實驗室模擬透水混凝土應用在海堤對於波浪溯升與溫度變化之初步研究

Laboratory Simulation Study of Wave Run-up and Temperature ariation on Seawall by Applying Pervious Concrete

林岱瑋(Dai-Wei Lin)

指導教授 ： 李明君 ； 黃怡碩

朝陽科技大學/理工學院/營建工程系碩士在職專班/碩士(2011年)

摘要

透水混凝土是一種特殊型式的多孔混凝土，具有高透水性、多孔隙性與表面粗糙的特點。運用於鋪面時，美國環保署(EPA)認為適當使用透水混凝土是控制初始急流汙染及暴雨管理的最佳方式，因透水混凝土內部含有大量的孔洞，可以儲蓄水分，且可以加強地表與空氣的熱量與水分交換，降低地表溫度，達到減低熱島效應的功效；另外最近美國ACI 522R-06報告中提到透水混凝土可以應用在港灣工程，其施作範圍包括海濱結構、海堤和人工漁礁等方面，但國內外對於透水混凝土運用在海堤的溯升現象與材料本身的溫度變化資料缺乏；所以本研究針對溯升試驗與溫度變化兩種試驗，藉由與普通混凝土及瀝青混凝土的比較，初步了解透水混凝土消能與溫度變化的特性。
實驗室內模擬的波浪溯升現象結果顯示，三種不同坡面坡度的透水混凝土海堤試體的溯升高度都比普通混凝土海堤試體的溯升高度低；而使用不同流量時，透水混凝土海堤試體的溯升高度也都比普通混凝土海堤試體的溯升高度低。而在溫度變化的試驗結果顯示，透水混凝土材料本身在升溫與降溫的速率較接近瀝青混凝土，且二者的速率都比普通混凝土快許多。

關鍵字

透水混凝土 ； 混凝土 ； 波浪溯升 ； 混凝土海堤 ； 溫度變化

並列摘要

Pervious concrete is a special type of porous concrete with high permeability, multi-porous and rough surface characteristics. The U.S. Environmental Protection Agency (EPA) believes that properly using pervious concrete in pavement is the best method to control the first-flush pollution and storm water management. The permeable concrete contains a lot of holes, which can not only keep water to enhance the capability of exchanging heat and water between surface and air, but also can decline the surface temperature to reduce the urban heat island effect. According to the recent report of ACI 522R-06 in the US, pervious concrete can be used in harbors construction, including shore protection structures, seawalls and artificial reefs. In order to have information on applying pervious concrete on seawall run-up and the material temperature changes during the heated processing, the study focus on wave run-up test and temperature rising test to preliminary understand the energy dissipation for applying pervious concrete on sea structures and its temperature characteristics, through comparing the experimental results of pervious and asphalt concrete. From the laboratory simulation seawall results, it shows that the run-up heights of the pervious concrete specimens with three different slopes are lower than the run-up heights of the ordinary concrete specimens with three different slopes do. In different flowing rates, the run-up heights of pervious concrete specimens are lower than the run-up heights of concrete specimens do. From the designed temperature test, the results indicate that the speeds of heating and cooling rates of pervious concrete specimens are close to the heating and cooling rate of asphalt concrete; both of them are faster than normal concrete does.

並列關鍵字

Pervious Concrete ； Concrete ； Run-up ； Seawall ； Temperature Variation

參考文獻

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