Experience gained with the sinking of piles near existing building under soil conditions in lands along the Middle Ob'
Experience gained with pile driving near existing buildings in a accordance with the author's procedure, which takes into account conditions of the spread of elastic waves that develop in the ground during the driving of piles, and which does not cause soil deformations in the foundations beds of existing buildings, is presented.
This paper systematically analyzes main factors affecting the decision of bracing system for deep foundation pits; establishes an index system of evaluation scheme and a multiobjective fuzzy optimum model of bracing schemes through fuzzy mathematical theory; and puts forward rational methods of the definiteness of objective weight and quantitating qualitative objects. A case study shows that the decision method is effective and easy to operate.