Results 241 to 250 of about 249,833 (291)

Crack propagation behavior in slit charge blasting under high static stress conditions

International Journal of Rock Mechanics And Mining Sciences, 2019
In situ stress in deep rock masses has a significant effect on directional fracturing during slit charge blasting. In this paper, the stress distribution around a borehole under high static stress is studied using theoretical analysis, and the dynamic ...
Ren-shu Yang, Chenxi Ding, Yongliang Li, Li-yun Yang, Yong Zhao   +4 more
semanticscholar   +1 more source

Model test study on vibration blasting of large cross-section tunnel with small clearance in horizontal stratified surrounding rock

Tunnelling and Underground Space Technology, 2019
During the construction process of excavation blasting in small clearance tunnel, the blasting vibration inevitably disturbs and damages the interlaid rock and influences the stability.
Shuguang Song, Shucai Li, Li-ping Li, Shi Shaoshuai, Zong-qing Zhou, Liu Zhenhua, Shang Chengshun, Sun Haozheng   +7 more
semanticscholar   +1 more source

Wavelet packet analysis of blasting vibration signal of mountain tunnel

Soil Dynamics and Earthquake Engineering, 2019
Using drilling and blasting method to construct the Mountain tunnel, it is important to monitoring and analysis of blasting seismic wave. The research of simple characteristics of blasting vibration wave such as amplitude, frequency, duration in the ...
Dan Huang, Shuo Cui, Xiaoqing Li
semanticscholar   +1 more source

Experimental and numerical study on the effect of water-decoupling charge structure on the attenuation of blasting stress

International Journal of Rock Mechanics And Mining Sciences, 2019
The blasting fracturing technique is one of the most promising options for enhancing the permeability of reservoir rock masses in the exploitation of petroleum, coal, uranium and other deep resources.
Wei-min Yuan, Wang Wei, Xuebin Su, W. Lei, Jiangfang Chang   +4 more
semanticscholar   +1 more source

Numerical Studies on the Cumulative Damage Effects and Safety Criterion of a Large Cross-section Tunnel Induced by Single and Multiple Full-Scale Blasting

Rock Mechanics and Rock Engineering, 2021
Ling Ji, Chuan-bo Zhou, Shiwei Lu, N. Jiang, M. Gutierrez   +4 more
semanticscholar   +1 more source

Numerical Study on an Innovative Shaped Charge Approach of Rock Blasting and the Timing Sequence Effect in Microsecond Magnitude

Rock Mechanics and Rock Engineering, 2021
Yao Yin, Qing Sun, Baoping Zou, Q. Mu
semanticscholar   +1 more source

Blast phagocytosis

Blood, 2022
Pedro Asensi Cantó, Pilar Lloret Madrid
openaire   +2 more sources

Research on vibration effect of tunnel blasting based on an improved Hilbert–Huang transform

Environmental Earth Sciences, 2021
Yan Zhao, R. Shan, Hai long Wang
semanticscholar   +1 more source

Fracture mechanism of rock around a tunnel-shaped cavity with interconnected cracks under blasting stress waves

, 2021
Xiaohan Li, Zhe-ming Zhu, Meng Wang, Dingjun Xiao, Yun Shu, Shuai Deng   +5 more
semanticscholar   +1 more source

Blasting Safety for Surface Blasting

2016
One of the largest single problems that face a blasting contractor is blasting safety. The principal disturbances created by blasting are flyrock, ground vibration and air blast which may cause damage to structure nearby and the source of serious conflict with the inhabitants who live close to the operation.
openaire   +1 more source