Peak Elimination Effect of Radial Uncoupled Charge on Explosion Pressure and Its Influence on Rock Fracture Range

Yong FAN; Fan WU; Zhengdong LENG; Guangdong YANG; Xiaohua ZHAO

doi:10.12382/bgxb.2022.0431

您当前的位置：

首页 >

文章列表页 >

Peak Elimination Effect of Radial Uncoupled Charge on Explosion Pressure and Its Influence on Rock Fracture Range

更新时间：2025-08-18

- Peak Elimination Effect of Radial Uncoupled Charge on Explosion Pressure and Its Influence on Rock Fracture Range
- Acta Armamentarii Vol. 45, Issue 1, Pages: 131-143(2024)
- 作者机构：
  
  1. 三峡大学湖北省水电工程施工与管理重点实验室, 湖北宜昌 443002
  2. 三峡大学水利与环境学院, 湖北宜昌 443002
  3. 郑州大学水利科学与工程学院, 河南郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2022.0431
  CLC：
- Received：23 May 2022，
  
  Published Online：06 February 2024，
  
  Published：30 January 2024
- 稿件说明：
移动端阅览
Yong FAN, Fan WU, Zhengdong LENG, et al. Peak Elimination Effect of Radial Uncoupled Charge on Explosion Pressure and Its Influence on Rock Fracture Range[J]. Acta Armamentarii, 2024, 45(1): 131-143.
DOI：

Yong FAN, Fan WU, Zhengdong LENG, et al. Peak Elimination Effect of Radial Uncoupled Charge on Explosion Pressure and Its Influence on Rock Fracture Range[J]. Acta Armamentarii, 2024, 45(1): 131-143. DOI： 10.12382/bgxb.2022.0431.

摘要

弄清单孔爆破岩石破裂规律是揭示群孔爆破岩石破碎机理的基础。从理论上阐明了单孔爆破岩石破裂机理

采用高能爆轰炸药模型和混凝土损伤模型

分别模拟了空气与水不耦合装药下单孔爆破的应力变化过程、裂纹扩展过程以及不耦合系数为1.0~3.5时岩石粉碎区与裂隙区大小;分析了炮孔壁上爆破压力峰值、粉碎区与裂隙区的大小随不耦合系数的变化规律。研究结果表明:由于不同介质的影响

空气不耦合装药结构对于爆压的削峰作用约是水不耦合装药结构的 2倍;当不耦合系数介于1.0~3.5时(药卷直径不变)

空气不耦合装药下粉碎区直径介于4.44~1.59倍炮孔直径

裂隙区直径介于22.5~7.62倍炮孔直径;水不耦合装药下粉碎区直径介于4.44~2.74倍炮孔直径

裂隙区直径介于22.5~10.67倍炮孔直径。

Abstract

Understanding the law of rock fracture induced by single hole blasting is the basis to reveal the mechanism of rock fracture induced by multi-hole blasting. The mechanism of rock fracture induced by single hole blasting is clarified theoretically

and then the change process of stress

the propagation process of crack and the sizes of rock crushed zone and cracked zone with the decoupling coefficient of 1-3.5 are simulated by using a high explosive model and a rock RHT model. The laws of variation of the peak value of blasting pressure on the blast hole wall and the ranges of crushed zone and cracked zone with the increase in decoupling coefficient are analyzed. Calculated results show that the air-decoupling charge structure has about 2 times the peak shaving effect on the blasting pressure than the water-uncoupled charge structure due to the influences of different decoupling media. With the increase of decoupling coefficient from 1 to 3.5 (unchanged charge diameter)

the diameters of crushed zone and cracked zone for the air-decoupling charge structure ranges from 4.44 to 1.59 and 22.5 to 7.62 times hole diameter

respectively. While for the water-decoupling charge structure

the diameters of crushed zone and the cracked zone are 4.44 to 2.74 times and 22.5 to 10.67 times more than hole diameter

respectively.

关键词

Keywords

references

岳中文 , 胡晓冰 , 陈志远 , 等 . 不耦合装药对炸药能量利用率影响的实验研究 [J ] . 爆破 , 2020 , 37 ( 3 ): 34 - 39 .

YUE Z W , HU X B , CHEN Z Y , et al . Experimental study of effect of uncoupled charge on energy utilization efficiency of explosives [J ] . Blasting , 2020 , 37 ( 3 ): 34 - 39 . (in Chinese)

叶志伟 , 陈明 , 魏东 , 等 . 不耦合装药爆破孔壁压力峰值的实验研究 [J ] . 爆炸与冲击 , 2021 , 41 ( 5 ): 055201 .

YE Z W , CHEN M , WEI D , et al . Experimental study on the peak pressure of borehole wall in decoupling charge blasting [J ] . Explosion and Shock Waves , 2021 , 41 ( 5 ): 055201 . (in Chinese)

BANADAKI M M D , MOHANTY B . Numerical simulation of stress wave induced fractures in rock [J ] . International Journal of Impact Engineering , 2012 , 40 ( 2 ): 16 - 25 .

LOU X M , ZHOU P , YU J , et al . Analysis on the impact pressure on blast hole wall with radial air-decked charge based on shock tube theory [J ] . Soil Dynamics and Earthquake Engineering , 2020 , 128 ( 10 ): 1 - 9 .

WANG Y B , WEN Z J , LIU G Q , et al . Explosion propagation and characteristics of rock damage in decoupled charge blasting based on computed tomography scanning [J ] . International Journal of Rock Mechanics and Mining Sciences , 2020 , 136 ( 3 ): 104540 . DOI: 10.1016/j.ijrmms.2020.104540 http://doi.org/10.1016/j.ijrmms.2020.104540 https://linkinghub.elsevier.com/retrieve/pii/S1365160920309060 https://linkinghub.elsevier.com/retrieve/pii/S1365160920309060

ZHU Z M , XIE H P , MOHANTY B . Numerical investigation of blasting-induced damage in cylindrical rocks [J ] . International Journal of Rock Mechanics & Mining Sciences , 2008 , 45 ( 2 ): 111 - 121 .

ZHU Z M . Numerical prediction of crater blasting and bench blasting [J ] . International Journal of Rock Mechanics & Mining Sciences , 2009 , 46 ( 6 ): 1088 - 1096 .

WANG Z L , WANG H C , WANG J G , et al . Finite element analyses of constitutive models performance in the simulation of blast-induced rock cracks [J ] . Computers and Geotechnics , 2021 , 135 ( 4 ): 1 - 12 .

WANG Z L , KONIETZKY H . Modelling of blast-induced fractures in jointed rock masses [J ] . Engineering Fracture Mechanics , 2009 , 76 ( 12 ): 1945 - 1955 . DOI: 10.1016/j.engfracmech.2009.05.004 http://doi.org/10.1016/j.engfracmech.2009.05.004 https://linkinghub.elsevier.com/retrieve/pii/S0013794409001532 https://linkinghub.elsevier.com/retrieve/pii/S0013794409001532

PAN C , XIE L X , LI X , et al . Numerical investigation of effect of eccentric decoupled charge structure on blasting-induced rock damage [J ] . Journal of Central South University , 2022 , 29 ( 2 ): 663 - 679 . DOI: 10.1007/s11771-022-4947-3 http://doi.org/10.1007/s11771-022-4947-3

JAYASINGHE L B , SHANG J L , ZHAO Z Y , et al . Numerical investigation into the blasting-induced damage characteristics of rocks considering the role of in-situ stresses and discontinuity persistence [J ] . Computers and Geotechnics , 2019 , 116 ( 12 ): 103201 - 103207 . DOI: 10.1016/j.compgeo.2019.103201 http://doi.org/10.1016/j.compgeo.2019.103201 https://linkinghub.elsevier.com/retrieve/pii/S0266352X19302654 https://linkinghub.elsevier.com/retrieve/pii/S0266352X19302654

ONEDERRA I A , FURTNEY J K , SELLERS E , et al . Modelling blast induced damage from a fully coupled explosive charge [J ] . International Journal of Rock Mechanics & Mining Sciences , 2013 , 58 ( 58 ): 73 - 84 .

潘强 , 张继春 , 石洪超 , 等 . 单孔不耦合装药爆破的岩体损伤分布特征研究 [J ] . 振动与冲击 , 2019 , 38 ( 18 ): 264 - 269 . (in Chinese)

PAN Q , ZHANG J C , SHI H C , et al . Distribution characteristics of the rock mass damage caused bysingle-hole decoupling charge blasting [J ] . Journal of Vibration and Shock , 2019 , 38 ( 18 ): 264 - 269 . (in Chinese)

苟倩倩 , 赵明生 , 张光雄 , 等 . 装药结构对爆破振动能量传递的影响研究 [J ] . 爆破 , 2020 , 37 ( 1 ): 61 - 67 .

GOU Q Q , ZHAO M S , ZHANG G X , et al . Influence of charge structure on blasting vibration energy transfer [J ] . Blasting , 2020 , 37 ( 1 ): 61 - 67 . (in Chinese)

YI C P , JOHANSSON D , NYBERG U , et al . Stress wave interaction between two adjacent blast holes [J ] . Rock Mechanics & Rock Engineering , 2016 , 49 ( 5 ): 1803 - 1812 .

YI C P , JOHANSSON D . Effects of in-situ stresses on the fracturing of rock by blasting [J ] . Computers and Geotechnics , 2018 , 104 ( 6 ): 321 - 330 . DOI: 10.1016/j.compgeo.2017.12.004 http://doi.org/10.1016/j.compgeo.2017.12.004 https://linkinghub.elsevier.com/retrieve/pii/S0266352X17303373 https://linkinghub.elsevier.com/retrieve/pii/S0266352X17303373

YI C P , SJOEBERG J , JOHANSSON D . Numerical modelling for blast-induced fragmentation in sublevel caving mines [J ] . Tunnelling & Underground Space Technology , 2017 , 68 ( 10 ): 167 - 173 .

卢文波 . 岩石爆破中应力波的传播及其效应研究 [D ] . 武汉 : 武汉水利电力大学 , 1994 .

LU W B . The propagation of stress wave and its effects in rock blasting [D ] . Wuhan : Wuhan University of Hydraulic and Electric Engineering , 1994 . (in Chinese)

朱红兵 , 卢文波 , 吴亮 . 空气间隔装药爆破机理研究 [J ] . 岩土力学 , 2007 , 28 ( 5 ): 986 - 990 .

ZHU H B , LU W B . WU L . Research on mechanism of air-decking technique in bench blasting [J ] . Rock and Soil Mechanics , 2007 , 28 ( 5 ): 986 - 990 . (in Chinese)

刘江超 , 高文学 , 张声辉 , 等 . 水间隔装药孔壁爆炸应力分布规律 [J ] . 兵工学报 , 2021 , 42 ( 12 ): 2646 - 2654 . DOI: 10.3969/j.issn.1000-1093.2021.12.012 http://doi.org/10.3969/j.issn.1000-1093.2021.12.012 在隧道掘进过程中采用水封爆破时，水介质长度对爆破效果具有重要影响。为得到水间隔装药孔壁爆炸应力分布规律，采用Starfield迭加法将应力波的衰减和迭加考虑在内，推导孔壁受到的应力变化情况，并利用有限元分析软件ANSYS/LS-DYNA对计算结果进行模拟验证。结果表明：在炸药和水介质交界处孔壁受到的应力最大，随着到交界处距离的增加，爆炸应力以指数函数的形式衰减；采用等效间隔起爆方式对不同药量的爆炸过程进行模拟，水间隔段孔壁爆炸应力模拟值和理论值衰减规律一致，二者在相同位置的应力误差保持在10%左右，同时水间隔段孔壁指定点受到的总应力随着药量的增加而增大；采用Starfield迭加法获取水间隔段孔壁爆炸应力的计算公式是合理的，能够为水封爆破的应用提供参考。

LIU J C , GAO W X , ZHANG S H , et al . The distribution law of explosion stress on the wall of water interval charging holes [J ] . Acta Armamentarii , 2021 , 42 ( 12 ): 2646 - 2654 . (in Chinese)

叶志伟 , 陈明 , 李桐 , 等 . 一种水耦合轮廓爆破孔壁压力峰值的简化计算方法 [J ] . 岩土力学 , 2021 , 42 ( 10 ): 2808 - 2818 .

YE Z W , CHEN M , LI T , et al . A simplified calculation method for peak pressure of water coupled profile blasting hole wall [J ] . Rock and Soil Mechanics , 2021 , 42 ( 10 ): 2808 - 2818 . (in Chinese)

戴俊 . 岩石动力学特性与爆破理论 [M ] . 北京 : 冶金工业出版社 , 2002 .

DAI J . Rock dynamic characteristics and blasting theory [M ] . Beijing : Metallurgical Industry Press , 2002 . (in Chinese)

宗琦 . 岩石内爆炸应力波破裂区半径的计算 [J ] . 爆破 , 1994 , 11 ( 2 ): 15 - 17 .

ZONG Q . Calculation of radius of rupture zone of explosion stress wave in rock [J ] . Blasting , 1994 , 11 ( 2 ): 15 - 17 . (in Chinese)

戴俊 . 柱状装药爆破的岩石压碎圈与裂隙圈计算 [J ] . 辽宁工程技术大学学报:自然科学版 , 2001 , 20 ( 2 ): 144 - 147 .

DAI J . Calculation of rock crushing circle and fracture circle in cylindrical charge blasting [J ] . Journal of Liaoning University of Engineering and Technology: Natural Science Edition , 2001 , 20 ( 2 ): 144 - 147 . (in Chinese)

HALLQUIST J . Keyword user’s manual [M ] . CA,US : Livermore Software Technology , 2012 .

NELLIS W J , RADOUSKY H B , HAMILTON D C , et al . Equation-of-state, shock-temperature, and electrical-conductivity data of dense fluid nitrogen in the region of the dissociative phase transition [J ] . Journal of Chemical Physics , 1991 , 94 ( 3 ): 2244 - 2257 . DOI: 10.1063/1.459895 http://doi.org/10.1063/1.459895 https://pubs.aip.org/jcp/article/94/3/2244/952422/Equation-of-state-shock-temperature-and-electrical https://pubs.aip.org/jcp/article/94/3/2244/952422/Equation-of-state-shock-temperature-and-electrical The dissociative phase transition of fluid nitrogen at pressures in the range 30–110 GPa (0.3–1.1 Mbar), temperatures in the range 4000–14 000 K, densities up to 3.5 g/cm3, and internal energies up to 1 MJ/mol was investigated by shock compression. Equation-of-state, shock-temperature, and electrical-conductivity experimental data are presented and analyzed in detail.

Views

497

下载量

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Variation Law of Energy Consumption of Engineering Blasting Cavity Expansion with Decoupling Coefficient

Study on Pressure Field Characteristics of Underwater Explosion of Neighbor Air Domain Charge Structure

Complex structure of human Hsp90^N and a novel small inhibitor FS5

Effect of ³⁷Cl enrichment on neutrons in a Molten Chloride Salt Fast Reactor

Multi-frequency point supported LLRF front-end for CiADS wide-bandwidth application

Related Author

Yonghui HUANG

Lixuan QIN

Rui XU

Zhiyu ZHANG

Ke YANG

Zhangtao ZHOU

Honghao MA

Xiangyang YAO

Related Institution

Faculty of Electric Power Engineering, Kunming University of Science and Technology

Yuxi City Yuxi Mining Co.

Faculty of Land Resources Engineering, Kunming University of Science and Technology

CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China

China Ship Scientific Research Center

Postal code：100089
Tel：010-68963060/68962718 Fax：010-68963025 Email：bgxb@cos.org.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备05059581号-4 京公网安备11010802024360号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：44495 Visits Today：475

⁰