SE2450758A1 - Method for calculating amount of explosives for tunnel blasting accordning to drilling process characteristics - Google Patents
Method for calculating amount of explosives for tunnel blasting accordning to drilling process characteristicsInfo
- Publication number
- SE2450758A1 SE2450758A1 SE2450758A SE2450758A SE2450758A1 SE 2450758 A1 SE2450758 A1 SE 2450758A1 SE 2450758 A SE2450758 A SE 2450758A SE 2450758 A SE2450758 A SE 2450758A SE 2450758 A1 SE2450758 A1 SE 2450758A1
- Authority
- SE
- Sweden
- Prior art keywords
- calculating
- blasting
- explosives
- drilling
- rock
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N2015/0277—Average size only
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Mathematical Optimization (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Algebra (AREA)
- Mathematical Analysis (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Pure & Applied Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Computational Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Disclosed is a method for calculating an amount of explosives for tunnel blasting according to drilling process characteristics, and relates to the technical field of blasting engineering.The method includes the following steps: measuring a total surface area of rock powder particles discharged during drilling; calculating energy consumed for generating a fracture surface per unit area; calculating a total crack surface area of rock fragments when a desired blasting effect is achieved; calculating an additional surface area of rock required to achieve the desired blasting effect; calculating explosive energy consumed when the desired blasting effect is achieved; and calculating mass of explosives required for blasting. The present invention can solve the problem that consumption of explosives per unit volume during tunnel blasting cannot be accurately calculated, avoid waste of explosive, and achieve a better blasting effect.
Claims (4)
1. A method for calculating an amount of explosives for tunnel blasting according to drilling process characteristics, comprising the following steps: S l: calculating a total surface area S of rock powder generated by drilling blastholes, and energy Ex consumed for generating a fracture surface per unit area; v S=Sx-a; vx Ea Ex=- ' Swhere E a represents total impact energy of a drill bit during drilling of each blasthole, Va is a volume of the blasthole, and Vx and Sxare an average volume and an average surface area of rock powder generated when drilling respectively, which are measured by a laser particle analyzer; S2: calculating a total crack surface area A of rock fragments when a desired blasting effect is achieved; S3: calculating an additional surface area A - Lh of rock required to achieve the desired blasting effect; where L is a total length of cracks on a tunnel excavation face, and h is an average depth of several blastholes drilled on a tunnel face by use of a hydraulic rock drill according to a blasting design scheme; S4: calculating energy consumed for an additional surface area of rock required to achieve the desired blasting effect; and E = (A - Lh)Ex ; S5: calculating mass of explosives required for blasting according to detonation heat Ej per unit weight of explosives and rock-breaking work efficiency e of explosive: _ E _ Ej-ße m
2. The method for calculating an amount of explosives for tunnel blasting according to drilling process Characteristics according to Claim l, wherein the total impact energy E a of the drill bit, and the volume Va of the blasthole are measured and calculated by means of a sensor and a microcomputer installed on the hydraulic rock drill.
3. The method for calculating an amount of explosives for turmel blasting according to drilling process Characteristics according to Claim 2, wherein Va is calculated according to the drilling diameter d and the drilling depth h.
4. The method for calculating an amount of explosives for tunnel blasting according to drilling process Characteristics according to Claim 1, wherein a process of calculating the total crack surface area A of rock fragments in the S2 comprises: dividing an estimated volume of tunnel rocks blasted on a tunnel face to be excavated by the volume of cubes with a unit side length a, to calculate the number N of the cubes: 5' . h . n N:lflkorn till Patent- och reglstreringsverkef ZÛZL -U7- 01, Nxa2><6 "wherein S” is an area of the tunnel face to be excavated, h is the drilling depth, a blasthole utilization rate n is 0.9, and the unit side length a of the cubes is taken as 0.1 m. . A computer comprises a processor and a memory, wherein an instruction is stored in the memory, the instruction enables the processor to execute a parameter acquisition program, and a program for calculating the mass of explosives required for blasting is executed according to data acquired by the parameter acquisition program to calculate the mass of explosives required for blasting; the parameter acquisition program comprises: acquiring the total impact energy E a of the drill bit and the blasthole volume Va when drilling each blasthole by using the sensor and the microcomputer installed on the rock drill according to any one of Claims 1-4, acquiring the average volume Vx and the average surface area Sx of rock powder generated during drilling through the laser particle analyzer, and acquiring the total length L of cracks on the tunnel excavation face and the depth h of drilling With the hydraulic rock drill; and the program for calculating the mass of explosives required for blasting comprises the method in the steps 1-5 according to any one of Claims 1-4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310862687.9A CN116592722B (en) | 2023-07-14 | 2023-07-14 | Method for calculating tunnel blasting explosive dosage through drilling process characteristics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE2450758A1 true SE2450758A1 (en) | 2025-01-15 |
| SE547829C2 SE547829C2 (en) | 2025-12-09 |
Family
ID=87599392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE2450758A SE547829C2 (en) | 2023-07-14 | 2024-07-04 | Method for calculating amount of explosives for tunnel blasting accordning to drilling process characteristics |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116592722B (en) |
| SE (1) | SE547829C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119129232B (en) * | 2024-08-28 | 2025-04-29 | 东北大学 | Explosive specific consumption determination method based on drilling machine working parameters and optimal mining and selection comprehensive energy consumption |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2677727C1 (en) * | 2018-02-21 | 2019-01-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тихоокеанский государственный университет" | Optimal es charge determining method taking into account of the pre-destruction zone |
| CN110986706A (en) * | 2019-11-08 | 2020-04-10 | 武汉武重矿山机械有限公司 | Rock drilling explosive performance detection method |
| CN111101952B (en) * | 2019-12-16 | 2021-08-10 | 中铁十六局集团路桥工程有限公司 | Construction method for tunnel blasting of complex layered rock stratum |
| CN114577077A (en) * | 2021-11-05 | 2022-06-03 | 中铁三局集团有限公司 | Tunnel excavation blasting optimization method based on drilling energy dissipation monitoring |
| CN115329531A (en) * | 2022-06-30 | 2022-11-11 | 中交第二航务工程局有限公司 | Blasting unit consumption evaluation calculation method based on specific drilling energy |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02234000A (en) * | 1989-03-03 | 1990-09-17 | Yasuji Nakajima | Simplified calculation method for packing length, etc., in boring blast |
| KR100866105B1 (en) * | 2007-03-20 | 2008-10-31 | 정영문 | Blasting construction method of tunnel |
| CN102878876B (en) * | 2012-10-08 | 2014-08-27 | 江西稀有稀土金属钨业集团有限公司 | Mine roadway advancing and undermining method and main blasting parameters |
| KR101555618B1 (en) * | 2015-06-04 | 2015-09-24 | 윤은경 | Excavation method for tunnel drilling vibration reduction and increased Chapter (long-hole blasting) |
| CN105937395B (en) * | 2015-09-14 | 2018-10-26 | 安徽建筑大学 | A kind of comprehensive dig of coal mine big cross section hard-rock tunnel combines rapidly and efficiently driving method with big gun pick |
| JP6713627B2 (en) * | 2015-09-17 | 2020-06-24 | 鹿島建設株式会社 | Method and system for evaluating rock mass in front of tunnel face |
| CN109446472B (en) * | 2018-10-11 | 2023-02-28 | 本钢板材股份有限公司 | Method for calculating optimal explosive quantity and arranging optimal charging structure |
| CN110924953A (en) * | 2019-12-06 | 2020-03-27 | 中铁十八局集团建筑安装工程有限公司 | Tunnel hole body excavation construction process |
| CN113203328B (en) * | 2021-05-28 | 2022-08-26 | 江汉大学 | Dynamic and static blasting combined forming method for tunnel excavation contour surface |
-
2023
- 2023-07-14 CN CN202310862687.9A patent/CN116592722B/en active Active
-
2024
- 2024-07-04 SE SE2450758A patent/SE547829C2/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2677727C1 (en) * | 2018-02-21 | 2019-01-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тихоокеанский государственный университет" | Optimal es charge determining method taking into account of the pre-destruction zone |
| CN110986706A (en) * | 2019-11-08 | 2020-04-10 | 武汉武重矿山机械有限公司 | Rock drilling explosive performance detection method |
| CN111101952B (en) * | 2019-12-16 | 2021-08-10 | 中铁十六局集团路桥工程有限公司 | Construction method for tunnel blasting of complex layered rock stratum |
| CN114577077A (en) * | 2021-11-05 | 2022-06-03 | 中铁三局集团有限公司 | Tunnel excavation blasting optimization method based on drilling energy dissipation monitoring |
| CN115329531A (en) * | 2022-06-30 | 2022-11-11 | 中交第二航务工程局有限公司 | Blasting unit consumption evaluation calculation method based on specific drilling energy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116592722B (en) | 2023-09-12 |
| SE547829C2 (en) | 2025-12-09 |
| CN116592722A (en) | 2023-08-15 |
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