砂土層中通隧引致之地盤變位及其對既存基樁的影響

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：133

、訪客IP：3.129.247.196

姓名

郭家銘(Chia-Ming Kuo) 查詢紙本館藏

畢業系所

土木工程學系

論文名稱

砂土層中通隧引致之地盤變位及其對既存基樁的影響
(Ground Deformations and Piles Reponses Due to Tunnelling in Sandy Ground)

相關論文

★ 砂土層中隧道開挖引致之地盤沉陷與破壞機制及對既存基樁之影響	★ 以離心模型試驗探討逆斷層作用下單樁與土壤互制反應
★ 攝影測量在離心模擬試驗之應用-以離心隧道模型之地表沉陷量量測為例	★ 沉箱式碼頭受震反應的數值分析
★ 軟土隧道襯砌應力與地盤變位之數值分析	★ 沉箱碼頭受震反應及側向位移分析
★ 潛盾隧道開挖面穩定與周圍土壓力之離心模擬	★ 地理資訊系統應用於員林地區液化災損及復舊調查之研究
★ 黏性土層中隧道開挖引致之地盤沉陷及破壞機制	★ 既存隧道周圍土壓力受鄰近新挖隧道的影響
★ 以攝影測量觀察離心土壩模型受滲流力作用之變位	★ 通隧引致鄰近基樁之荷重傳遞行為
★ 潛盾施工引致之地盤沉陷案例分析	★ 以離心模型試驗探討高含水量黏性背填土加勁擋土牆之穩定性
★ 懸臂式擋土壁開挖之離心模型試驗	★ 既存隧道襯砌彎矩受鄰近水平新挖隧道的影響

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

都會區捷運系統，由於路權取得困難，有許多隧道緊鄰建物基礎或穿越建物基礎而過。位於軟弱土層中的隧道，由於盾尾間隙閉合將引起應力釋放，因而造成隧道周圍地盤變位。此種地盤變位包含垂直方向及水平方向的變位，會造成位於沉陷槽內之鄰近建物基礎的損害。因此，為了使工程師能提出有效且經濟的建物保護施工計畫，必須先行探討此種土壤移動對基礎的影響程度。
本研究利用離心模型試驗，探討於砂土層中進行隧道掘進導致之地盤變位，對鄰近隧道的既存基樁之影響。本研究分別 (1) 探討於自由場狀態下，位於砂質地盤中之單隧道開挖所引致之地盤變位。(2)探討單隧道開挖引致之地盤變位對鄰近基樁的影響程度，主要在釐清位於不同深徑比的隧道開挖案例中，距隧道中心不同距離處，基樁之樁身彎矩分佈型態、軸向力分佈型態及樁頭變位，進而對基樁之荷重傳遞行為能有所了解。
試驗結果顯示，於砂質地盤中進行隧道施工時，土壤漏失量大於3.5%之後，隧道隨即劇烈地產生大量的土壤漏失，亦即砂質地盤中隧道的破壞產生於一瞬間。另必須注意在土壤漏失量約為3.5%之前，鄰近隧道的基樁樁身之彎矩和軸向力隨即快速增加。

摘要(英)

Tunnels are driven nearby or underpass buildings as closely as possible due to the difficulty of land use in rapid transit system construction projects in urban areas. The stress relaxation due to the close of tail voids for tunnels in soft soils may cause the ground deformations around the tunnel. The ground deformations (including lateral and vertical soil movements) will damage nearby buildings and building protection measures must be properly taken during constructions. The load transfer mechanisms of the piles embedded in the movable soils are considerably complex and need to study in detail.
A series of centrifuge model tests have been performed to assess tunnelling-induced ground deformations in sandy ground and their effects on adjacent pile foundations. Two topics have been investigated in this study. First of all, the free-field ground deformations induced by tunneling in sandy ground have been measured. Secondly, the load transfer mechanism (such as bending moment, axial force and pile head deformation) of the piles has been analyzed in the different conditions, including the cover-to-depth ratios, and the distance of the pile and the tunnel.
When the measured ground loss induced by tunneling in sandy ground is greater than 3.5%, a large quantity ground loss will be caused violently. The result displays that the time of collapse in sandy tunnels will arise in the twinkling of an eye. In addition, when the ground loss is less than 3.5%, the bending moment and axial force of the nearby pile foundations have been occurred rapidly.

關鍵字(中)

★ 砂土
★ 隧道
★ 樁
★ 地表沉陷槽
★ 地底沉陷槽
★ 地盤變位
★ 土壤漏失

關鍵字(英)

★ Surface and subsurface settlement through
★ Piles
★ Tunnels
★ Sandy ground
★ Ground deformations
★ Ground loss

論文目次

目錄
中文摘要 I
英文摘要 II
目錄…. III
表目錄 V
圖目錄 VI
照片目錄 XII
符號說明 XIII
第一章緒論 ……………………………………………......1
1-1 緣起 1
1-2 研究動機 2
1-3 研究架構 4
1-4 論文內容 5
第二章文獻回顧 7
2-1 軟地通隧引致之地盤沉陷 7
2-1-1 地盤沉陷之原因 7
2-1-2 地表沉陷分佈型態 9
2-1-3 最大地表沉陷量和土壤漏失量 13
2-1-4 地下土層之沉陷分佈型態及地盤變位 21
2-1-5 砂土層中之離心隧道模型試驗 25
2-2 側向土壤移動對樁基處的影響之相關研究 27
2-2-1 基樁承受側向土壓力之數值分析方法 28
2-2-2 基樁承受側向土壓力之模型試驗 32
2-4 軟地通隧對鄰近樁基礎的影響之相關研究 34
2-5 離心模型基本原理 37
2-5-1 離心模型之基本相似律 38
2-5-2 離心模型試驗之模型模擬 41
第三章試驗土樣、儀器設備及試驗方法 74
3-1 試驗土樣 74
3-2 試驗儀器及相關設備 74
3-2-1 地工離心機 74
3-2-2 模型試驗箱 75
3-2-3 移動式霣降機 76
3-2-4 其他量測工具 76
3-3 試體準備及模型製作 77
3-3-1 模型計測樁之製作及彎矩和軸向力校正 77
3-3-2 試體製作 79
3-3-3 位移標線計埋設、模型隧道及有色砂製作 80
3-4 試驗方法與步驟 81
第四章試體性質與彎矩分佈曲線迴歸分析方法……….104
4-1 石英細砂之內摩擦角 104
4-2 模型基樁之基本性質 106
4-3 樁身彎矩分佈曲線迴歸方法之選擇 107
4-3-1 三次多項式函數法 107
第五章試驗結果與分析 118
5-1 離心模型試驗類別 118
5-2 離心模型試驗重複性之驗證 120
5-3 砂土單隧道模擬試驗之結果與分析 122
5-3-1 隧道穩定性 123
5-3-2 地表沉陷槽 126
5-3-3 最大地表沉陷與隧道頂拱變形 127
5-3-4 土壤漏失量 130
5-3-5 沉陷槽寬度 132
5-3-6 隧道破壞型態與周圍地盤變位 133
5-4 通隧對鄰近基樁的影響試驗分析 136
5-4-1 樁身彎矩分佈 137
5-4-2 樁身軸向力分佈 142
5-4-3 樁頭變位 146
5-4-4 不同水平距離下之基樁力學反應 148
第六章結論與建議………………………………………..211
參考文獻 216
附錄A 最大及最小乾密度試驗 222
附錄B 直接剪力試驗 225

參考文獻

[1] Acutronic, Civil Engineering Centrifuge Model 665-1 Installation Manual 5941E, France (1992).
[2] Acutronic, Geotechnical Centrifuge Model 665-1 Product Description 5933H, France (1993).
[3] Atkinson, J. H., and Potts, D. M.,“Subsidence above shallow tunnels in soft ground,”Journal of Geotechnical Engineerimg, ASCE, Vool. 103,No. GT4, pp. 307-325 (1977).
[4] Attewell, P. B., Yeates, J., and Selby, A. R.,“Soil movements induced by tunneling and their effects in pipelines and structures,”Blackie and Son Ltd., London (1986).
[5] Attewell, P. B.,“Engineering contract, site investigation and surface movements in tunneling works,”Soft Ground Tunneling: Failures and Displacements, Rotterdam, pp. 5-12 (1981).
[6] Bezuijen, a., Schrier, J.V. D.,“The influence of a bored tunnel on pile foundations,”Centrifuge 94,edted by Lee and Tan, Balkema, Rottterdam, pp. 681-686 (1994).
[7] Broms, B. B.,“Lateral resistance of piles in cohesive soil,”Jounal of the Soil Mechanics and Foundations Division SM2, ASCE, Vol. 90, pp. 27-63 (1964).
[8] Chambon, P. and Corté, J.F.,“Shallow tunnels in cohesionless soil: stability of tunnel face,”Journal of Geotechnical Engineering, ASCE, Vol. 120, No. 7, pp. 1148-1165 (1994).
[9] Chambon, P., Corté, J.F., and Garnier,J.,“Face stability of shallow tunnels in granular soils,”Proceedings, International Conference Centrifuge 91, Boulder, Colorado, pp. 99-105 (1991).
[10] Chen, L. T., Poulos, H. G., and Hull, T. S.,“Model tests on pile groups subjected to lateral soil movement,”Soils and Foundations, Vol. 37, No. 1, pp. 1-12 (1997).
[11] Chen, L. T., Poulos, H. G., and Loganathan, N.,“Pile responses caused by tunneling,” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 125, No. 3, pp. 207-215 (1999).
[12] Clough, G. W., and Schmidt, B.,“Design and performance of excavations and tunnels in soft clay,”In Soft Clay Engineering, edited by Brand, E. W., and Brenner, R. P., pp. 600-634 (1981).
[13] Cording, E. J., and Hansmire, W. H.,“Displacement around soft ground tunnels,”Proc. 6th Panamerican Conf. On Soil Mech. AndFound. Eng., Buenon Aires, pp. 571-633 (1975).
[14] Deane, A. P., and Bassett, R. H.,“The Heathrow Express trial tunnel,”Proc. Institution of Civil Enginnering, Geotechnical Engineering, Vol. 113, pp. 114-156 (1995).
[15] Fang, Y. S., Pan, M. D., and Lin, G. J.,“Time and settlement in EPB shield tunneling,”Tunnels and Tunnelling, pp. 27-28 (1993).
[16] Fretti, C., Lo Presti, D. C. F., and Pedroni, S.,“A pluvial deposition method to reconstitute Well-Graded sand specimen,”Geotechnical Testing Journal, GTJODJ, Vol. 18, No. 2, pp. 292-298 (1995).
[17] Fujita, K.,“Prediction of surface settlements caused by shield tunnelling,”Proceedings, International Conference on Soil Mechanics, Mexico City, Vol. 1, pp. 239-246 (1982).
[18] Ito, T., Matsui, T., and Hong, W. P.,“Design method for stabilizing pile against landslide-one row of piles,”Soils and Foundations, Vol. 21, No. 1, pp. 21-37 (1981).
[19] Ito, T., Matsui, T., and Hong, W. P.,“Design method of stabilizing piles against landslide － one row of piles,” Soils and Foundations, Vol. 21, No. 1, pp. 21-38 (1981).
[20] Lee, C. J., Wu, B. R, and Chiou, S. Y.,“Soil movements around a tunnel in soft soils,”Proc. Natl. Sci. Counc. ROC, series A, Vol. 25, No. 2, pp. 235-247 (1999)
[21] Loganathan, N., and Poulos, H. G.,“Analytical prediction for tunneling-induced ground movements in clays.”Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 120, No. 7, pp. 846-856 (1998).
[22] Loganathan, N.,Poulos, H. G., and Xu, K. J., “Ground pile-group responses due to tunnelling.” Soils and Foundations, Vol. 41, No. 1, pp. 57-67 (2001).
[23] Longanathan, N., Poulos H.G., and Stewart, D.P.,“Centrifuge model testing of tunnelling-induced ground and pile deformations,”Geotechnique, Vol. 50, No. 3, pp. 283-294 (2000).
[24] Mair, R. J., Taylor, R. N., and Bracegirdie, A.,“Subsurface settlement profiles above tunnels in clays,”Geotechnique, Vol. 43, No. 2, pp. 315-320 (1993).
[25] Matsui, T., Hong, W. P., and Ito, T.,“Earth pressures on piles in a row due to lateral soil movements,”Soils and Foundations, Vol. 22, No. 1, pp. 71-81 (1982).
[26] Mezazigh, J., Favraud, C. and Levacher, D., “Effect of Slope and Soil Density on P-Y Curves for Piles in Sand,” Centrifuge 94, pp. 503~508 (1994).
[27] Nomoto, T., Imamura, S., Hagiwara, T., Kusakabe, O., and Fujii, N.,“Shield tunnel construction in centrifuge,”Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 125, No. 4, pp. 289-300 (1999).
[28] O’Reilly, M. P., and New, B. M.,“Settlements above tunnels in the United Kingdom – their magnitude and prediction,”Tunnelling’82, pp. 173-240 (1982).
[29] Peck, R. B.,“Deep Excavation and tunneling in soft ground,” State of Art, Proc. 7th Int. Conf. On Soil Mech. Found. Eng., State of Art Volume, pp. 225-290 (1969).
[30] Poulos, H. G., and Chen, L. T.,“Pile response due to excavation–induced lateral soil movement,”Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 123, No. 2, pp. 94-99 (1997).
[31] Poulos, H. G., and Davis, E. H., Pile foundation analysis and design, Wiley, New York, pp. 311-322 (1980).
[32] Poulos, H. G., Chen, L. T., and Hull, T. S.,“Model tests on pile groups subjected to lateral soil movement,”Soils and Foundations, Vol. 37, No. 1, pp. 1-12 (1997).
[33] Poulos, H. G., Chen, L. T., and Hull, T. S.,“Model tests on single piles subjected to lateral soil movement,”Soils and Foundations, Vol. 35, No. 4, pp. 85-92 (1995).
[34] Poulos, H. G.,“Analysis of piles in soils undergoing laternal movements,” Jounal of the Soil Mechanics and Foundations Division SM5, ASCE, Vol. 99, pp. 391-406 (1973).
[35] Rowe, R.K. and Kack, G.J.,“A theoretical examination of the settlements induced by tunnelling: four case histories,”Canadian Geotechnical Journal, Vol. 20, pp. 299-314 (1983)
[36] Springman, S. M., and Bolton, M. D.,“Modeling the behavior of piles subjected to surcharge loading,”Centrifuge 91,edted by Ko., Balkema, Rottterdam, pp. 253-260 (1991).
[37] Stewart, D. P., Jewwll, R. J., and Randolph, M. F.,“Numerical modeling of piled bridge abutments on soft ground,”Computers and Geotechnics, Vol. 15, pp. 21-46 (1993).
[38] Taylor, R.N.,“Tunnelling in soft ground in the UK,”Proceedings, International Symposium on Underground Construction in Soft Ground, Balkema, Rotterdam, pp. 123-126 (1995).
[39] Verruijt, A. and Booker, J.R.,“Surface settlements due to deformation of a tunnel in an elastic half plane,”Geotechnique, Vol. 46, No. 4, pp. 753-756 (1996).
[40] Wang, J.J. and Chang, C.T.,“Subsurface subsidence due to tunnelling by EPB shield,”Proceedings, South East Asian Symposium on Tunnelling and Underground Space Development, Japan Tunnelling Association, Bangkok, pp. 217-222 (1995).
[41] 王繼勝等人，「潛盾工法與地表沉陷」，地工技術雜誌，第二十三期，第72-83頁（1988）。
[42] 李崇正，林志棟，林俊雄，「大地工程研究者知新工具：離心模型試驗」，岩盤工程研討會論文集，中壢，第649-669頁（1994）。
[43] 周小文，「盾构隧道土压力离心模型试验及理论研究」，博士论文，清华大学水利水电工程系，北京 (1999)。
[44] 林俊雄，「離心模型黏土試體之準備與強度標定」，碩士論文，國立中央大學土木工程學系，中壢（1995）。
[45] 邱顯堯，「並行雙隧道變形之互制行為」，碩士論文，國立中央大學土木工程學系，中壢（1997）。
[46] 莊孟翰，「未襯砌隧道壁變形引致地盤下限分布形態分析」，碩士論文，國立中央大學土木工程學系，中壢（1996）。
[47] 陳秋宗，「台北市潛盾隧道施工對地盤沉陷之影響」，碩士論文，國立交通大學土木工程系，新竹 (1988)。
[48] 黃南輝、黃奕洋、黃姿連、楊鵬飛，「潛盾隧道施工所導致之沉陷槽分析」，捷運施工及托底工程研討會，財團法人地工技術研究發展基金會，高雄，第37-48頁 (1997)。
[49] 歐晉德，「基樁受填土影響之側向力問題」，地工技術雜誌，第十八期，第8-13頁（1987）。

指導教授

李崇正(Chung-Jung Lee)

審核日期

2002-7-16

推文