|The Physical Object|
Int. J. Rock Mech. Min. Sci. & Geomech. Abstr. Vol. 13, pp, Pergamon Press Printed in Great Britain Effects of Mining Subsidence on Colliery Spoil Heaps--I Mining Subsidence and Geotechnical Aspects of Spoil Heaps and their Foundations D. J. FORRESTER* B. N. WHITTAKERt Mining sltbsidence principles are reviewed with reference to surface displace- ment Cited by: The report describes a research investigation into the effects of mining subsidence on colliery spoil heaps. Results from several field investigations carried out to monitor the character of surface deformational behaviour of selected spoil heaps during undermining are by: 9. Effects of mining subsidence on colliery spoil heaps—II Article (PDF Available) in International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts 13(4) April Mining Subsidence on Colliery Spoil Heaps--II double the predicted values and cracking of the spoil heap surface occurred to a definite pattern and at regu- lar intervals where the surface strains exceeded approxi- mately + 3"0 mm/m. as shown in Fig. 7; (e) subsidence was detected on the spoil heap sooner than predicted, developing more.
Forrester, D.J. and Whittaker, B.N. () Effects of mining subsidence on colliery spoil heaps, Part 2. Deformational behaviour of spoil heaps during ational Journal of Rock Mechanics and Mineral Science and Geomechanical Abstra – Google Scholar. To reclaim an area of colliery spoil it is necessary to put Coal Mining Subsidence Act (The Coal Authority4). Measures can be taken to avoid subsidence in new developments 18 spoil heaps, so the problem is no longer an environmental issue at Prestongrange. At the time of mining. Mining operations often pollute the atmosphere, surface waters and ground water. Rainwater seeping through spoil heaps may become heavily contaminated, acidic or turbid, with potentially devastating effects on nearby streams and rivers. Subsidences continued in the field until the underground coal mining activity was ceased in Besides, putting the situation in a more complicated nature, landslide occurred within the spoil tip which is located at the very east of the subsidence field, and the spoil tip material moved to the west covering top of the northeastern boundary.
Disturbance may occur due to rotational failure, mining subsidence or vibration from earthquakes, blasting or heavy plant, Collapse of the soil structure takes place, but closer packing of the grains of spoil material is prevented by the viscosity of the water, and liquefaction occurs allowing the spoil to flow downhill as a slurry. Surface subsidence is recognised as a problem in most countries, particularly those with significant mining and other underground resource extraction industries. This book addresses the problems relating to subsidence whether caused naturally, or arising from mining or other forms of underground extractive main purpose of this book is to bring together subsidence knowledge. Forrester D.J. and Whittaker B.N. (a) Effects of mining subsidence on colliery spoil heaps: Part 1, Mining subsidence and geotechnical aspects of spoil heaps, International Journal of Rock Mechanics & Mining Science, 13, – mining of a seam is typically 1 to 2 m, or the equivalent of more than half the thickness of the coal seam extracted. The presence of massive sandstone and conglomerate beds in the overburden can reduce subsidence. Subsidence can be predicted using a variety of empirical (experience-based), analytical and numerical methods.