台灣地區砂石資源供需現況與需求預測

The Sand and Gravel Supply-Demand Status and The Demand Forecasting

昌明道(Ming-Daw Chang) ； 陳家榮(Chia-Yon Chen) ； 陳逸偵(Yet-Jen Chen)

《鑛冶：中國鑛冶工程學會會刊》 43卷1期 (1999/03) Pp. 24-39+143

https://doi.org/10.30069/MM.199903_43(1).0002

摘要

目前台灣地區砂石料源主要仍以河川砂石為主，由於過去長期的依賴，盜採、濫採嚴重，使得近年來時常有砂石短缺的危機出現。再加上有關各種砂石可採量及蘊藏量的相關資料各不相同或資料久遠，容易造成大家對砂石可採量推估不一致之困擾，而且國內對砂石需求量之推估各有不同，其值差異亦甚大。為解決上述問題，本研究乃重新對砂石的供給及需求現況進行評估確認，然後再以最终需求法確實估計國內砂石需求量，以為未來國內砂石需求量估計之依據。根據研究結果發現：利用最終需求法推估出民國81年至88年砂石需求量。結果與利用水泥（1:6.50）瀝青（1:19）配比推算的砂石總需求量頗為接近。顯示過去利用水泥推估砂石需求量所採用的配比1:9似乎太高。依據本研究分析結果，水泥與砂石之配比應在1:6至1:7之間較合理。

關鍵字

砂石 ； 需求預測

並列摘要

The sand and gravel supply in Taiwan area mainly comes from the fluvial and stream channels. Due to the long-term development and excessive excavation without plan, the supply of high quality sand and gravel from stream channels has been faced with the shortage crisis in the past few years. Besides, the data on the sand and gravel supply-demand status in Taiwan were either not available or out-of-date. It also resulted in the inconsistency in the reserve estimation. To solve the above problems, the purposes of this study are to resurvey completely and thoroughly the supply and demand status of the sand and gravel in Taiwan, and then to estimate the demand by using the end-use approach which is considered as the more accurate estimation method. The results of this study show that the estimates of the sand and gravel demand in Taiwan area by using end-use method are similar to the estimates by using mix ratio method with the ratios of the cement-sand and asphalt-sand 1:6.50 and 1:19 respectively. It reveals that the mix ratio estimation with the cement-sand ratio 1:9 commonly used in the earlier studies is too high. The mix ratio of the cement-sand from 1:6 to 1:7 is more appropriate.

並列關鍵字

Sand and gravel ； Estimation of Supply-demand