Mudflat CDM method soft foundation reinforcement technology

Abstract

The invention relates to a mudflat CDM method soft foundation reinforcement technology that adopts an elevating platform ship to implement soft foundation reinforcement. The technology includes the following steps of: establishment of measurement leading marks and arrangement of control points, benchmarking and place taking of the elevating platform ship, sitting on sea bed and positioning of the elevating platform ship, place taking of a deep stirrer, and implementation of CDM construction and floating and translocation of the elevating platform ship. The invention adopts the elevating platform ship to implement soft foundation reinforcement, and as the elevating platform ship adopts a self-floating leg upright column, a working platform is combined with the self-floating leg upright column through elevation, thus forming a floating ship to ensure sufficient floatage and stability and take the tide for flexible translocation, or forming a working platform sitting on the sea bed to be suitable for shallow sea soft foundation and having stronger function of resisting wind, wave and current. During the implementation of the soft foundation reinforcement, the technology greatly reduces the manufacturing cost of special platform equipment for soft foundation reinforcement, simultaneously quickens the manufacture and installation and plays an important role in shortening working period.

Description

technical field [0001] The invention relates to a tidal flat soft foundation reinforcement technology, in particular to a tidal flat CDM method soft foundation reinforcement technology. Background technique [0002] At present, there are mainly two types of soft foundation reinforcement in tidal flat CDM methods at home and abroad: filling method and pile driving and erecting platform method. These two methods have the following disadvantages: [0003] (1) Filling method [0004] This method requires a large amount of excavated soil, and the filling area is larger than the soft foundation reinforcement area. At the same time, a wave-retaining wall must be mortared to prevent the attack of large waves. Setting up CDM piles on the filling surface increases the length of the drill pipe and wastes cement and soil. Moreover, the filling needs to be excavated after the soft foundation is treated. The construction period is long and the cost is high, and the cost is even higher d...

AI Technical Summary

Problems solved by technology

[0006] This method requires prefabricated piles to be built in the soft foundation reinforcement area, and a working platform to be erected on the top of the piles. It is not easy to drive piles, erect and remove the platform in the intertidal mudflat near the coast, and consume a large amount of steel, which is costly and has a long construction period.