CN105674825A - Construction method for additionally forming perimeter auxiliary holes in peripheries of perimeter holes of vertical shaft - Google Patents
Construction method for additionally forming perimeter auxiliary holes in peripheries of perimeter holes of vertical shaft Download PDFInfo
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- CN105674825A CN105674825A CN201610103662.0A CN201610103662A CN105674825A CN 105674825 A CN105674825 A CN 105674825A CN 201610103662 A CN201610103662 A CN 201610103662A CN 105674825 A CN105674825 A CN 105674825A
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- periphery
- perimeter
- holes
- reliever
- hole
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- 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
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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
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- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
Provided is a construction method for additionally forming perimeter auxiliary holes in peripheries of perimeter holes of a vertical shaft. The construction method for additionally forming the perimeter auxiliary holes in the peripheries of the perimeter holes of the vertical shaft comprises the following steps that 1, the perimeter auxiliary holes are drilled after the perimeter holes are drilled through an umbrella driller, and the depth of the holes is 1500 mm; 2, the perimeter auxiliary holes and the perimeter holes are charged with powder at the same time, and the segment numbers of detonators of the perimeter holes and the perimeter auxiliary holes are 7 and 9 correspondingly; and 3, the perimeter auxiliary holes detonate after the perimeter holes detonate. The perimeter auxiliary holes are drilled through six YT-28 air drillers after the perimeter holes are drilled through the umbrella driller, and the drilling time is not prolonged. The problem that a shaft wall is excavated excessively or insufficiently is solved effectively, the phenomenon of insufficient detonation after the perimeter holes detonate is avoided, and the gangue drainage, net hanging and anchor spraying time is shortened. The expenses of wind, water, electricity, labor, concrete spraying and other materials are saved. The quality of preliminary bracing is improved, and the construction safety of large section height is ensured. The detonation efficiency is improved, the construction progress is accelerated, and the good technical and economic effects are obtained.
Description
Technical field
The present invention relates to a kind of construction technology being effectively improved shaft excavation subdivisional work quality, specifically, be the construction method of the photoface exploision of tunneling boring setting up periphery reliever outside shaft perimeter eye.
Background technology
In deep shaft comprehensive mechanization matching operation, excavation adopts umbrella drilling, medium-length hole blasting, and each deep shaft is only joined 1 umbrella involved great expense and bored. But deep shaft complex geologic conditions, in weakness location, rock stratum, concrete lining to thicken, and even designs armored concrete, directly results in the waste footpath of excavation and becomes big, the support that umbrella bores is limited in scope, easily cause well side backbreak and owe to dig, owe to dig place will perforating explosion again, waste material, man-hour, the place of backbreaking to have more ballast, fill out concrete etc. more, and construction cost significantly increases.
Summary of the invention
The purpose of the present invention is that and overcomes umbrella in existing To Construction of Silo excavation to bore the deficiency that support scope is little, it is proposed to a kind of effective solution is backbreak and owes the construction method dug, and the method technique is simple, easy and simple to handle, economical and efficient.
The technical scheme is that the construction method of a kind of photoface exploision of tunneling boring setting up periphery reliever outside shaft perimeter eye. It is characterized in that: carry out according to the following step:
1., after umbrella bores and beaten periphery hole, YT-28 type breast drill is used to make periphery reliever.
2. periphery reliever carries out powder charge with periphery hole according to the drill-and-blast method of design.
3. periphery reliever after periphery hole one section detonate.
Above-mentioned periphery reliever adopts 6 YT-28 type air drill perforatings, the deep 1500mm of eye, periphery hole and periphery reliever location radii, hole depth to want accurately, and staggering mutually in eye position, eye spacing is uniform. Periphery hole inclination angle is basically identical, and periphery reliever is wanted vertically.
After above-mentioned periphery reliever has been constructed, carry out powder charge according to the drill-and-blast method of design simultaneously, periphery hole and the equal powder charge of periphery reliever are to optical fundus, eye mouth all uses water stemming material sealing 300～600mm, periphery hole and periphery reliever use two sections of detonators, detonate after the latter, supplementing and deburring as the former.
Present invention have the advantage that and economical and technical benefit:
1. umbrella utilizes air drill to make periphery reliever after boring and having beaten periphery hole, and construction interference is little, and drilling time does not extend.
2. effectively reduce and backbreak, and control and owe to dig, it is to avoid periphery hole explosion upper back " staying cap " is mended quick-fried, bottom wall rock loosening ring and increased phenomenon, it is ensured that the big high construction safety of section, improves blasting efficiency, shortens out spoil and lining cutting time.
3. shorten linked network and shotcrete time, improve the quality of preliminary bracing, it is ensured that flatness, saved wind, water, electricity, artificial and other materials expense, construction cost can be greatly reduced, good in economic efficiency.
4. accelerate construction speed, achieve good techno-economic effect.
Accompanying drawing explanation
Fig. 1 is cold spring ore deposit auxiliary shaft rock section driving borehole site plan.
Fig. 2 is that cold spring ore deposit auxiliary shaft rock section driving borehole is longitudinally arranged figure.
In figure: 1 snubber; 2 the 1st circle relievers; 3 the 2nd circle relievers; 4 periphery holes; 5 secondary peripheral eyes; 6 wellbore centre line, i.e. umbrella drilling rig centrages
Detailed description of the invention
As shown in Figure 1-2, a kind of construction method setting up periphery reliever outside shaft perimeter eye, specific implementation process is as follows: 1. umbrella makes periphery reliever with 6 hand-held YT-28 type air drills after boring and having beaten periphery hole, the deep 1500mm of eye, it is desirable to its location radii is accurate, staggers mutually in eye position, eye spacing is uniform, periphery hole inclination angle is basically identical, and periphery reliever is wanted vertically, to see accompanying drawing. 2. the powder charge simultaneously of hole blasting design parameter pressed by periphery hole and periphery reliever, and equal powder charge is to optical fundus, and eye mouth all uses water stemming material sealing 300～600mm, uses two sections of detonators, detonates after periphery reliever, supplementing and deburring as periphery hole.
A kind of construction method setting up periphery reliever in shaft perimeter eye periphery, carries out according to the following step: 1. umbrella makes periphery reliever after boring and having beaten periphery hole. 2. periphery reliever and periphery hole powder charge simultaneously. 3. periphery reliever detonates after periphery hole.
Umbrella brill utilizes 6 YT-28 type air drills to beat periphery reliever, periphery hole and periphery reliever location radii, hole depth and wants accurately after having beaten periphery hole, staggering mutually in eye position, eye spacing is wanted uniformly. Periphery hole inclination angle is basically identical, and periphery reliever is wanted vertically.
Periphery reliever and periphery hole powder charge simultaneously, it is necessary to by the quick-fried eye design explosive payload of light, equal powder charge is to optical fundus, and eye mouth all uses water stemming material sealing 300～600mm.
Periphery hole and periphery reliever use two sections of detonators, detonate after periphery reliever, supplementing and deburring as periphery hole, it is ensured that after explosion, waste wall shapes regular, are conducive to bar-mat reinforcement construction and ensure the flatness of gunite concrete.
The auxiliary shaft rock section drill-and-blast method design of table 1 cold spring ore deposit
Table 2 cold spring ore deposit auxiliary shaft rock section bores quick-fried initial condition and demolition effect
Claims (4)
1. the construction method setting up periphery reliever in shaft perimeter eye periphery, it is characterised in that: the method carries out according to the following step: 1. umbrella makes periphery reliever after boring and having beaten periphery hole; 2. periphery reliever and periphery hole powder charge simultaneously; 3. periphery reliever detonates after periphery hole.
2. a kind of construction method setting up periphery reliever in shaft perimeter eye periphery according to claim 1, it is characterized in that: umbrella bores after having beaten periphery hole and utilizes 6 YT-28 type air drills to make periphery reliever, periphery hole and periphery reliever location radii, hole depth are wanted accurately, staggering mutually in eye position, eye spacing is wanted uniformly;Periphery hole inclination angle is basically identical, and periphery reliever is wanted vertically.
3. a kind of construction method setting up periphery reliever in shaft perimeter eye periphery according to claim 1, it is characterized in that: periphery reliever and periphery hole powder charge simultaneously, must by the quick-fried eye design explosive payload of light, equal powder charge is to optical fundus, and eye mouth all uses water stemming material sealing 300～600mm.
4. a kind of construction method setting up periphery reliever in shaft perimeter eye periphery according to claim 1, it is characterized in that: periphery hole and periphery reliever use two sections of detonators, detonate after periphery reliever, supplementing and deburring as periphery hole, after guaranteeing explosion, waste wall shapes regular, is conducive to bar-mat reinforcement construction and ensures the flatness of gunite concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103662.0A CN105674825A (en) | 2016-02-25 | 2016-02-25 | Construction method for additionally forming perimeter auxiliary holes in peripheries of perimeter holes of vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103662.0A CN105674825A (en) | 2016-02-25 | 2016-02-25 | Construction method for additionally forming perimeter auxiliary holes in peripheries of perimeter holes of vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105674825A true CN105674825A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610103662.0A Pending CN105674825A (en) | 2016-02-25 | 2016-02-25 | Construction method for additionally forming perimeter auxiliary holes in peripheries of perimeter holes of vertical shaft |
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| CN (1) | CN105674825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640093A (en) * | 2017-01-11 | 2017-05-10 | 中铁四局集团第工程有限公司 | Tunnel excavating face blasting construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294274A (en) * | 1993-04-09 | 1994-10-21 | Kajima Corp | Method for excavating vertical shaft by preboring |
| RU2229602C2 (en) * | 2002-06-04 | 2004-05-27 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Method for driving vertical shaft |
| CN1560557A (en) * | 2004-03-10 | 2005-01-05 | 马芹永 | Technology method of artificial frozen soil control blasting by deep surface forzen method |
| CN101419041A (en) * | 2008-11-19 | 2009-04-29 | 中煤第一建设公司第四十九工程处 | Deep hole blasting process in frost weathering bedrock segment |
| CN102401616A (en) * | 2011-10-11 | 2012-04-04 | 中国矿业大学(北京) | Blasting excavation method of vertical shaft |
| CN104613831A (en) * | 2015-01-19 | 2015-05-13 | 中铁十八局集团有限公司 | Construction method for additionally forming periphery auxiliary holes in periphery of vertical shaft periphery hole |
-
2016
- 2016-02-25 CN CN201610103662.0A patent/CN105674825A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294274A (en) * | 1993-04-09 | 1994-10-21 | Kajima Corp | Method for excavating vertical shaft by preboring |
| RU2229602C2 (en) * | 2002-06-04 | 2004-05-27 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Method for driving vertical shaft |
| CN1560557A (en) * | 2004-03-10 | 2005-01-05 | 马芹永 | Technology method of artificial frozen soil control blasting by deep surface forzen method |
| CN101419041A (en) * | 2008-11-19 | 2009-04-29 | 中煤第一建设公司第四十九工程处 | Deep hole blasting process in frost weathering bedrock segment |
| CN102401616A (en) * | 2011-10-11 | 2012-04-04 | 中国矿业大学(北京) | Blasting excavation method of vertical shaft |
| CN104613831A (en) * | 2015-01-19 | 2015-05-13 | 中铁十八局集团有限公司 | Construction method for additionally forming periphery auxiliary holes in periphery of vertical shaft periphery hole |
Non-Patent Citations (3)
| Title |
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| 张馨: "周边辅助眼工艺与光底爆破技术在立井施工中的应用", 《焦作工学院学报》 * |
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| 杨健等: "深立井开凿实用钻爆新技术研究和应用", 《河南理工大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640093A (en) * | 2017-01-11 | 2017-05-10 | 中铁四局集团第工程有限公司 | Tunnel excavating face blasting construction method |
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Application publication date: 20160615 |
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