... Abstract Cable bolts are used frequently as a secondary support system (with steel arch support) in difficult stress-strain conditions of deep coal mines. The load transfer mechanism of cable bolts depends on several factors, such as the strength, deformation and geometric properties...

...A COMPARISON OF THE ANCHORAGE PERFORMANCE OF CABLE BOLTS BASED ON A NEWLY DEVELOPED TESTING METHODOLOGY *P.C. Hagan, J. Chen, and S. Saydam School of Mining Engineering, UNSW Australia Sydney, Australia, 2052 (*Corresponding author: p.hagan@unsw.edu.au) Innovations in Applied and Theoretical Rock...

... ABSTRACT The shearing behaviour of both steel rebar and hollow strand cable bolt across joints and shear planes in concrete blocks is examined experimentally. The steel rebars (bolts) were tested in 20, 40, 50 and 100MPa concrete blocks, subjected to different pretension loads of 0, 5, 10, 20...

... unterschiedlicher Versenkungslange determiniert. Die Ergebnisse zeigten im direkten Vergleich von epoxidbeschichteten, galvanisierten und normalen Stahldrahtlitzen beachtliche Unterschiede im Verhalten auf. Introduction Cable bolting has been used successfully in reinforcing the stopes in mines in Finland since...

... ABSTRACT: A Comprehensive laboratory study on the bond failure mechanism of conventional and modified geometry cable bolts revealed that despite slight difference in geometry, very different bond failure responses are obtained. Detailed studies showed that the difference is due to the amount...

... mechanics laboratory excavation fracture cable bolt application construction contribution evaluation novel technique deformation .General report Theme 4: In-situ tests and measurements, monitoring '. . " Rapport general Theme 4: essais et mesures ln-sltu, auscultation Generalbericht Thema 4...

... ABSTRACT: The aim of the laboratory pull-out tests set out in this paper was to test the applicability of a yielding cable bolt employing the debonding technique. In effect the aim was to determine the applicability of three different materials which could be used for debonding on wire strands...

... a broad shear zone with intense shearing concentrated along three or four major fault planes which acted as conduits for gold mineralisation, known as the Obuasi Fissure, and the less extensive Cote D'or, Ashanti and Insintsiam fissures. metals & mining stope cable bolt machine learning...

... ABSTRACT: Cable bolts are widely used as a principal means of support. The monitoring of the performance of reinforcement is critical in improving and optimizing reinforcement designs. This paper presents a case study where Stretch Measurement to Assess Reinforcement Technology (SMART...

... ABSTRACT: Tensioned cable bolts have been studied during and after their installation. The investigations have included the development of theories and computer programs, laboratory testing of the individual components and monitoring of cable bolt systems in the field. The cable bolt system...

... the safety of the mining staff and equipment. In particular to increase recovery (only about 20% at present), he examined the possibility to leave higher and wider stopes, combined with a reinforcement of the rib pillars by cable bolting. To this end, it was necessary to carry out the following works...

... monitoring reinforcement progressive distance grouted cable Reservoir Surveillance Effectiveness cable bolt excavation bench excavation safety instrumentation Reservoir Characterization construction complex formation Upstream Oil & Gas completion convergence slope stability tunnel...

... ABSTRACT: A comprehensive monitoring program, focussing on the pre-reinforcement of an unstable, laminated hanging wall by cable bolts as well as the support of unstable rock wedges in the back of wide overcuts, was undertaken at the Winston Lake Mine near Schreiber, Ontario, Canada. Results...

... metals & mining preplaced cable bolt cable bolt shear displacement cable boltfng Rosengren strand shear force dfsplacement displacement mfnfng slope reinforcement cable strength dilation angle golder associate pty ltd grout shear capacfty Preplaced cable bolts for slope...

... ABSTRACT: Stability problems in sublevel stoping caused by excessive 30 – 70 MPa horizontal stresses, have been largely eliminated at the Outokumpu Oy Pyhasalmi mine by pre-reinforcement with cable bolting, yielding pillars and stope shaping, rock destressing by sequential stoping technique...

... Include the design of stopes and drifts, the determination of certain blasting or excavation procedures, the evaluation of the 8tablIlty of openings and surroundings and the design of support systems. FIg..Z Subsidence due to mining operatlon8 Fig. 3 Cable bolting of open stopes Fig. 4 Experimental drift...