Foundation treatment device and foundation treatment method

Abstract

The invention discloses a foundation treatment device and a foundation treatment method. The device comprises a floral tube (1) and a plurality of grouting discs (2), wherein a plurality of circles of grouting holes (5) with different storey heights are formed in the floral tube (1); positioning holes with different storey heights are further formed in the floral tube (1); each grouting disc (2) comprises a hollow disc body (7) and a plurality of grouting ducts (8); all the grouting ducts (8) of each grouting disc (2) are positioned on the side wall of the corresponding disc body (7); each disc body (7) is provided with a positioning assembly which is used for positioning together with the corresponding positioning hole of the floral tube (1). The method is characterized in that after padding is filled layer by layer and is tamped, the grouting discs (2) are placed, during grouting finally, slurry enters the grouting discs (2) through the floral tube (1) and enters soil on the peripheries of expanding holes (22) from the grouting ducts (8) to form concrete nodes (24), and the concrete nodes (24) of different piles are cross-linked. By the device and the method, regions among piles can be reinforced effectively.

Description

technical field [0001] The invention relates to the field of soil foundation reinforcement treatment with collapsibility and excessive compression deformation, in particular to a foundation treatment device and a foundation treatment method. Background technique [0002] In loess and miscellaneous fill, silt, cohesive soil and other foundations, there are generally hazards of collapsibility and excessive compression deformation, and it is necessary to strengthen the foundation to improve its bearing capacity. The foundation reinforcement in the prior art mostly adopts the method of punching and expanding the foundation hole, that is, the foundation hole is drilled first, and then some filler is filled into the hole, and then the pillar hammer is repeatedly lifted and then dropped to expand the foundation hole by impact, and then expand the hole The middle-layer filling is further compacted by the column hammer, and then the column hammer punching and expansion pile is formed...

AI Technical Summary

Problems solved by technology

[0003] However, there is still a biggest defect in the way of foundation treatment in the prior art: that is, the influence range of the column hammer punching expansion pile on the compaction and reinforcement of the soil is small, only in the range of the pile body, and there are still weak points between the piles. Unreinforced or reinforced areas with insufficient strength

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