Volume 5, Issue 1 (9-2011)
2011, 5(1): 1077-1088 |
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Fereidooni D. Introduce of new equations for calculation of joint compressive strength (JCS) and elasticity modulus in hard rocks, using Schmidt Hammer results. Journal of Engineering Geology 2011; 5 (1) :1077-1088
URL: http://jeg.khu.ac.ir/article-1-367-en.html
URL: http://jeg.khu.ac.ir/article-1-367-en.html
Abstract: (10081 Views)
Schmidt hammer is used for calculation of joint compressive strength and elasticity modulus of rocks. Today, application of Schmidt hammer is a common method in evaluation of properties of rocks. This method is quick, inexpensive and non-destructive which are benefits of this method. In this regard, different experimental equations proposed by Barton & Choubey (1977), Deere (1960), Keadbinski (1980), Aufmuth (1973) and ISRM (1981) can be employed in order to calculate the Joint Compressive Strength (JCS) of rocks. Due to the importance of this research, new experimental equations are introduced. Using this equations show a very good results in comparison with the results of other researchers. It should be noted that this equations are achieved from 827 records of Schmidt Hammer results from different types of hard rocks such as granite, diorite and hornfels from the Ganjnameh-Shahrestaneh road in Hamedan province, west of Iran.
Keywords: Schmidt Hammer, Joint Compressive Strength (JCS), Elasticity modulus, Schmidt rebound hardness
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