A Realistic Fracture System Model for Engineering Analysis of Underground Excavations

摘要：

This paper presents a novel method for realistically characterizing discontinuity systems for underground excavations. The basic idea is to sample and simulate discontinuities at different scales. A combined sampling technique, which consists of axionometric projection and 3D-digital images, makes possible the efficient acquisition of detailed discontinuity data. Minor discontinuities are simulated stochastically based on their representative orientation statistics, with size parameters estimated using analytical methods for circular window sampling. Censored major discontinuities are simulated conditionally using actual intersection locations and true orientations, with discontinuity sizes first assessed using stochastic forward modeling. This method has been applied to the Raabstollen adit, part of an underground mine complex in eastern Styria, Austria.

作者: Q.Liu D.S.Kieffer K.Klima F.J.Brosch

作者单位: Institute of Applied Geosciences, Graz University of Technology, Austria

会议类型: 国际会议

会议名称: 2009年岩石力学国际研讨会

会议地点: 香港

会议语种:英文

页码: 1-6

在线出版日期: 2009-05-19（万方平台首次上网日期，不代表论文的发表时间）