Modern technology of construction of underground part of buildings in urban conditions

It is considered the construction of the underground part of buildings and structures by "Moscow method", the essence of which is an arranging of pit’s enclosing structure – "wall in ground" in common with the underground part of a building, when pit enclosure is braced in outward thrust with disks of major floors of the underground part of the erecting building, which are connected to each other by a system of spacers, suspensions and racks forming support structure. The positive and negative features of the method are given. The article summarizes the experience of this method, which is advisable to use in construction of the underground part of buildings or structures in cramped urban conditions, provided that the enclosing structure of a pit is "wall in ground". One highlights the stages and gives the main specific features of the method. It is shown that this method leads to a reduction of work costs at the zero cycle, but it increases the duration of work