CN110455139A - A kind of high risk zone cubic metre of earth and stone is let out can slot blasting construction method - Google Patents
A kind of high risk zone cubic metre of earth and stone is let out can slot blasting construction method Download PDFInfo
- Publication number
- CN110455139A CN110455139A CN201910788136.6A CN201910788136A CN110455139A CN 110455139 A CN110455139 A CN 110455139A CN 201910788136 A CN201910788136 A CN 201910788136A CN 110455139 A CN110455139 A CN 110455139A
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- CN
- China
- Prior art keywords
- earth
- relieve vent
- high risk
- shock relieve
- construction method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
Abstract
The invention discloses a kind of high risk zone cubic metres of earth and stone to let out energy slot blasting construction method, including a, laying let out energy channel: letting out energy channel to chisel one between quick-fried rock mass and reservation rock mass；B, lay shock relieve vent: the shock relieve vent that multiple rows of vertical runs are arranged between the excavating sideline and residential block of design forms isolation buffer band, and the depth of the shock relieve vent is greater than 3~5m of house foundation depth；C, blasting protection system is laid: straw mattress layer, rubber pad and steel wire are successively covered outside borehole aperture；D, prevent rock-fall protection system from laying: erecting scaffold is as protective frame between isolation buffer band and residential block, protective frame is towards to hang flexible steel wire netting in quick-fried rock mass one side, the invention avoids engineering removals, preferably control project cost, it accelerates engineering fltting speed, solve high slope close to problems such as residential block earthwork evacuations, while ensuring the security of the lives and property of resident.
Description
Technical field
The present invention relates to soilstone ratio fields, and letting out more particularly to a kind of high risk zone cubic metre of earth and stone can slot blast working side
Method.
Background technique
When carrying out Excavation blasting to mountain area building slope, due to apart from residential house relatively close, resident close to slope payment to a porter,
And resident remove it is difficult or by capital effect can not large area remove situations such as, cause construction innerland narrow, form high-risk area
Domain soilstone ratio, it is such as improper using Excavation blasting mode, resident's security of the lives and property at slope foot can be caused immeasurable
Disaster.The explosion of residential block high risk zone is that a more scabrous problem and owner's complaint are more, safe hidden in construction project
Suffer from one of significant problem.It for the design of this long-standing problem, builds, the problem of construction party, existing a variety of methods can not all solve
Certainly.
Summary of the invention
The present invention solves the deficiencies in the prior art and provides when one kind avoids blast working to ground effect on building, protects
The high risk zone of the card residential house and resident's safety cubic metre of earth and stone is let out can slot blasting construction method.
In order to solve the above-mentioned technical problem,
A kind of high risk zone cubic metre of earth and stone let out can slot blasting construction method, specifically comprise the following steps:
A, it lays and lets out energy channel: can channel being let out to chisel one between quick-fried rock mass and reservation rock mass；Energy channel is let out to loosen
When explosion formed let out the face that can soar aloft, make explosion stone fall in safely dig out let out energy channel in, it is ensured that in residential block and residential block
The safety of personnel.
B, lay shock relieve vent: the shock relieve vent that multiple rows of vertical runs are arranged between the excavating sideline and residential block of design is formed
The depth of isolation buffer band, the shock relieve vent is greater than 3~5m of house foundation depth；When the shock wave of explosion reaches isolation buffer band
When, shock relieve vent can absorb the energy for consuming and largely shaking, and the vibration for being subject to the subsequent floor area of isolation buffer band is big
It is big to reduce, thus largely weaken or block caused by the house foundation transfer spreading of blasting vibration wave direction residential block house crack or
Damage guarantees residential house and the safety of resident to ground effect on building when avoiding blast working.Double shock relieve vent damping is set
Effect can be improved 15%~30%, and the setting more damping effects of number of rows are more obvious.Shock relieve vent Construction Attention matters: shock relieve vent is in depth
It is had on degree deeply to 3~5m of house foundation；Shock relieve vent cannot block, and sundries will be cleared up in time in hole；Between the hole of shock relieve vent
Away from can suitably reduce pitch of holes to reach more preferable damping effect.
C, blasting protection system is laid: straw mattress layer, rubber pad and steel wire are successively covered outside borehole aperture；
D, prevent rock-fall protection system from laying:
Erecting scaffold is as protective frame between isolation buffer band and residential block, and protective frame is towards in quick-fried rock mass one side
Hang flexible steel wire netting.Flexible steel wire netting ensures to stay falling rocks in the blast working of side to guarantee common people's person less than up to residential block
And property safety.
Further, in step a, the energy channel width of letting out is 4m, depth 3m.
Further, in step b, multiple rows of shock relieve vent uses quincunx laying.
Further, in step b, the damping bore dia is 90mm, and adjacent shock relieve vent 200mm, shock relieve vent row is with row's
Between spacing 200mm, 6~10m of damping hole depth.
Further, in step c, rubber pad is connected and composed by muti-piece rubber pad by iron wire or steel wire.
Further, in step c, the steel wire is to be made of wire loop horizontal connection laying.
Further, in step d, the height of the protective frame is greater than the height of steel wire, the high 6m of steel wire.
In conclusion the present invention is arranged in earthwork evacuation lets out energy channel and shock relieve vent, to avoid explosion cubic metre of earth and stone mistake
Energy transmission jeopardizes slope foot resident's residential house to slope foot in journey；Simultaneously because blasting energy is cut down, avoid in blasting process
Slungshot, the vibration that shock wave shock relieve vent has blocked most of blasting process to generate avoids the destruction to existing building.Very
It solves high risk zone well and closes on existing resident room soilstone ratio problem, therefore the present invention can effectively solve mountain area apart from the people
Room compared with close, resident close to slope payment to a porter, remove it is difficult or by capital effect can not large area can not move, innerland of constructing it is narrow
The construction method of small high risk zone soilstone ratio, the present invention adapt to all high risk zone soilstone ratio engineerings.
Detailed description of the invention
Fig. 1 is perspective view of the present invention to quick-fried rock mass；
Fig. 2 is main view of the present invention to quick-fried rock mass；
Fig. 3 is rock-fall protection system artwork of the present invention.
Fig. 4 is shock relieve vent artwork of the present invention.
In attached drawing, 1, to quick-fried rock mass, 2, let out can channel, 3, retain rock mass, 4, last slope form, 5, shock relieve vent, 6, occupy
People area, 7, excavating sideline, 11, steel wire, 12, anchor pole, 13, straw mattress layer, 14, rubber pad.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figures 1 to 4, a kind of high risk zone cubic metre of earth and stone lets out energy slot blasting construction method, specifically comprises the following steps:
(1), the design and construction of energy slot type moat ditch is let out:
First within the scope of roadbed to quick-fried rock mass 1 and retain between rock mass 3 using machinery cut one let out can slot as letting out energy
Energy channel 2 width about 4m, depth about 3m are let out in channel 2, and that lets out the formation standing of energy channel 2 lets out the face that can soar aloft, and make explosion stone
Safety falls in letting out of digging out can be in channel 2, it is ensured that slope foot lower room and personal safety.It is to use that step is divided to open letting out energy channel 2
Slot, every fluting 5~10m length, to let out can the corresponding construction that standing is carried out to quick-fried rock mass 1 in channel 2, successively to being pushed forward
Into.
(2), 5 design and construction of shock wave shock relieve vent:
The work of shock relieve vent 5 is formed drilling out double or multiple rows of deep hole outside design excavating sideline 7, between residential block 6 and blast area
For the isolation buffer band that concussion of blasting is isolated, the hole depth of shock relieve vent is depending on length of shot, house foundation depth and structure, when quick-fried
When broken shock wave reaches isolation buffer band, it will be absorbed by shock relieve vent and consume the energy largely shaken, make isolation buffer
The vibration being subject to subsequent floor area greatly reduces, to largely weaken or block the transmitting of blasting vibration wave direction house foundation
House crack or damage caused by diffusion guarantee residential house and resident to ground effect on building when avoiding blast working
Safety.Shock relieve vent is set and the damping effect for generating maximum vibration velocity of wave to explosion without setting shock relieve vent is obvious, is arranged double
Multiple rows of shock relieve vent damping effect is arranged more preferably up to 15%~30% in shock relieve vent damping effect.
Shock relieve vent Construction Attention matters: 1. shock relieve vent hole depth is depending on must be according to length of shot, house foundation depth and structure
Depending on；2. shock relieve vent is had to deeply in depth to 3~5m of house foundation；Preferably reduce vibration wave 3. such as reaching, can set
It sets multiple rows of shock relieve vent or increases shock relieve vent design, better effect；4. shock relieve vent cannot block, sundries will be cleared up in time in hole；⑤
When using multiple rows of shock relieve vent, quincuncial arrangement can be used；6. pitch of holes is to reach more preferable damping effect can suitably reduce pitch of holes,
Shock relieve vent design parameter such as following table in this example.
| Aperture mm | Spacing mm | Array pitch mm | Hole depth m | Arrangement form |
| 90 | 200 | 200 | 6~10 | "-" type |
Shock relieve vent design parameter reference table
(3), explosion interface active defense system:
It splashing, blasting body should be covered at fragmentary stone meaning when to prevent standing.Covering design are as follows: first in hole
One layer of straw mattress layer 13 is covered on mouth, then covers rubber pad 14, steel wire 11 on straw mattress layer 13, and steel wire 11 is locked using anchor pole 12
It is scheduled on scar.
(4), slope foot prevents rock-fall protection system:
To ensure to stay falling rocks in the blast working of side to cause to seriously affect to common people's personal and property safety less than up to residential house,
Double-row steel pipe protective frame is arranged in inside between shock relieve vent and residential block, hangs flexible steel wire netting in protective frame,
(5), explosion body construction:
Rock is only presented rupture and loosens state after standing, and blast working should meet the existing construction of country and safety
Specification.It the steps include: rock drilling-powder charge-detonation-warning.It releases warning and pays special attention to thing: after detonation, explosion after five minutes should be crossed
After operator is allowed for access quick-fried area's inspection explosion situation confirmation safe initiation without dangerous situation, blows the long whistle and release warning clearance.
Blasting body construction parameter design reference table
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of high risk zone cubic metre of earth and stone lets out energy slot blasting construction method, it is characterised in that: specifically comprise the following steps:
A, it lays and lets out energy channel: can channel being let out to chisel one between quick-fried rock mass and reservation rock mass；
B, shock relieve vent is laid:
The shock relieve vent that multiple rows of vertical runs are arranged between the excavating sideline and residential block of design forms isolation buffer band, described to subtract
The depth for shaking hole is greater than 3~5m of house foundation depth；
C, blasting protection system is laid: straw mattress layer, rubber pad and steel wire are successively covered outside borehole aperture；
D, prevent rock-fall protection system from laying:
Erecting scaffold is as protective frame between isolation buffer band and residential block, and protective frame in quick-fried rock mass one side towards to hang
Flexible steel wire netting.
2. the high risk zone cubic metre of earth and stone according to claim 1 lets out energy slot blasting construction method, it is characterised in that: in step a,
The energy channel width of letting out is 4m, depth 3m.
3. the high risk zone cubic metre of earth and stone according to claim 1 lets out energy slot blasting construction method, it is characterised in that: in step b,
Multiple rows of shock relieve vent uses quincunx laying.
4. the high risk zone cubic metre of earth and stone according to claim 1 lets out energy slot blasting construction method, it is characterised in that: in step b,
The damping bore dia be 90mm, adjacent shock relieve vent 200mm, shock relieve vent spacing between rows and rows 200mm, damping hole depth 6~
10m。
5. the high risk zone cubic metre of earth and stone according to claim 1 lets out energy slot blasting construction method, it is characterised in that: in step c,
Rubber pad is connected and composed by muti-piece rubber pad by iron wire or steel wire.
6. the high risk zone cubic metre of earth and stone according to claim 1 lets out energy slot blasting construction method, it is characterised in that: in step c,
The steel wire is to be made of wire loop horizontal connection laying.
7. the high risk zone cubic metre of earth and stone according to claim 1 lets out energy slot blasting construction method, it is characterised in that: step
In d, the height of the protective frame is greater than the height of steel wire, the high 6m of steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788136.6A CN110455139A (en) | 2019-08-26 | 2019-08-26 | A kind of high risk zone cubic metre of earth and stone is let out can slot blasting construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788136.6A CN110455139A (en) | 2019-08-26 | 2019-08-26 | A kind of high risk zone cubic metre of earth and stone is let out can slot blasting construction method |
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| CN110455139A true CN110455139A (en) | 2019-11-15 |
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| CN201910788136.6A Pending CN110455139A (en) | 2019-08-26 | 2019-08-26 | A kind of high risk zone cubic metre of earth and stone is let out can slot blasting construction method |
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| CN203594035U (en) * | 2013-11-30 | 2014-05-14 | 中铁二十局集团有限公司 | Multilevel combined protection structure for shallow hole blasting excavation bridge foundation pit construction |
| CN105241320A (en) * | 2015-08-14 | 2016-01-13 | 中铁港航局集团有限公司 | Controlled blasting and protecting method for major bridge foundation on two sides of high and steep gorge in scenic spot |
| CN105865276A (en) * | 2016-03-30 | 2016-08-17 | 中铁二院重庆勘察设计研究院有限责任公司 | Efficient shock absorption blasting and excavation method adopting fishbone-shaped construction guide grooves for large rock deep foundation pit in dense building area |
| CN205642188U (en) * | 2016-05-30 | 2016-10-12 | 中交一公局第五工程有限公司 | Expand moat excavation rock blasting protector |
| CN207456312U (en) * | 2017-11-13 | 2018-06-05 | 陈彦春 | A kind of rock mass engineering project explosion safety device |
| CN208269760U (en) * | 2018-04-25 | 2018-12-21 | 扬州大学 | A kind of slope blasting Rolling Stone deceleration blocking protective device |
| CN109373193A (en) * | 2018-11-22 | 2019-02-22 | 杭州江润科技有限公司 | Tunnel blasting excavation system and construction method |
| CN208936891U (en) * | 2018-07-25 | 2019-06-04 | 中国非金属材料南京矿山工程有限公司 | Close on high-voltage line mining blasting safeguard structure |
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2019
- 2019-08-26 CN CN201910788136.6A patent/CN110455139A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203594035U (en) * | 2013-11-30 | 2014-05-14 | 中铁二十局集团有限公司 | Multilevel combined protection structure for shallow hole blasting excavation bridge foundation pit construction |
| CN103629980A (en) * | 2013-12-16 | 2014-03-12 | 中铁二十三局集团第四工程有限公司 | Adjacent existing railway steep mountain loosen control blast construction method |
| CN105241320A (en) * | 2015-08-14 | 2016-01-13 | 中铁港航局集团有限公司 | Controlled blasting and protecting method for major bridge foundation on two sides of high and steep gorge in scenic spot |
| CN105865276A (en) * | 2016-03-30 | 2016-08-17 | 中铁二院重庆勘察设计研究院有限责任公司 | Efficient shock absorption blasting and excavation method adopting fishbone-shaped construction guide grooves for large rock deep foundation pit in dense building area |
| CN205642188U (en) * | 2016-05-30 | 2016-10-12 | 中交一公局第五工程有限公司 | Expand moat excavation rock blasting protector |
| CN207456312U (en) * | 2017-11-13 | 2018-06-05 | 陈彦春 | A kind of rock mass engineering project explosion safety device |
| CN208269760U (en) * | 2018-04-25 | 2018-12-21 | 扬州大学 | A kind of slope blasting Rolling Stone deceleration blocking protective device |
| CN208936891U (en) * | 2018-07-25 | 2019-06-04 | 中国非金属材料南京矿山工程有限公司 | Close on high-voltage line mining blasting safeguard structure |
| CN109373193A (en) * | 2018-11-22 | 2019-02-22 | 杭州江润科技有限公司 | Tunnel blasting excavation system and construction method |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191115 |