ESTIMATION OF STRESS AND STRAIN LEVELS INDUCED BY BLASTING VIBRATIONS USING MEASURED PARTICLE AND PROPAGATION VELOCITIES AT BANI KHALID QUARRY

I. Abdel-Rasoul, Elseman; A. Omran, Awad

doi:10.21608/jesaun.2007.114358

ESTIMATION OF STRESS AND STRAIN LEVELS INDUCED BY BLASTING VIBRATIONS USING MEASURED PARTICLE AND PROPAGATION VELOCITIES AT BANI KHALID QUARRY

Document Type : Research Paper

Authors

¹ Associate Professor, Mining and Metallurgical Eng. Dept., Faculty of Engineering, Assiut University,

² Professor, Geology Department, Faculty of Science, Assiut University,

10.21608/jesaun.2007.114358

Abstract

Quarry blasting operations are necessary to supply raw materials; nevertheless they produce ground vibration stresses in the foundations of the nearby structures and may affect their stability. Subsequently, estimation of the stress-strain levels can help the engineers to evaluate safety possibilities of the high wall slopes or the nearby structures. In the present study, shallow seismic refraction surveys have been carried out in Bani Khalid quarry to determine the velocity of the compression and shear waves of the quarry area. These seismic wave velocities have been used to identify the dynamic elastic constants such as Poisson’s ratio, modulus of elasticity, and shear modulus. Ground vibration measurements, another set of field measurements, include recording of the three mutually perpendicular components of the peak particle velocities induced by the blasting operations in the quarry. The results of these measurements and calculations have been employed to estimate the normal and shear stresses and strains induced by the quarry blasting operations

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