| 摘要 |
construction of strip foundation on subsiding ground. SUBSTANCE: process includes driving of working in the form of trench, drilling of holes, their charging and blasting. Shaped extended explosive charges are positioned along entire length of trench at equal distances from mouths of charged holes. It is blasted after explosion of hole charges which are so placed that their zones of ground blasting do not contact one another. Radius of these zones is determined by formula where k is coefficient depending of type of ground; Q is mass of charge, kg; e is strength of explosive. EFFECT: increased bearing capacity of ground of foundation. 2 dwg |
