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A Visualization Approach for Predicting Loosening Loads in Rock Tunnels.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	A Visualization Approach for Predicting Loosening Loads in Rock Tunnels./
作者:	Behzadpour, Reza.
面頁冊數:	1 online resource (68 pages)
附註:	Source: Masters Abstracts International, Volume: 85-02.
Contained By:	Masters Abstracts International85-02.
標題:	Civil engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9798380084970

A Visualization Approach for Predicting Loosening Loads in Rock Tunnels.
Behzadpour, Reza.

A Visualization Approach for Predicting Loosening Loads in Rock Tunnels. - 1 online resource (68 pages)

Source: Masters Abstracts International, Volume: 85-02.

Thesis (M.Sc.)--Idaho State University, 2015.

Includes bibliographical references

The purpose of this work is to apply Geographic Information System (GIS) to analyze joint sets and to predict loosening loads (blocks and wedges) in tunnel openings. Moreover, the overall intent is to integrate GIS techniques in the design and construction of underground openings. To date, there has been no applications of GIS in organizing and analyzing data for predicting loosening loads in tunnels and underground caverns. The process of determining loads in tunnels is basically use of ground reaction curves, rock classification systems and application of geologic methods to predict ground behavior. These processes require an extended amount of time particularly when several rock engineering parameters such as rock type, rock quality, geologic features, weathering and etc. are included in the analysis of multiple tunnel alignments. The goal in this study is to develop a process in which Python, ArcGIS, Excel and AutoCAD are used to firstly, identify prominent joint sets and secondly, to predict critical rock blocks and wedges responsible for loosening loads in tunnels.For this study, a geology plan view containing 100 arbitrarily oriented joint surfaces was developed and used as a basic data set. In order to computerize the process, two major tasks were completed. First, major joint sets were identified in the arbitrary geologic map using ArcGIS, Python and Excel programs. Once the sets were identified, a hypothetical tunnel opening was superimposed on one group of joint sets such that tunnel alignment was oriented sub-parallel with the strike of the group of joint sets. The hypothetical tunnel cross-section was developed in AutoCAD and along with the joint set data were utilized to predict the geometry of the rock blocks and the loosening loads in the arch and sidewall of the opening. Based on the results of this study, it is concluded that GIS methodology improved the efficiency to process joint orientation data and use this information to predict tunnel support requirements. The real contribution in this study is the improved efficiency for analyzing joint orientation data either in geologic maps or from field measurements in predicting rock loads in tunnels. Multiple scenarios of joint set orientations and selection of tunnel alignments can efficiently analyzed using the techniques developed in this study. However, this study was just a very initial step in improving the tunnel design process by using GIS.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380084970Subjects--Topical Terms:

561339
Civil engineering.
Subjects--Index Terms:

Geographic Information SystemIndex Terms--Genre/Form:

554714
Electronic books.

A Visualization Approach for Predicting Loosening Loads in Rock Tunnels.
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