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Keywords: Thickness
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-144
... thickness of 3, 5 and 7 mm. Finally, full-scale loading tests were carried out to evaluate a structural reinforcement of shield segments. From the test, it was confirmed that the structural loading capacity of the shield segment could be improved by a coating of the sprayed waterproofing membrane. 1...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-159
...-absorbing rock bolts should be used in burst-prone rock masses. Upstream Oil & Gas isrm international symposium plastic zone Reservoir Characterization strength rock bolt length bolt length reservoir geomechanics Thickness asian rock mechanics symposium 29 support system deformation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-180
... displacements in the middle of the roof beam are quite greater than what is predicted by the theory of elasticity for a beam of equal thickness sagging under its own weight, but there is no roof failure in the sense of caving. This phenomenon can be explained by the formation of a purely compressive arch within...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-146
... correctly used, the numerical models were first calibrated by the laboratory results with different concrete panel thickness without using welded wire mesh. After that, the performance of the combined concrete layer and welded wire mesh was examined by using the calibrated concrete model and mesh model and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-166
..., it must be ensured that the requirements are both technically relevant, achievable and measurable. Therefore, the hydrogeological descriptions must closely link to possible technical solutions for project specific requirements and to the monitoring set up. structural geology Thickness isrm...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-003
... approach of mining to areas of higher stress concentrations such as abutment stresses from multiple seam mining or anomalous geologic conditions, and (4) roof beam thickness, joint spacing, and stiffness characteristics, which influence cave conditions and dynamic loading. The latter variables, combined...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-098
... peak shear strength of the specimen is determined by the weaker joint. In contrast, under higher normal stress, the peak shear strength is attained when the tensile fractures initiate in the interlayer rock, and it has also relevancy to the JRC of double joints and interlayer thickness. Additionally...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-094
... geology shield construction materials water conveyance tunnel steel bar isrm international symposium sabzkouh water conveyance tunnel water pressure rock mass concrete lining tunnel asian rock mechanics symposium 29 tunnel lining Thickness kazhdomi formation lining Evaluation of Induced...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-114
... Thickness Sasaki travel time curve tunnel geophone 8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan Experimental Study of Excavation Damaged Zone Assessment by Seismic Exploration Using Tunnel Blasting Masashi NAKAYAa*, Kazuhiro ONUMAa, Hiroyuki YAMAMOTOa, Teruo SASAKIa and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-105
... whose joints are filled with clay material of varying thicknesses. Modifications adopted tothe resonant column apparatus for testingstiffmaterials are explained in this paper. Shear and compression wave velocities were obtained for three different confining pressures.Damping ratios and attenuation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-017
... comparison of test results shows that TSLs, in spite of their significantly smaller application thickness, match and in most cases exceed the tensile strength of shotcrete. It is hoped that the comparison made in this paper would provide additional encouragement for the mines to initiate the application of...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-050
... when reaching the envelope and others follow it for a while. There is no general rule for when and where on the envelope grouting should be stopped. A parameterization of the penetrability on the envelope is provided in this paper. For the parameterization, the grout rheology, the fracture's thickness...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-157
... to solve floor damage process is feasible. The scope of its plastic area can be used to reserve the safe thickness in water outburst from coal seam floor and the maximum effective spacing of protected seam. metals & mining complex reservoir criterion FEM strength reduction coalbed...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-153
... present study with an additional consideration of interface resistance.Moreover, a series of simple experiments using a block of compacted moist sand confined by parallel rigid walls were conducted with variation of thickness, width and length. The inclined angle of bedding plane was gradually increased...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-169
... effective in weak formations. Reservoir Characterization displacement shotcrete plastic zone empirical method diameter lining rock mass classification penstock tunnel rock bolt permanent support system support system tunnel classification Thickness lattice girder rock mass rudbar...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-165
... decrease advancing time. Polymer spraying application is practical and there is no rebound problem in sprayed-polymer application. Candidate polymer types were compared within. reservoir geomechanics Thickness steel impact strength polymer fiber elasticity modulus polymer material application...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-065
... flat platen loading represents direct tensile strength, completely. reservoir geomechanics flat platen diameter tensile stress construction materials strength specimen flat platen loading hydraulic fracturing Thickness tensile strength test stress distribution standart jaw loading...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-146
... SYNOPSIS: Most of the coalfields of India consists multi-seam mining conditions, where a majority of the coal seams have 9m or less inter-burden parting thickness called contiguous seams. Many of these contiguous seams have weak and laminated parting. Underground extraction of contiguous seams...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-007
... Abstract: A new sampling method using thick water-soluble polymer was developed to obtain high quality drillcores from more difficult grounds like fractured zones or heavily weathered rocks. Yanagisawa et al. (2004) suggested some mechanisms for this sampling technique like Weissenberg effect...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-166
... Abstract: Mining subsidence of overlying strata is a three-dimensional problem which has a large calculation scope. The present numerical methods have given answers to rock mechanics aspect, however, the answers are inadequate, especially on conditions of greater inclination and thick...

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