Weak soils deformations during excavation of deep pits in seismic regions and adjacent buildings protectionN.S. Nikiforova1, Doct. tech. Sci.;
Nguen Van Khoa2, graduate student;
A.B. Konnov, engineer
1 Research Institute of construction physics of RAASN
(127238, Moscow, Locomotivny Drive, 21)
2 FSFEI HE “National research Moscow state
(129337, Moscow, Yaroslavskoye Highway, 26)
Abstract. Displacements of diaphragm wall supported with reinforced slabs and settlements of adjacent buildings are being investigated caused by deep pit excavation in weak soils of Vietnam. Seismic impact has been considered. Results of numerical geotechnical modelling are compared to monitoring data of building settlements. Recommendations includes underpinning of the building foundations with jet grouting piles and calculation method for settlements.
Key words: deep pit, weak soils, seismic impact, jet grouting.