The Back Analysis on the Volumetric Water Content of Unsaturated Soil Model Slopes
碩士 === 國立雲林科技大學 === 營建工程系碩士班 === 99 === Recently, climate change in Taiwan has caused more extreme weather conditions and resulted in many rainfall-induced slope failures. To predict the transient volumetric water content (VWC) in an unsaturated slope during rainfall, an optimization analysis method...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2011
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/16853531751160211743 |
| Summary: | 碩士 === 國立雲林科技大學 === 營建工程系碩士班 === 99 === Recently, climate change in Taiwan has caused more extreme weather conditions and resulted in many rainfall-induced slope failures. To predict the transient volumetric water content (VWC) in an unsaturated slope during rainfall, an optimization analysis method based on two dimensional finite element method and Levenberg-Marquart method was proposed. The proposed methodology was verified and proven to be applicable to simulate the transient VWC distributions. A series of inverse analyses on the measured transient volumetric water content of two model slopes was performed. The effects of monitoring point location, the number of monitoring point, and the duration of monitoring time on the optimized soil parameters were presented. Among them, the location of monitoring point is the most crucial factor that may influence the results of inverse analyses. It is suggested that using the monitoring data from a sensor embedded in a shallow location can enhance the precision of inverse analysis.
|
|---|