Movable feeding and constructing method for dynamic reinforcing surface layer of large area flabbiness foundation

Abstract

A movable filler for power reinforcing the surface course of a large-area soft and weak foundation and the construction method for the movable filler is provided, which pertains to the technical field of water conservancy, harbor and construction technology. Wherein, the movable filler essentially comprises the following three structural parts: earthworker fabric or earthworker grid fabric at a base course (1), an earthworker bag course (3) and a rubber protective board (4). The method in the invention is to tamp in three times the movable filler at the surface course, which solves the problems associated with the reinforcing of foundation at area without sand and stone such as high investment and long period, etc., solves well the normal power reinforcing of a soft and weak foundation without sand and stone; the construction period is short, and the movable filler at the surface course can be used in repeated way.

Description

technical field [0001] The present invention relates to a dynamic reinforcement packing layer structure for large-area weak foundations and a construction method based on the structure, especially a movable packing that can be used to replace sand and gravel packing and a construction method using the mobile packing layer. Specifically, it relates to a large-area soft foundation dynamic reinforcement surface layer mobile filler and a construction method thereof. Background technique [0002] At present, the combination of drainage consolidation and surface dynamic compaction is often used to deal with high water content and ultra-weak cohesive soil foundations. Drainage consolidation includes vacuum dewatering, vacuum-electroosmosis combined dewatering and other construction methods. Through drainage consolidation, it can achieve the optimal water content required for surface dynamic compaction; low-energy dynamic compaction is the most typical surface dynamic compaction met...

AI Technical Summary

Problems solved by technology

The sand and gravel filler for dynamic compaction construction is a restrictive factor for projects in areas with little (lack of) sand and gravel, which will greatly increase the cost of the project

[0004] 2. Dynamic compaction on loose sand and gravel filler will inevitably leave a large number of rammed pits of different depths. The sand and gravel filler at the ramming point is embedded in a lot of soil layers and forms a dense soil column under the ramming point. The other sand and gravel fillers are less embedded in the soil layer, which makes the soil layer uneven in the plane after dynamic compaction, which affects the safety of the superstructure

[0005] 3. After the sand and gravel filler is embedded in the soft soil layer, the drainage effect of the filler layer is reduced. Under the action of the tamping force, the pore water in the soil cannot be discharged freely

[0006] 4. The traditional method of laying fillers takes a certain period of time

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