نتایج جستجو برای: overburden
تعداد نتایج: 1234 فیلتر نتایج به سال:
Object of research - disturbed lands Ingulets Iron Ore dressing Work (Ingulets GZK) The purpose work development and substantiation technology realization principles cascade waste use. Research methods – field experiment, comparative analysis, systems analysis. As part the implementation use principle, results on impact application sewage sludge formation protosoils rocks GZK dumps are presente...
Geophysical measurements such as seismic datasets contain valuable information that originate from areas of interest in the subsurface; these reflections are however inevitably contaminated by other events created waves reverberating overburden. Multi-Dimensional Deconvolution (MDD) is a powerful technique used at various stages processing sequence to create ideal deprived overburden effects. W...
The virtual source method has been applied successfully to retrieve the impulse response between pairs of receivers in the subsurface. This method is further improved by an updown separation prior to the crosscorrelation to suppress the reflections from the overburden and the free surface. In a reversed situation where the sources are in the subsurface and receivers are on the surface, in princ...
BACKGROUND The rising number of deaths from cancer and other life-limiting illnesses is accompanied by a growing number of family carers who provide long-lasting care, including end-of-life care. This population-based epidemiological study aimed to describe and compare in four European countries the prevalence of and factors associated with physical or emotional overburden and difficulties in c...
Haul truck future TIMES have been hard for the major truck manufacturers with a number of major mining projects on hold, particularly pressurising the ultra-class market where the key contracts are relatively few and far between, compared to lower-capacity classes. The following details developments at Caterpillar and Liebherr, but also reveals for the first time BELAZ’s plans to roll out key m...
Knowledge of the ground condition and its hazards can play an important role in the selection of support and suitable excavation method in underground structures. Water transport tunnel is one of the most important structures with regard to the goal of excavation, special conditions and limitations considered in the design and execution of them. Beheshtabad Water Conveyance Tunnel with 64930 me...
Fluid pressures in Miocene-Pleistocene sediments of the US mid-Atlantic continental slope approach the lithostatic stress and are an important control on the stability of the slope. Fluid pressures in excess of hydrostatic were generated by regional depositional patterns and sedimentation rates. Fluid migration within porous and permeable Miocene silty sand layers redistributed pressure and gen...
This study involves seismic monitoring of a deep coal mine. The purpose is to examine the processes responsible for induced seismicity. A seismic network consisting of five threecomponent short-period seismometers located above the mine recorded the seismic data. The events discussed here occurred from March 1, 2009 until April 7, 2011 during the mining of three longwall panels and the data was...
Coal will continue to be the most demanded energy source worldwide, which highlights the importance of better understanding current practices and environmental impacts of this industry. Indonesia is the largest coal exporter in the world, but studies evaluating the environmental impacts of the coal industry in this country are missing in the literature. A case study of the Indonesian coal suppl...
Lahan bekas tambang yang ditinggalkan tidak tertata dan tertanami sehingga dapat menyebabkan lahan tersebut terjadi terdegradasi, produktif menjadi marjinal. Oleh karena itu harus diadakannya reklamasi bertujuan memperbaiki menata kegunaan terganggu akibat adanya proses kegiatan pertambangan agar berfungsi berdaya guna sesuai peruntukannya. Pada lokasi inpit dump digunakan untuk memampung mater...
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