| DC 欄位 |
值 |
語言 |
| DC.contributor | 土木工程學系 | zh_TW |
| DC.creator | 廖偉民 | zh_TW |
| DC.creator | Wei-Min Liao | en_US |
| dc.date.accessioned | 2001-7-2T07:39:07Z | |
| dc.date.available | 2001-7-2T07:39:07Z | |
| dc.date.issued | 2001 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN= 85342005 | |
| dc.contributor.department | 土木工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 在土石流臨界降雨條件之理論推導部分，本文提出超額孔隙水壓對土石流臨界坡度之影響，並將合理化公式及曼寧公式與超額孔隙水壓之臨界坡度公式相結合，提出土石流臨界降雨強度之理論式。經由現地調查土石流地文因子後，理論公式可以很準確的預測土石流發生之臨界降雨條件，並可供作為土石流避難或預警系統之參考。
就實驗模擬部分，本文針對非凝聚性土石壩在壩趾發生滲流破壞前後之特性作探討。在壩體破壞前，經由理論推導及實驗驗證後，本文所推導之公式可以預測壩體上游面之水位與時間的關係；在壩體發生破壞時，依實驗所得之結果，可用非線性方程式（l’’=at’’+b*t’’^0.5 ）來預測壩體崩壞長度與時間之關係。藉由理論推導與實驗模擬之結果，對因壩體潰流而引發土石流之預警或避難有極大的助益。 | zh_TW |
| dc.description.abstract | In the theoretical analysis of critical rainfall condition, the effect of the pore pressure on the initiation of debris flow is explored. The experimental data are performed to verify, and are checked with the field data for recorded debris flow events.
In the experimental work, the collapse of cohesionless debris dams procedure is explored. By the experimental data and the theoretical formula, the seepage collapse process of the cohesionless debris dams is clearly described in this study. Such information is useful for the warning system of the debris flow. | en_US |
| DC.subject | 土石流 | zh_TW |
| DC.subject | 潛勢判定模式 | zh_TW |
| DC.subject | 臨界降雨條件 | zh_TW |
| DC.subject | 滲流破壞 | zh_TW |
| DC.subject | debris flow | en_US |
| DC.subject | dentification model | en_US |
| DC.title | 土石流潛勢判定模式及土石壩滲流破壞之研究 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | A Study on Identification Model for the Potential Debris Flow Ravines and the Seepage Failure of Debris Dams | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |