“…Fifty years in the semiconductor underground…”

“…Deep underground science & engineering…”

Tabla de Contenidos: “…About the Editors -- Preface to "Advanced Underground Space Technology" -- Advanced Underground Space Technology -- Field Measurements for Traffic Noise Reduction in Highway Tunnels Using Closed-Cell Aluminum Foam Board -- A New Design Method of Shield Tunnel Based on the Concept of Minimum Bending Moment -- A Suitability Evaluation Method of Urban Underground Space Based on Rough Set Theory and Conditional Entropy: A Case Study in Wuhan Changjiang New Town -- Verification and Comparison of Direct Calculation Method for the Analysis of Support-Ground Interaction of a Circular Tunnel Excavation -- Behaviour of Square and Rectangular Tunnels Using an Improved Finite Element Method -- Intelligent Classification of Surrounding Rock of Tunnel Based on 10 Machine Learning Algorithms -- Asymmetric Force Effect and Damage Analysis of Unlooped Segment of Large-Diameter Shield under Synchronous Propulsion and Assembly Mode -- Experimental Study on the Influence of Slurry Concentration and Standing Time on the Friction Characteristics of a Steel Pipe-Soil Interface -- Design Optimization Method of Feet-Lock Steel Pipe for Soft-Rock Tunnel Based on Load-Deformation Coordination -- Study on the Restraint Effect of Isolation Pile on Surface Settlement Trough Induced by Shield Tunnelling -- Effect of Jack Thrust Angle Change on Mechanical Characteristics of Shield Tunnel Segmental Linings Considering Additional Constrained Boundaries -- Effects of Sidewall Brightness on LED Lighting Environment and Visual Performance in Road Tunnels -- Elastic Modulus Prediction Model of Foamed Concrete Based on the Walsh Formula -- Failure Mechanism Analysis and Optimization Analysis of Tunnel Joint Waterstop Considering Bonding and Extrusion -- Seismic Response Analysis of Anchor Joint in Shield-Driven Tunnel Considering Soil-Structure Interaction -- Waterproof Performance of Sealing Gasket in Shield Tunnel: A Review -- Experimental Study and Engineering Application of the Spatial Reticulated Grid Bolt-Shotcrete Support Structure for Excavation Tunnels -- Modeling of Water Losses in Hydraulic Tunnels under Pressure Based on Stepwise Regression Method…”

“…In Leaving Fossil Fuels Underground, an international team of well-established scholars and early career researchers takes a global perspective to demonstrate the challenges and possibilities of reaching this goal. …”

“…Underground Railroad Primary Source Document…”
Acceso restringido, con credenciales UPSA

“…Underground Railroad Primary Source Document…”
Acceso restringido, con credenciales UPSA

Tabla de Contenidos: “…Intro -- Cubierta -- Portadilla -- Créditos -- Portada -- Preface -- Contents -- 1 Introduction -- 1.1 Problem statement and motivation -- 1.2 Research objective and scope of the work -- 1.3 Outline -- 2 Background -- 2.1 Introduction -- 2.2 Effect of earthquakes on underground structures -- 2.2.1 Effect of ground shaking on underground structures -- 2.3 Reported damage to underground structures during seismic events -- 2.3.1 A history case: The Daikai Station collapse -- 2.4 Drained seismic response -- 2.4.1 Free field approach -- 2.4.2 Soil-structure interaction approach -- 2.5 Undrained seismic response -- 2.5.1 Bobet (2003, 2010) -- 2.5.2 Okhovat and Maekawa (2009) -- 2.6 Constitutive models -- 2.6.1 Commonly used models -- 2.6.2 Complex models -- 2.7 Pore pressure models -- 2.7.1 Martin, Finn and Seed (1975) -- 2.7.2 Dobry, Pierce, Dyvik, Thomas and Ladd (1985) -- 2.7.3 Ivšić (2006) -- 2.8 Pore pressure generation in coarse-grained deposits -- 2.8.1 Numerical analyses -- 2.8.2 Cyclic large-size laboratory tests -- 2.9 Summary and discussion -- 3 Constitutive Model -- 3.1 Introduction -- 3.2 The cyclic nonlinear elastoplastic model -- 3.2.1 Hyperbolic behavior -- 3.2.2 Cyclic loading -- 3.2.3 Update of the small-strain shear modulus (Go) -- 3.2.4 Coupled shear-volumetric strains with excess pore pressures accumulation -- 3.2.5 Yield criterion and plastic strain -- 3.3 Implementation of the elastoplastic model in FLAC -- 3.3.1 Explicit, time-marching scheme -- 3.3.2 Lagrangian analysis -- 3.3.3 Mixed discretization scheme -- 3.3.4 Model implementation -- 3.4 Summary and discussion -- 4 Constitutive Model Verification -- 4.1 Introduction -- 4.2 Stage 1: stiffness degradation, comparison with 1-D codes and monotonic test -- 4.2.1 Stiffness degradation under drained cyclic simple shear -- 4.2.2 Comparison with 1D codes…”

Materias:

“…Bringing together top international researchers this book provides a worldwide coverage of underground economic activities. It presents estimates of the underground economy for 145 countries - the most comprehensive ever undertaken; an in-depth examination of the underground economy for a select number of these countries; and an analysis of the public policy implications through an assessment of how various governments have attempted to address this issue. …”

Acceso restringido usuarios UPSA

Materias:

Acceso restringido usuarios UPSA

Acceso restringido usuarios UPSA