8193

7591

كارشناسي ارشد

مكانيك سنگ

اصفهان: دانشگاه صنعتي اصفهان، دانشكده معدن

1392

سيزده،87ص.: مصور،جدول،نمودار

ص.ع.به فارسي وانگليسي

عليرضا باغبانان، حميد هاشم الحسيني

عبدالرحيم ذوالانوار

5/9/92

مهدي ابطحي، راحب باقرپور

مهندسي معدن

ID7591

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

88 Isfahan University of Technology Department of Mining Engineering Evaluation the properties of improved stones in breakwaters and modifying the selecting criteria Ehsan Mohammadi Mohammadi iut@yahoo com Date of Submission 2013 09 21 Department of Mining Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language FarsiSupervisor Alireza Baghbanan bagh110@cc iut ac irSupervisor Hamid Hashemolhoseini hamidh@cc iut ac irAbstractIn southern coastal areas of Iran establishing rock made breakwaters is more prevalentthan other kinds Exploitation of local facilities and availability of appropriate materials isof great importance in establishing rock made breakwaters Also keeping these materialsneeds to be cheap and must guarantee the safety and required preserve during theirlifetime Furthermore with regards to poverty in coastal areas of the country making useof Loamashell rocks as cheap sources in creating breakwaters is of great importance However loamashell rocks are often considered to be unsophisticated since they haveweak physical and mechanical characteristics and are often used in outer layers ofbreakwaters In addition concerning economic parameters transportation of these rocksfrom far places are not often financially reasonable Therefore with regards to thementioned shortcomings optimizing the preserve and lifetime of Loamashell rocks ifeconomical can make some of these rocks ready for being used In the present study in a field study sampling was made from rocks Holor Mine inDargahan located in northern east of Qeshm Island Iran Samples were categorized intofour categories the first were strengthened by limewater next were strengthened byEpoxy resin other group by biological grout The last category were treated as thecontrolled group so that other strengthening materials would be compared against eachother Then working out engineering experiments for the preserve evaluation of samples characteristics of these materials including physical preserving and strength andmechanical characteristics were defined Findings indicate that limewater because ofcontaining great amounts of water cause a decay in rocks and decreases mechanicalcharacteristics of rocks to 8 5 degree in comparison to its first condition Strengtheningby the biological grout led to water content in rocks and increased their quality to 7 degree Epoxy resin was shown to be better than the other two strengthening materialsand optimized rocks quality to a 17 degree Nevertheless it is considered as a surfacestrengthening material because of different physical and chemical characteristics withrocks and shallow depth and it has to change periodically on the surface of rocks Keywords Rock made Breakwater Loamashell rocks Strengthening Limewater Epoxyresin Mafic microorganisms

عليرضا باغبانان، حميد هاشم الحسيني

عبدالرحيم ذوالانوار

مهدي ابطحي، راحب باقرپور