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題名 | 灌漿成效與灌漿量分析--以鯉魚潭水庫壩基為例=Analysis on the Amount and Effectiveness of Grouting--A Case Study on Li-Yu-Tan Dam Foundation Grouting |
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作者 | 楊朝平; Yang, Chau-ping; |
期刊 | 農業工程學報 |
出版日期 | 20000300 |
卷期 | 46:1 2000.03[民89.03] |
頁次 | 頁81-92 |
分類號 | 443.92 |
語文 | chi |
關鍵詞 | 壩基; 灌漿; Lugeon值; 灌漿量; Dam foundation; Grouting; Lugeon value; Amount of grouting; |
中文摘要 | 本文以重視應用技術的研究手法, 分析鯉魚潭水庫壩基隔幕灌漿施工記錄資料, 以觀察灌漿成效並達估算灌漿量之目的,分析樣本為 3532 個灌漿孔段的數據。於觀察灌漿 成效方面,從孔段的 Lugeon 值或單位長度水泥用量 Lg 值累積曲線遷移情形得知,經過批 次灌漿處理後壩基岩盤的 Lugeon 值或 Lg 值皆有明顯的減小,表示隔幕灌漿成效相當良好 ,且可達設計水密性要求。 於估算灌漿量方面,本研究提出使用 Lugeon 值、Lg 值的平均 值關係來估算總水泥用量之方法, 發現於壩基的不同區位其 Lugeon 值、Lg 值的平均值間 具高度相關性( R �� =0.95 ),只要樣本分佈型態具同質性則雖不屬常態分佈型者,此法 亦具相當程度的估算能力,其所估算之總水泥用量為施工記錄的 72 %,估算準確度高於設 計的 43 %。 |
英文摘要 | In this study, a practical technique is used to observe the effectiveness and estimate the amount of grouting. The construction records on Li-Yu-Tan Dam are selected as an illustrated example. From 3532 stages of grouting hole, Lugeon value, grouting quantity per unit length Lg and so on are collected. According to the transition of accumulation curves for Lugeon value and Lg, the effectiveness of curtain grouting was identified. For estimating the amount of grounting, a mean value method was proposed in this study. It is found that mean value of Lg increase as Lugeon value increase, and with a high corelationship of R �� =0.95, at the four specified different areas of dam site. As long as the distributions of Lg at the four specified different areas of dam site are similar, the amount of grouting could be estimated by the proposed method with a better accuracy, even Lg is not normally distributed. The estimated amount of grounting is 72 percent of those actually used in Li-Yu-Tan Dam, which is higher than the designed amount (43% of actually used). |
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