CN104819671A - Dust settling and shock absorbing method for building blasting demolition - Google Patents
Dust settling and shock absorbing method for building blasting demolition Download PDFInfo
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- CN104819671A CN104819671A CN201510227197.7A CN201510227197A CN104819671A CN 104819671 A CN104819671 A CN 104819671A CN 201510227197 A CN201510227197 A CN 201510227197A CN 104819671 A CN104819671 A CN 104819671A
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Abstract
The invention discloses a dust settling and shock absorbing method for building blasting demolition, and belongs to the technical field of blasting demolition. The method includes the steps of firstly, digging grooves in the direction perpendicular to the collapse direction of a building within the collapse range of the building to be blasted; secondly, filling one side of each groove with earth generated through groove digging to form a ridge; thirdly, laying anti-seepage thin films on the walls of the grooves, pouring water into the grooves, and arranging waterproof explosives at the bottoms of the grooves at intervals; fourthly, igniting the waterproof explosives before the building to be blasted collapses to the portions over the grooves; fifthly, recycling the anti-seepage thin films in the grooves after residue discharge is completed; sixthly, filling the grooves with the ridges, and leveling the ground. By means of the method, the throwing height and scale of water mist can be ensured, and the effect of dust settling achieved through the blasting water mist is improved.
Description
Technical field
The invention belongs to BLASTING TECHNOLOGY FOR DEMOLITION field, particularly the depositing dust removed of a kind of structure demolition and shock-dampening method.
Background technology
Along with the progress of society and the development of urban construction, China's Old City building demolition amount increases year by year.The effect of demolition blasting in urban development is increasing, but demolition blasting dust-producing amount is large, has a strong impact on people's life, and blasting dust governing problem is day by day subject to people and pays close attention to.For addressing this problem, many blasting engineering technical staff have done a large amount of explorations and trial, propose many methods and are applied in engineering.Wherein blasting water mist dust-settling technology because its cost is low, easy construction and dust-laying effect is good etc. that advantage is extensively adopted by engineers and technicians.
In engineering practice, blasting water mist depositing dust must have proper water container, at present, widely used is the common vessel such as water bag and bucket, when the single position explosion in local, water bag and bucket can wait small containers substantially can ensure good dust-laying effect, but when carrying out structure demolition and removing, its slump disintegration scope is large, dust concentration is high, range of scatter is far away, small containers capacity is little is difficult to be formed extensive water smoke for conventional water bag and bucket etc., and due to without surrounding effect of contraction, major part water smoke is close to earth's surface, a small amount of water smoke is only had to soar, dust-laying effect is difficult to ensure, also there is water bag easily damaged simultaneously, the problems such as bucket price is high.
Summary of the invention
The object of the invention is a kind ofly to need the guarantee dust removing effects of explosion and the method for damping at building for solving the problem and providing.
The technical solution adopted in the present invention is:
The depositing dust that structure demolition is removed and a shock-dampening method, comprise the following steps:
(1) within the scope of the slump of building needing explosion, perpendicular to building collapsing direction digging groove;
(2) earthwork that digging groove produces is filled into a low bank of earth between fields in the side of described groove;
(3) on described trench wall, lay impervious film, pour water in described groove, and arrange water-proof explosive at described channel bottom interval;
(4) at the described building collapsing of explosion that needs to before directly over described groove, detonate described water-proof explosive;
(5) the impervious film of having slagged tap in the described groove of rear recovery;
(6) the described low bank of earth between fields is filled out back in described groove, grade.
Preferably, the quantity of described groove is at least one.
More preferably, the section of described groove is trapezoidal.
Further, in described step (2), need watering humidification on the described low bank of earth between fields.
Preferably, the section of the described low bank of earth between fields is trapezoidal.
Further, in described step (3), described channel bottom arranges water-proof explosive along groove axis at intervals.
Preferably, between described groove and the described building needing explosion at a distance of 15m.
The present invention has the following advantages:
(1) the present invention is by excavation groove to form the uncovered water container of Large Copacity, surrounding Constrained, can ensure throwing height and the scale of water smoke, improve the effect of explosion water mist dust fall;
(2) groove excavated can play function of shock insulation, reduces the impact of blasting vibration on around explosion object;
(3) low bank of earth between fields that excavation groove is formed also can reduce speed when building contacts to earth, and plays cushioning effect, reduces contact to earth shock effect and touchdown vibration.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention process example groove;
Fig. 2 is the structural representation of the invention process example trench section and the low bank of earth between fields;
Fig. 3 is the structural representation of paving barrier film in the invention process example groove;
Fig. 4 is the structural representation of pouring water in the invention process example groove;
Fig. 5 is the structural representation of explosive in the invention process example groove;
Fig. 6 is the structural representation of the invention process example groove explosive initiation.
Detailed description of the invention
Below in conjunction with drawings and embodiments, the present invention will be further described in detail.
Certain 10 layers of building (1), long 30m, wide 10m, high 30m, intend adopting blasting method to remove, and adopt following step to carry out depositing dust damping, step is as follows:
With reference to Fig. 1, step 1: in the slump scope (2) of building (1), collapse direction perpendicular to building (1) excavates four grooves (4), groove (4) long 30m, section is inverted trapezoidal, wide 1.5m suitable for reading, the wide 1m in bottom, dark 2m;
With reference to Fig. 2, step 2: fill into a low bank of earth between fields (5) by excavating the earthwork that groove (4) produces in groove (4) side, the section of the low bank of earth between fields (5) is trapezoidal, top width 1m, bottom width 2m, high 2m, and humidification of sprinkling water on the low bank of earth between fields (5);
With reference to Fig. 3 to Fig. 5, step 3: lay polyethylene barrier film (6) on groove (4) wall, (7) are poured water in groove (4), and in groove (4) bottom along groove axis (3) interval 1.5m cloth 400g water-proof explosive (8), and insert Nonel detonator (9) and link blasting network;
With reference to Fig. 6, step 4:(D) before building (1) collapses to groove (4), the water-proof explosive (8) in the groove that detonates (4), forms water smoke (10);
Step 5: the barrier film (6) of having slagged tap in rear recovery groove (4);
Step 6: the low bank of earth between fields (5) is filled out back groove (4), grade.
The present invention to form the uncovered water container of Large Copacity, surrounding Constrained by excavation groove, can be ensured throwing height and the scale of water smoke, improve the effect of explosion water mist dust fall; The groove of excavation can play function of shock insulation, reduces the impact of blasting vibration on around explosion object; The low bank of earth between fields that excavation groove is formed also can reduce speed when building contacts to earth, and plays cushioning effect, reduces contact to earth shock effect and touchdown vibration.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. structure demolition remove depositing dust and a shock-dampening method, it is characterized in that, comprise the following steps:
(1) within the scope of the slump of building needing explosion, perpendicular to building collapsing direction digging groove;
(2) earthwork that digging groove produces is filled into a low bank of earth between fields in the side of described groove;
(3) on described trench wall, lay impervious film, pour water in described groove, and arrange water-proof explosive at described channel bottom interval;
(4) at the described building collapsing of explosion that needs to before directly over described groove, detonate described water-proof explosive;
(5) the impervious film of having slagged tap in the described groove of rear recovery;
(6) the described low bank of earth between fields is filled out back in described groove, grade.
2. the depositing dust removed of structure demolition according to claim 1 and shock-dampening method, it is characterized in that, the quantity of described groove is at least one.
3. the depositing dust removed of structure demolition according to claim 2 and shock-dampening method, it is characterized in that, the section of described groove is trapezoidal.
4. the depositing dust removed of structure demolition according to claim 1 and shock-dampening method, is characterized in that, in described step (2), needing watering humidification on the described low bank of earth between fields.
5. the depositing dust removed of structure demolition according to claim 4 and shock-dampening method, it is characterized in that, the section of the described low bank of earth between fields is trapezoidal.
6. the depositing dust removed of structure demolition according to claim 1 and shock-dampening method, it is characterized in that, in described step (3), described channel bottom arranges water-proof explosive along groove axis at intervals.
7. the depositing dust that the structure demolition according to any one of Claims 1-4 is removed and shock-dampening method, is characterized in that, at a distance of 15m between described groove and the described building needing explosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227197.7A CN104819671B (en) | 2015-05-06 | 2015-05-06 | The depositing dust of a kind of structure demolition dismounting and shock-dampening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227197.7A CN104819671B (en) | 2015-05-06 | 2015-05-06 | The depositing dust of a kind of structure demolition dismounting and shock-dampening method |
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| Publication Number | Publication Date |
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| CN104819671A true CN104819671A (en) | 2015-08-05 |
| CN104819671B CN104819671B (en) | 2016-12-07 |
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| CN201510227197.7A Active CN104819671B (en) | 2015-05-06 | 2015-05-06 | The depositing dust of a kind of structure demolition dismounting and shock-dampening method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108038272A (en) * | 2017-11-23 | 2018-05-15 | 同济大学 | A kind of large-scale structures of decrease, which collapse, causes the method for ground vibration |
| CN111305098A (en) * | 2020-02-24 | 2020-06-19 | 同济大学 | Vibration isolation landscape barrier for continuous undulating terrain |
| CN113323665A (en) * | 2021-06-29 | 2021-08-31 | 新疆天池能源有限责任公司 | Stability control method for opencast coal mine to boundary soft rock end slope |
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| CN101125335A (en) * | 2007-06-28 | 2008-02-20 | 郑炳旭 | Building blasting integrated dust-removing method |
| KR100927055B1 (en) * | 2009-06-11 | 2009-11-17 | 주식회사 코리아카코 | The multipurpose special protection materials for dust and rubble control used in explosive demolition |
| JP2010096419A (en) * | 2008-10-16 | 2010-04-30 | Sb Kogyo Kk | Method of suppressing blasting dust in tunnel construction |
| CN103453809A (en) * | 2013-08-09 | 2013-12-18 | 中国人民武装警察部队水电三峡工程指挥部 | Water-mist dust settling method implemented during blast excavation for large-scale underground project |
| CN103925855A (en) * | 2014-04-18 | 2014-07-16 | 武汉爆破有限公司 | Blasting dust precipitation method |
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2015
- 2015-05-06 CN CN201510227197.7A patent/CN104819671B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101125335A (en) * | 2007-06-28 | 2008-02-20 | 郑炳旭 | Building blasting integrated dust-removing method |
| JP2010096419A (en) * | 2008-10-16 | 2010-04-30 | Sb Kogyo Kk | Method of suppressing blasting dust in tunnel construction |
| KR100927055B1 (en) * | 2009-06-11 | 2009-11-17 | 주식회사 코리아카코 | The multipurpose special protection materials for dust and rubble control used in explosive demolition |
| CN103453809A (en) * | 2013-08-09 | 2013-12-18 | 中国人民武装警察部队水电三峡工程指挥部 | Water-mist dust settling method implemented during blast excavation for large-scale underground project |
| CN103925855A (en) * | 2014-04-18 | 2014-07-16 | 武汉爆破有限公司 | Blasting dust precipitation method |
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| 李本伟 等: "《180m高钢筋混凝土烟囱爆破拆除》", 《爆破》 * |
| 陈德志 等: "《复杂环境下210m烟囱定向爆破拆除》", 《爆破》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108038272A (en) * | 2017-11-23 | 2018-05-15 | 同济大学 | A kind of large-scale structures of decrease, which collapse, causes the method for ground vibration |
| CN111305098A (en) * | 2020-02-24 | 2020-06-19 | 同济大学 | Vibration isolation landscape barrier for continuous undulating terrain |
| CN113323665A (en) * | 2021-06-29 | 2021-08-31 | 新疆天池能源有限责任公司 | Stability control method for opencast coal mine to boundary soft rock end slope |
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| Publication number | Publication date |
|---|---|
| CN104819671B (en) | 2016-12-07 |
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