The paper defines and describes blast waves, their interaction with a structure and its subsequent response. Explosions generate blast waves, which need not be due to explosives. A blast wave consists of two parts: a shock wave and a blast wind. The paper explains how shock waves are formed and their basic properties.The physics of blast waves is non-linear and therefore non-intuitive. To under...

Segmentation of inner structures of cochlea from OCT volume image is important to improve patient (or animal) diagnosis and treatment. In this study we show that three membranes and three chambers in the cochlea can be automatically segmented with good accuracy with the aid of locational and morphological characteristics. The segmented membranes can be used for vibration measurements and the ca...

The blast-induced vibration during excavation by the drilling and blasting method has an important impact on surrounding buildings/structures auxiliary equipment. In particular, with development of tunnel engineering, construction attracted extensive attention. Based literature data statistics, this paper first explored performance several commonly used empirical equations in predicting propaga...

Cut blasting is one of the most essential processes to reduce blast-induced vibration in tunnel blasting. The long and large-diameter uncharged hole boring (LLB) method an example cut methods, which utilizes holes drilled face. In this study, simulations were performed analyze its mechanism, LLB traditional burn-cut simulated compare their efficiency. A 3D numerical analysis using LS-DYNA code,...

Blast charge initiation procedures have a significant impact on both mining safety and production rates. In this study, the inventory benefit of an electric system was investigated to assess its influence fragmentation blast-induced damages. The WipFrag software used examine size distribution productivity 12 small-scale blasts initiated by nonelectric detonators. All blast rounds were with plai...

Prediction and parameter optimization are effective methods for mine personnel to control blast-induced ground vibration. However, the challenge of prediction lies in multi-factor multi-effect nature open-pit blasting. This study proposes a hybrid intelligent model predict vibrations using least-squares support vector machine (LSSVM) optimized by particle swarm algorithm (PSO). Meanwhile, multi...