METHOD OF TRENCHING FILLING (VERSIONS), FILLING DEVICE AND DEVICE FOR LAYING OF GEOTEXTILE MATERIAL ABOVE PADDING MATERIAL Russian patent published in 2002 - IPC

FIELD: construction engineering. SUBSTANCE: method of trench filling includes operations of laying geotextile material on trench walls and bottom laying into trench of structure selected from group covering fiber-optic, electric, telephone cables, pipelines and storage tanks; filling of padding material round laid structure. Padding material consists of stone pieces sizing within 38 mm and filling only some part of trench; wrapping of geotextile material round padding material; filling of ground above geotextile material with aim of filling fully the trench. Some other versions of method of trench filling are described. Filling device has mechanisms for, first, filling of padding material round structure in trench, and then, filling of filling material above padding material. Filling device additionally has source of geotextile material on padding machine and roller protruding from padding device. Geotextile material runs from its source to pass round roller for being laid into trench at preset level above padding material. Device for laying of geotextile material has a frame whose dimensions and configuration provide for its fastening to vehicle installed for advancing along one of trench sides and holding at least one part of said frame above trench, source of geotextile material located on frame, and straightening device protruding from the frame with geotextile material passing under straightening device during its laying into trench. EFFECT: higher operating reliability of structures laid into trench. 2 cl, 15 dwg