During the underground mining of coal resources, rock pressure emerges acutely and mine geological disasters occur frequently. It is great significance to grasp manifestation law in time guide safety production operation pit. In this research, calculation equations concept information entropy based on zone degree are primarily defined, synergetic theory maximum principle combined put forward sy...

In order to cope with multi-dimensional mine disasters in deep mines, enhance the adaptability of open tunnel-boring machine (TBM) actual working face environment, and improve excavation speed TBM, based on project Gaojiapu Coal Mine Zhengtong Industry, Shaanxi Province, this paper comprehensively considers difficulties encountered by TBM process improves system its supporting equipment. The re...

Coal gangue produced during coal production not only poses a serious threat to the ground environment but also imposes economic burdens on mine. The partial-filling mining (PFM) method proposed in this paper can make full use of and is great significance prevention control water disasters at working face. specific process used implement first divide face into several narrow faces then fill fill...

During armed conflicts (AC) and other disasters, the elderly, women, children, infirm chronically ill patients are most vulnerable population, with a high risk to health life. Chronically people kidney diseases, including those failure, deserve special attention due their complete dependence on available functional infrastructure, access vital drugs well-trained personnel. Currently, there is l...

LSE has developed LSE Research Online so that users may access research output of the School. Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Users may download and/or print one copy of any article(s) in LSE Research Online to facilitate their private study or for non-commercial research. You may not engage in furthe...

Disasters occur when hazards and vulnerability meet. Out of 100 disasters reported worldwide, only 20 occur in Africa, but Africa suffers 60% of all disaster-related deaths. This is probably due to the type of hazards that affect this continent, to under-reporting, and to the fact that under the circumstances prevailing in Africa, it is easy for any disaster to escalate and multiply its impact....

The literature on rare disasters shows that low probability events can explain high, time-varying risk premia. I find that large spikes in risk premia occur around financial crises but not around other disasters such as wars. A model with financial intermediaries generates endogenous financial crises that quantitatively match those in the data, while also replicating high equity risk premia and...

Original scientific paper With the increase in mining depths and the occurrence of worsening conditions, deep, large-scale and rapid mining may lead to more complicated dynamic features for tunnels, making them vulnerable to dynamic disasters such as rock bursts and coal/gas outbursts with subsequent heavy damage and casualties. A three-dimensional structural mechanics model for deep stopes was...

: With the large-scale development of mining industry, soil and water loss, environmental pollution other geological disasters ac-companied by coal are continually increasing. Therefore, while promoting mine production relying on scientific technological progress, measures to control reduce resulting cannot be ignored. In this paper, taking Xiezhuang as an example, we have combined its actual c...

Mine slope landslides seriously threaten the safety of people’s lives and property in mining areas. Landslide prediction is an effective way to reduce losses due such disasters. In recent years, micro-deformation monitoring radar has been widely used mine landslide monitoring. However, traditional methods are not able make full use diversified data from these radars. This paper proposes a time ...