Prediction of settlement of buildings surrounding deep excavations in Viet Nam

This paper numerically calculates the correction coefficients for formula suggested by (Ilyichev V.A et al, 2007) determining the settlement of buildings surrounding deep excavations and lateral displacement of diaphragm walls. Three construction methods of diaphragm walls, five typical geological conditions in big cities of Vietnam are considered in the numerical analyses. Two depth levels of the walls, which are 8 m and 10 m, are selected for a typical range of basements. The influence of seismic loading is also evaluated in this study. The results demonstrate that the calculated coefficients (K_r ) is higher for weak water-saturated soil conditions than that for medium strength soils. Also, the influence of seismic loading on the settlement of buildings and lateral displacement of diaphragm walls shows to be significant for all cases.