CN105737700A - Pot bottom shaped deep hole smooth bottom smooth blasting construction method applicable to vertical shaft - Google Patents
Pot bottom shaped deep hole smooth bottom smooth blasting construction method applicable to vertical shaft Download PDFInfo
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- CN105737700A CN105737700A CN201610103986.4A CN201610103986A CN105737700A CN 105737700 A CN105737700 A CN 105737700A CN 201610103986 A CN201610103986 A CN 201610103986A CN 105737700 A CN105737700 A CN 105737700A
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- vertical shaft
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000005422 blasting Methods 0.000 title claims abstract description 8
- 239000011435 rock Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002360 explosive Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 238000007667 floating Methods 0.000 claims abstract description 4
- 238000004880 explosion Methods 0.000 claims description 20
- 239000000499 gel Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 6
- 238000002372 labelling Methods 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000004922 lacquer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 4
- 239000002893 slag Substances 0.000 abstract 3
- 238000005474 detonation Methods 0.000 abstract 2
- 238000010408 sweeping Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a pot bottom shaped deep hole smooth bottom smooth blasting construction method applicable to a vertical shaft. The construction method comprises the following steps: in the later stage of gangue discharging, that is, bottom clearing, the speed of collecting and discharging slag by a shovel and a rock grab is 4-5 times higher than the speed of collecting and discharging slag on flat base operation surfaces, and is 5-6 times higher than the speed of collecting and discharging slag on uneven working surfaces between which the elevation difference is more than 0.5 m; in water draining, gathering water by an air pick sump in the past is changed into automatically collecting water, and an air pump and a bucket can be directly used for draining water, so that the water draining efficiency is improved greatly, and the overflowing influence is reduced; and in hole drilling of an umbrella driller, no floating debris and broken stones are generated, the hole positioning is fast and accurate, rock powder can be blown out from the shot holes, jamming and wedging of a drilling tool are avoided, and the speed of drilling holes in a full section is higher than of the speed of drilling holes in flat bases or uneven working faces. In hole drilling, automatic water collection is achieved, the rock powder slurry flows into the lower pot bottom and is discharged in the bucket by the air pump, so that the hole sweeping difficulty is reduced, water-gel explosive can be placed at the bottoms of the shot holes smoothly, the phenomenon of interruption of propagation of detonation, which is caused by the fact that a rock powder slurry medium is isolated during the process of propagation of detonation of the explosive, is avoided, and the average utilization ratio of the shot holes can be increased to more than 96%.
Description
Technical field
The present invention relates to a kind of vertical shaft quick-fried construction technique of rock section light, particularly to one be applied to vertical shaft joint fissure relatively grow, the soft or hard special strata pockety section deep hole pot bottom-shape quick-fried construction technique of light bottom season.
Background technology
To Construction of Silo be frequently encountered by joint fissure relatively grow, soft or hard rock stratum pockety, after explosion, bottom is uneven, and hollow hole not of uniform size even occurs, causes great difficulty to the muck removal clear end；Especially with the deepening of the degree of depth, the infiltration of well side, water outlet run up to shaft bottom work surface, cause trouble to draining in jewel hole process, and in powder charge, broken quarrel entrance borehole causes explosive flame proof, miss-fires, and there is very big security risk during process.
Summary of the invention
The purpose of the present invention is that and overcomes in above-mentioned prior art deficiency joint fissure relatively grown, exists in development blasting construction under soft or hard special strata pockety, and provide one to be applied to the vertical shaft special strata section deep hole pot bottom-shape quick-fried construction technique of light bottom season, this new technique is easy at clear stage end collection quarrel and hydrops, quickening spade and grab greatly the clear end and the speed with air pump, baling, reduce unrestrained water impact, improving umbrella drilling speed and blast hole utilization factor, this construction technology is simple, safe, economic, practical.
The technical scheme is that one is applied to the vertical shaft special strata section deep hole pot bottom-shape quick-fried construction method of light bottom season, it is characterised in that: carry out according to the following step,
1. to there is work surface uneven, that the discrepancy in elevation reaches more than 0.5m, eminence perforating is deepened about 0.2m, eye spacing and eye number and depending on rock stratum hardness and is exceeded area 1～3 eye of increase, increases by 1 powder stick, create substantially smooth work surface through 1～2 big gun during powder charge.In order to implement, pot bottom type deep hole light bottom season is quick-fried to create conditions.
2. silo bottom is cleared up, tunnel pot bottom-shape blasting parameter design table at the bottom of borehole layout drawing, rock section brill light according to rock section, borehole is carried out red circle labelling.
3. on the both sides, wellbore centre hole being inserted with air pick drill, keep flat the 2 long 600mm of specification × high 250mm × wide 300mm lumps of wood, the lumps of wood straightens at the bottom of the boring that footpath is 400mm, high 450mm.Tissue FJD-6 type umbrella bores goes into the well, and the base (height 200mm) that umbrella bores is placed at the bottom of boring, exposed height 110mm.
4. FJD-6 type umbrella bores supporting YGZ-70 type Independent Rotary Rock Drill and makes a call to 3.0～4.5m deep hole according to borehole labelling, will in strict accordance with explosion design parameter table during perforating, outside from the well heart, the bottomed height of from coil to coil borehole gradually steps up, same circle borehole is intended to ensure that bottomed height is identical, creates conditions for forming the bright finish the bottom of a pan.
5. first shaft bottom muddy water it is discharged in well-bucket before powder charge or is discharged in the water tank on hanging scaffold, then with wind, borehole being swept totally, it is ensured that explosive installs to optical fundus and continuous charging.
6. powder charge carries out in strict accordance with explosion design parameter table, and snubber (1～7) adoptsAqueous gels, explosive payload 35kg, detonator segment number 1 section；1st circle reliever (8～17) adoptsAqueous gels, explosive payload 40kg, detonator segment number 3 sections；2nd circle reliever (18～34) adoptsAqueous gels, explosive payload 51kg, detonator segment number 5 sections；Periphery hole (35～72) adoptsAqueous gels, explosive payload 45.6kg, detonator segment number 7 sections；Periphery reliever (73～109) adoptsAqueous gels, explosive payload 22.2kg, detonator segment number 7 sections.On line mode adopts big parallel connection, and firing order is: snubber (1～7)-1 encloses reliever (8～17)-2 and encloses reliever (18～34)-periphery hole (35～72)-periphery reliever (73～109).Snubber adopts reverse continuous charging structure, reliever and periphery hole to adopt forward continuous charging structure.
7., after explosion completes, HZ-6 type center steering grab loader, master is adopted to carry 2JK-3.5/20 type elevator and join 3.0m3Well-bucket, pair carry JK-2.5/20 type elevator and join 2.0m3Well-bucket is cut clearly operation.
Present invention have the advantage that and good effect:
1. going out cash later stage and the clear stage end, be cut with spade and grab loader collection and the speed of muck removal improves 4～5 times than flat work surface, improve 5～6 times than uneven work surface speed more than discrepancy in elevation 0.5m.
2. when draining, original pneumatic pick prop up water nest polywater and change automatic water collecting, directly available air pump and baling into, substantially increase drainage efficiency, decrease the impact of unrestrained water.
3. being easily guaranteed that clear substrate amount, umbrella is drilled in not floating quarrel rubble during perforating, is surely sharp-eyed and accurately, rock dust can blow out in borehole, not bit freezing not stick of tool, and tunneling boring perforating speed improves 20%～40% than flat or uneven work surface.
4. automatic water collecting during perforating, rock dust slurry stream is to the bottom of a pan of lower, well-bucket is entered with air pump, alleviate and sweep a difficulty, aqueous gels are enable successfully to install to bottom borehole, avoiding explosive and produce, because rock dust starches the isolation of medium, the phenomenon that propagation of explosion interrupts in propagation of explosion process, borehole average utilization can bring up to more than 96%.
5. good economy performance, can be greatly reduced construction cost.
Accompanying drawing explanation
Fig. 1 is rock section driving borehole plane of arrangement figure.
Fig. 2 is that rock section driving borehole arranges vertical face figure.
In figure: 1, draw exoculation, the 2, first lap reliever, 3, second circle reliever, 4, periphery hole, 5, periphery reliever, 6, wellbore centre line.
Detailed description of the invention
As shown in Figure 1-2, one be applied to vertical shaft joint fissure relatively grow, the soft or hard special strata pockety section deep hole pot bottom-shape quick-fried construction method of light bottom season, carry out according to the following step: 1. first end foreign material cheated by cleaning vertical shaft, expose bed rock face, hole, to there is work surface uneven, that the discrepancy in elevation reaches more than 0.5m, about 0.2m is deepened in eminence perforating, eye spacing and eye number depending on rock stratum hardness and exceed area 1～3 eye of increase, increase by 1 powder stick during powder charge, create substantially smooth work surface through 1～2 big gun.In order to implement, pot bottom type deep hole light bottom season is quick-fried to create conditions.2. tunnel borehole layout drawing according to Fig. 2 rock section and be accurately positioned borehole position, with red lacquer painting circle.3. on the both sides, wellbore centre hole being inserted with air pick drill, keep flat the 2 long 600mm of specification × high 250mm × wide 300mm lumps of wood, the lumps of wood straightens at the bottom of the boring that footpath is 400mm, high 450mm.Tissue FJD-6 type umbrella bores goes into the well, and the base (height 200mm) that umbrella bores is placed at the bottom of boring, exposed height 110mm.4. bore in pot bottom-shape explosion design table at the bottom of light according to table 1 rock section, the technical parameters such as inclination angle, eye deep, eye distance, bottomed height, use FJD-6 type umbrella to bore supporting YGZ-70 type Independent Rotary Rock Drill and make a call to 3.0～4.5m deep hole according to borehole labelling, will in strict accordance with table 1 borehole blasting design parameter during perforating, outside from the well heart, the bottomed height of from coil to coil borehole gradually steps up, and same circle borehole is intended to ensure that bottomed height is identical, creates conditions for forming the bright finish the bottom of a pan.5. shaft bottom muddy water it is discharged in well-bucket or is discharged in the water tank on hanging scaffold, then with wind, borehole being swept totally, it is ensured that explosive installs to optical fundus and continuous charging.6. according to Fig. 1, big gun hole is numbered.Bore in pot bottom-shape explosion design table at the bottom of light according to table 1 rock section, use diameter of phi 45mm/ Φ 35mm rock aqueous gels, corresponding big gun hole loads design explosive payload, load corresponding detonator, snubber powder charge adopts reverse continuous charging structure, reliever and periphery hole powder charge to adopt forward continuous charging structure.Bore firing order, on line mode in pot bottom-shape explosion design table at the bottom of light according to table 1 rock section and blasting network is set.7., after explosion completes, HZ-6 type center steering grab loader, master is adopted to carry 2JK-3.5/20 type elevator and join 3.0m3Well-bucket, pair carry JK-2.5/20 type elevator and join 2.0m3Well-bucket is cut clearly operation.
Going out cash later stage and the clear stage end, be cut with spade and grab loader collection and the speed of muck removal improves 4～5 times than flat work surface, improve 5～6 times than uneven work surface speed more than discrepancy in elevation 0.5m.
When draining, original pneumatic pick prop up water nest polywater and change automatic water collecting, directly available air pump and baling into, substantially increase drainage efficiency, decrease the impact of unrestrained water.
This method easily ensures clear substrate amount, and umbrella is drilled in not floating quarrel rubble during perforating, is surely sharp-eyed and accurately, rock dust can blow out in borehole, not bit freezing not stick of tool, and tunneling boring perforating speed improves 20%～40% than flat or uneven work surface.
Automatic water collecting during perforating, rock dust slurry stream is to the bottom of a pan of lower, well-bucket is entered with air pump, alleviate and sweep a difficulty, aqueous gels are enable successfully to install to bottom borehole, avoiding explosive and produce, because rock dust starches the isolation of medium, the phenomenon that propagation of explosion interrupts in propagation of explosion process, borehole average utilization can bring up to more than 96%.
Pot bottom-shape Smooth Blasting Prameter Design at the bottom of certain vertical shaft rock section light of table 1
Certain vertical shaft rock section of table 2 bores quick-fried initial condition and demolition effect
| Sequence number | Title | Unit | Quantity | Sequence number | Title | Unit | Quantity |
| 1 | Excavated section | ㎡ | 39.6 | 8 | Explosive payload | kg | 193.8 |
| 2 | Rock property | f | 4～8 | 9 | Blast hole utilization factor | % | 90 |
| 3 | Water yield | m3/h | 4.8 | 10 | Every cyclic advance | m | 2.7 |
| 4 | Borehole depth | m | 3.0 | 11 | Often circulation explosion reality rock | m3 | 107 |
| 5 | Borehole number | Individual | 109 | 12 | Unit powder consumption | kg/m3 | 1.81 |
| 6 | Aqueous gels | Φ45、Φ35 | 13 | Every meter of amount of consumption of drugs | kg/m | 71.7 | |
| 7 | Electric cap | Millisecond is delayed | 14 | Often circulation borehole is long | m | 274.5 |
Claims (5)
1. one kind is applied to the vertical shaft deep hole pot bottom type quick-fried construction method of light bottom season, it is characterized in that: the method is that one is applied to vertical shaft joint fissure and relatively grows, the soft or hard special strata pockety section deep hole pot bottom-shape quick-fried construction method of light bottom season, carry out according to the following step: 1. first end foreign material cheated by cleaning vertical shaft, expose bed rock face, hole, uneven to existing, the discrepancy in elevation reaches the work surface of more than 0.5m, about 0.2m is deepened in eminence perforating, eye spacing and eye number depending on rock stratum hardness and exceed area 1～3 eye of increase, 1 powder stick is increased during powder charge, substantially smooth work surface is createed through 1～2 big gun；In order to implement, pot bottom type deep hole light bottom season is quick-fried to create conditions；2. tunnel borehole layout drawing according to rock section and be accurately positioned borehole position, with red lacquer painting circle；3. on the both sides, wellbore centre hole being inserted with air pick drill, keep flat the 2 long 600mm of specification × high 250mm × wide 300mm lumps of wood, the lumps of wood straightens at the bottom of the boring that footpath is 400mm, high 450mm；Tissue FJD-6 type umbrella bores goes into the well, and the base (height 200mm) that umbrella bores is placed at the bottom of boring, exposed height 110mm；4. bore in pot bottom-shape explosion design at the bottom of light according to rock section, inclination angle, eye are deep, eye distance, bottomed height technical parameter, use FJD-6 type umbrella to bore supporting YGZ-70 type Independent Rotary Rock Drill and make a call to 3.0～4.5m deep hole according to borehole labelling, will in strict accordance with explosion design parameter during perforating, outside from the well heart, the bottomed height of from coil to coil borehole gradually steps up, and same circle borehole is intended to ensure that bottomed height is identical, creates conditions for forming the bright finish the bottom of a pan；5. shaft bottom muddy water it is discharged in well-bucket or is discharged in the water tank on hanging scaffold, then with wind, borehole being swept totally, it is ensured that explosive installs to optical fundus and continuous charging；6. it is numbered according to big gun hole；Bore in pot bottom-shape explosion design at the bottom of light according to rock section, use diameter of phi 45mm/ Φ 35mm rock aqueous gels, corresponding big gun hole loads design explosive payload, loads corresponding detonator, snubber powder charge adopts reverse continuous charging structure, reliever and periphery hole powder charge to adopt forward continuous charging structure；Bore firing order, on line mode in pot bottom-shape explosion design at the bottom of light according to rock section and blasting network is set；7., after explosion completes, HZ-6 type center steering grab loader, master is adopted to carry 2JK-3.5/20 type elevator and join 3.0m3Well-bucket, pair carry JK-2.5/20 type elevator and join 2.0m3Well-bucket is cut clearly operation.
2. one according to claim 1 is applied to the vertical shaft deep hole pot bottom type quick-fried construction method of light bottom season, it is characterized in that: going out cash later stage and the clear stage end, it is cut with spade and grab loader collection and the speed of muck removal improves 4～5 times than flat work surface, improve 5～6 times than uneven work surface speed more than discrepancy in elevation 0.5m.
3. one according to claim 1 is applied to the vertical shaft deep hole pot bottom type quick-fried construction method of light bottom season, it is characterized in that: when draining, original pneumatic pick prop up water nest polywater and change automatic water collecting, directly available air pump and baling into, substantially increase drainage efficiency, decrease the impact of unrestrained water.
4. one according to claim 1 is applied to the vertical shaft deep hole pot bottom type quick-fried construction method of light bottom season, it is characterized in that: this method easily ensures clear substrate amount, umbrella is drilled in not floating quarrel rubble during perforating, surely it is sharp-eyed and accurately, rock dust can blow out in borehole, not bit freezing not stick of tool, tunneling boring perforating speed improves 20%～40% than flat or uneven work surface.
5. one according to claim 1 is applied to the vertical shaft deep hole pot bottom type quick-fried construction method of light bottom season, it is characterized in that: automatic water collecting during perforating, rock dust slurry stream is to the bottom of a pan of lower, well-bucket is entered with air pump, alleviate and sweep a difficulty, the aqueous gels are enable successfully to install to bottom borehole, it is to avoid explosive produces, because rock dust starches the isolation of medium, the phenomenon that propagation of explosion interrupts in propagation of explosion process, and borehole average utilization can bring up to more than 96%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103986.4A CN105737700A (en) | 2016-02-25 | 2016-02-25 | Pot bottom shaped deep hole smooth bottom smooth blasting construction method applicable to vertical shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103986.4A CN105737700A (en) | 2016-02-25 | 2016-02-25 | Pot bottom shaped deep hole smooth bottom smooth blasting construction method applicable to vertical shaft |
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| CN105737700A true CN105737700A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610103986.4A Pending CN105737700A (en) | 2016-02-25 | 2016-02-25 | Pot bottom shaped deep hole smooth bottom smooth blasting construction method applicable to vertical shaft |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813540A (en) * | 2017-01-18 | 2017-06-09 | 淮南矿业(集团)有限责任公司 | The method of Shaft Freezing rock section deep hole blasting under ultra low temperature state |
| CN111336881A (en) * | 2020-03-06 | 2020-06-26 | 中国矿业大学(北京) | Thin coal seam half-coal rock roadway medium-length hole smooth blasting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832744A (en) * | 2010-05-25 | 2010-09-15 | 江南水利水电工程公司 | Blasting demolishing method |
| KR20130089061A (en) * | 2012-02-01 | 2013-08-09 | 주식회사 한화 | Method for blasting core center-cut |
| 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 CN201610103986.4A patent/CN105737700A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832744A (en) * | 2010-05-25 | 2010-09-15 | 江南水利水电工程公司 | Blasting demolishing method |
| KR20130089061A (en) * | 2012-02-01 | 2013-08-09 | 주식회사 한화 | Method for blasting core center-cut |
| 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 (2)
| Title |
|---|
| 张馨: "竖井施工钻眼***新技术研究和应用", 《石家庄铁路职业技术学院学报》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813540A (en) * | 2017-01-18 | 2017-06-09 | 淮南矿业(集团)有限责任公司 | The method of Shaft Freezing rock section deep hole blasting under ultra low temperature state |
| CN111336881A (en) * | 2020-03-06 | 2020-06-26 | 中国矿业大学(北京) | Thin coal seam half-coal rock roadway medium-length hole smooth blasting method |
| CN111336881B (en) * | 2020-03-06 | 2021-05-04 | 中国矿业大学(北京) | Thin coal seam half-coal rock roadway medium-length hole smooth blasting method |
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Application publication date: 20160706 |
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