...STUDY ON ACOUSTIC WAVE PROPAGATION IN FRACTURED ROCK MASS UNDER HIGH IN-SITU STRESS OF MODEL TEST AND DAMAGE CONSTITUTIVE RELATION *LI Xinping, ZHAO Hang, LUO Yi and WU Pingan Hubei Key Laboratory of Roadway Bridge and Structure Engineering 122 Luoshi Road Wuhan, China Gezhouba Group NO.1...

... Reservoir Characterization model test structural geology reasonable delay time delay time model test cms-5 circle blasthole parallel cut 13th international congress electric detonator electric detonator Engineering multiturn vertical blasthole blasthole effect analysis...

...Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8 Geomechanical model test of underground caverns in salt rock Y.R. Liu, B. Li, F.H. Guan & Q. Yang State Key Laboratory of Hydroscience and Hydraulic Engineering...

... ABSTRACT We conducted a centrifuge model test on earthquake-induced rock slope failure. The test results were compared with Safety Factors (SFs) related to the sliding surface, obtained by the limit equilibrium method; the stresses on the sliding surface were estimated by equivalent linear...

...Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8 Study and application of visualized model test technologies for gas storage cluster in salt rock L.J. Cheng, Z.K. Li & B. Xu State Key Laboratory of Hydro-science...

... of the largest arch dam in world under construction„ the evaluation of dam stability was obtained. In the meantime, 3D geomechanical model tests have been conducted and through them reinforcement measures were studied. Replacement of faults and altered rock zones by concrete; reinforcing abutment slopes and dam...

... number of laboratory tests were performed. In addition, large scale model test were carried out to demonstrate the development of a nearly homogeneous and isotropic swelling pressure. The results of the large scale model tests were interpreted numerically based on the models for stress-strain behaviour...

... ABSTRACT New techniques and methods for 3D geo-mechanical model test are presented in this paper. The new model material NIOS with high density and low cost; the so-called DPSS (Discrete Principal Stress Surface) loading concept, the loading and monitoring system for the generation of the 3D...

... Reservoir Characterization Wellbore Design reinforcement reservoir geomechanics model test geomechanical model test hydraulic fracturing abutment coefficient rock mass overload safety China fem calculation Lijiaxia wellbore integrity strength overload safety factor anchorage...

... Upstream Oil & Gas normal stress shear resistance shear strength strength rock mass distribution composite rock model rock model foundation Reservoir Characterization hard rock shear plane shear stress equation model test numerical analysis soft rock stress distribution...

... ABSTRACT: This paper presents a laboratory study concerning shotcrete as a tunnel lining applied on irregular tunnel surfaces. The problem concerned is first presented. A description of the model test is given and major findings from the study are presented. The main conclusion gained from...

... reservoir geomechanics Upstream Oil & Gas Reservoir Characterization Wellbore Design Ertan wellbore integrity model test hydraulic fracturing abutment rock foundation rock mass complex rock formation normal load jointed rock mass physical model test rockmass Computation...

... ABSTRACT: The seismic responses of abutment rock mass of two arch dams were analysed by F.E.H. The influence of boundary conditions of the calculation model on the dynamic response of the abutment were studied. The results agreed quite well with those of in-situ, measurements and model tests...

... ABSTRACT; is paper describes a novel method for the calculation of a systematic bolting around an under-ground opening. Bolts and rock mass are combined to an anisotropic substitute material. Its parameters are determined in plane model tests and numerical studies. The most important results...

... ABSTRACT: In this paper, an integral geomechanical model test for Jintan arch dam is described. The dam is situated in complex rock formations. The failure mechanism, stability factors, and the interaction between arch dam and abutments are given. RESUME: Ce document decrit le test de...

... of Buildings and Surveying, People's Republic of China ABSTRACT: A modelling design approach for the preliminary dimensioning of underground opening supports .is presen- ted in this paper. The method is based on the model test results under the condition of plane deformation. It is to be used for the analysis...

... jedoch nicht naher eingegangen, da bisher nur ein einziger Versuch damit durchgefuehrt wurde. wurden versuche nr tunnelachse shallow rock-bolted tunnel tunnel Abb ohne 0 Durchmesser standsicher model test Oberflachensetzungen Versuch Nr den versuchen nr tabelle 3 Anker egger...