Given the sophisticated nature of the blast phenomenon in relation to structures, it is of significance to accurately investigate the structure behavior under blast loads. Due to its rapid and transient nature, blast loading is one of the most important dynamic loadings on the structures. Since masonry materials are widely used as the partition and bearing walls in the existing and newly-built ...

Future detection of a supernova neutrino burst by large underground detectors would give important information for the explosion mechanism of collapse-driven supernovae. We studied the statistical analysis for the future detection of a nearby supernova by using a numerical supernova model and realistic Monte-Carlo simulations of detection by the Super-Kamiokande detector. We mainly discuss the ...

This paper introduces a search-and-rescue robot system used for remote sensing of the underground coal mine environment, which is composed of an operating control unit and two mobile robots with explosion-proof and waterproof function. This robot system is designed to observe and collect information of the coal mine environment through remote control. Thus, this system can be regarded as a mult...

Identifying Underground Nuclear Explosions (UNEs) and discriminating them from natural earthquakes is a critical issue for the verification of the Comprehensive nuclear-Test-Ban Treaty (CTBT). The earthquake source is described as a shear dislocation on a fault plane, which generates both Pand S-wave at the source. On the other hand, the nuclear explosion source is described as an isotropic vol...

The tunnel is one of the most important components in modern underground engineering. Due to long and narrow shape constraints, it very easily results large-scale fire explosion when deflagration caused by accidents vehicles that transport dangerous goods tunnel. Previously, studies on damage lining high-temperature impacts these kinds disasters were often limited a discussion only influencing ...

Within this paper, radioecological data concerning the "peaceful" underground nuclear explosion Kraton-3, conducted at a remote Arctic location (65.9 degrees N, 112.3 degrees E) within the former USSR in 1978, are reviewed. The data and estimates published in the available literature sources before September 2008 could be grouped as following: (a) characterisation of the current radioactive con...

Underground nuclear explosions (UNEs) can induce acoustic-gravity waves, which disturb the ionosphere and initiate traveling ionospheric disturbances (TIDs). In this paper, we employ a multi-step and multi-order numerical difference method with dual-frequency GPS data to detect ionospheric disturbances triggered by the North Korean UNE on 25 May 2009. Several International GNSS Service (IGS) st...