نتایج جستجو برای: overburden
تعداد نتایج: 1234 فیلتر نتایج به سال:
complaint open to increasingly a.lert patients for which, or for whom, the onus of management in the code of practice is being placed on the nurse in charge of the ward and her record book. I estimate that there are already 11 or 12 channels of complaint open to the customers. By all means let us establish machinery that allows free conument and honest answer, but let it be a system that will b...
After excavation, insitu stress conditions are changed which lead deformation due to the concentration. For stability in excavated tunnel profile, appropriate support system is essential. To recommend system, site specific data used from Higher Himalayan Region of Nepal. Study focused on 3 m and 6 size inverted D Shaped with three different overburden thickness. analysis system: Empirical metho...
This study aims to analyze the process of soil formation on overburden material in reclamation area 2013 (9 years), 2015 (7 and 2018 (4 years) support success sustainable reclamation, relationship between planting age, morphology climate conditions that can affect overburden. The research was conducted at a coal mining company located Tanah Bumbu Regency, South Kalimantan Province. method used ...
With surface mining of inclined and steeply dipping coal deposits, the so-called deeping longitudinal methods with a gradual deepening from to final depth are widely spread, while orienting front along strike line seams (strata). When using such methods, volumes internal dumping limited or completely absent; there is peak-like increase in overburden transportation distance, land resources distu...
The results on the research of heat-insulating porous ceramic materials produced using overburden rocks Novodvorsk deposit Pinsk district Brest region as main component raw are presented in study and use bulk rock consisting glauconite sands aleurites is recommended. Low-melting clay, basalt a blowing agent used additional components, rational combination which would ensure forming ability mass...
On-site underground background measurements were performed for the planned reactor-neutrino oscillation experiment KASKA at Kashiwazaki-Kariwa nuclear power station in Niigata, Japan. A small-diameter boring hole was excavated down to 70m underground level, and a detector unit for γ-ray and cosmic-muon measurements was placed at various depths to take data. The data were analyzed to obtain abun...
Boreholes drilled to the bottom of ice stream B in the West Antarctic Ice Sheet reveal that the base of the ice stream is at the melting point and the basal water pressure is within about 1.6 bars of the ice overburden pressure. These conditions allow the rapid ice streaming motion to occur by basal sliding or by shear deformation of unconsolidated sediments that underlie the ice in a layer at ...
Considerable fracturing occurs around the deep mine stopes because of the mining induced stresses superimposed on the high overburden stresses encountered at these depths. The frequency and orientation of fracturing is largely affected by the presence of geological structures, as well as the stope layout and mining configurations. Being able to accurately predict the effect of these interfaces ...
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