000			a
999			_c11390 _d11390
003			OSt
005			20250408123030.0
008			200224b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_912446 _aRay, S.
245			_aGround Vibration Attenuation Relationship for Underground Blast _b: A Case Study
250			_aVol.100(4), Dec
260			_aNew York _bSpringer _c2019
300			_a763-776P.
520			_aFor a particular important infrastructure project, a deep open excavation was necessary although a few sensitive structures were located near the excavation site. For the existing structures, low values of safe peak particle velocities resulting from blasts were stipulated: 3 mm/s, 10 mm/s and 20 mm/s. Site-specific relationship was developed by exploring different models in addition to the popular power model. Alongside, different exponents were used for evaluating the best-fit scaled distance formula in addition to the generally adopted value of ‘0.5’. Reciprocal model with an exponent of 0.667 was identified as the best suited for the site under consideration. The safe charge weights during blasting corresponding to the stipulated safe PPVs were evaluated for varying distances and were provided in graphical form for ready reference. The site-specific study helped to arrive at practical and efficient blasting design. The guidelines in IS codes for measurement and monitoring during the controlled blasting operation were also discussed. This case study would serve as a reference for practicing engineers towards planning and implementation of similar blasting activities in a more efficient manner.
650		0	_94690 _aConstruction Engineering and Management (ME-CE)
700			_912447 _aDauji, S.
773	0		_x 2250-2149 _tJournal of the institution of engineers (India): Series A _dSwitzerland Springer
856			_uhttps://link.springer.com/article/10.1007/s40030-019-00382-y _yClick here
942			_2ddc _cAR