CN111692935A - Blasting construction method of blasting equipment - Google Patents
Blasting construction method of blasting equipment Download PDFInfo
- Publication number
- CN111692935A CN111692935A CN202010558483.2A CN202010558483A CN111692935A CN 111692935 A CN111692935 A CN 111692935A CN 202010558483 A CN202010558483 A CN 202010558483A CN 111692935 A CN111692935 A CN 111692935A
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- Prior art keywords
- blasting
- pipe
- holes
- hole
- rapid
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- 238000005422 blasting Methods 0.000 title claims abstract description 74
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000005474 detonation Methods 0.000 claims abstract description 15
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 16
- 238000005336 cracking Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a blasting construction method of blasting equipment, which comprises the steps of firstly arranging a hole network, arranging a first row of holes in the direction of a free face, wherein the hole diameter is larger than 90mm, the hole pitch is 500-1000 mm, the row pitch of a second row of holes and the first row of holes is 500-1000 mm, and the like, and blowing and cleaning blast holes after hole forming; then, sequentially placing blasting materials into the holes, using a separator to plug the blast holes, sealing the blasting materials inside the blast holes, and plugging the outside of the separator through quick setting mortar; after the mortar is solidified, inflating and pressurizing the blasting equipment by using an air compressor and an inflation pipeline, wherein the pressure value reaches the detonation pressure; and finally, after the detonation circuit is connected and no fault is confirmed, igniting and detonating. The method provided by the invention has the advantages of convenient blasting implementation process and strong blasting controllability, can reduce blasting vibration, can play a good role in protecting the construction surrounding environment, and simultaneously ensures the blasting effect.
Description
Technical Field
The invention relates to the technical field of blasting construction, in particular to a blasting construction method of blasting equipment.
Background
With the progress of science and technology and the development of market economy, the engineering operation implemented by adopting blasting technology is more and more extensive. Besides the application in the aspects of traditional mining, building demolition, tunnel driving and the like, engineering practices are also obtained in some new places, such as quarry quarrying, steel plant dredging and blockage removal, special site blasting, municipal engineering, tunnel blasting, underwater blasting and the like. The core content of the traditional blasting vibration weakening construction technology at present is that single-hole loading amount is reduced, interval loading is adopted, pitch row spacing is reduced, and the like. The technical scheme is widely applied, but the problems of unsatisfactory blasting effect, high block rate, difficult control of blasting damage and the like still exist. Therefore, it is necessary to develop a blasting construction method with ideal blasting effect and small blasting vibration.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a blasting construction method aiming at the problems, the blasting implementation process is convenient, the blasting controllability is strong, the blasting vibration can be reduced, the construction surrounding environment can be well protected, and the blasting effect is ensured.
The technical scheme of the invention is as follows:
a blasting construction method of blasting equipment comprises the following steps:
and 4, igniting and detonating after the detonation circuit is connected and no fault is confirmed.
Further, in the blasting construction method of the rapid cracking device, the blasting equipment used in the step 2 is a pressure-charging detonation type blasting equipment.
Furthermore, the blasting equipment used in the step 2 is a quick cracking device, the quick cracking device comprises a pipe body, a medicament pipe is arranged in the pipe body, a medicament and an electric ignition head are arranged in the medicament pipe, pipe caps are arranged at two ends of the pipe body, perforated bolts are arranged on the pipe caps and penetrate through the pipe caps, sealing washers and lug washers are arranged on the perforated bolts on the inner side and the outer side of the pipe caps, the perforated bolts on the pipe caps at one end of the pipe body are in sealing connection with the sealing nuts, and leg wires of the electric ignition head inside the medicament pipe are respectively connected with the lugs of the lug washers arranged on the perforated bolts at two ends inside the pipe body.
Furthermore, nitrogen or air is filled in the tube body, the medicament tube is made of a material which can be compressed through air pressure, and the medicament in the medicament tube cannot be ignited by the electric ignition head when the external filling pressure is less than a certain pressure.
Furthermore, the quick fracturing device further comprises an inflation tube, the inflation tube comprises a hollow air tube, one end of the air tube is connected with the inflation nozzle, the other end of the air tube is connected with a nut matched with the perforated bolt, and a ball valve is arranged on the air tube.
Further, in the quick fracturing device blasting construction method, in the step 2, the blocking device comprises a reinforcing cap, a supporting claw is arranged on the outer side of the reinforcing cap in an outward extending mode, and a lead hole is formed in the center of the reinforcing cap.
Furthermore, the inner wall of the blast hole is clamped by the support claws, so that the blasting material is sealed in the blast hole.
Furthermore, can send more than two quick the ware that splits to concatenate, form quick the ware combination that splits to set up in the big gun hole, adjacent quick the ware that splits concatenates through the connecting pipe, the connecting pipe includes the cavity body, and the both ends of cavity body are provided with the connecting nut who matches with the perforation bolt that sends the ware that splits fast, and the last quick ware end that sends the ware combination that splits adopts sealed cap to seal fast.
Further, in the step 2, the number of the fracturing devices used in the single hole is calculated according to the hole depth and the loading amount; the in-hole fracturing devices are connected by using vent pipes, and the vent pipes are used for conducting gas and supporting the fracturing devices on the other hand; after the group of fracturing devices are connected and placed into a blast hole, separating the fracturing devices from the filling mortar by using a separator at one end of each fracturing device close to the top of the hole; the length between the barrier and the ground surface is the filling length, the quick setting mortar used for filling is stirred on site and filled into the hole, and the quick setting mortar can basically meet the requirement of construction strength within 90 minutes.
Further, in step 3, the fracturing device in each blast hole is connected with an external inflation pipeline through an inflation nozzle, and then an air compressor is used for inflating and pressurizing each fracturing device in each blast hole through the inflation pipeline until the internal pressure reaches the blasting pressure; and after the pressurization is finished, the air compressor is removed, the valve is closed to keep the internal pressure stable, and the detonation is carried out after the detonation line is connected.
Furthermore, in step 4, the connection of the initiation networks is in series, parallel or mixed connection, and the actual single initiation number is determined according to the early construction design.
Drawings
FIG. 1 is a flow chart of the blasting in example 1;
FIG. 2 is a schematic view of a rapid frac apparatus of example 2;
FIG. 3 is a schematic view of the pack stopper according to embodiment 2, wherein FIG. a is a top view and FIG. b is an overall view;
FIG. 4 is a schematic view of the inflation tube of embodiment 2;
FIG. 5 is a schematic view of a connecting pipe in embodiment 2;
FIG. 6 is a schematic diagram of the placement and stuffing of the rapid fracker in the blast hole of the rapid fracker in example 2;
FIG. 7 is a schematic view of an external inflation pressurization network of the rapid fracturing device of example 2;
in the above figures, 1 is an inflation tube, 11 is an air tube, 12 is an inflation nozzle, 13 is a nut, 14 is a ball valve, 2 is a quick-cracking device, 21 is a tube body, 22 is a medicament tube, 23 is a medicament, 24 is an electric ignition head, 25 is a tube cap, 26 is a perforated bolt, 27 is a lug washer, 28 is a sealing washer, 29 is a sealing nut, 3 is a connecting tube, 31 is a hollow tube body, 32 is a connecting nut, 4 is quick-setting mortar, 5 is a separator, 51 is a supporting claw, 52 is a reinforcing cap, 53 is a lead hole, 6 is a blast hole, 7 is an external inflation pressurization tube, 8 is a pressure control valve, and 9 is an air compressor.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements or components but not the exclusion of any other elements or components.
The invention provides a blasting construction method of blasting equipment, which is shown in figure 1 and comprises the following steps:
and 4, igniting and detonating after the detonation circuit is connected and no fault is confirmed.
In step 2 of the construction method, the blasting equipment used is a pressurized detonation type blasting equipment, such as a carbon dioxide expansion cracking device.
In a specific embodiment, the adopted blasting device is a quick-acting cracker, the structural schematic diagram of which is shown in fig. 2, and includes a tube body 21, a chemical tube 22 is arranged in the tube body 21, a chemical 23 and an electric ignition head 24 are arranged in the chemical tube 22, tube caps 25 are arranged at two ends of the tube body 21, perforated bolts 26 are arranged on the tube caps 25, the perforated bolts 26 penetrate through the tube caps 25, sealing gaskets 28 and lug gaskets 27 are arranged on the perforated bolts 26 at the inner side and the outer side of the tube caps 25, the perforated bolts 26 on the tube caps 25 at one end of the tube body 21 are in sealing connection with the sealing nuts 29, and the leg wires of the electric ignition head 24 inside the chemical tube 22 are respectively connected with the lug of the lug gaskets 27 arranged on the perforated bolts 26 at two ends inside the tube body 21. The tube body 21 is filled with nitrogen or air, the medicament tube 22 is made of a material which can be compressed through air pressure, and the medicament in the medicament tube 22 cannot be ignited by an electric ignition head when the external filling pressure is less than a certain pressure, so that the safety and the detonation controllability of the quick cracker are ensured.
As shown in fig. 4, the quick fracturing device further comprises an inflation tube 1, the inflation tube 1 comprises a hollow air tube 11, one end of the air tube 11 is connected with an inflation nozzle 12, the other end of the air tube is connected with a nut 13 matched with the perforated bolt 26, a ball valve 14 is arranged on the air tube, quick inflation and detonation operations of the quick fracturing device can be realized through the inflation tube, meanwhile, the inflation tube and the quick fracturing device can be detached, and application convenience is improved.
As shown in fig. 3, which is a schematic view of the barrier, wherein fig. a is a top view and fig. b is a schematic view of the whole barrier, it can be seen that the barrier includes a reinforcing cap 52, a supporting claw 51 is provided on the outer side of the reinforcing cap 52, and a lead hole 53 is provided in the center of the reinforcing cap 52. In the actual construction process, the inner wall of the blast hole is clamped by the support claws 51, so that the blasting material is sealed in the blast hole.
As shown in fig. 5, which is a schematic view of a connecting pipe, the connecting pipe includes a hollow pipe body 31, and both ends of the hollow pipe body 31 are provided with connecting nuts 32 matched with the through-hole bolts 26 of the rapid cracking device. Can send the ware to establish ties two quick to split through the connecting pipe, the end that the ware was sent to the second quick to split adopts the sealing cap to seal and then has realized sending the ware combination that splits fast that two quick send and split the ware constitution.
As shown in fig. 6, for a schematic diagram of the rapid fracturing device blasting construction set by the construction method provided by the present invention, it can be seen that a rapid fracturing device combination composed of two rapid fracturing devices 2 is set in a blast hole 6, the rapid fracturing device combination is isolated and plugged in the blast hole 6 through a barrier 5, the exterior is filled with rapid hardening mortar 4, one end of an inflation tube 1 is connected with the rapid fracturing device, the other end of the inflation tube passes through a lead hole 53 on the barrier 5 and is led out, and can be connected with external pressurization equipment, and the two rapid fracturing devices 2 are connected through a connecting tube 3, so that the setting of the rapid fracturing device combination in one blast hole 6 is completed. Referring to fig. 7, it can be seen that the rapid fracturing device combination is arranged in a plurality of blast holes, then the inflation pipes led out from the blast holes are connected with the air compressor 9 in a series connection and parallel connection mode through the external inflation pressurization pipe 7, and the pressure output is controlled through the pressure control valve 8 arranged at the outlet of the air compressor 9.
In another specific embodiment, the blasting construction of the rapid fracturing device comprises the following specific steps:
And 2, the blasting equipment used in blasting construction is a quick cracking device which is connected in series into a whole through a connecting pipe, an inflation pipe extending to the ground surface and an external inflation pressurization pipe form an inflation network, the barrier device is tightly attached to the lower part of the inflation pipe, and the barrier device is used for dividing quick setting mortar to form a set filling height.
The connecting pipe is used for transmitting pressurized gas in the pipe and supporting the fracturing device in a single blast hole.
And step 3, the inflation pressurization network comprises an air compressor, a pressure control valve and an external inflation pressurization pipe, wherein the air compressor controls the pressurization pressure value through the pressure control valve.
And 4, after the quick fracturing device is inflated and pressurized, detonating by using an electric detonating network.
The foregoing description of the specific exemplary embodiments of the invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching, the exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (9)
1. A blasting construction method of blasting equipment is characterized by comprising the following steps:
step 1, arranging a hole network, arranging a first row of holes in the direction of a free face, wherein the hole diameter is larger than 90mm, the hole pitch is 500-1000 mm, the row pitch of a second row of holes and the first row of holes is 500-1000 mm, and the like, and blowing and cleaning blast holes after hole forming;
step 2, placing blasting materials into the holes in sequence, using a separator to plug the blast holes, sealing the blasting materials in the blast holes, and plugging the outside of the separator through quick setting mortar;
step 3, after the mortar is solidified, inflating and pressurizing the blasting equipment by using an air compressor and an inflation pipeline, wherein the pressure value reaches the detonation pressure;
and 4, igniting and detonating after the detonation circuit is connected and no fault is confirmed.
2. The rapid fracker blasting method of claim 1, wherein the blasting material used in step 2 is a pressure-charged detonation type blasting material.
3. The quick-cracking-device blasting construction method according to claim 1, wherein the blasting device used in the step 2 is a quick cracking device, the quick cracking device comprises a pipe body (21), a medicament pipe (22) is arranged in the pipe body (21), a medicament (23) and an electric ignition head (24) are arranged in the medicament pipe (22), pipe caps (25) are arranged at two ends of the pipe body (21), perforated bolts (26) are arranged on the pipe caps (25), the perforated bolts (26) penetrate through the pipe caps (25), the perforated bolts (26) at the inner side and the outer side of the pipe cap (25) are respectively provided with a sealing washer (28) and a lug gasket (27), the perforated bolt (26) on the pipe cap (25) at one end of the pipe body (21) is in sealing connection with a sealing nut (29), and the leg wires of the electric ignition head (24) inside the medicament pipe (22) are respectively connected with the lugs of the lug gasket (27) arranged on the perforated bolts (26) at the two ends inside the pipe body (21).
4. The rapid cracking device blasting construction method according to claim 3, wherein the tube body (21) is filled with nitrogen or air, and the chemical tube (22) is made of a material that can be compressed by air pressure.
5. The quick-cracking device blasting construction method according to claim 3, wherein the agent in the agent pipe (22) cannot be ignited by an electric ignition head when the external charging pressure is less than a certain pressure.
6. The rapid fracturing device blasting construction method according to claim 3, wherein the rapid fracturing device further comprises an inflation tube (1), the inflation tube (1) comprises a hollow air tube (11), one end of the air tube (11) is connected with an inflation nozzle (12), the other end of the air tube is connected with a nut (13) matched with the perforated bolt (26), and the air tube is provided with a ball valve (14).
7. The quick fracturing unit blasting construction method according to claim 1, wherein the barrier in step 2 comprises a reinforcing cap (52), a supporting claw (51) extends outwards from the outside of the reinforcing cap (52), and a lead hole (53) is formed in the center of the reinforcing cap (52).
8. The rapid fracker blasting method of claim 6, wherein the sealing of the blasting material in the blasthole is accomplished by a pawl (51) engaging the inner wall of the blasthole.
9. The rapid fracturing device blasting construction method according to claim 3, wherein more than two rapid fracturing devices can be connected in series to form a rapid fracturing device combination and arranged in a blast hole, adjacent rapid fracturing devices are connected in series through a connecting pipe (3), the connecting pipe (3) comprises a hollow pipe body (31), and connecting nuts (32) matched with the perforated bolts (26) of the rapid fracturing devices are arranged at two ends of the hollow pipe body (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558483.2A CN111692935A (en) | 2020-06-18 | 2020-06-18 | Blasting construction method of blasting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558483.2A CN111692935A (en) | 2020-06-18 | 2020-06-18 | Blasting construction method of blasting equipment |
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| CN111692935A true CN111692935A (en) | 2020-09-22 |
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| CN202010558483.2A Pending CN111692935A (en) | 2020-06-18 | 2020-06-18 | Blasting construction method of blasting equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611282A (en) * | 2020-12-16 | 2021-04-06 | 中南大学 | Deep hole blasting charging hole sealing method |
| CN113295051A (en) * | 2021-05-31 | 2021-08-24 | 席绍辉 | Air energy expansion rock fracturing system and use method thereof |
| CN113310374A (en) * | 2021-04-29 | 2021-08-27 | 中国化学工程重型机械化有限公司 | Liquid carbon dioxide fracturing pipe differential delay control blasting method |
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| CN112611282A (en) * | 2020-12-16 | 2021-04-06 | 中南大学 | Deep hole blasting charging hole sealing method |
| CN113310374A (en) * | 2021-04-29 | 2021-08-27 | 中国化学工程重型机械化有限公司 | Liquid carbon dioxide fracturing pipe differential delay control blasting method |
| CN113310374B (en) * | 2021-04-29 | 2022-02-08 | 中国化学工程重型机械化有限公司 | Liquid carbon dioxide fracturing pipe differential delay control blasting method |
| CN113295051A (en) * | 2021-05-31 | 2021-08-24 | 席绍辉 | Air energy expansion rock fracturing system and use method thereof |
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Effective date of registration: 20201105 Address after: 052160 Lianzhou Zhen Nan Jie Cun, Gaocheng District, Shijiazhuang City, Hebei Province Applicant after: Ma Mingze Address before: Room 8202, building 1, No. 10, Yongzhi Road, Qinhuai District, Nanjing City, Jiangsu Province, 210001 Applicant before: Nanjing Chuang Hua Safe Technology Ltd. |
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Application publication date: 20200922 |