Air explosion device

Abstract

The invention discloses an air explosion device. The air explosion device includes a cylinder; the cylinder includes a cylinder tube, a piston and a piston rod; the upper end of the cylinder tube is provided with a cylinder front cover, the lower end is provided with a cylinder rear cover, and cylinder center rings arranged inside are fixed to the cylinder tube respectively; the cavity between thecylinder center ring and the cylinder front cover constitutes an air explosion chamber, and the cavity between the cylinder center ring and the cylinder rear cover constitutes an energy storage chamber; an air blast hole is arranged on the lower cylinder wall in the air explosion chamber; a pilot piston moves in the air explosion chamber; an energy storage piston moves in the energy storage chamber; the piston rod passes through the cylinder front cover, the pilot piston, the cylinder center ring and the bottom end of the energy storage piston from top to bottom to be fixed with the energy storage piston; the piston rod is slidingly matched with the pilot piston and the cylinder center ring, and the energy storage piston is tightly matched with the piston rod; air holes are arranged on the cylinder front cover, the pilot piston and the cylinder center ring; and the air pressure cover on the top of the piston rod and the upper end of the air inlet hole of the front cover can be tightlymatched. The air explosion device realizes the air explosion in the soft soil body to provide horizontal channels from shallow to deep, and can cooperate with the ramming vibration wave to acceleratethe soil drainage consolidation speed, improve the treatment depth, and reduce the post-work creep.

Description

technical field [0001] The invention relates to the technical field of treating saturated soft soil foundations by a dynamic compaction method, in particular to an air explosion device, which quickly generates drainage channels through air explosions to deal with the problem of difficult drainage caused by silting of saturated soft soil foundations. Background technique [0002] Soft soil is mostly distributed in the southeast coast of our country. With the production development of human society and the continuous increase of population density, more and more soft soil will be used as the foundation of buildings. Soft soil has high natural water content, large natural void ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time, high sensitivity, large disturbance, poor water permeability, complex layered distribution of soil layers, various The physical and mechanical properties of different layers are quite different. Thes...

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Problems solved by technology

[0003] The invention provides a gas explosion device, which solves the problem of difficult drainage caused by the silting of saturated soft soil foundation in the prior art, especially the lack of drainage channels, which is easy to produce rubber soil, and the effect of tamping is not good, resulting in difficult drainage , dealing with technical issues of limited depth,

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