000			a
999			_c19835 _d19835
003			OSt
005			20230830121338.0
008			230830b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_921659 _aChauhan, Vinay Bhushan
245			_aLimit analysis solution for ultimate bearing capacity of footing resting on the rock mass with a circular void subjected to line loading
250			_aVol.53(2), Apr
260			_aUSA _bSpringer _c2023
300			_a334-347p.
520			_aIn this study, a finite element limit analysis-based numerical simulation is carried out using an adaptive mesh refinement technique to investigate the influence of a circular void/cavity having a diameter, dv, on the ultimate bearing capability (UBC) of a strip footing with a width, B resting over rock mass and subjected to a centrally placed line loading. The rock mass is assumed to follow the Generalized Hoek–Brown (GHB) failure criterion. The influence of rock mass parameters and void’s location concerning footing’s position on the ultimate bearing capacity is examined using a dimensionless reduction factor, Rf, and the potential failure mechanisms are investigated and discussed in detail. The effect of the void’s location concerning footing, such as the normalized vertical (W/B) and horizontal (H/B), distances of the footing to the void on the UBC is analysed. Comprehensive design table for the Rf considering various positions of the void and rock mass parameters are provided. The sensitivity analysis of these variables is also explored using parametric studies. The findings recommend that the presence of a void that exceeds a specified threshold of W/B ≥ 3.5 and H/B ≥ 4 is negligible on Rf and indicates that the development of distinct potential failure envelopes around the footing is highly governed by the void’s position from the footing, i.e. W/B and H/B.
650		0	_94621 _aCivil Engineering
700			_914967 _aPiyush Kumar
773	0		_dSwitzerland Springer _tIndian geotechnical journal _x 0971-9555
856			_uhttps://link.springer.com/article/10.1007/s40098-022-00676-2 _yClick here
942			_2ddc _cAR