... is often based on the expected TBM’s rate of advance. In this respect, the most recognized TBM performance prediction models correspond to the CSM (Colorado School of Mines) model (e.g. [1-2]) and to the NTNU (Norwegian University of Science and Technology) model (e.g. [3-4]) and adjustments factors...

... management. This technique, which is sensitive to small terrain deformations, can be used for an early detection of movements, monitoring and risk assessment [1-3]. geology risk management geologist europe government environmental science 833 theory rock engineering correspond risk...

... strength correlation specimen Upstream Oil & Gas Coimbra porosity classification dolomitic limestone ISRM Reservoir Characterization Portugal correspond uniaxial compressive strength University central portugal Schmidt rebound hardness mechanical characterization hardness...

... Characterization Bulletin correspond MPa ijolite sample Upstream Oil & Gas height-to-diameter ratio 2 uc value aegirine rock sample uniaxial compression relation Khibiny massif discontinuity hard rock failure texture ABSTRACT: The paper describes the results of hard rock samples testing...

... Reservoir Characterization frequency spatial attenuation mechanical property machine learning brotóns vanheerden Upstream Oil & Gas correspond coefficient different temperature structural geology correlation specimen bulk density calcarenite heated san julián carbonate rock Eissa...

... province, Spain). Selected rocks correspond to two sandstones, a calcirudite and a brecciated marble. The mechanical behaviour was characterized by means of both static (uniaxial compression test) and dynamic (ultrasounds) methods. Porosity, rock fabric (grain-supported or matrix-supported) and fracture...

... the base sediments of sandstone and siltstone and up to 1.0m thick beds of carbon and anthracite. creep factor Simulation knowledge management strength correspond Upstream Oil & Gas service life Rock mass Creep Engineering numerical analysis stress state tunnel creep mechanics...

... with a resolution of 0.1 MHz, which correspond to a strain resolution of ~2 ? (microstrain) and temperature resolution of 0.1°C. Figure 1. Schematic of the monitoring system Measurement accuracy claims from the equipment supplier are 20 ? for strain and 1°C for temperature. Communication cables used are standard...

... Rock mechanics compression test reservoir simulation elastoplastic model correspond application Upstream Oil & Gas micromechanical approach international journal kondo laboratory test levasseur micromechanical model excavation initial stress anisotropic damage geomaterial loading...

... multi-stage creep deformation rate one-stage creep test loading step good result multistage creep test Reservoir Characterization Lemaitre correspond marl creep viscoplastic strain deformation Rock Mechanics in Civil and Environmental Engineering Zhao, Labiouse, Dudt & Mathier (eds) ©...

... was successful and the error evaluation shows that the result is promising for reliable engineering predictions of new projects. Upstream Oil & Gas scour depth downstream machine learning Discharge Veronese Artificial Intelligence data basis correspond spillway azamathulla hydraulic...

... of underground structures and the surrounding soil or rock mass as elements of a united deformable system and on the analytical solutions of the corresponding plane problems of elasticity theory for a ring supporting the opening in a heavy semi-infinite linearly deformable medium subjected to the action...

..., the delineated areas should include the whole failure nucleus and should not contain irrelevant events, which do not correspond to strong event triggering. Any restrictions on the geometry (Sobolev et al. 1991) should not be imposed both at the delineation stage and at the correction stage, when additional (new...

... proper length of the release pins. The modified cell is illustrated in Fig. 1. Details of the connector system is given by Kaarigstad (1995). reservoir geomechanics criterion correspond axial circuit Completion Installation and Operations piston Reservoir Characterization axial strain...

..., that triggers the failure process, is recognized. Two limiting cases, corresponding to an edge and a Griffith crack, are considered. RESUME: On presente un modèle pour predire la pression de claquage atteinte lors d'une mise en charge hydraulique d'un puits de forage, eflectuee à vitesse constante de...

... overburdens, such as the Simplon, St-Gotthard and Mont-Blanc tunnels (see table 1). The Simplon tunnel has higher than average temperatures, compared to other tunnels. In the Mont-Blanc tunnel, the maximum temperature is relatively low and does not correspond to the maximum cover; water circulation may...

... to be dispersed in space and in time. structural geology dimension rock massif Reservoir Characterization Upstream Oil & Gas concentration december 5 1993 fault plane metals & mining explosion heterogeneity correspond MPa reservoir geomechanics displacement structure heterogeneity...

... geomechanics Reservoir Characterization reservoir simulation approximation rock salt subsidence overburden formula plane evolution initial stress symmetry internal pressure Upstream Oil & Gas cavern loading pattern axis geomechanical simulation Wellbore Design displacement correspond...

... management Upstream Oil & Gas variation tension test Reservoir Characterization thermally stress peak cyclic test reservoir geomechanics strength phenomenom MPa Wellbore Design acoustic emission correspond tension behaviour compressibility test loading monotonic test Rock Mech...

... greywacke identification technique system identification Reservoir Characterization right bank displacement input signal identification Funcho dam deformability dam foundation correspond rockmeter determination construction output signal system property schist LNEC foundation Eurock...