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論文中文名稱:不飽和土壤反覆入滲行為之初步探討 [以論文名稱查詢館藏系統]
論文英文名稱:Preliminary study on the effect of wetting/drying in unsaturated soil. [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木與防災研究所
畢業學年度:103
畢業學期:第二學期
中文姓名:賴政平
英文姓名:Zheng Pling Lai
研究生學號:100428026
學位類別:碩士
口試日期:2015/07/30
指導教授中文名:魏敏樺
口試委員中文名:陳卓然、陳彥璋、陳世楷
中文關鍵詞:不飽和土壤、基質吸力、剪力強度、反覆入滲三軸試驗
英文關鍵詞:unsaturated soil, matric suction, wetting/drying, SWCC
論文中文摘要:反覆入滲為土壤在乾-濕循環下的含水量變化,乾循環為模擬表層土在未降雨時,部份表層土內部孔隙水份滲透到深層土,促使表層土的土壤含水量降低,濕循環為模擬表層土在持續降雨時含水量提高。然而在這種乾-濕循環的情況下,土壤之基質吸力亦會改變。本研究透過物理性質試驗及土壤水份特徵曲線試驗以瞭解該地區土壤物理性質,並用靜三軸做壓密排水試驗以瞭解該地區土壤力學性質,用三軸反覆入滲試驗,在固定圍壓及空壓的情況下,藉由不同大小之基質吸力變化及不同基質吸力維持定值的時間長度,以改變土壤含水量,並探討土壤各種基質吸力變化下對水體積模數的影響。
論文英文摘要:Because of the nature of the climate, soils are generally subjected to repeated drying and wetting cycles. The drying process leads to the reduction of water content in the soil, while the wetting process leads to an increase of water content. As a result, the matric suction of soil changes in the drying/wetting cycles. The purpose of this preliminary study is to examine the behavior of unsaturated soil under such processes. A series of soil physical properties tests and soil-water characteristic tests has been performed on the study soil. Subsequently, a drainned static triaxial test was conducted under various matric suction levels and periods to simulate the drying/wetting cycles. The results were evealuated in terms of water content variation and volumetric modulus of water.
論文目次:摘 要 i
致謝 ii
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 研究動機及目的 1
1.2 研究方法與內容 1
1.3 論文架構 2
第二章 文獻回顧 4
2.1 概述 4
2.1.1 非飽和土壤性質 4
2.1.2 非飽和土壤基質吸力理論 6
2.2 土壤收縮-回脹曲線 8
2.3土壤水份特徵曲線理論 14
2.3.1 Burdine Model (1953) 16
2.3.2 Gardner Model (1956) 16
2.3.3 van Genuchten Model (1980) 17
2.3.4 Fredlund and Xing (1994) 17
2.3.5 Pereira and Fredlund (2000) 18
2.4非飽和三軸壓縮試驗 18
2.4.1常吸力CD試驗 19
2.4.2三軸反覆入滲試驗 19
2.5總土體變形 22
2.5.1 Fredlund and Rahardjo (1993)體積變形理論 22
2.5.2 排水水體積模數 23
2.6各乾濕循環試驗比較 25
第三章 試驗原理及步驟 27
3.1流程介紹 27
3.2土壤來源 28
3.3取土方式 28
3.4 三軸儀器系統及試驗 31
3.4.1 三軸試驗儀器 31
3.4.2 試驗步驟 34
3.4.3 飽和壓密排水試驗 36
3.4.4非飽和壓密排水及反覆入滲 37
3.5 Wykeham Farrance 三軸試驗理論 38
3.5.1 ΔVWTF-cell 39
3.5.2 ΔVWTF-cell-water和ΔVpipe 40
3.6單向度壓密試驗理論 42
第四章 試驗結果分析與討論 45
4.1紅土之物理特性 45
4.2單向度壓密試驗結果 52
4.4土壤水份特徵曲線及參數 58
4.5常吸力CD試驗參數及曲線 62
4.5.1 莫耳-庫侖破壞包絡線 77
4.5.2 體積比-淨正向應力 78
第五章 剪切-反覆入滲之討論 89
5.1 剪切-反覆入滲之結果 89
5.2原始基質吸力對軸向應變影響 89
5.3試體應變曲線校正 96
圖5.12( 101
5.4水體積模數變化 102
5.4.1 剪切水體積模數Ew變化 102
5.4.2 入滲水體積模數Hw變化 104
5.4.3 反覆入滲試驗e-w 124
第六章 結論與建議 126
6.1結論 126
6.2建議 127
參考文獻 128
論文參考文獻:[1] ASTM D4318 – 10 (2010). "Standard Test Methods for Liquid Limit, Plastic Limit,and Plasticity Index of Soils."

[2] ASTM D698 – 12 (2012). "Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft3 (600 kN-m/m3))."
[3] ASTM D854 – 10 (2010). "Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer."
[4] ASTM D2435/D2435M – 11 (2011). "Standard Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Loading."
[5] ASTM D3142/D3142M – 11 (2011). " Standard Test Method for Specific Gravity.
[6] API Gravity, or Density of Cutback Asphalts by Hydrometer Method.
[7] ASTM D6836 − 02 (2002). "Standard Test Methods for Determination of the Soil Water Characteristic Curve for Desorption Using Hanging Column, Pressure Extractor,Chilled Mirror Hygrometer, or Centrifuge.
[8] ASTM D4943-08 (2008). Standard Test Method for Shrinkage Factors of Soils by
The Wax Method.
[9] C. Airo Farulla and A. Ferrari, “Controlled suction oedometric tests: analysis of some experimental aspects,” Advanced Experimental Unsaturated Soil Mechanics, 2005, pp.43-48
[10] Kuwano and Reiko, "Change of physical and mechanical properties of sandy soil
due to repeated water infiltration,” Deformation Characteristics of Geomaterials
sand, pp.829-832
[11] D.G.Fredlund , H.Rahardjo and M.D.Fredlund, “Unsaturated soil Mechanics in Engineering Practice”, 2012, pp.731-733
[12] D.G. Fredlund, J. Stone, J. Stianson and A. Sedgwick” Determination of Water Storage and Permeability Functions for Oil Sands Tailings,” Tailings and Mine Waste, 2011
[13] S. Tripathy, K.S, Subba Rao, and D.G. Fredlund, “Water content – void ratio swell-shrink paths of compacted expansive soils”, 2002, Can. Geotech. J, pp. 938- 959
[14] D.G. Fredlund and A.Xing, “Equations for the soil-water characteristic curve”, 1994, Canadian Geotechnical Journal, pp. 521-532
[15] D.G. Fredlund , “Comparison of soil suction and one-dimensional consolidation characteristics of a highly plastic clay”, 1964, The Emergence of Unsaturated Soil Mechanics, pp. 193-201
[16] Jotisankasa , M. Coop and A. Ridley, "The mechanical behavior of an unsaturated compacted silty clay”, 2007, Geotechnique 59, pp.415-428
[17] D.G.Fredlund, H. Rahardjo, and T. Ng, "Effect of pore-air and negative pore- water pressures on stability at the end of construction."
[18] I Meilani, H. Rahardjo, and E-C Leong. “Pore-water pressure and water volume change of an unsaturated soil under infiltration conditions.” 2005, Canadian Geotechnical Journal, pp. 1509-1531
[19] D.G. Fredlund, Harianto Rahardjo, "Volume change theory", Soil Mechanics for Unsaturated Soils. 1993, pp. 346 - 373
[20] D.G. Fredlund, D Sheng and Jidong Zhao, "Estimation of soil suction from the soil-water characteristic curve”, 2011, Canadian Geotechnical Journal, pp. 186- 198
[21] Wykeham Farrance, “Volume change and axial stress corrections”, Corrections on the specimen volume change and axial force in the Wykeham Farrance, 2005, pp. 13-33
[22] 鄭雅仁(2009)。台灣部分地區土壤水份特徵曲線之預測,碩士論文,國立台北科技大學土木工程系。
[23] 吳永銘(2011)。濕吸力平衡路徑與水入滲對非飽和紅土強度之影響,碩士論文,國立台北科技大學土木工程系。
[24] 謝昇翰(2012)。非飽和山崩堆積岩屑剪力強度之探討,碩士論文,國立台北科技大學土木工程系。
[25] 曾煒迪(2012)。非飽和低塑性粉土/黏土剪力強度之探討,碩士論文,國立台北科技大學土木工程系。
[26] 王建評(2002)。高爐水泥及其參料對台中紅土之剪力強度特性改良研究,碩士論文,朝陽科技大學營建工程系。
[27] 楊樹榮(2002)。路基土壤反覆載重下之回彈與塑性行為及模式建構,碩士論文,國立中央大學土木工程系。
[28] 鄭鈺諠(2010)。不飽和夯實土壤之動態性質,碩士論文,國立中央大學土木工程系。
[29] 譚志豪(2002)。黏土壓縮與壓密行為之研究"博士論文,國立中央大學,土木工程系。
[30] 蔡孟棻(2005)。以土壤水份特性曲線評估不飽和土壤邊坡穩定性,碩士論文,國立台灣科技大學,營建管理系。
[31] 拱祥生(2011)。不飽和紅土基質吸力行為及其在工程上之應用,博士論文,
國立台灣科技大學營建管理系。
[32] 陳建豪(2012)。不飽和淺層崩積土壤基質吸力預測公式之研究,碩士論文,
國立台灣科技大學營建管理系。
論文全文使用權限:同意授權於2020-08-31起公開