The spark for the creation of printed electrohydropulse piles
(57) Abstract:The spark for the creation of printed electrohydropulse piles, comprising a casing formed with a chamber, electrodes attached through the dielectric, betonbet connected with the upper electrode, characterized in that on the side surface and the base of the forming chamber are made conical holes, placed at the base in one row, the average diameter R1=(0,5-0,65)R with step h1and on a side surface in staggered increments
< / BR>where R is the diameter of the borehole;
a - the distance from the axis at the holes to the base of the camera,
the orifices larger diameter facing outward, and the angle of inclination of the generatrix of the cone to the horizon 30-45omoreover , the lower electrode is made removable, and betonbet has cutouts on the side.
FIELD: building, particularly for constructing foundations of various building structures.
SUBSTANCE: bearing pile comprises head, rod and tip fixed to embedded rod part by embedded member. The tip is formed of thermoplastic concrete and has electric heater located inside the tip. Electric heater heats the tip after driving thereof into ground as far as it will go to obtain softening temperature of 80-150°C. Then the pile is fully driven in ground. Electric heater wires are placed in tube in longitudinal rod direction and brought outside under pile head for connection thereof with electric power source.
EFFECT: increased load-bearing pile capacity due to provision of widened pile tip support area.
2 cl, 5 dwg
FIELD: bulkheads, piles, or other structural elements specially adapted to foundation engineering, particularly concrete or concrete-like piles cast in position with enlarged footing or enlargements at the bottom of the pile.
SUBSTANCE: reinforcement device is used to erect pile foundation with the use of foundation pile having at least one longitudinal cavity. Reinforcing device comprises a number of joined reinforcement members hingedly connected with central annular member located so that reinforcement device may be collapsed during installation and erected during device usage. Reinforcement device is connected to pile by at least one member working in tension. Foundation pile reinforced with the use of said device and method for foundation pile driving and pile bottom reinforcement are also disclosed.
EFFECT: increased uniformity of reinforcement distribution over pile bottom, improved compression and stretching force damping, decreased labor inputs and material consumption.
36 cl, 25 dwg
FIELD: construction, particularly bored piles with enlarged footing or enlargements at the bottom of the pile.
SUBSTANCE: method involves drilling well; filling the well with concrete mix and non-detonating composition including fuel and oxidizer; igniting non-detonating composition by applying low-voltage pulse to electric igniter and combusting non-detonating composition in deflagration regime to create camouflet void with following concrete mix hardening. The fuel is solid hydrocarbon selected from polyethylene, polypropylene and polystyrene. The oxidizer is sodium or potassium chlorate. Non-detonating composition is supplied in well before well filling with concrete mix.
EFFECT: decreased pile production time due to accelerated concrete mix hardening and improved produced pile quality.
SUBSTANCE: invention refers to building, in particular, to strengthening of the bases under the basements. The way of strengthening of the basement erected on waterlogged priming coats and near to the located constructions includes supply of early strength concrete in the metal tubing established in driven wells, drilled through a basic part of the basement and a ground. Pipes are made with the welded boots, in pipes lower explosive charges and fill with early strength concrete, then the explosive charges are detonated, remaining hollownesses of driven wells and pipes are filled with early strength concrete.
EFFECT: provision of reliable strengthening of the basements erected in waterlogged priming coats and near to located constructions; increase of load-carrying capacity.