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

A construction method and technology of tubular piles, applied in roads, sheet pile walls, foundation structure engineering, etc., can solve the problems of high embankment filling specifications, difficult to degrade concrete pile heads, long construction period, etc., to achieve filling and compaction The effect of low requirements, small scope of base reinforcement, and short construction period

Inactive Publication Date: 2009-05-27
何志红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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. T

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] CFG pile, pipe pile embankment reinforcement system construction method embodiment 1: in the following order

[0029] 1. Construction of supporting structure bottom pipe piles or 1 row of pipe piles or CFG piles on each side;

[0030] 2. Laying steel bars, standing formwork, pouring concrete for supporting structure, and reserve cup openings for electrochemical support and prestressed anchor cable channels in the concrete for supporting structure;

[0031] 3. The soil is compacted and filled to the bottom of the prestressed raft to construct the pile foundation construction platform;

[0032] 4. Construction of 4 rows of pipe piles or CFG piles in the middle of the embankment;

[0033] 5. Clean the prestressed raft foundation, and clean the prestressed raft foundation trough on the middle pipe pile or the upper pile foundation construction platform of the middle CFG pile;

[0034] 6. Pre-stressed anchor cables through the raft, reinforcement of the raft, and pre-stressed an...

Example Embodiment

[0044] CFG pile, pipe pile embankment reinforcement system construction method embodiment 2: in the following order

[0045] 1. Construction of supporting structure bottom pipe piles or 2 rows of pipe piles or CFG piles on both sides;

[0046] 2. Laying steel bars, standing formwork, pouring concrete for supporting structure, and reserve cup openings for electrochemical support and prestressed anchor cable channels in the concrete for supporting structure;

[0047] 3. The soil is compacted and filled to the bottom of the prestressed raft to construct the pile foundation construction platform;

[0048] 4. Construction of 12 rows of pipe piles or CFG piles in the middle of the embankment;

[0049] 5. Clean the prestressed raft foundation, and clean the prestressed raft foundation trough on the middle pipe pile or the upper pile foundation construction platform of the middle CFG pile;

[0050] 6. Pre-stressed anchor cables through the raft, and lay raft steel bars and tensile pre-str...

Example Embodiment

[0060] CFG pile, pipe pile embankment reinforcement system construction method embodiment 3: in the following order

[0061] 1. Construction of supporting structure bottom pipe piles or 3 rows of pipe piles or CFG piles on both sides;

[0062] 2. Laying steel bars, standing formwork, pouring concrete for supporting structure, and reserve cup openings for electrochemical support and prestressed anchor cable channels in the concrete for supporting structure;

[0063] 3. The soil is compacted and filled to the bottom of the prestressed raft to construct the pile foundation construction platform;

[0064] 4. Construct 20 rows of pipe piles or CFG piles in the middle of the embankment;

[0065] 5. Clean the prestressed raft foundation, and clean the prestressed raft foundation trough on the middle pipe pile or the upper pile foundation construction platform of the middle CFG pile;

[0066] 6. Pre-stressed anchor cables through the raft, and lay raft steel bars and tensile pre-stressed ...

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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...

Claims

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Application Information

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IPC IPC(8): E02D27/12E02D5/34E02D7/20E02D7/02E01B27/00
Inventor 何志红
Owner 何志红
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