The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River
碩士 === 國立臺北科技大學 === 土木與防災研究所 === 100 === A suitable geotextile should have good permeability to avoid excessive pore water pressure as well as have small apparent opening size (AOS) to prevent soil particle loss. Most of the researches so far have conducted tests under uni-directional flow condition...
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ndltd-TW-100TIT056530032019-05-15T20:42:28Z http://ndltd.ncl.edu.tw/handle/692c5v The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River 不織布護岸承受雙向水流作用下之沖蝕行為研究─以新店溪沖積土壤為例 Bing-Hong Chan 詹秉宏 碩士 國立臺北科技大學 土木與防災研究所 100 A suitable geotextile should have good permeability to avoid excessive pore water pressure as well as have small apparent opening size (AOS) to prevent soil particle loss. Most of the researches so far have conducted tests under uni-directional flow condition. Self-development equipment is used for erosion test under cyclic flow. Four geotextiles with different AOS and cohesionless Sindian River alluvium soil were used for this study. A series of tests will be executed under 600, 300, 150 and 75sec/cycle of bi-directional cyclic flow. Moreover, the pore water pressure and settlement on top of sample are measured during testing in order to know the internal stress change of soil. The washout soil particles were collected after test for understanding the amount of washout soil and its particle size distribution. The results from test displays that: (1) With the shorter cyclic flow, the peak value of pore water pressure will increase gradually. In addition, using the thinner geotextiles would enhance the peak value of pore water pressure. (2)In soil-geotextile system, which includes the geotextiles, the thicker has the ability to catalyze as well as steady in advance the filtration layer. (3) The inner pore water pressure of the soil-geotextile system will influence the particle size of the washout soil. (4) The AOS as well as thickness of geotextiles, cyclic flow are principle factors which can effects the stability of the soil-geotextile system. 何嘉浚 2011 學位論文 ; thesis 96 zh-TW |
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碩士 === 國立臺北科技大學 === 土木與防災研究所 === 100 === A suitable geotextile should have good permeability to avoid excessive pore water pressure as well as have small apparent opening size (AOS) to prevent soil particle loss. Most of the researches so far have conducted tests under uni-directional flow condition. Self-development equipment is used for erosion test under cyclic flow. Four geotextiles with different AOS and cohesionless Sindian River alluvium soil were used for this study. A series of tests will be executed under 600, 300, 150 and 75sec/cycle of bi-directional cyclic flow. Moreover, the pore water pressure and settlement on top of sample are measured during testing in order to know the internal stress change of soil. The washout soil particles were collected after test for understanding the amount of washout soil and its particle size distribution.
The results from test displays that: (1) With the shorter cyclic flow, the peak value of pore water pressure will increase gradually. In addition, using the thinner geotextiles would enhance the peak value of pore water pressure. (2)In soil-geotextile system, which includes the geotextiles, the thicker has the ability to catalyze as well as steady in advance the filtration layer. (3) The inner pore water pressure of the soil-geotextile system will influence the particle size of the washout soil. (4) The AOS as well as thickness of geotextiles, cyclic flow are principle factors which can effects the stability of the soil-geotextile system.
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author2 |
何嘉浚 |
author_facet |
何嘉浚 Bing-Hong Chan 詹秉宏 |
author |
Bing-Hong Chan 詹秉宏 |
spellingShingle |
Bing-Hong Chan 詹秉宏 The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River |
author_sort |
Bing-Hong Chan |
title |
The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River |
title_short |
The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River |
title_full |
The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River |
title_fullStr |
The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River |
title_full_unstemmed |
The Erosion Behavior Of Revetments Using Geotextiles Under Cyclic Flow - A Case Study Of Sindian River |
title_sort |
erosion behavior of revetments using geotextiles under cyclic flow - a case study of sindian river |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/692c5v |
work_keys_str_mv |
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