On the distribution of explosion strain field and fracture field in segment charge

ZUO Jinjing; YANG Renshu; GONG Min; XIE Quanmin; ZHAO Yong; YOU Yuanyuan

doi:10.11883/bzycj-2022-0333

Volume 43 Issue 3

Mar. 2023

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ZUO Jinjing, YANG Renshu, GONG Min, XIE Quanmin, ZHAO Yong, YOU Yuanyuan. On the distribution of explosion strain field and fracture field in segment charge[J]. Explosion And Shock Waves, 2023, 43(3): 035101. doi: 10.11883/bzycj-2022-0333

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On the distribution of explosion strain field and fracture field in segment charge

doi: 10.11883/bzycj-2022-0333

1.
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
2.
State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, Hubei, China
3.
School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

Received Date: 2022-08-07
Rev Recd Date: 2022-10-02

Available Online: 2022-10-13

Publish Date: 2023-03-05

Abstract

Abstract

In order to explore the distribution of the explosion strain field and fracture field of segmented charge explosion, used digital image correlation analysis (DIC) and computerized tomography (CT) scanning experiment analyzed the distribution of the explosion strain field and fracture field of the segment charge, established three-dimensional reconstruction model of “rock-explosion crack”, described the spatial distribution of the location and shape of the explosion crack, and obtained the fractal dimension and damage degree of the explosion crack. The research results show that: the segment charge changes the full-field strain morphology of the medium caused by continuous charge. Under the condition of satisfying the damage effect of upper sublevel explosive on medium, the effect of lower sublevel explosive on medium is increased, at the same time, the time of blast stress wave is prolonged. It can be seen from the three-dimensional cracks of segmented charge and continuous charge explosion, the explosion crack mainly expands along the radial direction, the annular crack formed by axial stress and strain is not obvious, and the radial direction is the main direction of rock failure. When the charge ratio of the upper segment is 0.4, the strain peak value of the lower segment is larger, which better meets the demand of the rock mass for explosion energy in the lower segment in engineering practice. Under the same charging coefficient, the explosive cracks in the continuous charging structure do not run through the whole specimen, and the explosive cracks in the plugging section are less, under the segment charge structure, the upper sublevel of rock mass can better use the energy of explosive explosion to break rock because the position of explosive is improve. The overall damage degree of rock in segment charge is 23.5% higher than that in continuous charge, and the damage degree of rock in upper sublevel is 46.4% higher than that in continuous charge.
- explosion,
- segment charge,
- full-field strain,
- fracture field,
- three dimensional reconstruction

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References(17)

References

[1]	MA X M, WANG Y, LIN T S, et al. Intelligent decision system for vertical shaft blasting scheme based on knowledge base and its application [J]. IEEE Access, 2021, 9: 163831–163842. DOI: 10.1109/ACCESS.2021.3128550.
[2]	MA Q Y, YUAN P, ZHANG J S, et al. Blast-induced damage on millisecond blasting model test with multicircle vertical blastholes [J]. Shock and Vibration, 2015, 2015: 504043. DOI: 10.1155/2015/504043.
[3]	颜事龙, 冯叔瑜, 金孝刚. 有机玻璃中条形药包爆炸破碎区发展过程的高速摄影研究 [J]. 爆炸与冲击, 1998, 18(3): 262–267. YAN S L, FENG S Y, JIN X G. Study on fracture region of cylindric exploding in PMMA by high speed photograph [J]. Explosion and Shock Waves, 1998, 18(3): 262–267.
[4]	龚敏, 黎剑华. 延长药包不同位置起爆时的应力场 [J]. 北京科技大学学报, 2002, 24(3): 248–253. DOI: 10.13374/j.issn1001-053x.2002.03.047. GONG M, LI J H. A research on stress field of column and strip-shaped charge in different detonated points [J]. Journal of University of Science and Technology Beijing, 2002, 24(3): 248–253. DOI: 10.13374/j.issn1001-053x.2002.03.047.
[5]	龚敏, 王德胜, 黎剑华. 全息干涉法在条形药包离面位移场研究中的应用 [J]. 爆炸与冲击, 2005, 25(3): 227–231. DOI: 10.11883/1001-1455(2005)03-0227-05. GONG M, WANG D S, LI J H. Application of holographic interferometry to study vertical displacement field in linear charge [J]. Explosion and Shock Waves, 2005, 25(3): 227–231. DOI: 10.11883/1001-1455(2005)03-0227-05.
[6]	郭洋, 李清, 杨仁树, 等. 三维模型柱状药包爆生裂纹扩展规律研究 [J]. 振动与冲击, 2020, 39(10): 133–140, 184. DOI: 10.13465/j.cnki.jvs.2020.10.018. GUO Y, LI Q, YANG R S, et al. Study on crack propagation law of cylindrical charges in three-dimensional models [J]. Journal of Vibration and Shock, 2020, 39(10): 133–140, 184. DOI: 10.13465/j.cnki.jvs.2020.10.018.
[7]	杨仁树, 郭洋, 李清, 等. 中间起爆柱状药包爆炸应力应变场演化规律 [J]. 煤炭学报, 2019, 44(11): 3423–3431. DOI: 10.13225/j.cnki.jccs.2018.1673. YANG R S, GUO Y, LI Q, et al. Evolution law on explosive stress and strain field of column charges at middle detonation position [J]. Journal of China Coal Society, 2019, 44(11): 3423–3431. DOI: 10.13225/j.cnki.jccs.2018.1673.
[8]	陈士海, 胡帅伟, 初少凤. 微差时间及柱状装药特征对爆破振动效应影响研究 [J]. 岩石力学与工程学报, 2017, 36(S2): 3974–3983. DOI: 10.13722/j.cnki.jrme.2017.1163. CHEN S H, HU S W, CHU S F. Study on the blasting vibration effect influenced by millisecond time and cylindrical charging characteristics [J]. Chinese Journal of Rock Mechanics and Engineering, 2017, 36(S2): 3974–3983. DOI: 10.13722/j.cnki.jrme.2017.1163.
[9]	李启月, 李夕兵, 范作鹏, 等. 深孔爆破一次成井技术与应用实例分析 [J]. 岩石力学与工程学报, 2013, 32(4): 664–670. DOI: 10.3969/j.issn.1000-6915.2013.04.003. LI Q Y, LI X B, FAN Z P, et al. One time deep hole raise blasting technology and case study [J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(4): 664–670. DOI: 10.3969/j.issn.1000-6915.2013.04.003.
[10]	杨国梁, 杨仁树, 姜琳琳. 轴向间隔装药爆破沿炮孔的压力分布 [J]. 爆炸与冲击, 2012, 32(6): 653–657. DOI: 10.11883/1001-1455(2012)06-0653-05. YANG G L, YANG R S, JIANG L L. Pressure distribution along borehole with axial air-deck charge blasting [J]. Explosion and Shock Waves, 2012, 32(6): 653–657. DOI: 10.11883/1001-1455(2012)06-0653-05.
[11]	胡涛, 李祥龙, 关思, 等. 分段装药结构爆破效果的数值模拟研究 [J]. 中国工程科学, 2014, 16(11): 36–41. DOI: 10.3969/j.issn.1009-1742.2014.11.005. HU T, LI X L, GUAN S, et al. Numerical simulation of structure performance under blasting with piecewise charge [J]. Strategic Study of CAE, 2014, 16(11): 36–41. DOI: 10.3969/j.issn.1009-1742.2014.11.005.
[12]	杨仁树, 鲍舟琦, 王雁冰, 等. 数码电子雷管在高瓦斯矿井岩巷爆破掘进中的应用 [J]. 金属矿山, 2022(7): 27–34. DOI: 10.19614/j.cnki.jsks.202207004. YANG R S, BAO Z Q, WANG Y B, et al. Application of digital electronic detonator in blasting excavation of rock roadway in high gas mine [J]. Metal Mine, 2022(7): 27–34. DOI: 10.19614/j.cnki.jsks.202207004.
[13]	杨仁树, 王雁冰, 张召冉, 等. 井巷工程掏槽爆破新技术及应用 [J]. 中国科学基金, 2022, 36(1): 120–127. DOI: 10.16262/j.cnki.1000-8217.2022.01.028. YANG R S, WANG Y B, ZHANG Z R, et al. New technology and application of cutting blasting in shaft and roadway engineering [J]. Bulletin of National Natural Science Foundation of China, 2022, 36(1): 120–127. DOI: 10.16262/j.cnki.1000-8217.2022.01.028.
[14]	GONZÁLES G L G, GONZÁLEZ J A O, DE CASTRO J T P, et al. Measuring elastoplastic strain loops in the near crack-tip region using a stereo microscope DIC system [J]. International Journal of Fatigue, 2020, 133: 105427. DOI: 10.1016/j.ijfatigue.2019.105427.
[15]	左进京, 杨仁树, 汪文良, 等. 条形药包爆炸全场应变以及裂纹动态断裂特性研究 [J]. 工程科学学报, 2022, 44(8): 1306–1314. DOI: 10.13374/j.issn2095-9389.2021.10.19.003. ZUO J J, YANG R S, WANG W L, et al. Explosive full-field strain and crack dynamic fracture characteristics of a linear shaped charge [J]. Chinese Journal of Engineering, 2022, 44(8): 1306–1314. DOI: 10.13374/j.issn2095-9389.2021.10.19.003.
[16]	JU Y, ZHENG J T, EPSTEIN M, et al. 3D numerical reconstruction of well-connected porous structure of rock using fractal algorithms [J]. Computer Methods in Applied Mechanics and Engineering, 2014, 279: 212–226. DOI: 10.1016/j.cma.2014.06.035.
[17]	CHEN H D, CHENG Y P, ZHOU H X, et al. Damage and permeability development in coal during unloading [J]. Rock Mechanics and Rock Engineering, 2013, 46(6): 1377–1390. DOI: 10.1007/s00603-013-0370-2.

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