強降雨坡地崩塌潛勢評估與預警技術研發-子計畫:天然刺激源結合水力試驗推估坡地含水層水力及力學參數;Estimations of Hydro-Mechnical Properties in Colluvial Aqufiers by Integrating Responses of Artificial and Natural Hydraulic Stresses

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題名:	強降雨坡地崩塌潛勢評估與預警技術研發-子計畫:天然刺激源結合水力試驗推估坡地含水層水力及力學參數;Estimations of Hydro-Mechnical Properties in Colluvial Aqufiers by Integrating Responses of Artificial and Natural Hydraulic Stresses
作者:	倪春發;董家鈞
貢獻者:	國立中央大學應用地質研究所
關鍵詞:	地球科學;土木水利工程;防災工程
日期:	2012-12-01
上傳時間:	2014-03-17 14:26:19 (UTC+8)
出版者:	行政院國家科學委員會
摘要:	研究期間：10108~10207;The spatial distribution of hydraulic and the associated mechanical properties in colluvial aquifers can provide key information for landslide assessments and public constructions. Due to the high cost and technical difficulties to measure aquifer properties for colluvial aquifers, the traditional hydraulic and soil tests may not be applicable for regional scale slope failure problems. However, in most mountainous areas the natural hydraulic stresses such as the strong rainfall and the high variation of groundwater tables in colluvial aquifers are typically available. With suitable integrations of hydraulic responses from different stresses and scales, the high-resolution hydraulic and mechanical properties in a colluvial aquifer system can be obtained. Motivated by the need to characterize regional scale colluvial aquifer systems, the objectives of the three-year project are (1) to develop, test, and verify a numerical inverse model to estimate hydrogeological and mechanical properties for colluvial aquifer systems, and (2) to conduct laboratory and field scale experiments for verification and application of the developed inverse model. Based on the concept of hydraulic tomography surveys, the cross-scale hydraulic fluctuations caused by either natural or artificial stresses will be automatically integrated with a co-kriging optimization technique. This study starts with the model tests for synthetic colluvial aquifers. Then the 2-D laboratory sandbox experiments will be conducted to verify the developed model for laboratory scale problems. With the cooperation of all involved sub-projects, the developed mode is expected to provide high resolution of hydrological and mechanical properties for assessing field scale slope failure problems on 28K to 31K of Taiwan 18 line in Alishan area. Future applications of the developed model and the associated measurement techniques can be the characterizations of regional scale slope failure problems and developments of landslide or debris flow warning systems.
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
顯示於類別:	[應用地質研究所] 研究計畫

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