An assembleable soft soil foundation surcharge preloading reinforcement device and its setting method

Abstract

The invention discloses a dismountable soft foundation load-heaped precompression reinforcement device and a setting method thereof. The dismountable soft foundation load-heaped precompression reinforcement device comprises a steel pipe support, a water bag, a protection layer, a base plate, side guard plates and hooks, wherein the water bag is hooked in the steel pipe support through hanging holes in binding areas and the hooks located on the steel pipe support and matched with the hanging holes; a water inlet and an exhaust vent are formed in the upper part of the water bag; a water outlet is formed in the lower part of the water bag; the size of the water bag filled with water is bigger than that of the steel pipe support; the protection layer wraps the water bag, is arranged in the steel pipe support, and clings to the steel pipe support; the difference value between the height of the water level after the water bag is filled with the water and the height of each side guard plate is smaller than 3m. The dismountable soft foundation load-heaped precompression reinforcement device has the advantages that the overall stability is higher; not only can the consumption of natural materials, such as soil and dinas, be reduced, the test cost be reduced and the workload be reduced but also the operation is simple, the load adjustability is strong, the environmental pollution is reduced, and the application range is wider.

Description

technical field [0001] The invention belongs to the field of road engineering in civil engineering, and in particular relates to an assemblable soft soil foundation surcharge preloading reinforcement device and a setting method thereof. Background technique [0002] The surcharge preloading method, also known as the surcharge preloading drainage consolidation method, is one of the methods for strengthening soft soil foundations. It is divided into two methods: equal load preloading and overloading preloading. Its mechanism is to apply load through the upper part of the site, so that the pore water in the soil is discharged along the drainage board, gradually consolidated, the foundation subsides, and the strength gradually increases. In the existing surcharge preloading technology, the nearby filling materials such as soil and sand and gravel are generally placed on the soft foundation evenly as the surcharge preloading load to complete the surcharge preloading process. Thi...

AI Technical Summary

Problems solved by technology

Although this device can solve the need for a large preload on the soft soil foundation, since there is no support and protection measures around the water bag, it is prone to tilt during the loading process, and the bottom of the water bag is placed directly on the soft soil foundation. The distribution of the load is uneven. At the same time, because the lower part of the water bladder is under high water pressure, there is no local reinforcement measure, and there is a risk of rupture of the water bladder material.

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