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http://dx.doi.org/10.12652/Ksce.2014.34.2.0505

Effect of Joint on the Earth Pressure Against an Excavation Wall in Rockmass  

Son, Moorak (Daegu University)
Adedokun, Solomon (Daegu University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.2, 2014 , pp. 505-513 More about this Journal
Abstract
This paper investigated the effect of joint on the earth pressure against an excavation wall in rockmass with the consideration of various rock and joint conditions. For this purpose, this study briefly reviewed of the previous earth pressure studies, and then numerical parametric studies were conducted based on the Discrete Element Method (DEM) to overcome the limitations of the previous studies. The numerical tests were carried out with the controlled parameters including rock types and joint conditions (joint shear strength, joint inclination angle, and joint set), and the magnitude and distribution characteristics of the induced earth pressure were investigated considering the interactions between the ground and the excavation wall. In addition, the earth pressures induced in rock stratum were compared with Peck's earth pressure for soil ground. The results showed that the earth pressure against an excavation wall in jointed rockmass were highly affected by different rock and joint conditions and thus different from Peck's empirical earth pressure for soil ground.
Keywords
Rock excavation; Earth pressure; Rock type; Joint condition; Soil-Structure Interaction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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