Influences of cutting cavity depth on subsequent rock breaking properties of driving sections

CHENG Bing; YUAN Weiqi; WANG Quan; ZONG Qi; WANG Haibo; ZHENG Qiangqiang; LV Nao

doi:10.11883/bzycj-2025-0297

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CHENG Bing, YUAN Weiqi, WANG Quan, ZONG Qi, WANG Haibo, ZHENG Qiangqiang, LV Nao. Influences of cutting cavity depth on subsequent rock breaking properties of driving sections[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2025-0297

Citation:

CHENG Bing, YUAN Weiqi, WANG Quan, ZONG Qi, WANG Haibo, ZHENG Qiangqiang, LV Nao. Influences of cutting cavity depth on subsequent rock breaking properties of driving sections[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2025-0297

Citation:

CHENG Bing, YUAN Weiqi, WANG Quan, ZONG Qi, WANG Haibo, ZHENG Qiangqiang, LV Nao. Influences of cutting cavity depth on subsequent rock breaking properties of driving sections[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2025-0297

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Influences of cutting cavity depth on subsequent rock breaking properties of driving sections

doi: 10.11883/bzycj-2025-0297

CHENG Bing^{1, 2, 3
,},
YUAN Weiqi³,
WANG Quan^{3
,
,},
ZONG Qi²,
WANG Haibo²,
ZHENG Qiangqiang²,
LV Nao²

1.
State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, Anhui, China
2.
Engineering Research Center of Underground Mine Construction of Ministry of Education, Anhui University of Science and Technology, Huainan 232001, Anhui, China
3.
School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China

Received Date: 2025-09-09
Rev Recd Date: 2025-11-21

Available Online: 2025-11-21

Abstract

Abstract

Cutting blasting is a crucial step in underground blasting driving. To investigate the influences of cutting cavity depth on subsequent rock breaking properties, driving sections with different cutting cavities depths were simplified as sandstone specimens with different depths of cavities. A series of dynamic compression tests were conducted using a 50 mm diameter Split Hopkinson pressure bar (SHPB) testing system. Then, the dynamic peak stresses, dynamic peak strains, energy dissipation characteristics, and fracture patterns of the specimens were analyzed as the cavity depth varied, and the field cutting blasting parameters were optimized accordingly. The results demonstrate significant trends for sandstone specimens with cavity diameters of 10 and 20 mm. As the cavity depth increases, the dynamic peak stress decreases by 17.69 % and 39.05 %, the dynamic peak strain increases by 7.58% and 18.56%, the dissipation energy increases by 22.87% and 45.92%, the dissipation energy density increases by 26.92% and 73.08%, respectively. And the specimens fragmentation size also gradually decreases with the extension of cavity depth. These findings indicate that increasing cutting cavity depth could reduce the rock mass resistance to failure, enhance its deformation capacity and energy utilization efficiency, and improve its fragmentation effects. When the cavity diameter is 20 mm, the dynamic mechanical properties and energy dissipation characteristics of the specimens change at a faster rate with the increase of cavity depth, and the fragmentation size is smaller. This indicates that increasing the cutting cavity diameter is also beneficial for rock breaking. The cutting blasting technique with inner-hole and outer-hole composite delays is adopted, which can increase the cavity depth and diameter to provide sufficient free surfaces for subsequent blasting process. This optimization achieved remarkable filed performance that increasing the cycle advance and hole utilization rate of the full-section blasting into 5.0 m and 96.1%, and ensuring uniform and reasonable rock fragmentation degree. The research findings not only effectively reveal the influences of cutting cavity depth on the full-section rock breaking effects, but also provide theoretical supports and practical references for the design optimization of actual cutting blasting projects.
- cutting blasting,
- cutting cavity depth,
- SHPB experiments,
- rock breaking properties,
- field tests

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References(29)

References

[1]	杨仁树, 李成孝, 陈骏, 等. 我国煤矿岩巷爆破掘进发展历程与新技术研究进展 [J]. 煤炭科学技术, 2023, 51(1): 224–241. DOI: 10.13199/j.cnki.cst.2022-1804. YANG R S, LI C X, CHEN J, et al. Development history and new technology research progress of rock roadway blasting excavation in coal mines in China [J]. Coal Science and Technology, 2023, 51(1): 224–241. DOI: 10.13199/j.cnki.cst.2022-1804.
[2]	王勉, 王建国, 马军, 等. 小断面巷道精确延时逐孔起爆技术 [J]. 兵工学报, 2025, 46(3): 240418. DOI: 10.12382/bgxb.2024.0418. WANG M, WANG J G, MA J, et al. Precise delay hole-by-hole detonation technology for small section roadway [J]. Acta Armamentarii, 2025, 46(3): 240418. DOI: 10.12382/bgxb.2024.0418.
[3]	丁晨曦, 梁欣桐, 杨仁树, 等. 高地应力巷道掏槽爆破的应力演化与损伤破裂研究 [J]. 煤炭科学技术, 2024, 52(7): 79–88. DOI: 10.12438/cst.2023-0852. DING C X, LIANG X T, YANG R S, et al. Study on stress evolution and damage fracture of cut blasting in high in-situ stress roadway [J]. Coal Science and Technology, 2024, 52(7): 79–88. DOI: 10.12438/cst.2023-0852.
[4]	关振长, 朱凌枫, 俞伯林. 隧道掘进排孔爆破的精细化数值模拟 [J]. 振动与冲击, 2021, 40(11): 154–162. DOI: 10.13465/j.cnki.jvs.2021.11.022. GUAN Z C, ZHU L F, YU B L. Fine numerical simulation of row-hole blasting in tunnel excavation [J]. Journal of Vibration and Shock, 2021, 40(11): 154–162. DOI: 10.13465/j.cnki.jvs.2021.11.022.
[5]	龚敏, 文斌, 王华. 掏槽参数对煤矿岩巷爆破效果的影响 [J]. 爆炸与冲击, 2015, 35(4): 576–584. DOI: 10.11883/1001-1455(2015)04-0576-09. GONG M, WEN B, WANG H. Influences of cut parameters on blasting effect in rock roadway of coal mine [J]. Explosion and Shock Waves, 2015, 35(4): 576–584. DOI: 10.11883/1001-1455(2015)04-0576-09.
[6]	王雁冰, 孔维文, 王国豪, 等. 深孔掏槽超深爆破破岩机制及最佳超深值研究 [J]. 采矿与安全工程学报, 2023, 40(6): 1210–1218. DOI: 10.13545/j.cnki.jmse.2022.0122. WANG Y B, KONG W W, WANG G H, et al. Mechanism of rock breaking by deep hole ultra-deep cut blasting and the optimum ultra-deep value determination [J]. Journal of Mining and Safety Engineering, 2023, 40(6): 1210–1218. DOI: 10.13545/j.cnki.jmse.2022.0122.
[7]	李祥龙, 张志平, 王建国, 等. 双空孔间距对爆破槽腔断面大小的影响 [J]. 爆炸与冲击, 2022, 42(11): 115201. DOI: 10.11883/bzycj-2021-0471. LI X L, ZHANG Z P, WANG J G, et al. Influence of double empty hole spacing on section size of blasting chamber [J]. Explosion and Shock Waves, 2022, 42(11): 115201. DOI: 10.11883/bzycj-2021-0471.
[8]	GAO P F, ZONG Q, CHENG B, et al. Investigation on cutting blasting efficiency of hard rock tunnels under different charge diameters [J]. Applied Sciences, 2022, 12(19): 9906. DOI: 10.3390/APP12199906.
[9]	HUO X F, SHI X Z, QIU X Y, et al. Rock damage control for large-diameter-hole lateral blasting excavation based on charge structure optimization [J]. Tunnelling and Underground Space Technology, 2020, 106: 103569. DOI: 10.1016/j.tust.2020.103569.
[10]	程兵, 汪海波, 程扬帆, 等. 不同管材侧向环形切缝装药爆炸能量传递特性 [J]. 含能材料, 2024, 32(9): 921–929. DOI: 10.11943/CJEM2023266. CHENG B, WANG H B, CHENG Y F, et al. Transfer characteristics of explosion energy released by the charge confined to tubes of different materials with lateral annular slits [J]. Chinese Journal of Energetic Materials, 2024, 32(9): 921–929. DOI: 10.11943/CJEM2023266.
[11]	程兵, 汪泉, 汪海波, 等. 侧向环形切缝装药爆破效应及其在硬岩掏槽中的应用 [J]. 含能材料, 2023, 31(12): 1245–1254. DOI: 10.11943/CJEM2023208. CHENG B, WANG Q, WANG H B, et al. Blasting effects and of lateral annular slit charge and application in hard rock cutting [J]. Chinese Journal of Energetic Materials, 2023, 31(12): 1245–1254. DOI: 10.11943/CJEM2023208.
[12]	程兵, 叶福, 汪泉, 等. 孔内分层装药爆破破岩成腔机理及应用 [J]. 含能材料, 2025, 33(7): 714–724. DOI: 10.11943/CJEM2025040. CHENG B, YE F, WANG Q, et al. Mechanisms of rock breaking and cavity formation of hole-inner layered charge blasting [J]. Chinese Journal of Energetic Materials, 2025, 33(7): 714–724. DOI: 10.11943/CJEM2025040.
[13]	ZHANG H, LI T C, DU Y T, et al. Theoretical and numerical investigation of deep-hole cut blasting based on cavity cutting and fragment throwing [J]. Tunnelling and Underground Space Technology, 2021, 111: 103854. DOI: 10.1016/j.tust.2021.103854.
[14]	高启栋, 靳军, 王亚琼, 等. 隧道掏槽爆破中起爆点位置对爆炸能量传输的影响作用及其比选研究 [J]. 中国公路学报, 2022, 35(5): 140–152. DOI: 10.19721/j.cnki.1001-7372.2022.05.013. GAO Q D, JIN J, WANG Y Q, et al. Study on influence law of initiation position on transmission of explosion energy and its comparison and selection in tunnel cutting blasting [J]. China Journal of Highway and Transport, 2022, 35(5): 140–152. DOI: 10.19721/j.cnki.1001-7372.2022.05.013.
[15]	CARDU M, SECCATORE J. Quantifying the difficulty of tunnelling by drilling and blasting [J]. Tunnelling and Underground Space Technology, 2016, 60: 178–182. DOI: 10.1016/j.tust.2016.08.010.
[16]	杨仁树, 丁晨曦, 杨立云, 等. 岩石爆破基础理论研究进展 [J]. 工程爆破, 2024, 30(5): 11–19. DOI: 10.19931/j.EB.20240195. YANG R S, DING C X, YANG L Y, et al. Research progress on the fundamental theory of rock blasting [J]. Engineering Blasting, 2024, 30(5): 11–19. DOI: 10.19931/j.EB.20240195.
[17]	杨阳, 杨仁树, 陈骏, 等. 岩石爆破基础理论研究进展与展望Ⅰ—本构关系 [J]. 工程科学学报, 2024, 46(11): 1931–1947. DOI: 10.13374/j.issn2095-9389.2024.06.02.003. YANG Y, YANG R S, CHEN J, et al. Advancements and future prospects in the fundamental theories of rock blasting research Ⅰ — constitutive relationships [J]. Chinese Journal of Engineering, 2024, 46(11): 1931–1947. DOI: 10.13374/j.issn2095-9389.2024.06.02.003.
[18]	李冉鑫, 陈骏, 李成孝, 等. 煤矿巷道相似掏槽爆破技术原理与实验验证 [J]. 煤炭学报, 2025, 50(S1): 74–86. DOI: 10.13225/j.cnki.jccs.2024.0928. LI R X, CHEN J, LI C X, et al. Principles and experimental verification of similar cut-and-fill blasting technology in coal mine tunnels [J]. Journal of China Coal Society, 2025, 50(S1): 74–86. DOI: 10.13225/j.cnki.jccs.2024.0928.
[19]	CHANDRAKAR S, PAUL P S, SAWMLIANA C. Influence of void ratio on “Blast Pull” for different confinement factors of development headings in underground metalliferous mines [J]. Tunnelling and Underground Space Technology, 2021, 108: 103716. DOI: 10.1016/j.tust.2020.103716.
[20]	章逸锋, 李洪超, 张智宇, 等. 角柱形垂直掏槽爆破参数研究 [J]. 地下空间与工程学报, 2024, 20(1): 31–41. DOI: 10.20174/j.juse.2024.01.004. ZHANG Y F, LI H C, ZHANG Z Y, et al. Research on blasting parameters of prism vertical cutting [J]. Chinese Journal of Underground Space and Engineering, 2024, 20(1): 31–41. DOI: 10.20174/j.juse.2024.01.004.
[21]	陶子豪, 李祥龙, 胡启文, 等. 掏槽爆破成腔空孔效应数值模拟研究与分析 [J]. 兵工学报, 2024, 45(12): 4246–4258. DOI: 10.12382/bgxb.2024.0250. TAO Z H, LI X L, HU Q W, et al. Study and analysis on numerical simulation of empty hole effect induced by cutting blasting [J]. Acta Armamentarii, 2024, 45(12): 4246–4258. DOI: 10.12382/bgxb.2024.0250.
[22]	汪海波, 宗琦, 赵要才. 立井大直径中空孔直眼掏槽爆炸应力场数值模拟分析与应用 [J]. 岩石力学与工程学报, 2015, 34(S1): 3223–3229. DOI: 10.13722/j.cnki.jrme.2014.0296. WANG H B, ZONG Q, ZHAO Y C. Numerical analysis and application of large diameter cavity parallel cut blasting stress field in vertical shaft [J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S1): 3223–3229. DOI: 10.13722/j.cnki.jrme.2014.0296.
[23]	王梦想, 汪海波, 宗琦. 煤矿泥岩冲击动态力学特性与破裂破碎特征分析 [J]. 振动与冲击, 2019, 38(4): 137–143. DOI: 10.13465/j.cnki.jvs.2019.04.022. WANG M X, WANG H B, ZONG Q. Analysis dynamic mechanical characteristics and fracture breaking characteristics of coal mine mudstone [J]. Journal of Vibration and Shock, 2019, 38(4): 137–143. DOI: 10.13465/j.cnki.jvs.2019.04.022.
[24]	张硕彦, 蒋楠, 姚颖康, 等. 冻结砂岩冲击及爆破破岩能量耗散等效模型研究 [J]. 岩石力学与工程学报, 2024, 43(5): 1255–1269. DOI: 10.13722/j.cnki.jrme.2023.0964. ZHANG S Y, JIANG N, YAO Y K, et al. Equivalent modeling of energy dissipation in impact and rock blasting fragmentation of frozen sandstone [J]. Chinese Journal of Rock Mechanics and Engineering, 2024, 43(5): 1255–1269. DOI: 10.13722/j.cnki.jrme.2023.0964.
[25]	李地元, 刘濛, 韩震宇, 等. 含孔洞层状砂岩动态压缩力学特性试验研究 [J]. 煤炭学报, 2019, 44(5): 1349–1358. DOI: 10.13225/j.cnki.jccs.2019.6027. LI D Y, LIU M, HAN Z Y, et al. Dynamic compressive mechanical properties of bedding sandstone with pre-existing hole [J]. Journal of China Coal Society, 2019, 44(5): 1349–1358. DOI: 10.13225/j.cnki.jccs.2019.6027.
[26]	王浩, 宗琦, 汪海波, 等. 不同应变率下饱水凝灰岩压缩力学特性及破裂破碎特征研究 [J]. 采矿与安全工程学报, 2023, 40(3): 611–620. DOI: 10.13545/j.cnki.jmse.2022.0444. WANG H, ZONG Q, WANG H B, et al. Research on compressive mechanical properties and fracture characteristics of water-saturated tuff at different strain rates [J]. Journal of Mining and Safety Engineering, 2023, 40(3): 611–620. DOI: 10.13545/j.cnki.jmse.2022.0444.
[27]	段继超, 宗琦, 高朋飞, 等. 干湿动载耦合作用下石灰岩宏细观复合损伤模型研究 [J]. 中国公路学报, 2025, 38(3): 264–277. DOI: 10.19721/j.cnki.1001-7372.2025.03.020. DUAN J C, ZONG Q, GAO P F, et al. Limestone macro composite damage model under dry and wet load coupling [J]. China Journal of Highway and Transport, 2025, 38(3): 264–277. DOI: 10.19721/j.cnki.1001-7372.2025.03.020.
[28]	王雁冰, 张瑶瑶, 聂俊文, 等. 冲击荷载下含孔洞砂岩的力学特性 [J]. 采矿与岩层控制工程学报, 2023, 5(1): 013024. DOI: 10.13532/j.jmsce.cn10-1638/td.20221212.001. WANG Y B, ZHANG Y Y, NIE J W, et al. Mechanical properties of sandstone with holes under impact load [J]. Journal of Mining and Strata Control Engineering, 2023, 5(1): 013024. DOI: 10.13532/j.jmsce.cn10-1638/td.20221212.001.
[29]	周俊, 赵光明, 孟祥瑞, 等. 高径比差异2种岩石动态特性及破裂形态研究 [J/OL]. 岩石力学与工程学报, (2025-06-18)[2025-09-09]. https://link.cnki.net/urlid/42.1397.o3.20250617.1609.001. ZHOU J, ZHAO G M, MENG X R, et al. Study on dynamic characteristics and fracture morphology of two rocks with different length to diameter ratio [J/OL]. Chinese Journal of Rock Mechanics and Engineering, (2025-06-18)[2025-09-09]. https://link.cnki.net/urlid/42.1397.o3.20250617.1609.001.