We describe two robotic systems [6] for acquiring high-resolution volumetric maps of underground mines. Our systems have been deployed in an operational coal mine in Bruceton, Pennsylvania, where they have been used to generate interactive 3-D maps. Our approach includes a novel sensor head, assembled from multiple SICK laser range finders, and a real-time algorithm for scan matching that gener...

Zambia’s economy is fueled by copper production, which one of the country’s most important industries. In terms output, Zambia has around five large open-pit mines and eight significant underground mines. Government owns a stake in some these businesses. This article examines economic, social, technological, environmental ramifications mining Copperbelt area Zambia.

The mortality patterns of United Kingdom tin miners were examined in relation to calendar period and duration of underground work with particular attention to lung cancer and exposure to radon. Subjects were all men who had worked for at least one year between 1941 and 1984 at one of two United Kingdom tin mines and for whom a complete work history could be constructed from mine records. Standa...

In view of the serious environmental interference coal mine underground, inconvenient power supply underground equipment and existence passive serial series number existing F5G network network, explore a new all-optical redundancy technology networking scheme, realize multi-stage light branches mine, Solve problem low optical in anti-interference communication. Based on principle this paper exp...

operations. Underground mines are completely dependent measuring of illuminance and [2 & 3]. If they are carefully designed and implemented, lighting systems provide mine workers improved visibility and contribute to improved safety and productivity. Effectively designed lighting systems can prove to be a very cost investment in underground mines. Instruments are required to evaluate lighting s...

Blasting operations generate seismic effects in underground mines. These effects apply additional dynamic loads on the support system, which should bear both static and dynamic loads. Static loads are caused by the weight of the superincumbent strata, while dynamic loads occur as a result of blasting in the mining area. Identification of the origin and determination of the support system behavi...