Development of roof bolting use in Polish coal mines

Nierobisz, A.
November 2011
Journal of Mining Science;Nov2011, Vol. 47 Issue 6, p751
Academic Journal
In the paper, after short historical outline, a development of roof bolting use in Polish coal mines on the span of last twenty years was presented. Two characteristic examples of use were given. First of them is related to the solution, which found the widest use in mines. It consists in replacement of abutment at longwall and entry crossing with bolts. Second example concerns the use of independent roof bolting. For both examples, the geological conditions were described, as well as the applied patterns of bolting and the principles of support and mine working stability control. The realized review of development of roof bolting enables to present series of advantages resulting from the use of roof bolting. The use of independent roof bolting gives the largest efficiency effects. The calculations conducted for definite workings proved that the reduction of costs between 24 and 57% may be achieved in relation to arch support. Simultaneously, the fact attracts attention, that the total length of workings executed with independent roof bolting for last twenty years makes only 15% of stone coal workings total length realized in Polish coal mining on the span of one year only.


Related Articles

  • Dust capture performance of a water exhaust conditioner for roof bolting machines. Beck, T. W. // Mining Engineering;Mar2012, Vol. 64 Issue 3, p45 

    Roof bolter occupations in underground coal mines continue to experience overexposure to respirable dust. One potential source of dust in roof bolting operations is the exhaust from the roof bolter dust collection system. A wet exhaust conditioner (water box) has been developed to reduce dust...

  • Ground control at the Spremberg copper mine. Lautsch, T.; Graef, A. // Mining World;Feb2013, Vol. 10 Issue 1, p44 

    The article offers the authors' insights on ground control term in literature, related to the launching of roof bolting in the early 1930s. The authors state that ground control's origin was in coal mining, in strata bonded rock formations. The authors mention that as of 1960, ground control has...

  • Numerical Modeling of Mining Caving in Yanzhou. China. YANG Ling Qiang; Qin Bing // Applied Mechanics & Materials;2014, Issue 630-642, p809 

    It is rather complicated to predict the characteristics of strata response to mining operation in thick seams. However, a comprehensive evaluation of ground behavior is a prerequisite for maintaining efficient production, especially when the top-coal-caving method behind the face is applied. An...

  • Research on Anti-Foundation-Displacement Performance and Reliability Assessment of 500 kV Transmission Tower in Mining Subsidence Area. Qianjin Shu; Guanglin Yuan; Yunfei Zhang; Guangli Guo // Open Civil Engineering Journal;2011, Vol. 5, p87 

    The performance of resisting foundation displacement of typical single return circuit and double return circuit transmission towers under all kinds of load conditions including foundation horizontal displacement, foundation vertical uneven downward displacement were analyzed by finite element...

  • Lateral Stress Concentration in Localized Interlayer Rock Stratum and the Impact on Deep Multi-Seam Coal Mining. Mingwei Zhang; Hideki Shimada; Takashi Sasaoka; Kikuo Matsui // International Journal of Geosciences;Nov2013, Vol. 4 Issue 9, p1248 

    To explore the impact of lateral stress concentration in interlayer rock stratum on the exploitation of protected coal seam, a field experiment was carried out in a multi-seam mining structure. Lateral stress redistribution and interlayer rock failure behavior were surveyed. Then an assistant...

  • Numerical Study on the Transient Preheating Process of a Regenerative Oxidation Bed. Yongqi Liu; Jinhui Han; Yanyan You; Zhenqiang Gao // Open Mechanical Engineering Journal;2011, Vol. 5, p62 

    The transient preheating process of a regenerative oxidation bed placed in a coal mine methane thermal reverse-flow reactor is numerically investigated in this paper. The regenerative oxidation bed is heated by the burned gas which is generated from a burner and is distributed through manifolds,...

  • Cost Rationalization of Maintaining Post-Industrial Regions. Jonek-Kowalska, Izabela; Turek, Marian // Polish Journal of Environmental Studies;2013, Vol. 22 Issue 3, p727 

    Maintenance of the dewatering regions of liquidated mines has a yearly cost exceeding $50 million. The results of research and forecasts conducted allow us to state that, in the dewatering plants operating in the Upper-Silesian Coal Basin, there are possibilities of reducing the general costs by...

  • Roof Boling Adds Stability to Weak Strata. Peng, Syd S. // Coal Age;Dec98, Vol. 103 Issue 12, p32 

    Discusses the importance of roof bolting to coal industry in the United States. Types of roof bolts for different conditions; Discussion on roof strata stability; How roof bolting works. INSET: Eight frequently asked roof bolting questions.

  • Study on Pressure Observation of Fully Mechanized Caving Faces in Coal Seams with Rock Burst Danger in Xiagou Coal Mine. Zhichao Tian; Yejiao Liu; Wencai Wang; Yuhui Ren // Applied Mechanics & Materials;2014, Issue 580-583, p1331 

    Taking the first fully mechanized caving face in Xiagou coal mine as research background, through the pressure observation on the scene field of fully mechanized caving face with rock burst danger, this essay reveals the pressure appearance law of coal seams rock burst danger and concludes that...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics