Soft soil foundation dynamic compaction construction device and method

Abstract

The invention discloses a soft soil foundation dynamic compaction construction device. The soft soil foundation dynamic compaction construction device comprises an insulating layer, an upper shell, screws, perforating units, igniter series connectors, an aggregate tank, perforations, a discharging valve and a lower shell. The dynamic compaction construction method adopting the soft soil foundationdynamic compaction construction device comprises the steps that an open channel is dug in the periphery of a to-be-compacted area, a frozen pile foundation is arranged, the perforations are punched in the underground of the to-be-compacted area, the perforations are filled with aggregate, a special-shaped pored rammer is adopted for compaction, drainage is conducted, and after water in a perforation well is drained to the open channel, a perforation wellhead is covered with a sealing cover, vacuumizing is conducted for 24h, drainage is conducted again, the aggregate is backfilled into the perforation well, and a common rammer is adopted for conducting dynamic compaction on a soft soil foundation. The soft soil foundation dynamic compaction construction device is simple in structure, capable of being assembled according to actual construction requirements and high in adaptability, the construction method adopts a method of arranging transverse piles in an extruding mode and a local extruding mode, thus the effect similar to an extruding machine is achieved, water in the soft soil foundation can be effectively drained, and rubber soil is prevented from being formed in the dynamic compaction process.

Description

technical field [0001] The invention relates to the technical field of soft soil foundation reinforcement. More specifically, the present invention relates to a soft soil foundation dynamic tamping construction device and construction method. Background technique [0002] Soft soil foundation refers to the weak soil layer with low strength and high compression, most of which contain certain organic matter or high water content. Due to the low strength of soft soil and large amount of sinking, it often brings great harm to road engineering. If it is not handled properly, it will have a great impact on the construction and use of roads. [0003] The existing soft soil foundations can be treated in various ways according to the actual situation; for example, laying drainage boards in the soft soil foundation area, using vibrating devices to vibrate piles, replace fillings, or use dynamic compaction technology to compact the soil; but The drainage board installed is easy to bl...

AI Technical Summary

Problems solved by technology

Due to the low strength of soft soil and large amount of sinking, it often brings great harm to road engineering. If it is not handled properly, it will have a great impact on the construction and use of roads.

[0003] The existing soft soil foundations can be treated in various ways according to the actual situation; for example, laying drainage boards in the soft soil foundation area, using vibrating devices to vibrate piles, replace fillings, or use dynamic compaction technology to compact the soil; but The drainage board installed is easy to block, the water outlet is limited, and the vibrating and replacement are too labor-intensive, which affects the construction progress. When the dynamic compaction reaches a certain level, the pressure of the interstitial water in the soft soil foundation accumulates, and it is easy to produce rubber soil, resulting in poor compaction effect.

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