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Scientific discovery of a unique cloud-shaped rock pillar in an ancient quarry in Zhejiang Province

L.Deng  L.H.Li  Z.F.Yang  
【摘要】:In this paper,one unique cloud-shaped nock pillar is discovered in an ancient quarry in Zhejiang Province,Textual research indicates that this ancient quarry was initially exploited La Liang Dynasty(502-557 BC}.Geological conditions of the ancient quarry arc elaborated in this paper.Field investigation results indicate that this rock pillar was left during quarrying.Geometry reconstruction through the data acquired by 3D laser scanning presents that ii has a complex shape.Threc-Dimensional finite difference stimulation using Mohr-Coulomb parameters acquired from back analysis has been conducted to analyze its stress distribution and deformation.Calculation results suggest a maximum stress of1,7 MPa in this pillar,the stress reduces from bottom to top,and from one side to the opposite side of the pillar,and finally the stress exhibits a similar trend.Vertical displacement in B side reduces from bottom to top,then increases reversely.

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1 Pengzhi Pan;Xiating Feng;;Numerical study on coupled thermo-mechanical processes in sp Pillar Stability Experiment[J];Journal of Rock Mechanics and Geotechnical Engineering;2013年02期
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