凍融循環對膨潤土布的滲透性影響

Effect of Freeze-Thaw Cycling on the Permeability Performance of Geosynthetic Clay Liners

施茂瑜(Mao-Yu Shih)

指導教授 ： 張達德

中原大學/工學院/土木工程學系/碩士(2007年)

https://doi.org/10.6840/cycu200700382

摘要

膨潤土布（Geosynthetic Clay Liner,GCL），又稱皂土布，為一種地工合成材，其主要用途為阻水。一般工程界常利用其特殊性質來減少液體滲流通過，以達到防滲阻水（Hydraulic Barrier）的目的。膨潤土布應用於各種工程，如渠道、池塘、蓄水池、垃圾掩埋場等。
國內外許多高山、高緯度地區，有明顯的季節變化，甚至有凍融現象的產生。
本研究為了解膨潤土布，在高緯度地區或是高山地區的適用性，對於環境因子中的溫度，做一探討。對於膨潤土（Bentonite）、膨潤土布（GCL）本身，除了進行多項定性測試與特性試驗外，亦進行凍融循環試驗。
本實驗模擬現地狀況，與理想狀態的實驗室條件相互比較，根據研究結果歸納得知：膨潤土布與膨潤土，並不會因為凍融循環對膨潤土布的滲透性，以及膨潤土本身的基本性質有所影響。可以進一步多增加凍融循環的次數，以探討膨潤土布經凍融循環後對滲透性的影響。進而了解膨潤土布的實際工程行為。

關鍵字

膨潤土 ； 凍融循環 ； 膨潤土布 ； 地工織物

並列摘要

Geosynthetic Clay Liner(GCL) is one of the hydraulic barriers. Using the special characteristic to decrease in hydraulic conductivity in engineering. GCL apply in the several projects, for example: channel, pool, catch basin, landfill, etc.
　　Mountains and high latitude zones is seasonal variation in evidence, more than freeze-thaw cycling.
　　On the study in order to know GCL is suitable for use in project which in the mountains or high latitude zones. Confer temperature factor in the environment influence. Many qualitative and property tests were be proceed, in addition to freeze-thaw cycling tests.
　　On the study simulates in situ and laboratory conditions, comparing two different results to know freeze-thaw cycling whether affect bentonite and GCL or not. To be confident that use the GCL in the field and do the best plan in the engineering.

並列關鍵字

Geosynthetic Clay Liner ； Bentonite ； Freeze-Thaw Cycling. ； Geotextile

參考文獻

【13】ASTM D5993-99 ,”Standard Test Method for Measuring Mass Per Unit of Geosynthetic Clay Liners”, American Society for Testing and Materials, West Conshocken, Pennsylvania, USA.

【15】ASTM D5890-95 ,”Standard Test Method for Swell Index of Clay Mineral Component of Geothetic Clay Liners”, American Society for Testing and Materials, West Conshocken, Pennsylvania, USA.

【23】Jason F. Kraus, Craig H. Benson, Allen E. Erickson, and Edwin J. Chamberlain, Members, ASCE, ”Freeze-Thaw Cycling and Hydraulic Conductivity of Bentonitic Barriers.”, Journal of Geotechnical and Geoenvironmental Enginnring, March 1997,pp. 229~238.

【36】謝啟萬，「地工合成材料常用檢測方法簡介」，地工技術雜誌第七十一期，pp. 13-28 (1999)。

【2】Mark H.Gleason,David E. Daniel,Gerald R. Eykhholt.”Calcium and Sodium Bentonite For Hydraulic Containment Applications.”,Journal Of Geotechnical And Geoenvironmental Engineering,May 1997.pp.438~445.