CN109115061B - Detonation control method for reducing blasting vibration - Google Patents
Detonation control method for reducing blasting vibration Download PDFInfo
- Publication number
- CN109115061B CN109115061B CN201811017587.1A CN201811017587A CN109115061B CN 109115061 B CN109115061 B CN 109115061B CN 201811017587 A CN201811017587 A CN 201811017587A CN 109115061 B CN109115061 B CN 109115061B
- Authority
- CN
- China
- Prior art keywords
- blasting
- hole
- holes
- network
- adopting
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
- F42D1/05—Electric circuits for blasting
-
- 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 provides a detonation control method for reducing blasting vibration, which comprises the following steps: firstly, arranging a duplex series-parallel blasting network, conducting the blasting network outside holes by adopting a connecting side network, connecting 4 sections of detonators outside the holes between each row of blasting holes, detonating a back network after delaying for a certain time, and conducting the explosives in the holes by adopting different sections of detonators in different heights in a delaying manner, wherein the duplex series-parallel blasting network conducts the detonation waves into branches by adopting a four-way conductor; and secondly, the compound serial-parallel blasting network adopts a deep hole loosening blasting control method, and adopts blasting equipment to download reasonable delay time for each electronic detonator in the hole, so that the blast holes are blasted in sequence according to an expected sequence. The method can improve the blasting quality, reduce the blasting vibration effect and enlarge the scale of one-time blasting, and can realize larger-scale blasting and accelerate the blasting construction progress through the reliability of high-precision millisecond detonator and millisecond delay blasting network inside and outside the hole.
Description
Technical Field
The invention relates to a detonation control method for reducing blasting vibration effect, belongs to the technical field of blasting, and particularly relates to a technology capable of effectively reducing blasting vibration effect.
Background
Blasting has also been associated with the deleterious effects of the blast-induced shock waves of vibrating air, while greatly promoting the development of productivity. In the prior art, in order to control the blasting earthquake effect or the vibration effect, a hole-by-hole millisecond delay detonation technology is generally adopted in outdoor blasting at home and abroad, the earthquake reduction principle of the technology is to reduce the single-section detonation requirement for the country as much as possible, and the purpose of reducing vibration by adopting shorter delay interval time to enable all sections of earthquake signals to mutually interfere is also achieved, but in practical application, due to the problem of the detonation precision of an industrial detonator, the delay interval time is usually increased to avoid the phenomenon that the vibration effect is increased due to the superposition of all sections of blasting vibration caused by the section jumping of the detonator, so that the millisecond delay is not further shortened.
In addition, the rock foundation pit excavation project of the capital construction project often needs to carry out deep hole blasting construction under the complicated surrounding environment, the safety of surrounding buildings needs to be ensured, the reliability of the explosion propagation network in the prior art is low, the large-scale blasting project is difficult to bear, and the construction progress is slow.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a detonation control method for reducing blasting vibration, which can improve the blasting quality, reduce the blasting vibration effect, enlarge the scale of primary blasting, and realize larger-scale blasting and accelerate the blasting construction progress by the reliability of high-precision millisecond detonator and millisecond delay blasting networks in and out of a hole, and comprises the following steps:
firstly, arranging a duplex series-parallel blasting network, conducting the blasting network outside holes by adopting a connecting side network, connecting 4 sections of detonators outside the holes between each row of blasting holes, detonating a back network after delaying for a certain time, and conducting the explosives in the holes by adopting different sections of detonators in different heights in a delaying manner, wherein the duplex series-parallel blasting network conducts the detonation waves into branches by adopting a four-way conductor;
and secondly, the compound serial-parallel blasting network adopts a deep hole loosening blasting control method, and adopts blasting equipment to download reasonable delay time for each electronic detonator in the hole, so that the blast holes are blasted in sequence according to an expected sequence.
Preferably, the electronic detonator adopts a combined tube of a detonator and a digital electronic detonator.
Preferably, the density coefficient of blast holes in the duplex series-parallel blasting network is greater than 1, the pitch of holes is greater than the row pitch, and no charge is filled in the holes at intervals.
Preferably, for blast holes with the hole depth of more than 10m, multi-section delay in the holes is adopted, the maximum explosive quantity is controlled, the blasting vibration is strictly controlled while the blasting scale is enlarged, the safety of an adjacent building is ensured, and for blast holes with the hole depth of less than 10m, a continuous charging mode is adopted.
Preferably, the charging structure adopted by the method is a structure for increasing the bottom of the hole, charging in layers and blocking in layers.
Preferably, the method further comprises: a pre-crack is formed between the excavation area and the reserved area by adopting a pre-crack control blasting control method, the pre-crack is formed on the boundary of the blasting area by utilizing the pre-crack hole detonated in advance, and the propagation and the diffusion of blasting vibration waves to the periphery are blocked, so that the aim of reducing the blasting vibration is fulfilled.
Preferably, the delay time is set as: when continuous charging is carried out in the hole, the delay time between the holes is 5ms, when 2 sections of interval charging are carried out in the hole, the delay time between the layers in the hole is 5ms, the delay time between the holes is 10ms, when 3 sections of interval charging are carried out in the hole and the hole depth is more than 15m, the delay time between the layers in the hole is 4ms, and the delay time between the holes is 12 ms; the time delay among the holes is 30-60ms, each 3 pre-cracking holes are in one group, the time delay among adjacent groups is 3ms, and the main explosion hole is detonated in advance and is more than 100 ms.
Preferably, the blast hole of the deep hole loosening blasting is a down-the-hole drill, the diameter of the hole is 90mm, the drilling depth h is determined according to the foundation excavation depth and the ultra-depth, the range of h is 4-19m, and the drilling once blasting reaches the design height; the minimum resistance line W of the mesh design is 2.5-3.5m, the pitch a is 2.5-3.0m, the row pitch b is 2.0-2.5m, and the drill hole inclination angle is 75 degrees; the blocking length is controlled to be about (0.8-1.2) W, when the layered charging is adopted in the hole, the inter-layer blocking in the hole is 1.5-2.0m, and the hole opening blocking is 3.5-4.0 m.
Preferably, the deep hole blasting charge amount calculation formula under the multi-boundary condition is as follows:
Q＝KqHab (1)
in the formula, K is the charge increase coefficient, the first row of the parallel grid is 1, the later rows are 1.1-1.2, q is the unit explosive consumption, and 0.35kg/m is taken3H is the excavation depth m; a is the pitch, m; b is the row spacing, m.
The detonation control method for reducing blasting vibration can improve the blasting quality, reduce the blasting vibration effect and enlarge the scale of one-time blasting, and can realize larger-scale blasting and accelerate the blasting construction progress by the reliability of the high-precision millisecond detonator and the millisecond delay blasting network inside and outside the hole.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a detonation control method for reducing blast vibration according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a duplex serial-parallel blasting network according to an embodiment of the present invention;
FIGS. 3(a) and 3(b) are schematic diagrams of vibration waves with a borehole delay of 10ms and 15ms, respectively, according to an embodiment of the present invention;
fig. 4(a) and 4(b) are schematic diagrams of vibrational modes of blasting of a nonel detonator and an electronic detonator, respectively, according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, the detonation control method for reducing the blasting vibration includes the steps of:
s101, arranging a compound series-parallel blasting network, referring to fig. 2, conducting outside holes by adopting a connecting side network, connecting 4 sections of detonators outside the holes between each row of blasting holes, detonating a back network after delaying for a certain time, and conducting blasting waves into branches by adopting a four-way conductor in the compound series-parallel blasting network, wherein the detonators in the holes are delayed to detonate explosives in the holes by adopting different sections of detonators;
and S102, the compound serial-parallel blasting network adopts a deep hole loosening blasting control method, and adopts blasting equipment to download reasonable delay time for each electronic detonator in the hole, so that the blast holes are blasted in sequence according to an expected sequence.
The blasting network designed in figure 2 is designed to better control blasting vibration damage, ensure building safety, reduce single-section blasting explosive quantity and achieve the purpose of controlling blasting vibration damage. The method is characterized in that a conventional blasting network is designed primarily, and in order to meet the requirement that each blast hole has one sound and a large-scale explosive quantity can be detonated, the effect can be achieved only by adopting a non-electric detonator blasting network to detonate and form inner and outer combination time delay of the blast hole. As the non-electric initiation network cannot be used for checking before initiation, in order to ensure the accuracy of initiation transmission of the initiation network, the outside of the hole is conducted by a connecting side network, 4 sections of detonators are connected outside the hole between each row of blast holes, the back network is initiated by delaying 75ms, the inner explosives in the holes are initiated by different sections of detonators with different heights in a delayed mode, the initiation time of each row of blast holes is designed to be overlapped in a beautiful mode, the initiation of each row of blast holes deduced in sequence does not have time overlapping, the effect of single hole and single sound among the holes is achieved, however, due to poor quasi-explosiveness of the network, blind blasts can appear in blasting construction, when the rock detonators with external force are connected outside the holes close to an initiation station in the network to interrupt the initiation transmission, and all the detonators behind the same side reject the detonation, so. If one point is interrupted to propagate explosion on both sides, blind guns can be formed in the following blast holes, blind guns appear in blasting construction, not only is the blasting construction delayed, but also the minimum resistance line of the blast holes near loosened rocks can be changed, damages such as flyrock and the like and poor blasting loosening effects are easily caused, and therefore further improvement and improvement are needed for the blasting network. The duplex network detonation is designed, relay detonators are not adopted, detonation waves are conducted into a path through a four-way conductor, and even if relay delay detonators outside holes on one side fail to detonate and interrupt booster, the detonation waves can be conducted from the other side through the four-way conductor to excite the next relay delay detonators in a booster network on the side to detonate when the next relay delay detonators extend outwards, so that booster of the relay delay detonators behind the relay delay detonators is not influenced. In this embodiment, the electronic detonator is replaced by a combined tube of a detonator and a digital electronic detonator. The density coefficient of blast holes in the duplex series-parallel blasting network is more than 1, the pitch of holes is more than row pitch, and no charge is filled in the holes at intervals. For blast holes with the hole depth of more than 10m, multi-section delay is adopted in the holes, the maximum explosive quantity is controlled, the blasting vibration is strictly controlled while the blasting scale is enlarged, and the safety of an adjacent building is ensured.
In the embodiment, a millisecond delay blasting technology and a hole-by-hole blasting technology are adopted, the time for generating the rock with the minimum earthquake effect is consistent with the time for supplementing the free surface and the rock required for supplementing and crushing by using blasting fragment collision, and the delay time with the minimum earthquake effect is selected, so that the blasting effect cannot be influenced. The principle of determining the delay time in this embodiment includes: the main seismic phases of seismic waves generated by explosive quantities detonated before and after are not overlapped; selecting rock time to enable seismic waves generated by explosive quantities detonated front and back to interfere with each other; the delay time between the parallel-connected rows is longer than the delay time in the rows, and the delay time is determined through tests and long-term observation under different geological conditions and environments. The hole-by-hole initiation is carried out by means of accurate delay of the electronic detonators, reasonable delay time is downloaded to the detonators in the holes through initiation equipment, the blast holes are sequentially initiated according to an expected sequence, and when the delay interval of adjacent blast holes is reasonably selected, rocks between the adjacent blast holes are collided and extruded with each other when moving, so that the further breakage of the rocks is guaranteed. The hole-by-hole initiation makes the first blast hole create the 'instant free surface' for the second blast hole, the blast stress wave is reflected more fully, thereby achieving the superposition effect of fully utilizing the energy of the explosive, the explosive consumption is most economical and reasonable, and the produced blast vibration is also the least. Because the excitation of the delay blasting at present has no accurate research result, and no acknowledged theoretical formula or empirical formula exists, the change trend of the blasting vibration under different delays can be analyzed only through the vibration monitoring of engineering practice, and then the change of the vibration intensity is determined.
According to the surrounding environmental conditions of an excavation foundation, particularly the distance between the east side of an explosion area and a residential area is only 15m, considering rock engineering properties, selecting a loosening blasting scheme of fragmented excavation, wherein a down-the-hole drill is adopted for blast holes of deep hole loosening blasting, the diameter of each blast hole is 90mm, the drilling depth h is determined according to the excavation depth and the ultra-depth of the foundation, the range of h is 4-19m, and the drilling hole reaches the design height through one-time blasting; designing a minimum resistance line W of 2.5-3.5m according to the hole pattern parameters and combining site terrain and geological conditions, wherein the hole pitch a is 2.5-3.0m, the row pitch b is 2.0-2.5m, and the drill hole inclination angle is 75 degrees; the blocking length is controlled to be about (0.8-1.2) W according to the rock property and the surrounding environment, when the layered charging is adopted in the hole, the blocking among the layers in the hole is 1.5-2.0m, the blocking of the hole opening is 3.5-4.0m, and the blocking quality is enhanced.
The embodiment is based on the topographic and geological conditions, combines the design of multi-section accurate millisecond delay blasting in the hole, adopts a loading structure with moderately increased hole bottom dosage, layered loading and layered blocking, and improves the blasting and rock breaking effects on the premise of strictly controlling blasting vibration and flyrock. According to the energy conservation principle and the rock blasting action characteristic, the deep hole blasting charge amount calculation formula under the multi-boundary condition is as follows:
Q＝KqHab (1)
in the formula, K is the charge increase coefficient, the first row of the parallel grid is 1, the later rows are 1.1-1.2, q is the unit explosive consumption, and 0.35kg/m is taken3H is the excavation depth m; a is the pitch, m; b is the row spacing, m.
Meanwhile, the explosive simultaneous firing amount needs to be controlled, the allowable maximum particle vibration speed of the protected object is determined according to the surrounding environment conditions, and the maximum explosive simultaneous firing amount is determined after reverse calculation.
Preferably, the method further comprises: a pre-crack is formed between the excavation area and the reserved area by adopting a pre-crack control blasting control method, the pre-crack is formed on the boundary of the blasting area by utilizing the pre-crack hole detonated in advance, and the propagation and the diffusion of blasting vibration waves to the periphery are blocked, so that the aim of reducing the blasting vibration is fulfilled.
For blast holes with the hole depth of more than 10m, multi-section delay in the holes is adopted, the maximum explosive amount is controlled, the blasting vibration is strictly controlled while the blasting scale is enlarged, the safety of the nearby building is ensured, for blast holes with the hole depth of less than 10m, a continuous charging mode is adopted, and for blast holes with the hole depth of less than 10m, a continuous charging mode is adopted.
A pre-crack is formed between the excavation area and the reserved area by adopting a pre-crack control blasting control method, the pre-crack is formed on the boundary of the blasting area by utilizing the pre-crack hole detonated in advance, and the propagation and the diffusion of blasting vibration waves to the periphery are blocked, so that the aim of reducing the blasting vibration is fulfilled. For this, the delay time is set as: when continuous charging is carried out in the hole, the delay time between the holes is 5ms, when 2 sections of interval charging are carried out in the hole, the delay time between the layers in the hole is 5ms, the delay time between the holes is 10ms, when 3 sections of interval charging are carried out in the hole and the hole depth is more than 15m, the delay time between the layers in the hole is 4ms, and the delay time between the holes is 12 ms; the time delay among the holes is 30-60ms, each 3 pre-cracking holes are in one group, the time delay among adjacent groups is 3ms, and the main explosion hole is detonated in advance and is more than 100 ms.
Referring to fig. 3(a) and 3(b), 2 blasting tests are carried out on a test site, the 2 delays are respectively 10ms and 15ms, although the maximum vibration speeds are very close, the waveform with the delay of 15ms is more stable, the energy distribution is more uniform, and after a plurality of tests and the same analysis method, the blasting grid is determined to be 41 holes per detonation.
Referring to fig. 4(a) and 4(b), the blasting effect of the electronic detonator and the detonator is compared, and a test is performed, wherein 2 sections and 4 sections are selected for the detonator, 5 voids are formed in a single row, the electronic detonator is used for 24 times, the time delay of the front 11 holes is 20ms, the time delay of the rear 13 holes is 26ms, compared with the blasting by using the detonator, the vibration curve energy distribution of the electronic detonator is uniform, the ground surface vibration speed is low, the vibration main frequency is far away from the natural frequency of a building, and the blasting parameters of the two detonators are shown in the following table 1.
As can be seen from the table below, an electronic detonator is necessarily required to participate in the implementation of the method.
TABLE 1 comparison of two detonator blasting parameters
| Item | Detonator with detonating tube | Digital electronic detonator |
| Single priming charge/kg | 212 | 1030 |
| Number of single detonating hole/ |
5 | 23 |
| Volume per m of single excavation3 | 1000 | 5500 |
| Maximum vibration velocity (cm s) at building-1) | 2.70 | 0.44 |
| Principal seismic frequency/Hz | 22.34 | 55.56 |
The detonation control method for reducing blasting vibration adopted by the embodiment can improve the blasting quality, reduce the blasting vibration effect and enlarge the scale of primary blasting, and can realize larger-scale blasting and accelerate the blasting construction progress by the reliability of high-precision millisecond detonator and millisecond delay blasting network inside and outside the hole.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It will be understood by those skilled in the art that variations and modifications of the embodiments of the present invention can be made without departing from the scope and spirit of the invention.
Claims (1)
1. A detonation control method for reducing blasting vibration is characterized by comprising the following steps:
firstly, arranging a duplex series-parallel blasting network, conducting the blasting network outside holes by adopting a connecting side network, connecting 4 sections of detonators outside the holes between each row of blasting holes, detonating a back network after delaying for a certain time, and conducting the explosives in the holes by adopting different sections of detonators in different heights in a delaying manner, wherein the duplex series-parallel blasting network conducts the detonation waves into branches by adopting a four-way conductor;
secondly, the compound series-parallel blasting network adopts a deep hole loose blasting control method, and adopts blasting equipment to download reasonable delay time for each electronic detonator in the hole, so that the blast holes are blasted in sequence according to an expected sequence; the electronic detonator adopts a combined tube of a detonator and a digital electronic detonator; the density coefficient of blast holes in the duplex series-parallel blasting network is more than 1, the pitch of holes is more than row pitch, and the holes are filled with powder at intervals; for blast holes with the hole depth of more than 10m, adopting multi-section delay in the holes, controlling the maximum explosive amount, strictly controlling blasting vibration while expanding the blasting scale, ensuring the safety of the adjacent buildings, and for blast holes with the hole depth of less than 10m, adopting a continuous charging mode; the method adopts a charge structure which is a structure for increasing the amount of the drug at the bottom of the hole, charging in layers and blocking in layers; the method further comprises the following steps: forming a pre-crack between the excavation area and the reserved area by adopting a pre-crack control blasting control method, forming the pre-crack on the boundary of the blasting area by utilizing the pre-crack hole detonated in advance, and blocking the propagation and the diffusion of blasting vibration waves to the periphery, thereby achieving the purpose of reducing the blasting vibration; the blast hole of the deep hole loosening blasting adopts a down-the-hole drill, the diameter of the hole is 90mm, the drilling depth h is determined according to the foundation excavation depth and the ultra-depth, the range of h is 4-19m, and the drilling once blasting reaches the design height; the minimum resistance line W of the mesh design is 2.5-3.5m, the pitch a is 2.5-3.0m, the row pitch b is 2.0-2.5m, and the drill hole inclination angle is 75 degrees; the blocking length is controlled to be about (0.8-1.2) W, when the layered charging in the hole is adopted, the inter-layer blocking in the hole is 1.5-2.0m, and the hole opening blocking is 3.5-4.0 m; the deep hole blasting charge amount calculation formula under the multi-boundary condition is as follows:
Q＝KqHab (1)
in the formula, K is a charge increasing coefficient, 1 is taken as the first row of the parallel grid, 1.1-1.2 is taken as each later row, q is the unit explosive consumption, 0.35kg/m3 is taken, and H is the excavation depth, m; a is the pitch, m; b is the row spacing, m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811017587.1A CN109115061B (en) | 2018-09-01 | 2018-09-01 | Detonation control method for reducing blasting vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811017587.1A CN109115061B (en) | 2018-09-01 | 2018-09-01 | Detonation control method for reducing blasting vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109115061A CN109115061A (en) | 2019-01-01 |
| CN109115061B true CN109115061B (en) | 2021-02-19 |
Family
ID=64860427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811017587.1A Expired - Fee Related CN109115061B (en) | 2018-09-01 | 2018-09-01 | Detonation control method for reducing blasting vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109115061B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657722A (en) * | 2019-09-25 | 2020-01-07 | 昆明理工大学 | Hole-by-hole initiation method for complex environment foundation pit excavation |
| CN110879028A (en) * | 2019-11-05 | 2020-03-13 | 伊春鹿鸣矿业有限公司 | Surface mine blasting technical method for preventing frozen layer from being massive |
| CN110779404A (en) * | 2019-11-06 | 2020-02-11 | 国网辽宁省电力有限公司大连供电公司 | Blasting method for improving vibration frequency of shaft blasting |
| RU2734651C1 (en) * | 2020-03-03 | 2020-10-22 | федеральное государственное бюджетное образовательное учреждение высшего образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Method of multi-row short-delayed blasting |
| CN111256549B (en) * | 2020-03-06 | 2021-06-08 | 中国矿业大学(北京) | Rock drift deep hole multiple wedge straight hole internal segmentation differential cut blasting method |
| CN111397452A (en) * | 2020-03-30 | 2020-07-10 | 南阳市神威爆破工程有限公司 | Networking method for using electronic detonator in ultra-large scale |
| CN111256553A (en) * | 2020-03-30 | 2020-06-09 | 南阳市神威爆破工程有限公司 | Blasting duplex network connection method |
| CN114046700B (en) * | 2021-11-30 | 2023-06-09 | 湖南柿竹园有色金属有限责任公司 | Intelligent detonation network system during hole extension and detonation method thereof |
| CN114812309A (en) * | 2022-03-18 | 2022-07-29 | 淄博圣世达爆破工程有限公司 | Pre-splitting blasting engineering method for digital electronic detonator |
| CN114739246B (en) * | 2022-04-20 | 2023-08-29 | 北京大成国测科技有限公司 | Blasting method and system for reducing blasting vibration |
| CN114858022B (en) * | 2022-05-26 | 2023-03-28 | 江苏长江爆破工程有限公司 | Vibration reduction detonation network and chimney directional blasting demolition method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042786A (en) * | 2010-11-12 | 2011-05-04 | 中铁十二局集团第二工程有限公司 | Controlled blasting construction method for shallow-buried large-section tunnel |
| CN104111008A (en) * | 2014-06-19 | 2014-10-22 | Sk建设株式会社 | Explosion system and method using electronic detonator and non-electronic detonator combination mode |
| CN106288995A (en) * | 2016-08-22 | 2017-01-04 | 安徽理工大学 | A kind of hole-by-hole initiation explosion treatment Abandoned golfs method |
| CN106895751A (en) * | 2017-01-12 | 2017-06-27 | 中交公局第五工程有限公司 | A kind of medium-length hole blasting calculating method |
-
2018
- 2018-09-01 CN CN201811017587.1A patent/CN109115061B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042786A (en) * | 2010-11-12 | 2011-05-04 | 中铁十二局集团第二工程有限公司 | Controlled blasting construction method for shallow-buried large-section tunnel |
| CN104111008A (en) * | 2014-06-19 | 2014-10-22 | Sk建设株式会社 | Explosion system and method using electronic detonator and non-electronic detonator combination mode |
| CN106288995A (en) * | 2016-08-22 | 2017-01-04 | 安徽理工大学 | A kind of hole-by-hole initiation explosion treatment Abandoned golfs method |
| CN106895751A (en) * | 2017-01-12 | 2017-06-27 | 中交公局第五工程有限公司 | A kind of medium-length hole blasting calculating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109115061A (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109115061B (en) | Detonation control method for reducing blasting vibration | |
| CN110779403B (en) | Hole-by-hole initiation and presplitting blasting crack forming method for open deep hole step presplitting hole under complex environment | |
| CN102607353B (en) | A kind of perron Delay between holes controlled blasting method | |
| CN102607341B (en) | A kind of Stability of Open-pit Mine Slope controlled blasting method | |
| CN104634198B (en) | Close on controlled blasting construction method in the massif excavation of highway limit | |
| CN103615941A (en) | Method for blasting shallow section of modernization railway tunnel | |
| CN103398637B (en) | Mean-peak micro-quake fine control blasting construction method using high-precision digital electronic detonators | |
| CN108332626A (en) | The computational methods that a kind of electric detonator single hole interval elementary errors buffer blasting is rationally delayed | |
| CN104482816B (en) | A kind of vertical periphery segment algorithm gradient presplit blasting method and device | |
| CN110657722A (en) | Hole-by-hole initiation method for complex environment foundation pit excavation | |
| CN107003104A (en) | Delaying blasting method and explosion and delay instrument between most short row endoporus | |
| CN109238055A (en) | A kind of medium-length hole segment blast method and device | |
| CN113587753A (en) | Axial non-coupling water spaced charging structure and smooth blasting method using same | |
| CN110671981A (en) | Smooth blasting method for vertical shaft tunneling in high stress environment | |
| CN102620612B (en) | Underground mine medium-length hole blasting method | |
| CN110657723B (en) | Smooth blasting method for hole-by-hole initiation in complex environment | |
| CN108088338A (en) | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.1-1.3m | |
| CN108413822A (en) | To fan shaped medium length hole Shock reducing blasting method in one kind | |
| CN107339921A (en) | A kind of subway foundation pit blasting method | |
| CN108061491A (en) | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m | |
| CN108061492A (en) | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 0.8-1m | |
| CN112484589A (en) | Method for blasting tunnel under elevated buttress | |
| CN103791786A (en) | Underground diaphragm wall bed rock grooving pre-splitting blasting method | |
| CN110793409A (en) | Bundle-shaped blast hole cut blasting method for reducing vibration by utilizing random delay error of common detonator | |
| KR101704013B1 (en) | Single and complex free surface in phase expansion and a series of free surface blasting method using a differential delay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 710064 central section of south two ring road, Yanta District, Xi'an, Shaanxi Applicant after: CHANG'AN University Applicant after: CHINA ELECTRONIC Research Institute OF ENGINEERING INVESTIGATIONS AND DESIGN Address before: No.70 Youyi East Road, Xi'an, Shaanxi 710054 Applicant before: CHINA ELECTRONIC Research Institute OF ENGINEERING INVESTIGATIONS AND DESIGN Applicant before: CHANG'AN University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 Termination date: 20210901 |