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研究生:徐偉強
研究生(外文):WEI-CHIANG HSU
論文名稱:高壓噴射灌漿成型樁切削音訊監測與驗證
論文名稱(外文):Monitoring and Evaluating the Cutting Diameter of Jet Grouting Pile with Acoustic Method
指導教授:廖洪鈞廖洪鈞引用關係
指導教授(外文):Hung-Jiun Liao
口試委員:廖洪鈞
口試委員(外文):Hung-Jiun Liao
口試日期:2014-01-09
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:營建工程系
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:中文
論文頁數:121
中文關鍵詞:高壓噴射灌漿工法成型樁徑預測音訊監測法
外文關鍵詞:jet grouting methodcutting diameter predictionacoustic monitoring method
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論文摘要
高壓噴射灌漿工法是目前台北都會區地下工程最常被使用的地盤改良工法。然而,本工法在施工時,其成型品質容易受施工參數、地質特性和施工經驗等因素之影響,常不易掌握。因此為掌握高壓噴射灌漿工法之切削狀況,以檢驗樁徑之成型狀態,本研究利用聲音監測儀器系統,監聽噴射灌漿液切削土壤產生之音訊,並分別於日本及東南亞等地進行現地足尺寸試驗,蒐集不同地質條件下,高壓噴射灌漿之切削音訊值,以作為噴射灌漿樁成型品質量化指標之依據。同時,也透過噴射灌漿成型樁徑預測模式,配合噴射灌漿監測切削音訊值、施工參數、地質特性和成樁尺寸等現場實測值,建立灌漿液噴射距離與音訊資料之關係圖,再依圖求出改良樁成型樁徑之臨界切削音訊曲線,以為日後噴射灌漿樁成型品質之音訊監測與評估之用。
關鍵字:高壓噴射灌漿工法、成型樁徑預測、音訊監測法。
ABSTRACT
Jet grouting is the most commonly used ground improvement method for the underground construction in Taipei city. However, the quality of the jet grouted columns is sensitive to the factors such as jet grouting practice, subsoil conditions, experience of contractor etc. To have a better control on the diameter of jet grouted column, this research uses a digital acoustic monitoring system to constantly monitor the sound generated from the jet cutting process of jet grouting method. Full scale field tests of this acoustic monitoring method were carried out in Japan as well as in the Southeast Asian region to account for the influence of changing geological conditions. The acoustic data gathered from the full scale tests were used to establish the relationship between jet cutting distance and recorded acoustic data on the diagram. The actual diameter of jet grouted column was checked by open cut method. Where the open cut method is not feasible, a jet cutting diameter prediction model obtained from literature was used instead. The suitability of the cutting diameter prediction model was verified by other open cut cases collected in this research. Using the relationship curves on the diagram, a critical curve for the jet grouting generated acoustic data can be established. When the acoustic sound at the recording location is above the critical curve, it indicates the jet cutting is effective and a jet grouted column with corresponding diameter can be form. If it is below the critical curve, jet grouted column with corresponding diameter cannot be form. This critical curve can be used to real time checking the effective cutting distance of the jet grouting method.

Key Words: jet grouting method, cutting diameter prediction, acoustic monitoring method
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 2
1.3 研究流程 3
1.4 論文架構 4
第二章 文獻回顧 6
2.1 高壓噴射灌漿目的 6
2.2 高壓噴射灌漿工法 7
2.2.1 二重管工法 8
2.3 紊流噴射灌漿成型樁徑預估模式 11
2.3.1 極限噴射距離(XL) 12
2.3.2 噴射流體衰減係數(α) 13
2.3.3 極限噴射速度(νL) 15
2.3.4 噴射初速(ν0) 17
2.3.5 噴射流體衰減係數(η) 17
2.4 傳統高壓噴射灌漿成效檢驗 19
2.4.1 改良樁徑確認方式 20
2.4.2 灌漿成效檢驗方式 24
2.4.3 非破壞性檢驗方式 27
2.4.4 成效檢核方式優缺點 30
第三章 現地試驗儀器設備與試驗規畫 33
3.1 監測系統開發目的 33
3.2 監測系統儀器和設備規格 34
3.3 高壓噴射灌漿工法以及音訊監測法 38
3.3.1 V-JET工法概要 38
3.3.2 音訊監測工法概要 41
3.4 日本現地試驗目的、項目配置以及施作流程計畫 48
3.4.1 日本試驗施工項目及配置 48
3.4.2 日本試驗地質資料 50
3.5 香港現地試驗目的、項目配置以及施作流程規劃 52
3.5.1 香港試驗施工項目及配置 52
3.5.2 香港試驗地質資料 54
3.6 馬來西亞現地試驗目的、項目配置以及施作流程規劃 56
3.6.1 馬來西亞試驗施工項目及配置 56
3.6.2 馬來西亞試驗地質資料 58
第四章 試驗結果 60
4.1 噴射裝置性能與衰減力測試 60
4.2 現地試驗結果 63
4.2.1 日本試驗樁No.1試驗成果 64
4.2.2 日本試驗樁No.2試驗成果 69
4.2.3 香港JG-7樁試驗成果 74
4.2.4 馬來西亞A20樁試驗成果 77
4.3 地盤切削音訊分析 79
第五章 成型樁臨界切削音訊值建立 82
5.1 紊流噴射灌漿成型樁徑預估模式驗證 82
5.1.1 案例A 82
5.1.2 案例B 84
5.1.3 案例C 87
5.1.4 案例結果比較 89
5.2 音訊改良樁成型品質指標建立 91
5.2.1 音訊值的組成 91
5.2.2 不同成型樁徑音訊結果 95
5.2.3 臨界切削音訊曲線驗證 107
第六章 結論與建議 112
6.1 結論 112
6.2 建議 113
參考文獻 114
附錄 預測成型樁徑與音訊特徵曲線 117
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2.Superjet研究會(2005),"Superjet-Midi Supe jet技術資料" Superjet研究會。
3.V-JET協會(2011),"V-JET工法技術積算資料",V-JET協會。
4.財團法人中技社 (2006),「高壓噴射灌漿工法本土適用性研究計畫」期未報告。
5.廖惠生 陳敏雄 余明山 吳沛軫(2006),"超高壓噴射灌漿案例之探討",第五屆海峽兩岸隧道與地下工程學術與技術研討會,pp. C3-1~C3-10。
6.李維峰、張嘉峰、梅興泰、蔡道賜 (2006),"地電阻影像剖面探測於地下工程之應用",地工技術,第108 期,pp. 91-104。
7.劉賢淋 (2001),「大地施工學(下)」,文笙書局。

8.Yong, D. M., Hayashi, K. and Chia, B. H. (1996), “Jet Grouting for Construction of a RC Canal in Soft Marine Clay,” Grouting and deep mixing, Proc., IS Tokyo 96, 2nd International conference on Ground Improvement Geosystems Tokyo, Japan, pp. 375-380.
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13.Cheng, S. H., Wong, K. N. and Liao, H. J. (2012), “A large diameter jet grouting method for arrival of shield tunneling machine,” International Symposium & Short Courses on Recent Research, Advances & Execution Aspects of Ground Improvement Works, Brussels, Belgium, May, Vol. 4, pp. 205-214.
14.Axtell, P. J., & Stark, T. D. (2008), “Increase in Shear Modulus by Soil Mix and Jet Grout Methods,” DFI Journal, Vol. 2, pp. 11-21.
15.Kim, S. I., Kim, D. S., Park, H. C., & Kweon, G. C. (1997), “SASW Method for the Evaluation of Ground Densification BY Dynamic Compaction,” Ground Improvement Geosystems, Ed. by M. Davies & F. Schlosser, pp. 142-147.
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19.Shen, S. L., Wang, Z. F., Yang, J. (2012), “Estimation of the Diameter of Jet Grouted Column Based on Turbulent Kinematic Flow Theory”, Proc. 4th International Conference on Grouting and Deep Mixing, Vol. 2, New Orleans, Louisiana, pp. 2044-2051.
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