... element techniques were performed to understand the rock mass deformation and the displacements along the joints. A dynamic and pseudo-static analysis was also conducted to assess the behavior of the tunnel subjected to dynamic loads (earthquake). In a discrete elements code, like UDEC, the driving force...

... deal displacement 12th Asian Rock Mechanics Symposium, Hanoi, Vietnam - The 2022 ISRM Sponsored Regional Symposium ©2022 ISRM, VSRM. ISBN: 978-604-357-103-5 Do Nhu Trang, Pham Quoc Tuan et al. (Eds.) A Study of Modeling Damage Zone Around Tunnel Excavation by DEAL.II Hong-Lam DANG University...

... to study the effect of shockwaves on the drillability performance of a particular drill rod in comparison to the rotary and percussive drilling methods. In this study, the diameter of drill bit was varied from 0.1 m to 0.25 m and the responses of the rock domain i.e., stresses and displacements developed...

... of the pile per unit length and y is the local horizontal displacement of the pile or the soil compression at the point of study. As the load bearing properties of horizontally loaded piles depend on the ultimate resistance P u of the soil around the pile in the shallow soil layer, it is important...

... loading experiments. In the present study, a high-precision contact model that used Boussinesq's solution to relate contact stresses to surface displacements in two half-spaces was employed to calculate the deformation of rock fractures subject to normal loading-unloading cycles. The normal stress...

... production monitoring reservoir surveillance excavation downhole sensor production logging production control optical fiber conference completion monitoring systems/intelligent wells ultra-deep foundation excavation lateral displacement displacement society iop publishing iop conf...

... publishing iop conf reservoir geomechanics displacement mechanism mining stability spall strength Abstract Coal wall spall causes serious mining difficulties, especially in deeply buried longwall working faces with a weak roof. To study the deformation and failure mechanisms of the coal wall...

... of large diameter primary water pipe of DN2700 and summarizes the relevant laws and control measures. It is find that when the temporary support of upper steps is removed during tunnel construction, the water pipe displacement will suddenly change. The surface settlement is about 1.9mm at most...

... Abstract Considering monitoring noise and complexity of landslide movement, quantify the uncertainty of landslide displacement prediction is crucial and challenging. Traditional data-driven models such as long short-term memory networks (LSTM), support vector regression, and extrema learning...

... support is somewhat lacking. structural geology geological subdiscipline environmental science 861 geologist reservoir characterization deformation reservoir geomechanics yuntunbao tunnel rock type tunnel conference displacement chinese journal equation coefficient stability...

.... The basic formulation of DDA The mesh of DDA is real rock blocks and produced by real joints. DDA is a step-by-step FEM style, displacement-unknown, implicit, engineering numerical method. DDA is for large movement, discontinuous, dynamic or static, forward and backward analyses. 1.1. Block Deformations...

... conference construction reservoir geomechanics environmental science 861 displacement deep foundation pit reservoir characterization excavation excavation deepening thickness basement strength 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth...

... reservoir geomechanics particle breakage triangular discretization environmental science 861 specimen journal strength displacement contraction society iop publishing iop conf conference voronoi discretization simulation 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf...

... stability are proposed. geologist mechanism environmental science 861 infiltration landslide reactivation society iop publishing iop conf displacement conference deformation reactivation xiajiang hydraulic project landslide reactivation situ geology rainfall reactivation mechanism...

...) The calculation model which combines the Newmark and the limit analysis method can reflect the difference between the near-fault and the far-field ground motions. 2) The IM-DM curve with indexs of PGA and displacement has a better fitting effect. The vulnerability analysis based on IDA can be used to evaluate...

... faces, and reduce the influence of excavation disturbance on the surrounding rock of the stop working side. When the tunnel breakthrough construction was completed, the displacement difference of surrounding rock on both sides of the breakthrough position was controlled within 100 mm, and the maximum...

... Abstract Describing the phenomena and laws of rock mass-aging deformation is an important research area on bearing plate tests. Presently, no unified analytical solution exists for characterizing time-dependent displacements of flexible and rigid circular bearing plate tests. Because...

..., and thermally induced pile head displacement are determined and compared. The results show that the surrounding soil thermal imbalance under climatic conditions with nonsymmetrical thermal demands is more significant than that under climatic conditions with balanced thermal demands. Moreover, notably lower...

... to the bottleneck in efficiency. cloud computing dda zhang detection society iop publishing iop conf environmental science 861 parallelization algorithm geology geological subdiscipline conference geotech geologist reservoir geomechanics tongji university equation displacement stiffness...

... characterization geomaterial fluid dynamics flow in porous media society iop publishing iop conf evolution viscosity geology geological subdiscipline thermal expansion coefficient thm permeability formulation geologist reservoir geomechanics environmental science 861 conference displacement...