quick-fried unit length dose, the wherein q ' of filling out of dike head
lmean line cloth dose; q
0mean the amount of consumption of drugs of compacting mud by explosion unit volume mud, its span is 0.2～0.3; L
hmean once to push away the throwing drilling depth length of filling out, H
mwmean to count the conversion silt depth that covers the depth of water; H
mmean the displacement silt depth that comprises mud bag bump height; r
mmean water severe; r
wmean mud severe; H
wmean to cover the depth of water, i.e. the above depth of water of mud face; Then determine total dose of onepull according to the dike head width, last according to the definite corresponding hole count of the blasting charge and the explosive payload of the single hole blasting charge laid of total dose;
3. the explosive in the blasting charge of every hole is divided in accordance with the order from top to bottom to evenly isolated a plurality of explosives unit, in the bottom of an explosive unit of the bottom, is fixedly installed air cushion layer;
4. according to total dose of every separate explosion, take explosion minimum influence scope as basis, determine the Influence of The Blasting Vibration zone; And the maximum explosive charge of single hop of determining explosion with this, wherein the maximum explosive charge of single hop is according to formula
calculate, Q is the maximum explosive charge of single hop; V is that safety allows shake speed; R is Influence of The Blasting Vibration Region control ultimate range; K,
be the relevant attenuation parameter of geology, orographic condition in Yu Bao district, the span of K is 50～350,
span be 1.3～2;
5. according to ripple Crow Paderewski formula
calculate the elementary errors time Δ t of non-electric millisecond time-delay detonator, wherein a means pitch of holes; c
pmean the compression stress wave spread speed; t
1mean the deep hole implode pressure-acting time, its empirical value is
q means the explosive payload of the single hole blasting charge;
7. throwing building stones;
8. along jackstone and on every side near the mudstone boundary line of mud the designated depth place lay the blasting charge, and explosion;
9. on the basis of sedimentation jackstone repeating step 7.～8., until guaranteeing that whole jackstones are fully bottomed.
Described step 4. in each explosive unit be spherical cartridge bag.
Described step 4. in spacing between adjacent two explosive unit be 8cm～15cm, the coefficient of coup of each explosive unit is 0.4～0.9, detonating fuse runs through each explosive unit, and air cushion layer is perpendicular to each explosive unit, and each explosive unit and air cushion layer are contained in the cylinder type hollow explosive loader.
Explosive is emulsion, and air cushion layer is nylon bladder.
Compared with prior art, the invention has the advantages that by the explosive by the blasting charge of every hole and be divided in accordance with the order from top to bottom evenly isolated a plurality of explosives unit, bottom in an explosive unit of the bottom is fixedly installed air cushion layer, and in conjunction with adopting the segmentation mode of rendrock bag successively, seismic wave consumingly, high-pressure shocking wave and high-decibel noise that explosion is produced cushion rapidly decay in short distance, the scope of application is more extensive, and method of the present invention can be for ,Jin residential block, culture zone and other zone higher to environmental requirement;
When each explosive unit is spherical cartridge bag in the blasting charge, explosion can be shaken to prompt drop low 40%～60%;
Spacing between adjacent two explosive unit is 8cm～15cm, the coefficient of coup of each explosive unit is 0.4～0.9, detonating fuse runs through each explosive unit, air cushion layer is perpendicular to each explosive unit, when each explosive unit and air cushion layer are contained in the cylinder type hollow explosive loader, can reduce shake speed, extend the propagation time of seismic wave, suppress the propagation distance of concussion of blasting.
The accompanying drawing explanation
The schematic diagram that Fig. 1 is the blasting charge of the present invention;
The floor map that Fig. 2 is blasting construction method;
The schematic cross-sectional view that Fig. 3 is blasting construction method.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment mono-: silt fill method is squeezed in a kind of environment-friendly type explosion, comprises the following steps:
1. at first according to geology prospecting report, soil mechanics calculation principle and levee body design height, determine levee body throwing height, then according to levee body throwing height and levee body design section, calculate levee body throwing width, again according to the geological condition of Practical Project, repeat the throwing situation on Construction Condition and slope, determine throwing drilling depth length;
2. at first according to Underwater Soft Foundation Treatment by Blasting empirical formula q '
l=q
0l
hh
mwwith
calculate quick-fried unit length dose, the wherein q ' of filling out of dike head
lmean line cloth dose, unit is Kg/m; q
0mean the amount of consumption of drugs of compacting mud by explosion unit volume mud, its span is 0.2～0.3, and unit is Kg/m
3; L
hmean once to push away the throwing drilling depth length of filling out, unit is m, H
mwmean to count the conversion silt depth that covers the depth of water, unit is m; H
mmean the displacement silt depth that comprises mud bag bump height, unit is m; r
mmean water severe, unit is Kg/m
3; r
wmean mud severe, unit is Kg/m
3; H
wmean to cover the depth of water, i.e. the above depth of water of mud face, unit is m; Then determine total dose of onepull according to the dike head width, last according to the definite corresponding hole count of the blasting charge 5 and the explosive payload of the single hole blasting charge 5 laid of total dose;
8. the explosive in the blasting charge of every hole is divided in accordance with the order from top to bottom to even isolated multistage explosive, in the bottom of the explosive unit of the bottom, is fixedly installed air cushion layer;
4. according to total dose of every separate explosion, take explosion minimum influence scope as basis, determine the Influence of The Blasting Vibration zone; And the maximum explosive charge of single hop of determining explosion with this, wherein the maximum explosive charge of single hop is according to formula
calculate, Q is the maximum explosive charge (kg) of single hop; V is that safety allows shake speed (cm/s); R is Influence of The Blasting Vibration Region control ultimate range (m); K,
be the relevant attenuation parameter of geology, orographic condition in Yu Bao district, the span of K is 50～350,
span be 1.3～2; Each explosive unit is spherical cartridge bag, spacing between adjacent two explosive unit is 15cm, and the coefficient of coup of each explosive unit is 0.9, and detonating fuse 2 runs through each explosive unit, air cushion layer 3 is perpendicular to each explosive unit, and each explosive unit and air cushion layer 3 are contained in the cylinder type hollow explosive loader; Explosive is emulsion, and air cushion layer 3 is nylon bladder; The K of quick-fried district different lithology,
be worth as shown in table 1;
Table 1
5. according to ripple Crow Paderewski formula
calculate the elementary errors time △ t of non-electric millisecond time-delay detonator, wherein a means pitch of holes, and unit is m.c
pmean the compression stress wave spread speed, unit is m/s; t
1mean the deep hole implode pressure-acting time, its empirical value is
unit is s; Q means the explosive payload of the single hole blasting charge 5, and unit is kg;
7. throwing building stones;
8. along jackstone and on every side near the mudstone boundary line of mud the designated depth place lay the blasting charge 5, and press initiator 4 and carry out explosion;
9. on the basis of sedimentation jackstone repeating step 7.～8., until guaranteeing that whole jackstones are fully bottomed.
Embodiment bis-: silt fill method is squeezed in a kind of environment-friendly type explosion, comprises the following steps:
1. at first according to geology prospecting report, soil mechanics calculation principle and levee body design height, determine levee body throwing height, then according to levee body throwing height and levee body design section, calculate levee body throwing width, again according to the geological condition of Practical Project, repeat the throwing situation on Construction Condition and slope, determine throwing drilling depth length;
2. at first according to Underwater Soft Foundation Treatment by Blasting empirical formula q '
l=q
0l
hh
mwwith
calculate quick-fried unit length dose, the wherein q ' of filling out of dike head
lmean line cloth dose, unit is Kg/m; q
0mean the amount of consumption of drugs of compacting mud by explosion unit volume mud, its span is 0.2～0.3, and unit is Kg/m
3; L
hmean once to push away the throwing drilling depth length of filling out, unit is m, H
mwmean to count the conversion silt depth that covers the depth of water, unit is m; H
mmean the displacement silt depth that comprises mud bag bump height, unit is m; r
mmean water severe, unit is Kg/m
3; r
wmean mud severe, unit is Kg/m
3; H
wmean to cover the depth of water, i.e. the above depth of water of mud face, unit is m; Then determine total dose of onepull according to the dike head width, last according to the definite corresponding hole count of the blasting charge 5 and the explosive payload of the single hole blasting charge 5 laid of total dose;
3. the explosive in the blasting charge of every hole is divided in accordance with the order from top to bottom to even isolated multistage explosive, in the bottom of the explosive unit of the bottom, is fixedly installed air cushion layer;
4. according to total dose of every separate explosion, take explosion minimum influence scope as basis, determine the Influence of The Blasting Vibration zone; And the maximum explosive charge of single hop of determining explosion with this, wherein the maximum explosive charge of single hop is according to formula
calculate, Q is the maximum explosive charge (kg) of single hop; V is that safety allows shake speed (cm/s); R is Influence of The Blasting Vibration Region control ultimate range (m); K,
be the relevant attenuation parameter of geology, orographic condition in Yu Bao district, the span of K is 50～350,
span be 1.3～2; Each explosive unit is spherical cartridge bag, spacing between adjacent two explosive unit is 8cm, and the coefficient of coup of each explosive unit is 0.4, and detonating fuse 2 runs through each explosive unit, air cushion layer 3 is perpendicular to each explosive unit, and each explosive unit and air cushion layer 3 are contained in the cylinder type hollow explosive loader; Explosive is emulsion, and air cushion layer 3 is nylon bladder; The K of quick-fried district different lithology,
be worth as shown in table 2;
Table 2
5. according to ripple Crow Paderewski formula
calculate the elementary errors time △ t of non-electric millisecond time-delay detonator, wherein a means pitch of holes, and unit is m; c
pmean the compression stress wave spread speed, unit is m/s; t
1mean the deep hole implode pressure-acting time, its empirical value is
unit is s; G means the explosive payload of the single hole blasting charge 5, and unit is kg;
7. throwing building stones;
8. along jackstone and on every side near the mudstone boundary line of mud the designated depth place lay the blasting charge, and press initiator 4 and carry out explosion;
9. on the basis of sedimentation jackstone repeating step 7.～8., until guaranteeing that whole jackstones are fully bottomed.
In above-mentioned all embodiment, all doses that the total dose of explosion is once detonation, the dose that dynamite quantity per hole is each hole of dike head, the maximum explosive charge of single hop is for determining periphery is not damaged according to the security implication scope, utilize every section explosive quantity in a sound higher limit after the millisecond detonator segmentation, the total dose of its borehole blasting=dynamite quantity per hole * hole count, the maximum explosive charge * of the total dose of explosion=single hop segments, the maximum explosive charge of single hop is controlled several dynamite quantity per holes: the maximum explosive charge * of dynamite quantity per hole * hole count=single hop segments.
Claims (2)
1. silt fill method is squeezed in an environment-friendly type explosion, it is characterized in that comprising the following steps:
1. at first according to geology prospecting report, soil mechanics calculation principle and levee body design height, determine levee body throwing height, then according to levee body throwing height and levee body design section, calculate levee body throwing width, again according to the geological condition of Practical Project, repeat the throwing situation on Construction Condition and slope, determine throwing drilling depth length;
2. at first according to Underwater Soft Foundation Treatment by Blasting empirical formula q
l'=q
0l
hh
mwwith
calculate quick-fried unit length dose, the wherein q of filling out of dike head
l' expression line cloth dose; q
0mean the amount of consumption of drugs of compacting mud by explosion unit volume mud, its span is 0.2～0.3; L
hmean once to push away the throwing drilling depth length of filling out, H
mwmean to count the conversion silt depth that covers the depth of water; H
mmean the displacement silt depth that comprises mud bag bump height; r
mmean water severe; r
wmean mud severe; H
wmean to cover the depth of water, i.e. the above depth of water of mud face; Then determine total dose of onepull according to the dike head width, last according to the definite corresponding hole count of the blasting charge and the explosive payload of the single hole blasting charge laid of total dose;
3. the explosive in the blasting charge of every hole is divided in accordance with the order from top to bottom to evenly isolated a plurality of explosives unit, in the bottom of an explosive unit of the bottom, is fixedly installed air cushion layer;
4. according to total dose of every separate explosion, take explosion minimum influence scope as basis, determine the Influence of The Blasting Vibration zone; And the maximum explosive charge of single hop of determining explosion with this, wherein the maximum explosive charge of single hop is according to formula
calculate, Q is the maximum explosive charge of single hop; V is that safety allows shake speed; R is Influence of The Blasting Vibration Region control ultimate range; K,
be the relevant attenuation parameter of geology, orographic condition in Yu Bao district, the span of K is 50～350,
span be 1.3～2;
5. according to ripple Crow Paderewski formula
calculate the elementary errors time Δ t of non-electric millisecond time-delay detonator, wherein a means pitch of holes; c
pmean the compression stress wave spread speed; t
1mean the deep hole implode pressure-acting time, its empirical value is
q means the explosive payload of the single hole blasting charge;
6. according to formula
calculate non-electric millisecond delay detonator hop count, above formula result of calculation is that integer is got its value, if non-integer is got its whole value according to advancing a method;
7. throwing building stones;
8. along jackstone and on every side near the mudstone boundary line of mud the designated depth place lay the blasting charge, and explosion;
9. on the basis of sedimentation jackstone repeating step 7.～8., until guaranteeing that whole jackstones are fully bottomed;
Described step 4. in each explosive unit be spherical cartridge bag; Described step 4. in spacing between adjacent two explosive unit be 8cm～15cm, the coefficient of coup of each explosive unit is 0.4～0.9, detonating fuse runs through each explosive unit, and air cushion layer is perpendicular to each explosive unit, and each explosive unit and air cushion layer are contained in the cylinder type hollow explosive loader.
2. silt fill method is squeezed in environment-friendly type explosion according to claim 1, it is characterized in that explosive is emulsion, and air cushion layer is nylon bladder.
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| CN104406471B (en) * | 2014-10-23 | 2016-04-13 | 沈雪松 | The diversion blasting construction method of intertidal zone explosive replacement fill |
| CN106643359B (en) * | 2016-08-17 | 2018-04-17 | 中交一航局第三工程有限公司 | A kind of method of explosive replacement processing slope shoulder position residual sludge |
| CN107228607A (en) * | 2017-06-16 | 2017-10-03 | 长江三峡设备物资有限公司 | A kind of dam foundation ditch base surface constant volume air cushion blasting method |
| CN108360499B (en) * | 2018-02-11 | 2020-10-02 | 北京中科力***技术工程有限公司 | Large-area blasting compaction treatment method for runway foundation |
| CN108842717A (en) * | 2018-07-13 | 2018-11-20 | 陈婷 | A kind of riverway sludge method for cleaning |
| CN109975523B (en) * | 2019-04-29 | 2021-06-29 | 华侨大学 | Method for predicting engineering property of explosive silt-squeezing mixed layer |
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