Browsing by Subject "morphometric methods"

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Access status: Open Access ,
Morfometryczna metoda oceny jakości górotworu na potrzeby doboru obudowy kotwiowej w kopalni rud cynku i ołowiu »Pomorzany«
(2007) Korzeniowski, Waldemar
The basic support method of exploitation workings in Polish lead and zinc mines is the bolting technique. Based on many years of observations of behaviour of underground excavations, investigations on strata quality and bolting effectiveness under diversified geotechnical conditions, a supplementary criterion for roof classification and bolt matching has been suggested. Application of the morphometric method for description of roofs and wall-sides in the excavations allowed the four characteristic surface categories to be specified that are in clear relation with bolting effectiveness and the excavation stability. The goal of the introduction of extra parameters into the obligatory method is first of all, to minimize the error in RQD estimation.
Access status: Open Access ,
Morfotektonika przełomów Solinki i Wetlinki w świetle badań terenowych i interpretacji zdjęć lotniczych (Bieszczady Wysokie)
(Wydawnictwa AGH, 2005) Kuśmierek, Jan
Gorge-type valleys of the Solinka and Wetlinka rivers within the Upper San drainage basin represent an interesting geotouristic object in respect of distinct relationship between relief, and evolution and tectonics of complex geological structures in the foreland of the Dukla Unit in the Bieszczady Mts. They also distinguish themselves by picturesque landscapes and vast exposures of the Otryt Sandstone outcrops, this Late Oligocene member is typical of the Bieszczady facies subregion of the Silesian Nappe. Detailed cartographic and structural investigations made by the author have proved that synclines, composed of thick complexes of the Otryt Sandstones, are backward overthrust onto subsurface structural elements, a feature which has not been reflected in previous cartographic elaborations. With formation of the disharmonic tectonic structures, the inversional character and origin of the Solinka and Wetlinka water gaps are connected. Hypsometric measurements of relics of the foothill and riverside planation surfaces, carried out on stereoscopic aerial photographs, have documented significant deformation of the surfaces and oscillatory character of the Pliocene-Quaternary neotectonic uplift. The greatest denivelations of the planation surfaces correlate with the intersection of the backward overthrusts which had crucial effects on tectonic reshaping of the structures, as well as on the relief development, this resulted in the origin of the antecedent water gaps and incised meanders.