Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


akron1251399675.pdf (2.73 MB)

ETD Abstract Container

Abstract Header

Pressuremeter Applications in Laterally Loaded Drilled Shaft Socketed into Transversely Isotropic Rock

Sharo, Abdulla Ahmad
http://rave.ohiolink.edu/etdc/view?acc_num=akron1251399675

Abstract Details

2009, Doctor of Philosophy, University of Akron, Civil Engineering.
Rock mass often exhibits transversely isotropic stress strain behavior due to the inherent mineral grain orientation and the presence of bedding planes of parallel sets of joints. Recognizing this important aspect of rock behavior, there has been a significant amount of research efforts in the past to develop pertinent methods for determining the relevant elastic properties that can be used to characterize the anisotropic rock mass behavior. However, after a careful review of literature, it appears that only recently that a few researchers have devoted their research attention to the proper analysis method for analyzing the laterally loaded drilled shafts socketed in a rock mass that exhibits transversely isotropic elastic behavior. There are five required independent elastic constants in order to completely characterize the transversely isotropic elastic behavior: These five independent elastic constants are:, Ev is the Young’s modulus in the vertical direction to the isotropic plane; Eh is the Young’s modulus in the horizontal direction to the isotropic plane; vvh is Poisson’s ratio for horizontal strain due to imposed vertical strain; vhv is Poisson’s ratio for vertical strain due to imposed horizontal strain; Gvh is the shear modulus in the vertical plane.This research work develops a methodology to use the pressuremeter test to extract the relevant elastic constants for transversely isotropic rock A series of systematic parametric analysis using the ABAQUS finite element program is carried out from which a method was developed for interpreting five elastic constants of transversely isotropic rock mass using pressuremeter test data. A comprehensive database of experimentally determined five independent elastic constants for the transversely isotropic rocks from literature review was presented in this research. Also, possible statistical cross correlations among the theoretically independent elastic constants were statistically examined. Empirical equations for estimating the shear modulus of a transversely isotropic rock G’, by using other elastic constants were developed. A new methodology to deduce hyperbolically shaped p-y curves of transversely isotropic rock from pressuremeter test was developed in this study through extensive theoretical and numerical simulation works. The method was validated by four case studies involving both actual full-scale lateral load test data and pressuremeter test data at the test site as well as hypothetical numerical simulation cases.
Robert Liang, PhD (Advisor)
209 p.
Engineering
Transversely Isotropic Rock; Pressuremeter; Five Elastic Constants

Recommended Citations

Citations

  • Sharo, A. A. (2009). Pressuremeter Applications in Laterally Loaded Drilled Shaft Socketed into Transversely Isotropic Rock [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1251399675

    APA Style (7th edition)

  • Sharo, Abdulla. Pressuremeter Applications in Laterally Loaded Drilled Shaft Socketed into Transversely Isotropic Rock. 2009. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1251399675.

    MLA Style (8th edition)

  • Sharo, Abdulla. "Pressuremeter Applications in Laterally Loaded Drilled Shaft Socketed into Transversely Isotropic Rock." Doctoral dissertation, University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1251399675

    Chicago Manual of Style (17th edition)

akron1251399675
3,519
© 2009, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.