Results 241 to 250 of about 25,530 (290)

Comments on surface subsidence prediction

Mining Science and Technology, 1990
Abstract The problems concerning the application of various types of subsidence prediction models are discussed including model imperfection, errors in representative coefficients or parameters and subsidence survey, and man-made errors. Prediction accuracy and methods of evaluating model prediction accuracy are also discussed.
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Subsidence of Sand due to Surface Vibration

Journal of the Soil Mechanics and Foundations Division, 1972
Laboratory tests were conducted using a plate-type vibrator on the surface of a sand sample. The static weight, dynamic force, and frequency of the vibrator were independently varied and the resulting contact force, acceleration, amplitude of vibration, and residual settlement were measured.
William F. Brumund, Gerald A. Leonards
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Some aspects of the surface of subsidence

Eos, Transactions American Geophysical Union, 1934
The problem of subsidence within the atmosphere has received comparatively little attention in synoptic studies embodying aerological material. Only the most general statements are usually made in regard to this little‐understood though important process always occurring within selected portions of the atmosphere.
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Mining-induced surface subsidence

1985
In the present context, subsidence is the lowering of the ground surface following underground extraction of an orebody. Subsidence is produced, to a greater or a lesser degree, by almost all types of underground mining. Surface displacement may result from the redistribution of stresses associated with excavation or from mining-related activities such
B. H. G. Brady, E. T. Brown
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Prediction of Surface Subsidence Due to Mining

Integrated Ferroelectrics, 2020
Ground subsidence caused by mining is increasing day by day, and some enormous disasters have been brought.
Chen Gang, Wang Qiong, Li Xiao Ming
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Economic Consequences of Land Surface Subsidence

Journal of the Irrigation and Drainage Division, 1981
Overdraft in the Santa Clara Valley ground-water basin caused land surface subsidence over an area of about 63,000 hectares with a maximum depression of about 3.6 meters between 1912 and 1967. Since cessation of overdraft and replenishment of ground-water levels in 1969, there has been no significant land surface subsidence. During the period of active
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The mitigation of surface subsidence in coal mines

Energy & Environment, 2016
Overlying-separation layer grouting technology refers to manufacturing grouting by mixing water, fly ash and other materials on ground in proportion, and then injecting into stratum of development zone on separation layer with high-pressure grouting pump to fill the separation layer space for mitigating surface subsidence in coal mine.
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Study on Foundation Deformation of Buildings in Mining Subsidence Area and Surface Subsidence Prediction

Geotechnical and Geological Engineering, 2018
The deformation damage of buildings above the subsidence area is not only caused by the unstable deformation of the mining residual cavities and fractures, the time effect of soil compression is also an essential consideration, at the same time, the additional stress of the new building group in the mining-induced subsidence area is often influenced by
Zhanxin Liu, Boqiang Cui, Yanbo Liang, Hao Guo, Yangyang Li   +4 more
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Relationship between sub-surface and surface subsidence —a theoretical model

Mining Science and Technology, 1990
Abstract This paper proposes a theoretical model which relates the sub-surface subsidence at any horizon to the subsidence at the surface caused by underground mining. Mathematical equations are derived based on certain assumptions that would enable the prediction of sub-surface subsidence from surface subsidence.
D.M. Shu, A.K. Bhattacharyya
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Prediction of surface subsidence

2020
Huayang Dai, Syd S. Peng, Zach Agioutantis   +2 more
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