Download or read book Centrifuge Modeling of Liquefaction Remediation at Bridge Sites written by A. Balakrishnan and published by . This book was released on 1998 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the completion of a new major centrifuge based earthquake simulation facility and a series of model tests that were conducted using the facility. The model tests used centrifuge modeling to investigate remediation of liquefaction at a bridge site. The tests were designed to help evaluate the extent of soil improvement required to mitigate the consequences of liquefaction.

Download or read book Liquefaction Remediation at Bridge Sites Centrifuge Data Report for BAM04 written by Ariyaputhirar Balakrishnan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquefaction Remediation at Bridge Sites Centrifuge Data Report for BAM02 written by Ariyaputhirar Balakrishnan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquefaction Remediation at a Bridge Site written by Ariyaputhirar Balakrishnan and published by . This book was released on 2000 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquefaction Remediation at Bridge Sites Centrifuge Data Report for BAM05 written by Ariyaputhirar Balakrishnan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquefaction Remediation at Bridge Sites Centrifuge Data Report for BAM01 written by Ariyaputhirar Balakrishnan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquefaction Remediation at Bridge Sites Centrifuge Data Report for BAM03 written by Ariyaputhirar Balakrishnan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Centrifuge Modeling of Liquefaction in Layered Soils written by Gregg Leland Fiegel and published by . This book was released on 1992 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Centrifuge Testing of Remediation of Liquefaction at Bridge Sites written by A. M. Balakrishnan and published by . This book was released on 1998 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Centrifuge Modeling of Soil Liquefaction written by Abbas Abghari and published by . This book was released on 1982 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Centrifuge Modeling for Soil pile bridge Systems with Numerical Simulations Accounting for Soil container shaker Interaction written by Mahadevan Ilankatharan and published by . This book was released on 2008 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Modeling of Liquefaction and Comparison with Centrifuge Tests written by and published by . This book was released on 2004 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Centrifuge Model Test Program for the Study of Liquefaction written by and published by . This book was released on 1997 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a considerable history associated with the use of centrifuge models to achieve realistic data of soil behaviour, including the phenomenon of liquefaction. In this work, the development of an experimental program to establish a database of the behaviour of level saturated sand beds under earthquake shaking is discussed, and a method for the interpretation of the data in terms of conventional design parameters is demonstrated. A review meeting of technical specialists has been held at Waterways Experiment Station to discuss the proposed experimental program and method of analysis, and this has provided strong endorsement of the approach.

Download or read book Use of Containment Walls as a Liquefaction Remediation Method for Existing Buildings written by H. Mitrani and published by . This book was released on 2006 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook on Liquefaction Remediation of Reclaimed Land written by Port and Harbour Research Institute and published by CRC Press. This book was released on 1997-01-01 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Loose sandy deposits sometimes change into a liquid state during earthquakes. This is called liquefaction and poses a serious problem in waterfront areas. When the sandy deposits liquefy, structures built on those deposits are seriously affected; for example, heavy structures settle and light buried structures heave. Reliable remediation with respect to liquefaction is necessary in geotechnical engineering practice. This book presents methodologies for assessment of liquefaction potential and remedial measures to mitigate liquefaction for reclaimed land. These methodologies are based on continuous research and decades of experience in design and construction of port facilities in Japan, where liquefaction often poses a serious problem in design and construction.

Download or read book Interlaboratory Studies to Evaluate the Repeatability of Dynamic Centrifuge Model Tests written by K. Arulanandan and published by . This book was released on 1994 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the VELACS (VErification of Liquefaction Analysis Using Centrifuge Studies) Project, a series of dynamic centrifuge model tests were duplicated at different Universities (U.C. Davis, UC Berkeley, Caltech, Cambridge, Colorado, MIT, Princeton, and RPI) to assess the repeatability of the test results and to provide a data base for a Class A (before the event) type prediction of the test results. This paper will present the results obtained on different centrifuges, the evaluation of the repeatability of the results, and discussions on the usefulness of the results for the validation of constitutive models and numerical procedures. The experience and lessons learnt from this practice show that standardization of dynamic centrifuge modeling is very important in order to achieve repeatability of test results. The results presented here are based on the materials published in a Proceedings of the VELACS Symposium.

Download or read book Evaluation of the Performance of Piled Bridge Abutments Affected by Liquefaction induced Ground Deformations Through Centrifuge Tests and Numerical Analysis Tools written by Richard James Armstrong and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Deformations of a bridge approach embankment due to earthquake-induced liquefaction in the underlying soil can impose large loads or demands on the piled abutment and pile foundations embedded through the embankment. However, because the piled foundation is embedded through an embankment of finite width, the foundation may actually restrain the movement of the embankment and thus create smaller displacements and loads on the piled foundation than would be expected based on analyses that uncouple the embankment deformations from the bridge response. To investigate this phenomenon, three centrifuge tests were conducted. Each test modeled two identical bridge approach embankments underlain by liquefied soil, with a total of six embankments modeled. The embankments were constructed of dry sand and underlain by saturated loose sand, which liquefied during shaking. Each centrifuge test included one embankment with a pile group at its crest and one embankment without a pile group. Results from the centrifuge tests provided physical evidence that the resisting forces from piles can reduce the embankment displacements resulting from earthquake-induced liquefaction in the underlying soils. This beneficial mechanism, called "pile pinning," should be included in practice when analyzing or designing piled bridge abutments in liquefiable ground, as it could result in significant economic savings (e.g., soil remediation or foundation retrofit). Two tools to account for this pile-pinning effect in design are: (1) equivalent static analyses (ESA) and (2) non-linear deformation analyses (NDA). Both ESA and NDA were used to analyze these centrifuge tests, with the purpose of evaluating these tools' predictive capabilities. For these centrifuge tests, ESA significantly over-predicted displacements and demands on the piles, whereas NDA provided a better comparison (although still with a tendency to over-predict). The better predictive capability of NDA was attributed to several modeling capabilities not possible with ESA. The relative merits of ESA and NDA for current practice depend on how decisions in design may be affected. Future advances can be expected with NDA methods, including improvements in the constitutive models, numerical methods, and software usability. Future advances are unlikely to be realized with ESA methods given their inherent simplifications of the physical processes.