Significant progress has been made in recent years for modeling spatial economic impacts of disasters in a regional context (for example, Okuyama and Chang eds. Modeling the Spatial Economic Impacts of Disasters, forthcoming). While these advancements are more toward modeling strategies based on conventional frameworks, little has been dealt with the theory on economics of disasters, since the ...

Mine earthquakes are serious disasters in coal mines, especially extremely thick hard strata. This study investigates the occurrence mechanism of fracture-type mine Hydraulic fracturing by ground vertical well was used for shock absorption. Dongtan taken as a case study. Field investigation, theoretical analysis, industrial tests, and field monitoring were revealing mechanism. First, mechanical...

Abstract Visualization of complex geological structures can technically support the accurate prediction and prevention coal mine disasters. This study proposed a new digital reconstruction method to visualize based on establishing virtual model in twin system. methodology for fault comprises following four aspects: (1) collection fidelity multi-physical field data structures, (2) transmission d...

this study was carried out for the purpose of investigating the issue of tailings dams as a potential source of contamination by trace elements in soils at the sidi bou othmane mine in the marrakech region, morocco. soil samples taken from depths of up to 15 cm and within a radius of 50 m from the tailings dams, were analyzed for cd, cu, pb and zn using atomic absorption spectrometry. average c...

Natural disasters are harmful events resulting from natural processes of the Earth. Examples of natural disasters include tsunamis, volcanic eruptions, earthquakes, floods, droughts, and other geologic processes. If they affect populated areas, natural disasters can cause economic damage, injuries, or even losses of lives. It is thus desirable that natural disasters be detected as early as poss...

Metal price is one of the most important parameters in the calculation of cut- off grade. The cut- off grade has the main role in determination of mine layout. Mine layout actuates mineable reserve, mine life and economic profitability. Not considering the uncertainty in metal prices can lead to a non-optimal layout. In this paper optimum underground mine layout is determined by expected utilit...

We examine impact of natural disasters on annual output and output growth in Vietnam. Using provincial data for primary and secondary industries in Vietnam, we employ the Blundell-Bond System GMM procedure to estimate the impact of disasters on the macroeconomy. Results show that more lethal disasters result in lower output growth but that more costly disasters (in terms of destroyed capital) a...

Abstract Hydraulic support is the primary equipment used for surrounding rock control at fully mechanized mining faces. The load, location, and attitude of hydraulic are important sets basis data to predict roof disasters. This paper summarized analyzed status coal mine safety accidents influencing factors work also proposed monitoring characteristic parameters disasters based on posture-load c...

The ability to manage extreme disasters of any type and their aftermath has been observed to be a challenge for government. This is because extreme disasters are known to disrupt and harm social, economic, business, human welfare and the environment when preparation for them are inadequate or ineffective. Complex, extreme or catastrophic events have inherent characteristics which put a consider...