Soft foundation treatment method based on gabion wall reinforced soil and dynamic compaction

Abstract

The invention provides a soft foundation treatment method based on combination of gabion wall reinforced soil and dynamic compaction. The method includes the steps that (1), an excavator is used for excavating a gabion wall guide groove; (2), a grid gabion densely filled with stones is lowered into the gabion wall guide groove, and the gabion wall is built; (3), a soil mass body of a soft soil area surrounded by the gabion wall is tamped in layers by a tamper to reach a designed elevation; (4), a compaction treated soil layer surface is leveled, and geosynthetic reinforcement cushions are laid; (5), cement mortar is poured into the gabion wall; (6), a static load test is used for testing the reinforcement effect after the perfusion is completed within 6-9 days. According to the soft foundation treatment method based on combination of the gabion wall reinforced soil and the dynamic compaction, the bearing capacity of the foundation is improved, foundation settlement is reduced, and thehorizontal upheaval deformation can be limited; the drainage consolidation of the soil mass body of a tamping site is accelerated, so that the soil strength of the foundation is improved. The treatment method has the comprehensive effectiveness of load bearing, drainage, dynamic compaction, reinforcement and so on, the construction mechanization degree is high, and the construction period can be shortened obviously.

Description

technical field [0001] The invention belongs to the technical field of soft soil foundation treatment, and relates to a soft foundation treatment method based on the combination of gabion wall reinforced soil and dynamic compaction. Background technique [0002] With the rapid development of my country's national economy, the country's continuous increase in infrastructure construction, my country's expressway and railway construction have achieved rapid development, and the problem of soft soil foundation has become increasingly prominent, which has become the key to affecting project quality, construction period and project cost one of the factors. The traditional treatment methods for large-area weak foundations mainly include the dynamic compaction method for deep compaction of soft soil by increasing the compaction work, the preloading method of accelerating the drainage and consolidation of soft soil, and the use of piles to transmit the upper load. The piling method t...

AI Technical Summary

Problems solved by technology

At the same time, due to the special geographical location of the valley area, it is not conducive to the entry and exit of machinery, the supply of raw materials and electricity, and is not suitable for large-scale construction operations.

Although there are many methods for the treatment of soft soil foundation, when it is treated, the above-mentioned traditional methods are used in the process of treating soft soil foundation in mountainous areas due to reasons such as long construction period, high cost, limited treatment depth, and difficulty in controlling post-construction settlement. The effect is not obvious

Images