METHOD OF TRANSFORMING CONSTRUCTION PROPERTIES OF LOW-BOUND WATERED GROUNDS BY EXPLOSION OF EXPLOSIVE CHARGES Russian patent published in 2017 - IPC E02D3/10 

FIELD: blasting.

SUBSTANCE: method of transforming construction properties of low-bound watered grounds consists in creating a cushion of draining material on the surface of compacted array, drilling of wells, placement of explosive charges therein, blasting of deep-hole charges with formation of explosive cavities and filling them with draining material falling from the cushion. The height of the drainage cushion made of inert material is not less than the radius of the cylindrical zone of the camouflage seal (R_K) of the explosive charge of the explosive substance. The wells on the tense map are placed in the apices of corners of regular polygons with the distance from the center of the polygon to the axis of the charge equal to radius of ground compaction camouflage zone (R_K). The well is drilled through a layer of the drainage cushion, the layer of low-bound watered ground, partly in the underlying mineral base - the bottom of the well is located in the underlying layer of mineral base at the depth under the layer of low-bound watered ground. The charge is made in a hydro-insulating shell with a locking mechanism made of powdered, granular or cartridge explosive which is sensitive to the initiating pulse of the linear initiator placed along the entire column of explosive charge inside the hydro-insulating shell and installed in the well so that the lower and the upper end faces of the charge are respectively in the underlying layer of the mineral base of the ground and the layer of the drainage cushion.

EFFECT: increasing efficiency of transformation of construction properties of low-bound watered grounds by explosions of explosive charges providing more complete destruction of compacted soil layer structure, increasing the density of low-bound watered grounds, providing drain formation in the form of cylindrical cavities for the entire height of compacted soil, reducing labour input and cost for preparation of ground base to erection of facilities.

8 cl, 2 dwg