... Abstract The study of blast effect on bench stability is indispensable, because the overall stability of the quarry’s slope is directly linked to it. For this purpose, a study is conducted in a limestone quarry. Before the stability analysis, a fragmentation evaluation is carried out by two...

... of blasts in an open pit quarry, thanks to the Split-desktop software ( Split Engineering , LLC , Tucson, USA). The study of the particle size distribution is very important when sizing an excavation site, as the average size of the pile must be compatible with the equipment used for clearing...

... Abstract A stability analysis on the possibility of using room and pillar underground mining method, in a marble quarry in Alentejo (Portugal) with backfill, is presented. Given the data provided by the laboratory tests over marble samples and in situ tests as well as a thoroughly geology...

... and structural contexts, such as the Valmadonna-Pedemonte "Marmorino" quarry. Introduction Industrial minerals are part of everyday life but even if we take our industrial minerals for granted, there is increasing pressure against extraction, largely on environmental grounds. According to Manning (1995) [22...

...-wire cutting machines and saw-cutting chains, with big frontal-loaders and excavators, have greatly increased the production and require for a robust design based on reliable geomechanical data. Underground quarrying is increasing because technical and environmental concerns and asks for robust design...

.... The methodological approach proposed perfectly integrates with smart management of excavation sites and the infrastructure and can guarantee an extremely high level of health and safety. Introduction Ornamental stone quarries are, in many cases, built along mountain slopes, which exposes the quarry site...

... Abstract This paper presents the case study of a stability analysis of an over-tilted (inverse) slope in an ornamental granite quarry. Based on traditional small quarrying practices and due to space constraints, the SW slope was carved following the occurrences of highly persistent joints...

... Abstract The main aim of this study was to determine the variation of the P- wave velocity of carbonate rocks over time. Samples of carbonate rocks like dolomite and limestone were carried out from three quarries. The study was done in May and November 2015. To test equipment Pundit Lab...

... ABSTRACT: Chalk has long been used as a strong building material. The shallow underground room-and-pillar quarries where the chalk was extracted now lie abandoned and endure the effects of time and weathering, increasing their risk of collapse. The risk of instability is an issue for more than...

... ABSTRACT: Diamond wire machines have an important position among the other machines used for block production. One of the most important factors affecting the production rates in quarrying is the performance estimation of these machines. The aim of this study is to investigate...

... ABSTRACT: The authors tried to check the seismic response of some underground quarries for Oya tuff in Oya town, Utsunomiya City, Tochigi Prefecture, Japan through field measurement and numerical analyses. The authors selected some seismic velocity waves from thousands of seismic records...

... the process followed in the preliminary design of an underground crushing chamber placed in a quarry of ornamental limestones (Trigueros et al. 2011). The aim of this initial study is to adapt the geometry of the underground infras- tructures to the geotechnical conditions of the rock, being a previous stage...

... Abstract A large amount of armourstone is needed for the construction of breakwaters that protect harbors. Sharp tender price and optimized design require an accurate prediction of the blast yield of quarries selected for the production of armourstone. The Blasted Block Size can only...

...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 Using the distribution curves to optimize the block exploitation in natural stone quarries A. Turanboy N.E. Konya University...

... carried out many studies, in recent years, investigating the effectiveness of several methodologies to monitor the evolution of the damaging mechanisms. During 2012 the Brasserie quarry, an old limestone mine (Paris, France) was instrumented with microphones to detect the acoustic waves generated...

... Abstract In the present work, an attempt has been achieved to describe the effects of ageing and of water on the hydro-mechanical behaviour of chalks from underground quarries of northern Parisian basin. Physical and mechanical properties were obtained as a function of distances from...

... of limestones of Harran City were extracted from open-pit and underground quarries known as Bazda quarries. Bazda antique underground quarry pillars suffer some structural stability problems in terms of splitting of high pillars, roof falls, plane or wedge sliding and large sinkholes. The authors have initiated...

... tensor dynamic elastic moduli potential direction elastic moduli orientation quarry crack tensor elastic property relation anisotropy wave velocity dolomite wave propagation azimuth distribution Rock Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013...

... Studies for rockburst prediction in the Carrara Marble II: geostructural/geomechanical rivisitation and 2D FEM modeling of a large underground quarry M. Coli, E. Livi & M. Baldi Department of Earth Sciences, Firenze University, Italy N. Coli Department of Civil, Environmental and Materials...

... used successfully in many mining operations. Due to a lack of proper consideration, economical losses occur during the planning of dimensional stone quarry operation. This study aims to assess the final excavation of useful (marketable) rock blocks in the present dimension quarry and/or the pre...