scholarly journals Safety aspects of longwall mining in the Illinois coal basin

2017 ◽  
Vol 95 (2) ◽  
pp. 67-73 ◽  
Author(s):  
Rochelle M. Stiles ◽  
Jonathan W. Swan ◽  
Jaimie L. Klemish ◽  
Michael J. Lannoo

Although habitat loss is a major driver of amphibian and reptile declines globally, a subset of postindustrial landscapes, reclaimed and restored, are creating habitat for these animals in the United States. In southwestern Indiana, along the southeastern edge of the Illinois Coal Basin, post-SMCRA (Surface Mining Control and Reclamation Act of 1977) grassland restorations are recreating prairies in a region where they occurred naturally as openings (pockets) in deciduous forest, but were destroyed by agricultural activities following Euro-American settlement. Furthermore, it is likely, given the speed of recolonization by 34 species of amphibians and reptiles (9 frog, 5 salamander, 13 snake, 5 turtle, and 2 lizard species), that the grasslands associated with railroad spur-line right-of-ways act as corridors to facilitate movement of these species into these relatively large sites. We suggest that reclaimed, restored, and properly managed landscapes can support reproducing populations of amphibians and reptiles, including species in decline across other portions of their range.


2011 ◽  
Vol 26 ◽  
pp. S162-S166 ◽  
Author(s):  
Paul T. Behum ◽  
Liliana Lefticariu ◽  
Kelly S. Bender ◽  
Yosief T. Segid ◽  
Andrew S. Burns ◽  
...  

2020 ◽  
Vol 177 (12) ◽  
pp. 5723-5739
Author(s):  
Łukasz Wojtecki ◽  
Maciej J. Mendecki ◽  
Iwona Gołda ◽  
Wacław M. Zuberek

AbstractThe underground mining of coal seams in the Upper Silesian Coal Basin is carried out at great depths and mostly in the presence of remnants or edges of other surrounding coal seams, i.e. under the condition of high stress level in the rock mass. Therefore, this mining is accompanied by rockburst hazard and suitable preventive action is required. Long-hole destress blasting plays an important role and is commonly applied in rockburst prevention in underground hard coal mines. Estimated blasting effectiveness is important when designing rockburst prevention. It is commonly estimated on the basis of the seismic energy of a provoked tremor. The seismic source parameters have already been considered for this purpose. Additional information about the effects of long-hole destress blasting could be contemplated in the planning of active rockburst prevention. The seismic source parameters of tremors provoked by long-hole destress blasting have been calculated and are presented in this article. Destress blasts were performed during the longwall mining of coal seam no. 506 in one of the hard coal mines in the Upper Silesian Coal Basin. They were executed from the longwall face, in order to destress the rock mass ahead of it. Parameters of the blasts were variable and they were modified according to geological and mining conditions and the observed level of rockburst hazard. The seismic source parameters have been determined for tremors provoked directly after firing explosives and for tremors occurring in the waiting time, and they have been compared with each other.


2020 ◽  
Author(s):  
M.A. D’Avanzo ◽  
G.M. Contessa ◽  
G. Cocomello ◽  
M. Mattozzi ◽  
M. Pacilio ◽  
...  

Purpose. In this article, the authors propose useful operational indications to approach in the best possible way the issues concerning the design of a facility for manufacturing radiopharmaceuticals, with focus on organizational and safety aspects. Methods. Several documents produced by authoritative bodies, national and international scientific institutions and associations were examined and referenced, to the purpose of reviewing all available information in the field. Results. Indications are gathered for the design stage, including the organization of accesses and routes and characteristics and requirements of premises and systems. Conclusions. Main goal is to guide the reader in evaluating and choosing the most suitable features and equipment to limit the risks due to ionizing radiation and to prevent contamination of the workers and the environment.


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