Face stabilization of deep tunnels using longitudinal fibreglass dowels
作者： Pierpaolo Oreste
DOI: 10.1016/J.IJRMMS.2012.07.011
关键词: Finite difference 、 Simplified methods 、 Current practice 、 Rock mass classification 、 Engineering 、 Geotechnical engineering 、 Spherical geometry 、 Structural engineering 、 Dimensioning
摘要: When the stability of an excavation face in a deep tunnel is not ensured by the strength characteristics of the rock mass, it is current practice to proceed with reinforcement of the face using longitudinal fibreglass dowels. An analysis of the effect of these reinforcements and a correct dimensioning can be obtained through three-dimensional numerical modelling, which is very burdensome from a computational point of view. The simplified methods that are at present available do not allow the maximum force in the dowels to be …
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