Seismic Analysis of Underground Cut and Cover Structures
Seismic Analysis of Underground Cut and Cover Structures
(OP)
How do other engineers model these types of structures for seismic analysis? I have not found much guidance on these type of structures.






RE: Seismic Analysis of Underground Cut and Cover Structures
http://www.pbworld.com/library/fellowship/wang/
RE: Seismic Analysis of Underground Cut and Cover Structures
VOD
RE: Seismic Analysis of Underground Cut and Cover Structures
1. Following Wang's paper no soil lateral springs needed. Equivalent (pseudo) earth pressure will be applied to mimic displacements at the top of the box.
2. Geotechnical engineer may use SHAKE to compute free-field displacements in the soil.
3. FLAC is a great program for excavations and minig, but it requires a capable person who will be working with it full time, going to the training, conferences and talking to the support (which is very good). Learning curve is VERY steep. I would leave it to FLAC experienced Geotech to supply you with equivalent loads/displacements. Also FLAC is weak in modeling frame elements it's more catered for plates and bricks.