Results 1 to 10 of about 49,627 (206)
Rock blasting evaluation - image recognition method based on deep learning [PDF]
Scientific ReportsThe image analysis of rock blasting fragmentation and half-hole rates serves as a pivotal basis for evaluating the quality of geotechnical blasting and pre-splitting blasting.
Haibao YI, Aixiang Wu, Xiliang Zhang
doaj +2 more sources
Heliyon, 2023 During the excavation process in fractured rock masses in underground mines, blasting excavation can cause dangerous block collapses on surrounding rock.
Zhongyuan Gu, Miaocong Cao
doaj +1 more source
地质科技通报, 2023 Objective In recent years, the trend of tunnel blasting construction extending to depth is becoming more and more significant, and the influence of layered rock mass in deep buried diversion tunnel on cutting quality in blasting construction is the key ...
Shouguo Jiang +4 more
doaj +1 more source
Applied Sciences, 2022 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
Liang Wu +3 more
doaj +1 more source
Tunnel Slotting-Blasting Numerical Modeling Using Rock Tension-Compression Coupling Damage Algorithm
Applied Sciences, 2022 Slotting-blasting is the most critical technology in the construction of rock tunnels using the drilling and blasting method. At present, there is no effective method to simulate the effect of slotting-blasting. In this paper, we proposed that the weight
Jiancong Xu, Zelong Wang, Guorong Rui
doaj +1 more source
Formation Mechanism and Control Technology of an Excavation Damage Zone in Tunnel-Surrounding Rock
Applied Sciences, 2023 Loosened rock circle is formed around the tunnel when the tunnel is constructed by the drilling and blasting method. The size of the loosened rock circle around the tunnel and the degree of internal rock fragmentation has an important influence on the ...
Hongxian Fu +7 more
doaj +1 more source
Study on the Improved Method of Wedge Cutting Blasting with Center Holes Detonated Subsequently
Energies, 2022 To acquire a satisfying cutting effect during medium-length hole blasting driving of rock tunnels, an improved wedge cutting blasting method with supplementary blasting of the center holes was proposed.
Bing Cheng +5 more
doaj +1 more source
Analysis on Monitoring of Blasting Vibration in Semi Coal and Rock Roadway Excavation
Meikuang Anquan, 2020 To study the regularity of blasting vibration of semi coal and rock roadway and its influence on the broken rock zone, the semi coal and rock roadway of Xinyi Coal Mine is taken as the test site, and the field test of blasting vibration and broken rock ...
ZHUANG Youjun, SHI Gang, GAO Jingdong, ZHANG Wei, YANG Bingzhen, ZHANG Hao
doaj +1 more source
Research on deep hole segmented charge cut blasting of rock roadway based on numerical simulation
Meitan kexue jishu, 2023 With the increase of the depth of the blast hole, the rock clamping effect at the bottom of the blast hole is enhanced, resulting in low rock breaking efficiency and blast hole utilization.
Chengxiao LI +5 more
doaj +1 more source
Effect of initiation pattern on rock damage and blasting seismic under multi-hole blasting
Geomatics, Natural Hazards & Risk, 2023 In multi-hole blasting, the design of the initiation pattern is critical for the blasting effectiveness, but its effects on rock damage and blasting seismic are still unclear. This research focused on investigating the effect of initiation patterns under
Jiliang Kan +6 more
doaj +1 more source