| 姓名 | 張永義(Yung-Yi Chang) | 電子郵件信箱 | E-mail 資料不公開 | |
| 畢業系所 | 營建工程系碩士班(Department and Graduate Institute of Constrction Engineering) | |||
| 畢業學位 | 碩士(Master) | 畢業時期 | 95學年第1學期 | |
| 論文名稱(中) | 利用監測系統於金龍社區邊坡穩定工程之整治規劃研究 | |||
| 論文名稱(英) | Using Monitoring System to Assess Slope Stability Treatment Methods at the Ching-Long Community Area | |||
| 檔案 |
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。 |
論文使用權限 | 校內外都二年後公開 | |
| 論文語文/頁數 | 中文/124 | |||
| 摘要(中) |
水里鄉金龍社區位處西部麓山帶，此社區位於地質不穩定的地盤上，社區內部分位置有地層滑動的現象，在九二一地震時也發生部份邊坡滑動的情形。為避免未來邊坡再度坍滑危及金龍社區，希望能深入瞭解地盤穩定情形，故對該區域進行調查與監測，然後利用數值分析軟體針對金龍社區潛在不穩定之坡地，檢討其邊坡穩定之安定性，並將社區監測及數值分析之結果應用於工程規劃上。 本研究使用調查所得之現地土層參数，並設置監測系統，利用監測與地質評估結果，針對金龍社區潛在不穩定之坡地，利用FLAC及STABL進行邊坡穏定分析（平時、暴雨及地震三種狀況），以掌握金龍社區現況之破壞模式與破壞機制。邊坡以地錨、止滑樁、排水井(輔助工法)、地錨＋排水井(輔助工法)及止滑樁＋排水井(輔助工法)等不同工法整治，利用FLAC配合強度折減法進行穏定分析建立安全係數。綜合分析結果，經成效評估後，歸納提出適合金龍社區邊坡穏定工程之整治規劃。 由本研究結果顯示：(1)本社區可歸納為三個主要地層，第一層崩積土層γt=1.9 g/cm3，c'=49.2kN/m2， '=34.4°；第二層頁岩夾粉砂岩層γt=2.95 g/cm3 ，c'=9.3 kN/m2， '=26.1°；第三層頁岩層γt =2.95 g/cm3，c'=340 kN/m2， '=22°。(2)本社區之地層滑動由傾斜觀測管監測結果得知，整個邊坡有往社區西南方向移動的趨勢。(3) 傾斜觀測管量測結果顯示坡地之平均日變量，以日本地滑對策技術協會的建議，屬「準確定變動」（0.1~1mm/天），本社區邊坡呈緩慢滑動。(4)以安全(F.S)、經濟、施工、美觀與生態四項目等權方式進行成效評估，建議本社區邊坡採用止滑樁工法，另於原排水溝旁增設一口排水井為輔助工程。(5)若僅以經濟項目為考量，建議本社區邊坡採用地錨工法，亦於原排水溝旁增設一口排水井為輔助工程。 |
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| 摘要(英) | The
research was conducted to study the slope stability for a
residential community which is located in the central Taiwan
area. The study area is categorized as hill-side topography in
Hsuei-Li township where earth movements such as land-slide and
mudflow are of great concern regarding the casualty and property
loss due to natural disasters including 921 earthquake and
floods. The research was carried out using numerical analysis with soil mechanical parameters determined from in-situ subsurface explorations and the results from installed field monitoring system and geological evaluations. Once the areas with vulnerable geological conditions were identified, further investigation using FLAC and STABL was conducted under 3 conditions (normal, storm, earthquake) to obtain adequate information for suitable design of slope stability construction. Results of the study suggest that earth anchor, slippery-resistance pile and drainage well are the most effective factors for increasing the safety factor of the slope stability in the study area. In summary, the results of the study are listed below:(1) The sub-grade in the study area consists of 3 major strata: first, Coluvium deposit (γt=1.9g/cm3, c'=49.2KN/m2, '=34.4° ), second, Shale with silty sand (γt=2.95g/cm3, c'=9.3KN/m2, '=26.1° ), and third, Shale (γt=2.95g/cm3, c'=340KN/m2, ' =22° ). (2) Results of the inclinometer monitoring revealed that the entire slope in the study area exhibit a movement towards southwest direction and (3) with a constant accurate rate of 0.1-1 mm per day.(4) By considering safety factor, economy, construction, landscape and ecology, the slippery-resistance pile is suggested for the slope stability design with a supplementary drainage well installed next to the existing drainage ditch, and (5) Earth anchor is recommended with the drainage well for the slope stability design when only the economic reason is considered. |
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| 口試日期 | 2006-09-30 | 繳交日期 | 2007-01-09 | |