Reserch relaevance. Most ground movements are generally due to rock instability, this natural phenomenon poses a risk humanity. The properties of the mass directly influence type movement especially in underground structures. Research aim. Our goal is characterize and classify diatomite from sig mine using geomechanical classification systems such as RQD RMR order determine quality rocks Wester...

Abstract Recent advances in remote sensing techniques and computer algorithms allow accurate, abundant, high-resolution geometric information retrieval for rock mass characterization from 3D point clouds. The automatic application of the extracted local scale rockfall susceptibility assessment, where discontinuities characteristics play a major role rocky slope stability, requires step by logic...

The demand for the usage of hydraulic rock breakers in excavating masses has increased recently environmental and economic reasons. conventional method (i.e., drill blasting technique) many restrictions due to aspects. In this paper, we propose a methodology prediction performance excavation mass. case study area is located Northwest Egypt on shoreline Mediterranean Sea. Extensive site investig...

Natural discontinuities as well mechanical properties are the difficult-to-control parameters that significantly influence fragmentation of marble after blasting. In Central Africa, Bidzar quarry is only one producing marble, plagued for decades by block problems, requiring multiple blasts cause huge costs and environmental problems. The objective this study to predict rock improve its geologic...

Purpose. The research purpose is to study the effectiveness of artificial maintenance mined-out space based on use cable bolts reduce dilution coefficient when mining low-thickness ore bodies. Methods. Geotechnical mapping rock mass according Q, RMR, RQD and GSI rating classifications conducted, as well a linear survey fracture system in hanging wall footwall rocks performed using compass GEO I...

Geoteknik tambang bawah tanah merupakan salah satu cara untuk menganalisa kestabilan lubang bukaan dalam menentukan sistem penyangga dan membahas tidak dapat dipisahkan dengan analisa pembuatan rekomendasi sebagai langkah awal merancang memilih berbagai jenis pada tanah. Tujuan dari penelitian ini mengetahui tipe kelas batuan, ground support recommendation RMR faktor keamanan bukaan. Metode dil...

Geology and the detailed understanding of its properties are fundamental to the optimal design and successful operation of any mine. To that end, extensive fieldwork was conducted at Sandsloot open pit (PPRust— Anglo Platinum) to collect geotechnical information both from exploration boreholes and in-pit mining faces. Over a fie-year period, geotechnical data were collected from 29, 213 m of ex...

For an open pit mine, the rock slope stability is one of major significant challenges at every stage in operation. It became a concern from planning until mining closure. Mining activities research location have entered closure phase and produced final that consists 4 single slopes with overall height 65m angle 62° its not yet known. The actual has discontinuities which affect potential for fai...