7Kaiser P K, Hewitt K J. Effect of groundwater flow on the stability and design of retained excavations[J]. Canadian Geotechnical Journal, 1982,19(2):139-153.
8Ardejani F D, Singh R N, Baafi E, et al. A finite ele- ment model to: 1. predict groundwater inflow to sur- face mining excavations[J]. Mine Water and the Envi- ronment, 2003,(22) :31-38.
9Benmebarek N, Benmebarek S, Kastner R. Numerical studies of seepage failure of sand within a cofferdam [J]. Computers and Geotechnies, 2005,32 (4) : 264 -273.
10Chen B, Hsiung B, A case study on the behaviour of a deep excavation in sand[J]. Computers and Geotech- nits, 2009,36(4) :665 -675.