CFG pile, pipe pile embankment reinforcement system and construction method thereof

Abstract

The invention relates to a CFG pile and tubular pile embankment reinforcing system and a construction method thereof, which is used in the whole field for building railway, highway, water conservancy, city planning, houses and the like. The system comprises a CFG pile or a tubular pile, a prestress raft plate, a supporting and retaining structure, an unballasted track plate or a ballasted track plate, a pile foundation construction platform and a roadbed; the CFG pile or the tubular pile comprises a bottom tubular pile of the supporting and retaining structure and a middle tubular pile or a middle CFG pile of embankment; the bottom tubular pile of the supporting and retaining structure is arranged on the lower part of the bottom of the supporting and retaining structure or two sides of the embankment; the upper part of the bottom tubular pile of the supporting and retaining structure is cast with the supporting and retaining structure; an electrochemical supporting set cup mouth and a prestress anchor rope pore canal are reserved in the supporting and retaining structure; soil is filled and compacted between the supporting and retaining structure to construct the pile foundation construction platform; the pile foundation construction platform is provided with the middle tubular pile or the middle CFG pile; the upper part of the middle tubular pile or the middle CFG pile is cast with the prestress raft plate; the prestress anchor rope pore canal is reserved in prestress raft plate; and a prestress anchor rope is arranged in the prestress anchor rope pore canal of the supporting and retaining structure and the prestress raft plate.

Description

technical field [0001] The invention relates to a CFG pile (cement fly ash gravel pile), a pipe pile embankment reinforcement system and a construction method thereof, which is applicable to the entire construction fields of railways, highways, water conservancy, municipal administration, houses and the like. Background technique [0002] Existing CFG piles and pipe piles are used as subgrade composite foundation reinforcement treatment technologies. CFG piles have deficiencies in the construction technology of clearing the soil between piles and cutting off pile heads: the scope of foundation treatment is large, the specification of embankment filling is high, the construction period is long, and conventional subgrades collide. Reinforced concrete structures need to fill the transition section, and the subgrade also needs to be filled with crushed stone on the surface of the subgrade bed. The filling compaction standard is high, the inspection procedure is troublesome, the s...

AI Technical Summary

Problems solved by technology

[0002] Existing CFG piles and pipe piles are used as subgrade composite foundation reinforcement treatment technologies. CFG piles have deficiencies in the construction technology of clearing the soil between piles and cutting off pile heads: the scope of foundation treatment is large, the specification of embankment filling is high, the construction period is long, and conventional subgrades collide. Reinforced concrete structures need to fill the transition section, and the subgrade also needs to be filled with crushed stone on the surface of the subgrade bed. The filling compaction standard is high, the inspection procedure is troublesome, the slope of the embankment is large, the construction land is large, the maintenance investment is large, and construction is required. Ancillary works: The conventional CFG pile construction process needs to remove the soil between the piles, cut off the pile head, spoil the soil, and abandon the pile head. The amount of work is large, and the concrete pile head is difficult to degrade. At the same time, social resources are wasted, which is uneconomical and environmentally friendly

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