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PatelChintan2005 mjw.pdf (1.85 MB)

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Evaluating Trench Safety Using Fuzzy Logic Concept and Fuzzy Set Models

Patel, Chintan
http://rave.ohiolink.edu/etdc/view?acc_num=osu1419353000

Abstract Details

2005, Master of Science, Ohio State University, Civil Engineering.
Trench collapse results from enabling causes, triggering causes, procedural causes or the combination of any of these three. Trench collapse provides major contribution in the accidental deaths occurring in the construction industry [1]. Hence, safety evaluation of trenches on a regular basis is essential. This evaluation is commonly expressed in linguistic terms especially when dealing with the uncertainties of trench safety. These terms are usually imprecise, not easily defined, but extremely useful. It is hard to perform the mathematical calculation and evaluate the precise safety condition of the trench; therefore the best option is to find the solution by using the fuzzy set concept and the fuzzy models. These fuzzy set models specially deal with the imprecise and linguistic terms associated with the trench condition. The thesis capitalized on the use of fuzzy set concept to manipulate these terms. This concept interprets in mathematical terms the linguistic variables of subjective appraisals of the trench enabling and triggering events and their consequences. Enabling and triggering conditions that often occur on site are analyzed to generate graphical displays, which will help to provide a guideline to determine overall trench performance. The thesis discusses three different fuzzy set models namely: (1) THE TRANSLATIONAL MODEL (2) THE ROTATIONAL MODEL and (3) THE ANGULAR MODEL All the 3 models are discussed and the program is developed in the Visual Basic software for the convenience of the user. The trench conditions and the linguistic safety terms used in the software are created by identifying the safety concerns of the trench excavation sites and evaluating various enabling and triggering causes associated with the trench safety. Each model has its own uniqueness and advantages attached with it. The reason of using three models is, because of the preferences and choices of the different users. Each model are discussed and compared so that the user can make his own decision in using the model of his choice. These models can be used as a tool for preventing accidents and reducing enabling and triggering events in order to achieve the desired safety level of overall trench performance.
Fabian Hadipriono (Advisor)
Jozef Gozon (Committee Member)
Earl Whitlatch (Committee Member)
137 p.
Civil Engineering

Recommended Citations

Citations

  • Patel, C. (2005). Evaluating Trench Safety Using Fuzzy Logic Concept and Fuzzy Set Models [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1419353000

    APA Style (7th edition)

  • Patel, Chintan. Evaluating Trench Safety Using Fuzzy Logic Concept and Fuzzy Set Models. 2005. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1419353000.

    MLA Style (8th edition)

  • Patel, Chintan. "Evaluating Trench Safety Using Fuzzy Logic Concept and Fuzzy Set Models." Master's thesis, Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1419353000

    Chicago Manual of Style (17th edition)

osu1419353000
463
© 2005, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.