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Keywords: ground surface
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1359
... was evaluated at a coal mine site for monitoring microseismicity induced by the longwall caving process. The sensor network was constructed using a single 3 km long fiber cable installed in a 250 m deep hole and buried in shallow trenches at the ground surface, around the longwall panel that was being mined...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0209
... ABSTRACT: Systematic calculations have been done in order to analyze the response of a medium with a hilly surface to explosions created below the ground surface when a cavity can be present. Random surfaces with a given correlation function are studied. The influence of the roughness...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0172
... Characterization ground surface Indian Institute deformational behavior soft ground tunnel settlement 1. INTRODUCTION Due to the rapid increase in the infrastructure development, there is a terrible need to understanding the behaviour of geotechnical structures before the collapse and during the failure...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0636
... macroscopic propagation modes can be predicted. Fluid Dynamics Simulation Ladd wave propagation Upstream Oil & Gas displacement elementary cube algorithm flow in porous media Reservoir Characterization ground surface node boundary condition elastic element propagation angular spring...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-490
... a fractured sandstone formation located 341 m (1118 feet) below ground surface with MICP using conventional field delivery technology. MICP is a developing novel technology with the potential to seal fractures to reduce the risk of leakage from the subsurface. calcium carbonate. A mechanism researched...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7523
... installation for tunnel construction using one- and two-pass lining system via three-dimensional finite element numerical modeling. The tunnel is assumed to have a circular cross section in Chicago glacial clays with a diameter of about 3.8 m and a centerline at a depth of 10.5 m below the ground surface...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-187
... of caving of the hangingwall. metals & mining Upstream Oil & Gas strength factor Artificial Intelligence reservoir geomechanics Printzsköld orebody weak zone Reservoir Characterization neural network modeling variation ROCK mass CHARACTERIZATION rock formation ground surface...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-477
... the abandoned mine has been identified. Upstream Oil & Gas Reservoir Characterization residence subsidence event ground surface pillar mining operation recovery ratio investigation grout hole metals & mining void curvature relative elevation knowledge management basement strata...
Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-0124
... topography Malmberget numerical model metals & mining ground surface orebody geometry geometry Orebody boundary stress 1. INTRODUCTION 1.1. Problem Description Underground mining inevitably results in stress redistri- bution around mined areas. Changes in the stress state are important...
Proceedings Papers

Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-1049
... available for growing wine grapes. The wine making process also requires significant space for fermentation and storage of wine in barrels until the wines mature and can be bottled. rock dowel large-diameter wine cave Ground Support ground surface wine cave excavation Reservoir Characterization...
Proceedings Papers

Paper presented at the The 35th U.S. Symposium on Rock Mechanics (USRMS), June 5–7, 1995
Paper Number: ARMA-95-0237
...- ered a vertical column and formulated the stress state of the earth by assuming that lateral strains are zero and the medium is elastic as: (7o = 17" (7' = pgH (2) where v: Poisson's ratio and H: depth from ground surface. Salustowicz (1968) derived the following expres- sions by assuming...
Proceedings Papers

Paper presented at the The 34th U.S. Symposium on Rock Mechanics (USRMS), June 28–30, 1993
Paper Number: ARMA-93-0625
... ABSTRACT INTRODUCTION When estimating the state of stress at any depth, z, in a rock mass due to gravity, it is commonly assumed that (1) the rock mass is an isotropic and linear elastic continuum, (2) the ground surface is horizontal, and (3) the state of stress is described by two principal...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0519
..., Morgantown, W. Va., USA ABSTRACT: A subsidence monitoring program over a longwall panel was established (1) to explore the impacts of dynamic subsidence on the ground surface and structures and (2) to correlate the movements between the structures and their corresponding points on the ground. The program...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0511
... at shallow depths. The cavities are naturally unstable, while weathering of the roof of cavity, construction of new structures on the ground surface, change in the level of ground water or occurrence of earthquakes may accelerate the deterioration of roof strata above the cavities.These af- fects may become...
Proceedings Papers

Paper presented at the The 27th U.S. Symposium on Rock Mechanics (USRMS), June 23–25, 1986
Paper Number: ARMA-86-0283
... of this monitoring program is to study the interaction between the ground surface and a structure during a subsidence event. Data from such a study should enhance the understanding of the mechanisms that produce structural damage and aid in the design of structures that resist such damage. This paper describes...
Proceedings Papers

Paper presented at the The 25th U.S. Symposium on Rock Mechanics (USRMS), June 25–27, 1984
Paper Number: ARMA-84-0727
... meter depth at a site in northern West Virginia. This paper describes mining-related stress changes and movements at mine level, displacements within the overburden, ground surface subsidence and groundwater level variations. Subsidence approached 40 per cent of the mine height and continued more than...
Proceedings Papers

Paper presented at the The 14th U.S. Symposium on Rock Mechanics (USRMS), June 11–14, 1972
Paper Number: ARMA-72-0263
... metals & mining Reservoir Characterization Upstream Oil & Gas ground surface extraction ratio structural geology amd plant site Rock mechanics subsidence distortion reservoir geomechanics strength hillman vein operation procedure pillar vein surface distortion safety...
Proceedings Papers

Paper presented at the The 6th U.S Symposium on Rock Mechanics (USRMS), October 28–30, 1964
Paper Number: ARMA-64-310
..., including the ground surface, and an understanding of the mechanics of the system must involve consideration of this whole region. Thus, this problem stands apart from those concerning comparatively small openings such as shafts and roadways (if we leave aside their interaction with large scale workings...

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