- Influence of soil–structure interaction on seismic collapse resistance of super-tall buildings
- M. Li ; X. Lu ; X- Lu. ; L. Ye
- Book Title / Journal: Journal of Rock Mechanics and Geotechnical Engineering
- Year: 2014 , Volume: 6
- Rock Mechanics
- Keywords: soil-structure interaction ; substructure ; numerical simulation ; seismic resistance
- Description
- Numerous field tests indicate that the soil–structure interaction (SSI) has a significant impact on the dynamic characteristics of super-tall buildings, which may lead to unexpected structural seismic responses and/or failure. Taking the Shanghai Tower with a total height of 632 m as the research object, the substructure approach is used to simulate the SSI effect on the seismic responses of Shanghai Tower. The refined finite element (FE) model of the superstructure of Shanghai Tower and the simplified analytical model of the foundation and adjacent soil are established. Subsequently, the collapse process of Shanghai Tower taking into account the SSI is predicted, as well as its final collapse mechanism. The influences of the SSI on the collapse resistance capacity and failure sequences are discussed. The results indicate that, when considering the SSI, the fundamental period of Shanghai Tower has been extended significantly, and the collapse margin ratio has been improved, with a corresponding decrease of the seismic demand. In addition, the SSI has some impact on the failure sequences of Shanghai Tower subjected to extreme earthquakes, but a negligible impact on the final failure modes.
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- Numerical analysis of thermal process in the near field around vertical disposal of high-level radioactive waste
- H.G. Zhao ; H. Shao ; H. Kunz ; J. Wang ; R. Su ; Y.M. Liu
- Book Title / Journal: Journal of Rock Mechanics and Geotechnical Engineering
- Year: 2014 , Volume: 6
- Rock Mechanics
- Keywords: high-level radioactive waste HLW) ; Vertical disposal ; Engineered barrier system (EBS) ; Thermal conductivity propertie
- Abstract
For deep geological disposal of high-level radioactive waste HLW) in granite, the temperature on the HLW canisters is commony designed to be lower than 100°C. This criterion dictates the dimension of the repository. Based on the concept of HLW disposal in vertical boreholes, thermal process in the near field host rock and buffer) surrounding HLW canisters has been simulated by using different methods. The results are drawn as follows (a) the initial heat power of HLW canisters is the most important and sensitive parameter for evolution of temperature field; (b) the thermal properties and variations of the host rock, the engineered buffer, and possible gaps between canister and buffer and host rock are the additional key factors governing the heat transformation; (c) the gaps width and the filling by water or air determine the temperature offsets between them. PDF |
- Modified Formulation, ε-Regularization and the Efficient Solution of Hydraulic Fracture Problems
- A.M. Linkov ; G. Mishuris
- Book Title / Journal: Effective and Sustainable Hydraulic Fracturing
- Year: 2013 , Series: Chapter 31
- Numerical & Constitutive Modeling
- Keywords: hydraulic fracturing ; analytical formulation ; numerical simulation
- Description
- Analytical models and numerical simulation are important means to increase understanding and to enhance efficiency of hydraulic fracturing. The reasons for developing and using them are clearly explained, for instance, by Mack and Warpinski [1]. Thus, there is no need to dwell on them. Rather we focus on improving analytical and numeric methods used to the date. Our objective is to suggest new approaches for developing accurate, robust and stable simulators on the basis of recent analytical and computational findings [2-6].
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- Initial investigation into the carbonation of MgO for soil stabilisation
- A. Al-Tabbaa ; C. Unluer ; M. Liska ; Y.L. Yi
- Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, September 2-6 2013
- Year: 2013
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- A customised earth retaining system for deep excavation works
- T.W. Tan ; S.K. Tang ; J.M. Lim ; K.B. Poh
- Year: 1999
- Earth Retaining Structures ; Deep Excavations
- Description
- Geotechnical Aspects of Underground Construction in Soft Ground – Proceedings of the International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground – IS-TOKYO’99
Tokyo - Japan
July 19-21, 1999
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- In-situ CBR testing by indirect methods
- M. Livneh
- International Conference on Soil Mechanics and Geotechnical Engineering - 12th International Conference on Soil Mechanics and Foundation Engineering (Rio De Janeiro)
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- The Theoretical Bearing Capacity of Soils on a Rock Foundation
- M. Livneh
- International Conference on Soil Mechanics and Geotechnical Engineering - 6th International Conference on Soil Mechanics and Foundation Engineering (Montréal)
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- Snap-back testing of piles to estimate nonlinear lateral stiffness and damping properties
- M. J Pender ; S. Beskhyroun ; N. M. Sa’don ; R. P. Orense ; L.M. Wotherspoon ; S. Arvanaghiangh ; L. B. Storie ; M. D. Tidbury ; C. B. Lambert ; J.Melster ; M. Liew
- Australia - New Zealand Conferences on Geomechanics - 11th Australia New Zealand Conference on Geomechanics
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- Deep Foundations ; Soil Dynamics In-Situ
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- A customised earth retaining system for deep excavation works
- K.B. Poh ; J.M. Lim ; S.K. Tang ; T.W. Tan
- Underground Construction in Soft Ground Symposium (TC204) - IS TOKYO '99
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- Liquéfaction de la fondation silteuse d’un barrage
- M. Lino ; G. Post
- International Conference on Soil Mechanics and Geotechnical Engineering - 11th International Conference on Soil Mechanics and Foundation Engineering (San Francisco)
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- The Bearing Capacity of Footings on Nonhomogenous Clays
- M. Livneh ; J. Greenstein
- International Conference on Soil Mechanics and Geotechnical Engineering - 8th International Conference on Soil Mechanics and Foundation Engineering (Moscow)
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- Foundation Design / Construction
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- Techniques of Field Measurement and Sampling
- A. vonMoos ; H. Lenssink ; M. Vargas ; R. Jones ; J.L. Serafim ; J.B. Folque ; W.H. Ward ; J. Kerisel ; D.J. Palmer ; C. vanderVeen ; J. Kolbuszewski ; E.C.W.A. Geuze ; H. Zweck ; M.P.P.dos Santos ; B.O. Skipp ; J. Vuorinen ; I.M. Litvinov ; T.K.E. Kallstenius ; T.K. Chaplin ; B. Rajčević ; B. Rajčević ; W. Aichhorn ; L. Ménard ; A. DVOŘÁK ; J. Florentin ; M. Vargas ; K. Terzaghi ; G. Meardi ; H.U. Smoltczyk
- International Conference on Soil Mechanics and Geotechnical Engineering - 4th International Conference on Soil Mechanics and Foundation Engineering (London)
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- Initial investigation into the carbonation of MgO for soil stabilisation
- Y.L. Yi ; M. Liska ; C. Unluer ; A. Al-Tabbaa
- International Conference on Soil Mechanics and Geotechnical Engineering - 18th International Conference on Soil Mechanics and Geotechnical Engineering (Paris)
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- Stabilization of Soil for Constructional Purposes
- I.M. Litvinov ; B.A. Rzhanitzin ; V.M. Bezruk
- International Conference on Soil Mechanics and Geotechnical Engineering - 5th International Conference on Soil Mechanics and Foundation Engineering (Paris)
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- Stabilization
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- Prediction of CBR Values Under Covered Areas
- M. Livneh ; I. Ishai
- Australia - New Zealand Conferences on Geomechanics - 2nd Australia New Zealand Conference on Geomechanics
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