室內軟弱岩石射流沖刷設備建立

吳禹霆

doi:10.6842/NCTU.2012.00402

3.234.214.113，Hello！

Browse Advanced Search Prepaid&Cart

Close
Search Quick Search Advanced Search Publication Search	Personal Service Member Login Searching History Use Bonus Card 文獻相似度檢測服務
Browse Browse by University of Graduate Thesis Browse by Pinyin of Graduate Thesis Browse by Conference Proceedings Topic Browse by Conference Proceedings Publisher Browse by Pinyin of Conference Proceedings Browse by eBook Category Browse by eBook Topic Browse by eBook Publisher
Customer Services Authorize Airiti Recommend a Journal

Search Symbol (Half-width)	Description of Search Symbols
Space	"AND" indicates the intertwining of key terms used in a search
Double Quotation Marks ("") ( " " )	Double quotation marks indicate the beginning and end of a phrase, and the search will only include terms that appear in the same order of those within the quotations. Example: "image process" ： " image process "
?	Indicates a variable letter. Entering two ? will indicate two variable letters, and so on. Example: "Appl?", search results will yield apple, apply… e , appl y … ( (often used to English word searches) )
*	Indicates an unlimited number of variable letters to follow, from 1~n. Example: Enter "appl*", search results will yield apple, apples, apply, applied, application…(often used in English word searches) e , appl es , appl y , appl ied , appl ication … ( (often used to English word searches) )
AND、OR、NOT	Boolean logic combinations of key words is a skill used to expand or refine search parameters. (1) AND (1) AND: Refines search parameters (2) OR (2) OR: Expands search parameters (3) NOT: Excludes irrelevant parameters

DOI stands for Digital Object Identifier （ D igital O bject I dentifier ） ,
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.

Using DOI as a persistent link

To create a persistent link, add「http://dx.doi.org/」「 http://dx.doi.org/ 」 before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: http://dx.doi.org/ 10.5297/ser.1201.002 。
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.

Cite a document with DOI

When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.

DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI Registration （ doi.airiti.com ）。

Data Source

Institute of Technology > 土木工程系所
Engineering > Civil Engineering & Architecture Engineering

Bibliography Management Tool

Related Links

Report an Issue

Purchase Single Articles

Download PDF

室內軟弱岩石射流沖刷設備建立

Development of a Jet Erosion Equipment for Weak Rocks

吳禹霆 , Masters　　Advisor：廖志中　　

繁體中文 DOI： 10.6842/NCTU.2012.00402

軟弱岩石；沖蝕坑深度；沖蝕坑形狀；射流沖蝕； weak rocks ； depth of scour hole ； shape of scour hole ； jet erosion

Abstract │ Reference (18) │ Times Cited (11) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

In the Western Taiwan, most of major rivers flow through the geological region of Western foothill which is composed of young sedimentary rocks.  Their engineering behaviors are tended to be like weak rocks, e.g. poor cementation, high deformability, and low strength. Weirs were often built across rivers to elevate river water level for providing public water supply in the area.  Due to low rock strength and the head difference caused by the weirs, rapid scour downstream of weirs is often observed. This type of scour may induce weir instability and make river-bed erosion. Since the water flow quantity passing over a weir is varied with time, the impinging points of jet flows on downstream rock bed are different for different flow events. The depth and shape of scouring hole may be affected by the inclination angle of jet flow. This thesis aims to develop a jet erosion equipment for simulating the formation of scour hole on weal rocks river-bed down stream weirs, and investigating the effect of jet impinging angle on the scouring depth and scouring rate of the holes.
    Based on the multi-function erosion equipment for weak rocks developed by Kuo(2010), this thesis develops a jet erosion equipment with variable impinging inclination angles for weak rocks in laboratory. Testing procedure, sample preparation, and measurement of the surface topography of the specimen are introduced in the thesis. Also, three sets of jet erosion tests with varied jet inclination on sandstone specimen are conducted. The testing inclination angles include 30°,50°, and 70°.
    The testing results show that the eroded volume of the specimens increases with the decrease of the inclination angle, because the total applied energy on the specimen decreases with the increase of the inclination angle. The results of the pilot tests demonstrate that the equipment is suitable for performing the scouring tests on weak rocks in laboratory.

Reference ( 18 ) 〈TOP〉

2. 郭炳宏，2010「多功能軟岩沖蝕試驗儀之建立」，國立交通大學土木工程系，碩士論文。
連結：
6. Annandale, G.W., (1995). “ERODIBILITY.” Journal of Hydraulic Research, 33(4): pp. 471-494.
連結：
7. Beltaos,S .,(1976). “Oblique Impingement of Plane Turbulent Jets.” Journal of Hydraulics Division,102(9):pp. 1177-1192
連結：
8. Bollaert, E., (2002). “Transient water pressure in joints and formation of rock scour due to high-velocity jet impact.” in Lausanne, EPFL.
連結：
9. Bollaert, E., and A. J. Schleiss, (2003). “Scour of rock due to the impact of plunging high velocity jets Part I: A state-of-the-art review.” Journal of Hydraulic Research, 41(5): pp. 451-464.
連結：

Times Cited (11) 〈TOP〉

Altmetrics

〈TOP〉

E-mail ：

When an article is available to download, a notice will be sent to your mailbox address.

E-mail ：