Determination of parameters of compensatory injection into ground massifs for the deformation protection and safety of planned position of buildings, structures, bridges, tunnels, subways and other objects of transport infrastructure
The report on the examination of a residential building has established excessive settlement of pile foundations and cracks of different degrees of opening in the walls. The article gives a theoretical basis for the use of the technology of compensatory injection of special mineral mixtures into the volumes of the soil mass, with the help of which it is possible to eliminate excessive settlements. In order to solve the problems concerning the elimination of building settlement and its return to the initial, planned, height position the problem of numerical modeling of the application of compensatory injection of special mineral mixtures in order to change the stress-strain state of the soil mass in contact with the foundation of the building was developed and solved in the article. As a result of numerical modeling the volumes, pressure, sequence of injection site, duration of compensatory injection of special mortars for its elevation have been determined, the regulations of works on restoration of the planned elevation of a residential brick building to the designed position have been developed.