During excavations in the rock mass for constructions of roads and buildings in urban areas, the only parameter that can be predicted is the excavation slope. In urban areas excavations some-times have to be made vertically with demanding support systems, which require strict technical construction. The deformability and strength properties of the rock mass are determined from geotechnical investigation and the use of the rock mass classification system. It is then possible to make the geotechnical model and perform the stability and stress-strain analyses. It is first assumed that the rock mass slope is unsupported during excavation. If a low initial factor of safety is obtained, the stability analysis should include a support system. The interactive design is applied throughout construction of the support system and includes extensive monitoring. A re-design of the excavation and additional support measures are required when monitoring imply on significant deviations of defined conditions.
Skip Nav Destination
Optimization of Rock Mass Support Systems During Deep Excavations
M. Grošic ;
D. Udovic ;
Paper presented at the ISRM Regional Symposium - EUROCK 2009, Cavtat, Croatia, October 2009.
Paper Number: ISRM-EUROCK-2009-066
Published: October 29 2009
- Share Icon Share
- Search Site
Grošic, M., Udovic, D., and V. Jagodnik. "Optimization of Rock Mass Support Systems During Deep Excavations." Paper presented at the ISRM Regional Symposium - EUROCK 2009, Cavtat, Croatia, October 2009.
Download citation file: