... operating pressure change curve artificial intelligence horizontal displacement well spacing natural gas storage thickness characteristic natural language displacement interlayer operation cavity salt rock vertical displacement beijing operating pressure constitutive model stability...

... that the longwall-induced horizontal movements are dependent on the depth of cover and overburden geology and concentrate along strong-to-weak rock interfaces. The study also shows that large horizontal displacements are more likely to occur under shallow cover with wet and inclined overburden strata, which may...

....5. Vertical stress distribution at the coal seam level predicted by the numerical model. Fig.6. Vertical displacement at the gas well after panel I and panel II are mined. Figure 7 shows the horizontal displacement in the subsurface along the gas wells after panel I and panel II are extracted...

.... The measured horizontal displacements were found to be larger than the vertical displacements, probably a consequence of the strong roof strata at this location. Analysis of the horizontal strain components indicated that most of the strain values were less than 0.5%. The progressive increase in rib sloughing...

... transportation horizontal displacement tunnel deformation excavation fracture vibration tunnel 1. INTRODUCTION The Tseung Kwan O Lam Tin Tunnel (TKO-LTT), Main Tunnel and Associated Works Section (Contract NE/2015/01), comprises a twin dual-lane 2.6 km-long road tunnel with the construction...

... transportation displacement underground structure horizontal displacement Upstream Oil & Gas earthquake loading Toyoura sand dynamic analysis Earthquake ground improvement Daikai station Reservoir Characterization central column optimum pattern box culvert countermeasure central wall case 1...

... installed in headgate entries around the stage loader and 60-m outby of the longwall face (solid). Upstream Oil & Gas reservoir geomechanics displacement fault plane horizontal displacement convergence metals & mining model 1 cross-section aa gate entry setup room numerical modeling...

... is a primary method of achieving required safety for underground excavations. Thus, the mechanics of bolt interaction with strata, especially at the onset of collapse, is of great interest. Immediately after development of an underground coal mine entry, vertical and horizontal displacements take place around...

... in horizontal position (xy plane). Upper shear box can move vertically (z) and tilt over x or y axis. Lower shear box lies over roller bearings and moves horizontally (x). Vertical and horizontal displacements are measured with six high-precision transducers (Fig. 3). Four, with 5 mm capacity, are positioned...

..., is stable and reaches equilibrium. Horizontal displacements for each model are presented in Fig. 10-Fig. 15. For the models with 0% and 1% rock bridges, all the history points show a continuous increase in horizontal displacement and do not reach equilibrium. The model assuming 2% rock bridges after...

... equipment. The measurements of the horizontal displacement perpendicular to the tunnel axis using an inclinometer are shown in Fig. 4, whereas Fig. 5 show vertical deformations using a slide deformeter. 0 2 4 6 8 10 12 14 16 18 20 22 24 -10 -8 -6 -4 -2 0 2 4 6 8 10 D ep th (m ) Horizontal displacment (mm...

... is the only driving force. However, the analysis results of horizontal displacement and horizontal velocity, which are governed by seismic inputs, in Method 1 perform mirroring behavior of the ones in Methods 2 and 3 along the axis of relative displacement=0 in Fig. 7(c) and relative velocity=0 in Fig. 7(d...

... phenomena was revealed by contours of incremental horizontal displacement around peak stress. A concentration of deformation leading to fracture was identified, as was a region of relaxation behind the damage zone. 1. INTRODUCTION In highly stressed rock, axial splitting may develop in an area adjacent...

... deformation The horizontal displacements at early stages of loading are first presented, when the process zone has not yet started to form. Fig. 3 shows the horizontal incremental displacement Du contour and profile along the cross section on the specimen surface under the load of 40 60% of peak from...

... simulation structural geology horizontal displacement Colorado School lcm test Upstream Oil & Gas physical property vertical displacement soft sand grout matrix boulder box 3 Reservoir Characterization displacement numerical simulation sand grout fracture principal stress bimrock disc...

... deformation discontinuity loading DDA horizontal displacement rock slope vertical displacement case 1 stability rock mass vertical tension crack ARMA/USRMS 05-771 Structural control on the stability of overhanging, discontinuous rock slopes Tsesarsky, M1. and Hatzor Y. H Department of Geological...

... numerical models of fracture surfaces can be inferred from quite unusual geostatistical methods and then successfully used in mechanical modeling. Upstream Oil & Gas geological modeling horizontal displacement rock fracture surface curvature experimental variogram residual value geologic...

... displacement prediction subsidence experience panel 1 panel 2 engineer handbook subsidence Twentymile Coal Company metals & mining Longwall Mining differential gradient Handbook Reservoir Characterization underground mining horizontal displacement extraction Maximum...

... SURROUNDING THE DIRECT SHEAR TEST The direct shear box was first utilized by Alexandre Collin in the 1840's to aid in the analysis of slope stability problems (Skempton, 1949). material model normal stress plane stress Profile Upstream Oil & Gas strength horizontal displacement direct shear...

... enhanced recovery constant rate year period investigation Upstream Oil & Gas horizontal displacement programme salt deposit quantify waterflooding displacement stability condition subsidence rock mass cavity deposit dissolution Reservoir Characterization extensometer Brine...