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Journal articles on the topic 'Water blasting'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Ding, Chenxi, Renshu Yang, Zhen Lei, Cheng Chen, and Changda Zheng. "Experimental Study on Blasting Energy Distribution and Utilization Efficiency Using Water Jet Test." Energies 13, no. 20 (2020): 5340. http://dx.doi.org/10.3390/en13205340.

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The blasting stress wave and blasting gas generated by explosive blasting are the two main motive powers of rock fragmentation. An experimental method based on water jet test is used to study the energy distribution ratio of blasting stress wave and blasting gas; the utilization efficiency of blasting energy under different borehole constraint conditions is also analyzed. It proves that the blasting stress wave does not cause the water jet, and the blasting gas is the only power of the water column jet. The results show that the energy of the blasting gas and blasting stress wave respectively

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2

Xia, Wenjun, Wenbo Lu, Ruize Li, Ming Chen, and Zhen Lei. "Effect of Water-Decked Blasting on Rock Fragmentation Energy." Shock and Vibration 2020 (June 25, 2020): 1–11. http://dx.doi.org/10.1155/2020/8194801.

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Fragmentation energy ratio is an important index to evaluate whether an explosive is used efficiently. This paper discusses the effect of water-decked blasting on fragmentation energy based on theory and numerical simulation, and three blasting tests were performed to measure the actual fragmentation energy at a granite-based field. Results show that at the same charge amount, the maximum borehole pressure of water-decked blasting is much greater than that of normal blasting in theory, which facilitates rock breaking. In numerical simulation, water-decked blasting is more beneficial to the tra

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3

Yang, J. X., and C. Y. Liu. "Experimental Study and Engineering Practice of Pressured Water Coupling Blasting." Shock and Vibration 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/5484598.

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Overburden strata movement in large space stope is the major reason that induces the appearance of strong mining pressure. Presplitting blasting for hard coal rocks is crucial for the prevention and control of strong pressure in stope. In this study, pressured water coupling blasting technique was proposed. The process and effect of blasting were analyzed by orthogonal test and field practice. Results showed that the presence of pressure-bearing water and explosive cartridges in the drill are the main influence factors of the blasting effect of cement test block. The high load-transmitting per

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4

Liu, Yong Sheng, Jian Guo Peng, Jing Hua Zhang, and Li Xin Fu. "Mechanism of Water Inflow of Subsea Tunnel Induced by Blasting Excavation." Applied Mechanics and Materials 353-356 (August 2013): 1566–71. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1566.

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Water inflow was the main damage during blasting excavation of subsea tunnel, disturbance due to blasting could also induce water inflow. Based on the blasting mechanism of water-bearing fractured rock-mass, stress state and breaking-down process of the fracture was analyzed, which was affected by dynamic stress field (blasting effect) and static stress field (water and in-situ stress). With the affect of overlapping dynamic and static stress field, the calculation formula of the critical inner water pressure in water inflow was presented. At last, using these formulas, critic water press and

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5

Appleman, Bernard R. "Evaluation of Wet Blasting for Ship Application." Journal of Ship Production 2, no. 04 (1986): 245–49. http://dx.doi.org/10.5957/jsp.1986.2.4.245.

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This paper presents the results of a field investigation of equipment and technology for wet abrasive blasting as a technique for preparation of structural steel for painting. Ten different commercially available wet blasting units were selected for field evaluation. The units selected included the following generic types: air abrasive wet blasting (addition of water at the nozzle to conventional dry blasting equipment); air/water/abrasive slurry blasting (mixing of water with the abrasive at a control unit upstream of the nozzle); pressurized water abrasive blasting (abrasive added to high-or

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6

Wu, Liang, Zhijian Liang, Ming Chen, and Junru Zhou. "Experiments and Fluent–Engineering Discrete Element Method-Based Numerical Analysis of Block Motion in Underwater Rock-Plug Blasting." Applied Sciences 13, no. 1 (2022): 348. http://dx.doi.org/10.3390/app13010348.

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Underwater rock-plug blasting is a special blasting technique for excavating underwater inlets. In the process of rock-plug blasting excavation, the blasting-block movement from the difference in water pressure inside and outside the tunnel is one of the key factors for successful construction. Laboratory underwater rock-plug blasting experiments were conducted using small explosive charges, and a high-speed camera was adopted to observe and study block motion. Then, numerical simulations were conducted for the model experiment based on the Fluent and Engineering Discrete Element Method (EDEM)

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7

Wang, Qingbiao, Xu Zhang, Bin Gong, et al. "Study and Application of Rock Breaking Mechanism of Concentrated Water Hydraulic Smooth Blasting in Broken Sand-Stone Geological Conditions." Shock and Vibration 2022 (April 1, 2022): 1–16. http://dx.doi.org/10.1155/2022/4999800.

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The use of polyenergy water pressure controlled blasting technology in tunnel construction is gradually being promoted, and the technology is often used in hard rock, and the mechanism of rock breaking in fractured sandstone strata is still lacking systematic research. The above mechanism was investigated using a combination of field experiments and ANSYS/LS-DYNA numerical simulation, and the results showed the following: (1) In the case of joint-hole blasting, the concentrating jet formed by the concentrating tube can effectively achieve controlled directional blasting of fractured sandstone.

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8

Wang, Xiao Chuan, Yong Kang, and Xiao Feng Yang. "Experiment of Control Blasting with Water Jets Slotting." Advanced Materials Research 629 (December 2012): 558–63. http://dx.doi.org/10.4028/www.scientific.net/amr.629.558.

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Use similar material and system of caustics to simulate the characteristics of fissure distribution and dynamic vacation regulations of fissure generation and expansion, whose fissure is made by plexiglass jet slotting and blasting under the condition of explosion. We have analyzed and compared the expanding length and velocity of main fissure’s point and dynamic intensity factors between the holes of ordinary blasting and water-jet slotting; and discussed the dynamic effects of slotting blasting. The study shows that, with the same explosive quantity, the fissures of common blasting hole dist

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9

Liu, Jiang-chao, and Wen-xue Gao. "Vibration Signal Analysis of Water Seal Blasting Based on Wavelet Threshold Denoising and HHT Transformation." Advances in Civil Engineering 2020 (March 9, 2020): 1–14. http://dx.doi.org/10.1155/2020/4381480.

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The blasting vibration signal obtained from tunnel construction monitoring is affected by the external environment, which contains a lot of noise that causes distortion during signal processing. To analyse the blasting vibration signal and determine the appropriate water seal blasting charge structure for construction, combined with wavelet threshold denoising method and HHT transformation, the blasting vibration signals of the four charge structures of conventional charge, water interval charge at both ends, water interval charge at the orifice, and water interval charge at the hole bottom ar

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10

Brahimaj, Frashër, Izet Zeqiri, Risto Dambov, and Shkurte Brahimaj. "IMPACT OF DRILLING ANGLE ON BLASTING COSTS IN SURFACE WORKS." Rudarsko-geološko-naftni zbornik 37, no. 4 (2022): 71–81. http://dx.doi.org/10.17794/rgn.2022.4.6.

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The removal of rock masses or their use with surface exploitation requires that this work be done at the lowest possible cost. The reduction of operating costs is done by analyzing each work action, working method, and the possibility of changing them, to have an impact on reducing costs. The drilling angle is one of the most important factors during surface exploitation by blasting. By changing the drilling angle, we achieve a reduction of the total drilling length, to have a reduction of the amount of explosives and other changes during the blasting process which do not greatly affect the co

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11

Wenbin, Gu, Chen Jianghai, Wang Zhenxiong, Wang Zhihua, Liu Jianqing, and Lu Ming. "Experimental Study on the Measurement of Water Bottom Vibration Induced by Underwater Drilling Blasting." Shock and Vibration 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/496120.

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Due to the lack of proper instrumentations and the difficulties in underwater measurements, the studies about water bottom vibration induced by underwater drilling blasting are seldom reported. In order to investigate the propagation and attenuation laws of blasting induced water bottom vibration, a water bottom vibration monitor was developed with consideration of the difficulties in underwater measurements. By means of this equipment, the actual water bottom vibration induced by underwater drilling blasting was measured in a field experiment. It shows that the water bottom vibration monitor

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12

Liang, Jiahao. "Rock fragmentation mechanism and engineering application by shaped water pressure smooth blasting." Materials Express 12, no. 3 (2022): 412–25. http://dx.doi.org/10.1166/mex.2022.2173.

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In recent years, various regions are vigorously promoting road infrastructure construction, and the tunnel is one of the essential ways of road infrastructure in mountainous areas, but the traditional smooth blasting has problems such as large disturbance of surrounding rock, easy to exceed and underdog, high dust concentration, etc., which delays the construction process of tunnel drilling, time-consuming and laborious. To solve these problems, this paper, relying on the newly built Guantian tunnel project of the ZJHZQ-9 section of Zhangjiajie to Jishou-Huaihua railway Project, studied the st

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13

Liu, Chengwei, Binwei Xia, Yiyu Lu, and Yugang Gao. "Experimental Study on Quasi-Static Pressure of Slot Hydraulic Blasting." Shock and Vibration 2018 (December 16, 2018): 1–8. http://dx.doi.org/10.1155/2018/6584634.

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Air is commonly used as the noncoupling borehole medium in directional slot blasting where the quasi-static pressure is small, the energy utilization rate of the explosive is low, and the breaking efficiency of the coal-rock mass is not high. This study investigates the effect of quasi-static pressure on crack propagation in closed-field blasting. Crack length propagation in the quasi-static pressure stage accounts for more than 60% of the total crack length. Water is therefore proposed as the noncoupling medium of the slotting borehole to increase the quasi-static pressure. A series of experi

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14

Wang, Wei, Xianqi Xie, Fang Yuan, et al. "Influence of a Frame Structure Building Demolition on an Adjacent Subway Tunnel: Monitoring and Analysis." Buildings 14, no. 12 (2024): 3974. https://doi.org/10.3390/buildings14123974.

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In a complex urban environment, the impact of building demolitions by blasting on the structural integrity of nearby metro tunnels is critical. This study systematically analyzed the blasting and demolition process of a building adjacent to a metro tunnel using various monitoring methods, including blasting vibration, dynamic strain, deformation and settlement, pore water pressure, and displacement. The results indicate that the metro tunnel’s vibration response can be divided into four stages: notch blasting, notch closure, overall collapse impact, and auxiliary notch blasting. The most signi

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15

Men, Yanqing, Zixuan Zhang, Jing Wang, et al. "Numerical Analysis Method of Water Inrush During Blasting in Water-Resistant Rock Mass Tunnels Based on FEM-SPH Coupling Algorithm." Buildings 15, no. 11 (2025): 1765. https://doi.org/10.3390/buildings15111765.

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In recent years, geological disasters such as water inrush during drilling and blasting operations have posed significant challenges in tunnel engineering. This paper presents a novel continuous-discrete coupling method based on LS-DYNA, combining the finite element method (FEM) and smoothed particle hydrodynamics (SPH), to simulate the water inrush phenomenon in blasting engineering. The proposed FEM-SPH model effectively captures the propagation of explosion shock waves, simulates small deformation areas with solid grids, and models water behavior using SPH. This study systematically investi

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16

Gu, Wenbin, Zhenxiong Wang, Jianghai Chen, Jianqing Liu, and Ming Lu. "Experimental and Theoretical Study on Influence of Different Charging Structures on Blasting Vibration Energy." Shock and Vibration 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/248739.

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As an important parameter in blasting design, charging structure directly influences blasting effect. Due to complex conditions of this blasting and excavating engineering in Jiangsu, China, the authors carried out comparative researches with coupling structure, air-decoupling structure, and water-decoupling structure. After collecting, comparing, and analyzing produced signals on blasting vibration, the authors summarized that when proportional distances are the same, water-decoupling structure can reduce instantaneous energy of blasting vibration more effectively with more average rock fragm

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17

Gu, Wenbin, Zhenxiong Wang, Jianqing Liu, Jinglin Xu, Xin Liu, and Tao Cao. "Water-Depth-Based Prediction Formula for the Blasting Vibration Velocity of Lighthouse Caused by Underwater Drilling Blasting." Shock and Vibration 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/7340845.

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Lighthouses are the most important hydraulic structures that should be protected during underwater drilling blasting. Thus, the effect of blasting vibration on lighthouse should be studied. On the basis of the dimensional analysis, we deduced a revised formula for water depth based on Sodev’s empirical formula and established the linear fitting model. During the underwater reef project in the main channel of Shipu Harbor in the Ningbo–Zhoushan Port, the blasting vibration data of the lighthouse near the underwater blasting area were monitored. The undetermined coefficient, resolvable coefficie

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18

Duan, Ya, Xuemin Zhang, Xianshun Zhou, and Xuefeng Ou. "Research on the Mechanism and Safe Thickness of Karst Tunnel-Induced Water Inrush under the Coupling Action of Blasting Load and Water Pressure." Applied Sciences 12, no. 23 (2022): 11891. http://dx.doi.org/10.3390/app122311891.

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When the drilling and blasting method is used to construct a tunnel through the karst stratum, the coupling effect of the blasting load and the karst water pressure in front of the tunnel face exposes the tunnel face to the risk of water inrush, which threatens the safety of personnel and property. It is very important for the design and construction of related tunnels to study the evolution mechanism of water inrush in karst tunnels and determine the minimum thickness of outburst prevention under blasting. Relying on the Dejiang tunnel Project in Tongren City, this paper adopts the Smoothed P

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19

Liu, Rentai, Yankai Liu, Dongdong Xin, et al. "Prediction of Water Inflow in Subsea Tunnels under Blasting Vibration." Water 10, no. 10 (2018): 1336. http://dx.doi.org/10.3390/w10101336.

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The subsea tunnel of Qingdao metro line 1 has been excavated using the drill and blast method. Blasting vibration during tunneling may cause larger water inflow and even severe security risks and considerable economic losses. However, the prediction of water inflow in subsea tunnels under blasting vibration still remains a challenging problem. Thus, this paper proposes an approach combining tests and numerical calculations for analyzing this problem. The approach is developed by analyzing the mechanical and deformation characteristics of the surrounding rock through a laboratory triaxial compr

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20

Van Dam, Jim. "High-Pressure Water Jetting." CoatingsPro 6, no. 5 (2006): 24–26. https://doi.org/10.5006/cp2006_6_5-24.

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21

Mu, Gui Qing, Ji Fei Wang, and Shu Ran Lv. "Experimental Analyze of Blasting Effects on Dry-Beach in Abandoned Tailings Dam." Applied Mechanics and Materials 501-504 (January 2014): 193–99. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.193.

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In order to study liquefaction and failure law of the tailings under the action of blasting vibration, series blasting experiments were done in dry beaches of a small abandoned tailings dam. The explosives was buried in the tailings dry beach face, blasting created blasting crater and arc shaped cracks, and accompanied by sand boil and water eruption. By installing blasting vibration velocity and acceleration sensors on tailings dam dry beach to measure corresponding blasting vibration velocity and acceleration, regression analyses on experimental data, the blasting vibration velocity and acce

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22

Cui, Zhen-Dong, Li Yuan, and Chun-Ling Yan. "Water–silt composite blasting for tunneling." International Journal of Rock Mechanics and Mining Sciences 47, no. 6 (2010): 1034–37. http://dx.doi.org/10.1016/j.ijrmms.2010.06.004.

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23

Smith, L. B., W. G. Notenboom, M. Campbell, S. Cheema, and T. Smyth. "Pangnirtung water reservoir: geotechnical aspects." Canadian Geotechnical Journal 26, no. 3 (1989): 335–47. http://dx.doi.org/10.1139/t89-048.

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This paper outlines the geotechnical aspects associated with the design and construction of an earthworks water reservoir excavated in ice-rich permafrost in the community of Pangnirtung, N.W.T. The reservoir was constructed by blasting, excavating, and placing frozen silty sand to form the reservoir berms during the winter. The work involved the excavation of about 140 000 m3 of material. The paper outlines the major geotechnical concerns identified during design and the measures used to deal with them. Observations made during subsequent construction of the reservoir are presented. Key words

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24

Jiang, Nan, Yuqi Zhang, Tingyao Wu, Yingkang Yao, and Xuedong Luo. "Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line." Sensors 21, no. 21 (2021): 7252. http://dx.doi.org/10.3390/s21217252.

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A key aspect of urban blasting engineering is evaluating the safety of the blasting dynamic load on the adjacent high-density polyethylene water supply pipeline and controlling the negative impact of the blasting vibration load on the pipeline. According to the special characteristics of the soil layer in Shenzhen coastal city, a field blasting test of a full-scale pre-buried HDPE pipeline was carried out, and the distribution characteristics of the blasting vibration velocity and dynamic strain were analyzed. The finite element model was established by LSDYNA, and the reliability of the calcu

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25

Duan, Haixia, Benna Da, Chunyu Na, and Qiong Bai. "Study on rock crushing effect of uncoupled charge in different media based on numerical simulation." Journal of Physics: Conference Series 2951, no. 1 (2025): 012099. https://doi.org/10.1088/1742-6596/2951/1/012099.

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Abstract In this paper, based on the finite element numerical simulation, the influence of uncoupled charge on rock blasting effect under the condition of water and air is studied. The results show that the stress wave propagation speed of the air medium uncoupled charge is faster, and the stress fluctuation is larger in the early stage of blasting. The water medium uncoupled charge is more effective in energy transfer and crack formation. This shows that the decoupling charge of water medium can improve the energy utilization rate of explosives, reduce the vibration caused by excessive crushi

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26

Zhu, Zhe Ming. "The Response of Defects Containing Water under Dynamic Loads." Advanced Materials Research 225-226 (April 2011): 933–36. http://dx.doi.org/10.4028/www.scientific.net/amr.225-226.933.

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A crater blasting model of rock with pre-existing defects under blasting loads is established by using finite difference method. The defects are saturated with water and are randomly distributed. The defects include voids, pores and small open joints. A shock equation of state (EOS), obtained from the existing test results, is employed for the granite near the explosive charge, and for the granite far from the charge, a linear EOS is applied. A modified principal stress failure criterion is applied to determining the granite statuses. The granite dynamic strengths, which increase with strain r

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27

Zhu, Zhi Wu, and Yi Li. "Experimental Study of Fracture Controlled Blasting." Applied Mechanics and Materials 29-32 (August 2010): 101–6. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.101.

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A new method of fracture controlled blasting was put forward—using different coupling medium (water and gas) within the hole at the same time. The paper studies the pressure of hole wall about the hydraulic pressure blasting and gas decoupling blasting by system experiment, and compares the strain with damage on different medium directions after blasting, which reflected the suffering force and distortion of medium. The blasting method can control the process of energy releasing and direction effectively, which makes it possible to destroy one side of the wall rock and protect the other side a

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28

Zhang, Quan, Jiong Wang, Shan Guo, et al. "Shaped Charge Hydraulic Blasting: An Environmental, Safe, and Economical Method of Directional Roof Cutting." Geofluids 2021 (March 13, 2021): 1–20. http://dx.doi.org/10.1155/2021/5511081.

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Shaped charge blasting (SCB)—a directional fracture blasting technology—has the disadvantages of low safety, harmful gas, and dust emissions. This study proposes a new type of directional rock-breaking technology called shaped charge hydraulic blasting (SCHB) that uses water as the blasting medium instead of air. To verify the effectiveness of the new method, we performed a theoretical analysis. Twelve groups of on-site directional roof-cutting tests were carried out on SCB and SCHB for comparison in a coal mine. The results showed that, although both blasting methods achieved the goal of dire

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Li, Jia Rong, Feng Li Sun, Ji Chun Xiong, Shi Zhong Liu, and Mei Han. "Effects of Surface Recrystallization on the Microstructures and Creep Properties of Single Crystal Superalloy DD6." Materials Science Forum 638-642 (January 2010): 2279–84. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.2279.

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This work assesses the effects of the surface recrystallization of the processing of water grit blasting, grit blasting and mechanically polishing on the microstructures and creep rupture properties of DD6 alloy, a low-cost second generation single crystal superalloy. The results demonstrate that the possibility and the depth of the surface recrystallization of DD6 show an increase as the annealing temperature increases from 1050°C to 1250°C. No surface recrystallization happens when the specimens of the alloy have been undergone at 1100°C for 4 hours after water grit blasting, but the surface

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Qiu, Xianyang, Xiuzhi Shi, Shu Zhang, Bo Liu, and Jian Zhou. "Experimental Study on the Blasting Performance of Water-Soil Composite Stemming in Underground Mines." Advances in Materials Science and Engineering 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/3523509.

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Top stemming is necessary to stop the explosive energy from escaping through the upper part of blast-holes in cutting blasts of large-diameter deep-hole blasting in underground mines. The often-used single soil stemming frequently leads to material clogging which results in reduction of blasting efficiency. In this paper, a new water-soil composite stemming is proposed to solve the problem. A series of small-scale tests were conducted on solid concrete masonry blocks to investigate the effect of top stemming material and stemming length on blasting performance. The experimental results indicat

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Ye, Zhouyuan, Kun Pan, and Zhihua Zhou. "Onsite Tests and Numerical Simulation of Broken Rock Zones in Surrounding Rocks of Seepage Roadways under Blasting." Geofluids 2020 (December 19, 2020): 1–8. http://dx.doi.org/10.1155/2020/8893449.

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To study the influence of blasting vibration on the broken rock zone around a seepage roadway and provide guidance for design of the roadway support, the broken rock zones around rock of seepage roadways under production blasting vibration are determined by onsite tests in a mining area, Daye iron mine. During the testing process, it is found that blasting vibration causes internal cracks of surrounding rocks to initiate and develop, the fracture density increases, the acoustic wave velocity of rock mass decreases, and the broken rock zones expand. At the same time, through onsite observation,

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Zhou, Xian-qi, Jin Yu, Jin-bi Ye, Shi-yu Liu, Ren-guo Liao, and Xiu-wen Li. "Complex Modeling of the Effects of Blasting on the Stability of Surrounding Rocks and Embankment in Water-Conveyance Tunnels." Complexity 2018 (August 12, 2018): 1–19. http://dx.doi.org/10.1155/2018/4654315.

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Blasting in water-conveyance tunnels that cross rivers is vital for the safety and stability of embankments. In this work, a tunnel project that crosses the Yellow River in the north district of the first-phase Eastern Line of the South-to-North Water Diversion Project was selected as the research object. A complex modeling and numerical simulation on embankment stability with regard to the blasting power of the tunnel was conducted using the professional finite difference software FLAC3D to disclose the relationships between the blasting seismic waves with vibration velocity and embankment di

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Ye, Zhiwei, Jianhua Yang, Ming Chen, et al. "Difference in rock-breaking characteristics between water-coupling blasting and air-coupling blasting." International Journal of Rock Mechanics and Mining Sciences 183 (November 2024): 105924. http://dx.doi.org/10.1016/j.ijrmms.2024.105924.

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Rong, Hao, and Le Li. "Research on High Efficiency Charging and Mechanized Sealing Technology of Deep Hole Presplitting Blasting in Roof." Academic Journal of Science and Technology 10, no. 1 (2024): 451–55. http://dx.doi.org/10.54097/qk7jr872.

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In order to solve the problem of long sealing time and poor effect in the deep-hole presplitter blasting technology, the inorganic two-component blasting sealing material with a fixed water-cement ratio of 0.8:1, with "cement, gypsum and lime" as the main, "quick-setting agent, water-reducing agent and early-strength agent" as the auxiliary, and the matching double-bag sealing device were developed, and a set of rapid sealing process suitable for deep-hole blasting was designed. The field test was carried out in 43153 multipurpose roadway of Chengzhuang Mine. The application results show that

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35

Wang, Jun, Jingxuan Yang, Fengfeng Wu, Tengfei Hu, and Shams Al Faisal. "Analysis of fracture mechanism for surrounding rock hole based on water-filled blasting." International Journal of Coal Science & Technology 7, no. 4 (2020): 704–13. http://dx.doi.org/10.1007/s40789-020-00327-y.

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AbstractThe principles of fracture development during underwater blasting are examined based on explosion and impact dynamics, fluid dynamics, fracture dynamics, and field testing. The research reveals that the fracturing of the surrounding rock during underwater blasting is due to the combined action of shock and stress waves for the initial rock breakage and subsequent water expansion. The fracture development model for the surrounding rock of a drilling hole during underwater blasting is established. The rock fracturing range under the combined action of shock and stress waves is developed,

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Ding, Xiaohua, Zhongchen Ao, Xiaoshuang Li, et al. "The Mechanism of Plugging Open-Pit Mine Cannon Holes and the Modification of Plugging Materials." Sustainability 15, no. 5 (2023): 4257. http://dx.doi.org/10.3390/su15054257.

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Step blasting is an important part of open-pit mining, which is accompanied by hazards such as large blasting blocks, flying stone splashing, blasting noises, and blasting dust during the blasting process. In order to reduce the harm caused by blasting, this paper uses impact dynamics and rock dynamics to explain the deformation damage and motion law caused by detonation of the material blocked by the gun hole. By simulating the motion of the blocked material in the gun hole, the motion and failure characteristics of the blocked material in the gun hole are revealed. In this paper, geological

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Ma, Yuanjun, Changwu Liu, Ping Wang, Jun Zhu, and Xianliang Zhou. "Blast Vibration Control in A Hydropower Station for the Safety of Adjacent Structure." Applied Sciences 10, no. 18 (2020): 6195. http://dx.doi.org/10.3390/app10186195.

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The transverse cofferdam in Xiangjiaba hydropower station was a water retaining concrete structure with a length of 126 m, a width of 12 m, and a height of 25.2 m, consisting of masonry, plain concrete structure (PC), and roller compacted concrete (RCC), which had to be demolished by blasting after the dam was built. There were many precise instruments nearby the cofferdam which had strict restrictions on blasting vibration. Therefore, the cofferdam was divided into six blasting regions, including land blasting and underwater blasting. Blasting parameters and blasting network structure were ac

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Hu, Hai Ying, Yu Cheng Zhang, Zhong Min Huang, and Chang Xue Peng. "Experimental Study on Bubble Curtain Technology Applied in Underwater Blasting Damping." Applied Mechanics and Materials 580-583 (July 2014): 73–77. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.73.

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With the further development of urban construction, engineering blasting has had a wide range of applications. However, its application environment has become more and more complex relatively. Underwater blasting, one of the applications of engineering blasting, has been increasingly used in construction of subsea tunnel and immersed tube in recent years though it has a complex influence on surroundings in operation. For the study of shock wave absorption technology of underwater blasting, this paper analyses the effectiveness of bubble curtain shielding technology used in the underwater explo

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Li, Qingxiang, Zhanyou Luo, Man Huang, Jiangbo Pan, Guoshu Wang, and Yunxin Cheng. "Control of Rock Block Fragmentation Based on the Optimization of Shaft Blasting Parameters." Geofluids 2020 (December 15, 2020): 1–10. http://dx.doi.org/10.1155/2020/6687685.

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In the construction of shaft, the blockage of the mucking shaft may cause the mud-water inrush disaster. Oversized rock fragmentation is the main cause for the blockage of the mucking shaft in the raise boring machine (RBM) construction method. The influence degree of blasting parameters on rock fragmentation after blasting is quantified by adopting analytic hierarchy process (AHP). On this basis, the shaft blasting maximum rock fragmentation control model based on double hidden layer BP neural network is proposed. Results show that the maximum rock fragmentation discharged from the mucking sh

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Liu, Jiangchao, Wenxue Gao, Shenghui Zhang, and He Xu. "Numerical Analysis and Application of Uncoupled Coefficient of Water Sealed Blasting on Blasting Effect." IOP Conference Series: Earth and Environmental Science 719, no. 3 (2021): 032035. http://dx.doi.org/10.1088/1755-1315/719/3/032035.

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Wang, Sijie, Min Gong, Haojun Wu, Xiaodong Wu, and Xiangyu Liu. "Optimization Study of Water Interval Charge Structure Based on the Evaluation of Rock Damage Effect in Smooth Blasting." Applied Sciences 14, no. 7 (2024): 2868. http://dx.doi.org/10.3390/app14072868.

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In tunnel smooth blasting, optimizing the water interval charging structure of peripheral holes is of great significance in improving the effect of smooth blasting and reducing the unit consumption of explosives. Addressing the issue of a single traditional evaluation standard, this paper proposes a composite index evaluation method for rock blasting damage in different zones, and the best charging structure is optimized according to the evaluation results. Taking Liyue Road Tunnel Light Smooth Blasting Project in Chongqing as the Research Background, the numeric models were established with t

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Yang, Qing, Qidong Gao, Yongsheng Jia, et al. "Application of Simulation Methods and Image Processing Techniques in Rock Blasting and Fragmentation Optimization." Applied Sciences 15, no. 6 (2025): 3365. https://doi.org/10.3390/app15063365.

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Rock fragmentation is a key indicator for evaluating the effects of rock blasting and directly impacts subsequent excavation efficiency. However, predicting rock fragmentation outcomes is challenging due to the complex physical and chemical processes involved in explosive detonation. In this study, a simulation and analysis method for rock blasting fragmentation effects was developed by integrating the finite element method with image processing technology. To validate the reliability of this method, onsite blasting experiments were conducted. Furthermore, the rock blasting parameter of blast

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Yang, Chaoshuai, Shengyou Lei, Xijun Yue, and Chong Zou. "Experimental study on the influence of different sampling methods on the stress-strain and strength characteristics of weathered and water rich sandstone." Journal of Physics: Conference Series 2790, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1742-6596/2790/1/012002.

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Abstract In order to explore the physical and mechanical properties of layered weathered sandstone in a water rich environment, the authors obtained layered sandstone from the tunnel excavation section. Firstly, the physical properties and chemical composition were tested, and then uniaxial tests were conducted on sandstone, in which the loading direction was divided into perpendicular to the specimen bedding, parallel to the specimen bedding, and at a 45 ° angle to the specimen bedding. The uniaxial test results show that the stress-strain curve of sandstone is strain softening type. The unia

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Duan, Ya, Xuemin Zhang, Xianshun Zhou, Xinlei Chen, and Hao Zhou. "Research on the Effect of Karst on Foundation Pit Blasting and the Stiffness of Optimal Rock-Breaking Cement Mortar." Applied Sciences 12, no. 23 (2022): 12153. http://dx.doi.org/10.3390/app122312153.

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The existence of karst cavities has an important impact on the safety of foundation pit excavation projects. It is of engineering guiding value to study the influence of karst cavities on the blasting process of foundation pits and how to optimize the stiffness of cement mortar to improve the blasting effect. Based on the karst foundation pit bench blasting project of Shenzhen Dayun Foundation Pit Project, this paper adopts the SPH-FEM coupling calculation method to study the influence of karst cavities, cavity-filling water and cavity-filling silt clay on the rock-blasting process of bench bl

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Liu, Dong, Changlei Dai, Chenggang Yu, and Yaodong Ma. "Numerical Simulation and Experimental Study on Single Point Blasting of Ice Jam of Heilongjiang River Based on ANSYS/LSDYNA." Water 14, no. 18 (2022): 2808. http://dx.doi.org/10.3390/w14182808.

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Based on the thickness of the common ice layer in the Heilongjiang Basin, explosions featuring different methods of firing, different thicknesses of the common ice layer, and different distances between the explosive and the ice are hereby simulated using ANSYS/LSDYNA software. The most suitable blasting scheme after field test verification is obtained, and it is concluded through the field blasting test comparison and verification that the central ignition produces the best blasting effect and the largest blasting volume and radius when the explosion is fired under the ice. A larger ice thick

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Dong, Qian, Xin Liu, Hangli Gong, Yi Luo, Xinping Li, and Liangjun Wang. "The Damage Induced by Blasting Excavation and Seepage Characteristics of Deep Rock under High Seepage Pressure." Geofluids 2023 (April 18, 2023): 1–17. http://dx.doi.org/10.1155/2023/9159098.

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By taking the blasting excavation of a deeply buried karst tunnel in the North Tianshan Mountains in China as research objects, the damage induced by blasting excavation and seepage characteristics of deep rock under high seepage pressure was investigated. The COMSOL Multiphysics® software was adopted to establish a simulation model for the blasting excavation of a deeply buried tunnel. By embedding the stress-damage-seepage multifield coupled constitutive relationship, the mechanism of the influences of factors including blasting load, geostress, and hydraulic pressure of karst caves on the b

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Minaki, Kazushi, Koichi Kitajima, K. Minaki, Moriyasu Izawa, and Katsuji Tosha. "Improvement of Surface Texture of Stainless Steel by Utilizing Dry Blasting - 2_nd Report: Effect of Blasting Conditions on Wettability -." Key Engineering Materials 291-292 (August 2005): 265–70. http://dx.doi.org/10.4028/www.scientific.net/kem.291-292.265.

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Recently, wet blasting is generally used such as liquid honing and water jet machining in surface before plating of stainless steel. The outstanding feature of wet blasting is to prevent generation of static electric charge, to use micro abrasive grain, and to have cushioning for workpiece. On the other hand, the disadvantage of wet blasting is to generate corrosion of equipment and liquid waste under processing. Moreover, the using abrasive grain is available on a limited basis. In particular, improvement disposal of liquid waste under processing is crucial in the near future. This paper make

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Jug, Jasmin, and Kristijan Grabar. "Methods for reducing the environmental impact of rock mass excavation." Environmental engineering 7, no. 1 (2020): 29–38. http://dx.doi.org/10.37023/ee.7.1.4.

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Many engineering projects and interventions have negative effects on the environment. Rock excavation in civil engineering, either in mining or in construction, often is unthinkable without the use of explosive. However, blasting can have extensive adverse environmental impacts, like vibrations, noise, dust and chemical contamination. Therefore, it is better to avoid blasting activities near urban areas, protected animal habitats, sensitive historic buildings, water protection zones, pipelines, etc. While mechanical excavation is often longer lasting and more expensive, in some cases it may ad

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Zong, Qi, Lu Ping Yan, and Hai Bo Wang. "Numerical Simulation Analysis on Explosion Stress Field of Different Charge Construction." Advanced Materials Research 250-253 (May 2011): 2612–16. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2612.

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There are different blasting stress field which around the blast hole caused by different charge when explosives exploded in the rock. Simulation analysis on borehole wall pressure and explosion stress field of rock at different charging structure was done by ANSYS/LS-DYNA. The simulation results indicate: stress of coupling charge is the maximum, water-decouple charge is the latter and air-decouple charge is the minimum; and whether air-decouple or water-decouple charge, peak stress value of model decreased along with the increasing of decouple coefficient, but the air-decouple charge show mo

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Jang, Hyongdoo, David Handel, Younghun Ko, Hyung-Sik Yang, and James Miedecke. "Effects of water deck on rock blasting performance." International Journal of Rock Mechanics and Mining Sciences 112 (December 2018): 77–83. http://dx.doi.org/10.1016/j.ijrmms.2018.09.006.

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