Utilization of RadialCollector Well Facilities onReservoir Silt Setting for Tsengwen Reservoir as an Example

• Main Authors: Po-Han Shan, 謝博涵
• Other Authors: Ting,Cheh-Shyh
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/09946244071661130796

碩士 === 國立屏東科技大學 === 土木工程系所 === 102 === Taiwan has abundant precipitation under a sub-tropical climate, and more than 90% of total annual precipitation occurs during the wet season in Southern Taiwan. The hydrological characteristics of the plain are unique with short. As a result, it takes only a few hours from upstream rainfall to downstream runoff. Therefore, reservoir for the water resources storage has been recognized for more flexible utilization.The Tsengwen Reservoir is the largest capacity in Taiwan. The experienced geological reformation from the Earthquake 921 and Flood disaster 88, mountainous soil have become loose, making its silting problem is particularly serious.The study is therefore to use radial collector well facilities and to take groundwater from the reservoir silt sitting. This type of radiation collector well designed from the hydrogeological manual by the validation. By means of hydraulic sand boxes model laying indoor radiant tube modules under silt in the reservoir water and measurement of pumping wells, real value, and formula design of catchment value comparison have been approved by comparing the designed formula. Well radiation formula, the drawdown and the permeability coefficient K and S value are sensitive to the value of, the Department of the important parameters affecting the catchment. From test analysis, the maximum water discharge intake from reservoir silt for two types of radiation wells, viz: single layer with single-tube type with level of the water and single layer with multi-tube type with level of the water separately. The maximum water discharge with 0.1m thick of sand is 34.4CMD using a single layer with single-tube type with level of the water; The maximum water discharge with 0.3m thick of sand is 34.4CMD using a single layer with multi-tube type with level of the water. The stable intake facilities using single-tube is suggested for practical use.