| 摘要 |
FIELD: building, particularly technology and equipment for structurally unstable ground, for instance for industrial and civil building. ^ SUBSTANCE: method involves drilling well; forming longitudinal stress concentrator on wall thereof, locking upper well part along with injection zone separation; introducing binder under pressure in ground and forming plane of fracture in ground. Longitudinal concentrator is created by advancing, impressing and subsequent rolling of sliding punch-type rotary lentil-shaped disk within injection zone. The disc is connected with retainer through stop member. Upper well part is closed by filling gap between well wall and binder introduction means with quick-hardening material. Binder introduction means is made as perforated tube formed of elastic material and having diameter lesser than well diameter. Stress concentrator forming means has tube, head and cutter arranged in groove of the head. The cutter is made as sliding punch-type rotary lentil-shaped disk and connected to retainer by stop member including clamp and fork. ^ EFFECT: increased efficiency. ^ 2 cl, 6 dwg, 1 ex, 1 tbl |
