Extensics in the application of tunnel rock mass stability assessment of underground tunnel engineering
Jinyu Xu · Sichuan Building Science · 2009
Based on extensics,a multi-index assessment model for rock mass stability of underground tunnel engineering was established through the ascertainment of the classical field matter-element,segment matter-elements and the calculation of dependent degree.The classification type of rock mass stability was achieved by the quantitative numerical assessment results which considering multi-indexes comprehensively.The method made incompatible multi-index assessment results compatible and avoided the assessment classification's disaccord between the comparison of the indexes and the regulated limit results.A practical engineering example shows it's a feasible new method.