Abstract
A detailed field survey of discontinuity (fractures) was carried out in the proposed Abo-Hederya Quarry Site, 70 km east Missan city, south-east of Iraq, where Al-Mukdadiya Formation (Upper Miocene-Pliocene) is exposed. The discontinuity survey was carried out in 10 stations covering the study area. At each station notes were collected about beds (lithology, thickness and orientation) and discontinuities (orientation, density, spacing, persistence and aperture). The slope stability analysis suggests that there is no real hazard area that could affect the quarry in future. Tectonic analysis demonstrates that tension fractures are common in the study area, while shear fractures (okl, hko, hol and hkl) are the less. The maximum principal stress direction in the study area is N (15 - 40) E, which is compatible with the regional tectonic stress in the area.
Highlights
The stability of rock slopes is significantly influenced by the structural setting of the rock in which the slope is excavated which refers to naturally occurring breaks in the rock such as bedding planes, joints and faults which are naturally called discontinuities
The study area is located in Abo-Hederya proposed quarry in Missan Governorate 95 km east of Amara city within Mukdadiya Formation (Figure 1)
The study area is located within Himreen subzone, foothill zone, which is a part of unstable shelf according to tectonic map of Iraq (1996) (Figure 2) [5] [7]
Summary
The stability of rock slopes is significantly influenced by the structural setting of the rock in which the slope is excavated which refers to naturally occurring breaks in the rock such as bedding planes, joints and faults which are naturally called discontinuities. The properties of discontinuities relative to stability include orientation, persistence, roughness and infilling [1]. The main aims of the present study are identifying the regional stresses led to these discontinuities, assess-. (2016) Engineering and Tectonic Study of Rocks Discontinuities in the Proposed Abo-Hederya Quarry Site, Missan SE Iraq. A. Al-Zubaydi et al ment of the effect of rock discontinuities (orientation, density, spacing, persistence, and aperture) on rock slope stability and the influence of rock slope stability on the proposed Abo-Hederya quarry that affects the safety of the quarry
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
