METHOD FOR EXISTENT BUILDING, BUILDING STRUCTURE AND UNDERGROUND SERVICE LINE PROTECTION IN CONSTRUCTION AFFECTED ZONE

摘要

FIELD: construction, particularly to protect existent objects near construction site.;SUBSTANCE: method involves forming geotechnical screen in ground, wherein the geotechnical screen is made by driving injectors in ground between foundations of existent objects and objects to be erected and injecting consolidation solution in ground under pressure. The geotechnical screen is composite and formed with the use of injectors grouped in two rows, namely in passive and active ones. The passive injector row is located from side of object to be erected. The active injector row is installed from side of existent object. Consolidation solution is initially supplied to passive injector row by single solution injection in ground and then in active injector row by repeated solution injection in ground to obtain initial deflected mode of existent object base and foundation ground.;EFFECT: reduced negative influence of geotechnical screen on filler structures of objects to be erected, increased efficiency and reliability of object protection in densely built-up areas.;4 cl, 3 dwg