Estimation of P-wave velocities for unsaturated geo-materials
Using P-wave velocity as a proxy for degree of saturation is useful in many applications. The effect of saturation on P-wave velocity of geo-materials has been frequently modeled using Biot-Gassmann equation. However Biot-Gassmann equation is not able to fully account for the effect of partial satur...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/97052 http://hdl.handle.net/10220/13069 http://www.unsat.eng.ku.ac.th/Proceeding/ |
| _version_ | 1811695160573034496 |
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| author | Leong, Eng Choon Cheng, Z. Y. |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Leong, Eng Choon Cheng, Z. Y. |
| author_sort | Leong, Eng Choon |
| collection | NTU |
| description | Using P-wave velocity as a proxy for degree of saturation is useful in many applications. The effect of saturation on P-wave velocity of geo-materials has been frequently modeled using Biot-Gassmann equation. However Biot-Gassmann equation is not able to fully account for the effect of partial saturation. In this study, the effects of degree of saturation on P-wave velocity of rocks are investigated. Modifications to the Biot-Gassmann equation are then suggested to improve the estimation of P-wave velocities for unsaturated rocks. The modifications are evaluated with several data sets and were found to provide an improved estimate of P-wave velocity for unsaturated rocks to within ±10%. |
| first_indexed | 2024-10-01T07:19:03Z |
| format | Conference Paper |
| id | ntu-10356/97052 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:19:03Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/970522019-12-06T19:38:20Z Estimation of P-wave velocities for unsaturated geo-materials Leong, Eng Choon Cheng, Z. Y. School of Civil and Environmental Engineering Asia-Pacific Conference on Unsaturated Soils: Theory and Practice (5th : 2012 : Pattaya, Thailand) Using P-wave velocity as a proxy for degree of saturation is useful in many applications. The effect of saturation on P-wave velocity of geo-materials has been frequently modeled using Biot-Gassmann equation. However Biot-Gassmann equation is not able to fully account for the effect of partial saturation. In this study, the effects of degree of saturation on P-wave velocity of rocks are investigated. Modifications to the Biot-Gassmann equation are then suggested to improve the estimation of P-wave velocities for unsaturated rocks. The modifications are evaluated with several data sets and were found to provide an improved estimate of P-wave velocity for unsaturated rocks to within ±10%. Published Version 2013-08-12T08:08:09Z 2019-12-06T19:38:20Z 2013-08-12T08:08:09Z 2019-12-06T19:38:20Z 2012 2012 Conference Paper https://hdl.handle.net/10356/97052 http://hdl.handle.net/10220/13069 http://www.unsat.eng.ku.ac.th/Proceeding/ en © 2011 Kasetsart University. This paper was published in Asia-Pacific Conference on Unsaturated Soils: Theory and Practice and is made available as an electronic reprint (preprint) with permission of Kasetsart University. The paper can be found at the following official URL: [http://www.unsat.eng.ku.ac.th/Proceeding/]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | Leong, Eng Choon Cheng, Z. Y. Estimation of P-wave velocities for unsaturated geo-materials |
| title | Estimation of P-wave velocities for unsaturated geo-materials |
| title_full | Estimation of P-wave velocities for unsaturated geo-materials |
| title_fullStr | Estimation of P-wave velocities for unsaturated geo-materials |
| title_full_unstemmed | Estimation of P-wave velocities for unsaturated geo-materials |
| title_short | Estimation of P-wave velocities for unsaturated geo-materials |
| title_sort | estimation of p wave velocities for unsaturated geo materials |
| url | https://hdl.handle.net/10356/97052 http://hdl.handle.net/10220/13069 http://www.unsat.eng.ku.ac.th/Proceeding/ |
| work_keys_str_mv | AT leongengchoon estimationofpwavevelocitiesforunsaturatedgeomaterials AT chengzy estimationofpwavevelocitiesforunsaturatedgeomaterials |