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Phenomenological simulation of the seismic response of ground stabilized with colloidal silica
dc.creator | Papadimitriou, A. G. | en |
dc.creator | Agapoulaki, G. I. | en |
dc.creator | Andrianopoulos, K. I. | en |
dc.date.accessioned | 2015-11-23T10:42:48Z | |
dc.date.available | 2015-11-23T10:42:48Z | |
dc.date.issued | 2014 | |
dc.identifier.isbn | 9781138026889 | |
dc.identifier.uri | http://hdl.handle.net/11615/31663 | |
dc.description.abstract | Passive stabilization is a novel technique for mitigating the risk of seismic liquefaction in the non-cohesive foundation soil of existing structures. It entails the low-gradient injection of colloidal silica in the soil pores, a stabilizer material which transforms into a firm gel after a well-controlled time. This gelation enhances the mechanical response of the soil skeleton - pore fluid system. The microscopic mechanism of improvement has not yet been established, a fact prohibiting the formulation of constitutive models. This study explores the possibility of using existing constitutive models for simulating the response of stabilized sands. A bounding surface plasticity model for sands (NTUA-SAND) is used herein for this purpose, after appropriate re-calibration on the basis of published element test results on stabilized sand. Then, the efficiency of this modeling approach is explored through comparison with results from dynamic centrifuge tests. © 2014 Taylor & Francis Group, London. | en |
dc.source.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-84902314804&partnerID=40&md5=1e3f62cbc5262d6b3a7211641835c1ec | |
dc.subject | Constitutive models | en |
dc.subject | Gelation | en |
dc.subject | Geotechnical engineering | en |
dc.subject | Numerical methods | en |
dc.subject | Sand | en |
dc.subject | Silica | en |
dc.subject | Soils | en |
dc.subject | Stabilization | en |
dc.subject | Bounding surface plasticity model | en |
dc.subject | Existing structure | en |
dc.subject | Mechanical response | en |
dc.subject | Microscopic mechanisms | en |
dc.subject | Novel techniques | en |
dc.subject | Passive stabilization | en |
dc.subject | Phenomenological simulation | en |
dc.subject | Seismic liquefaction | en |
dc.subject | Soil liquefaction | en |
dc.title | Phenomenological simulation of the seismic response of ground stabilized with colloidal silica | en |
dc.type | conferenceItem | en |
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