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Keywords: displacement
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Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-009
...7th International Symposium on ln-51tu Rock stress May 10-12,2016, Tampera, Finland Johansson & Raasakka (ads) ISBN 978-951-758-806-1 ISSN 0356-9403 A NEW ATTEMPT OF INVERTING TECTONIC STRESS TENSOR FROM COSEISMIC DISPLACEMENT APPLIED TO WENCHUAN EARTHQUAKE Hongyan Zhang (zhy0720@126.com) Key...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-015
...7th lnt.mational Symposium on ln.Silu Rock Stress May 10..12, 201 B, Tampon, Finland Johansaon & Rusakka ls) ISBN 978-951-758-606-1 ISSN 0356-9403 CONTINUED ROCK STRESS AND DISPLACEMENT MEASUREMENTS COMBINED WITH NUMERICAL MODELING AS AN ACTIVE, REALISTIC ROCK ENGINEERING TOOL Nghia Quoc Trinh...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-052
... cyclic shear behavior of non planar infilled joints at CNS boundary condition. It is also observed that there is no effect of CNS boundary condition on shear behaviour of infilled joints at high normal stress and infill thickness. displacement normal stress shear cycle infilled joint shear...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-038
... mechanical analysis knowledge management hydraulic fracturing Fracture Zone Raasakka Tampere reservoir geomechanics displacement underground train station excavation Roundhouse Symposium international symposium Reservoir Characterization ground transportation Finland Johansson rock cover in...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-059
... mines the corresponding condition is the Constant Normal Stiffness, which restricts the dilatation. When dilatation is supressed the normal load is increased. This may lead to shearing of the asperities. If both the vertical and horizontal displacement are recorded during CNL testing, the dilatation may...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-030
... the control of crustal medium's rheological mechanism in the Tibetan plateau, the eastward displacement components become bigger and bigger from west to east in the Tibetan plateau. The maximum appears in the region south to Ganzi - Yushu - Xianshuihe fault belt. It implies that the mass under the...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-060
... Abstract Excavation of long deep tunnels through adverse ground conditions by shielded TBMs requires thorough rock stability analyses to evaluate the possibility of entrapment of the machine. This refers to the assessment of ground pressure and displacement in tunnel walls. For this purpose...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-055
... inexpensive method to monitor stress state change caused by mining activities. The method is based regression between linearly elastic modelling and displacement measurements. The regression in the method is formed with least squares method. machine learning Artificial Intelligence Raasakka...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-025
... project included in-situ stress measurement campaigns, stability analyses and rock displacement monitoring during the excavation phase. The stress measurements were conducted with hydraulic fracturing method. In this paper, the test results and their analysis are presented. Comparison of the predicted and...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-024
... stress measurement Reservoir Characterization displacement strain gauge rosette excavation mass condition excavation profile rock mass failure MPa Sintef indication Upstream Oil & Gas instability tunnel procedure rock mass host rock Rock Stress and Earthquakes Xie (ed.) © 2010...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-015
... center of this arrangement. Reservoir Characterization reservoir geomechanics accuracy validity evaluation gauge critical laboratory investigation displacement procedure concrete block equation installation Situ stress Determination compaction diagonal Duvall vertical direction...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-050
... of the distortion as mining coal seam with coal pillar Because coal seam mining sometimes produce surface subsidence disasters, the analysis of deformation field on coal seam mining is very necessary.[6] Through the analysis on mining with coal pillar of the verti- cal displacement is beneficial to...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-111
..., Hast (N. Hast) first carried out the work of earth stress measurements in the Scandinavian Peninsula. Reservoir Characterization lithosphere back-analysis method application structural geology displacement earthquake prediction excavation stress measurement Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-045
... also it makes the network generalization into interpolation problem, which can improve the network learning speed and training precision. We can compute the displacement boundary conditions of the geological model by utiliz- ing the highly nonlinear characteristics of the artificial neural network, and...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-061
... grouting bolt; model 3: mesh-anchor support- ing, and both sides laid out two rows of 45 base angle grouting bolts. The vertical displacement of model1 (figure 5 a) shows that serious convergence distortion happened because the roof and bottom are not controlled effec- tively. Severe floor heaving...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-094
... structures to earthquake loading has been reviewed using finite difference numerical method. In modeling, Tabas, Naghan and El-Centro earthquakes are used as typical earth shakes. The changes in amplitude of displacement, velocity and acceleration as a function of changing desired model parameters are...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-124
... ABSTRACT: This paper summarizes the typical features and their regularities of the observed coseismic surface ruptures by Wenchuan Earthquake in terms of the three faults, ground locations, ground geomaterials, rupture geometries and rupture displacements. The paper then uses both the...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-085
... occurrence of earthquakes on the fault by means of viscoelastic finite element method, with gravity being included in the model. The result shows that the average earthquake recurrence time on the Longmen Shan fault is very long, ∼3,257 years. Basically, the modeled coseismic displacements have...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-119
... which are estimated based on experimental results. In this paper the linear slip weakening is used with this formulation: Where µs = static coefficient of friction; µd = dynamic coefficient of friction; and Lc = critical slip distance; x = displacement; µ(x) = coefficient of fric- tion corresponding to...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-017
... Method (CBDM). In this paper, the theory of the CBDM is described, as well as the prototype instrument with the laser displacement sensor. Analyzing influence factors on measurement result theoretically, it makes clear that stress change within rock mass can be estimated by the CBDM. 1 INTRODUCTION...

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