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A kind of rigidity controllable pile top structure without secondary pouring and its construction method

A secondary pouring and controllable technology, which is applied in the direction of infrastructure engineering, construction, coating, etc., can solve problems such as poor control and adjustment of stiffness, easy rust on the surface of components, complex and unreasonable steps, etc., to achieve viscosity Moderate, not easy to fall off, good film-forming effect

Active Publication Date: 2019-11-05
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The stiffness of the existing pile top structure cannot be well controlled and adjusted. After construction, it is necessary to pour concrete twice to adjust the stiffness, thereby increasing the construction cost and reducing the construction efficiency. The surface of the internal components is prone to rust and is Corrosion has greatly affected its service life. At the same time, the existing construction method of the pile top structure has complicated and unreasonable steps and great potential safety hazards, which not only affects the construction efficiency, but also affects the construction quality. Rigidity controllable pile top structure and its construction method of secondary pouring

Method used

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  • A kind of rigidity controllable pile top structure without secondary pouring and its construction method
  • A kind of rigidity controllable pile top structure without secondary pouring and its construction method
  • A kind of rigidity controllable pile top structure without secondary pouring and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0059] A rigidity-controllable pile top structure without secondary pouring, such as Figure 1-7 As shown in and 9, it includes a raft 1 and a cylindrical pile body 3 fixedly installed on the pile foundation. The bottom of the raft 1 is provided with a mounting groove 12, and the inside of the mounting groove 12 is fixedly installed with a cylindrical cylinder. 4. The upper end of the cylindrical cylinder 4 is a closed structure, and the bottom end of the cylindrical cylinder 4 is an open structure, and the upper end of the cylindrical pile 3 is movably installed on the cylindrical cylinder 4 Inside the bottom end, and the inside of the upper end of the cylindrical pile body 3 is provided with a number of mounting holes 13, and three sets of rigidity are evenly arranged between the inner top wall of the cylindrical cylinder body 4 and the upper end of the cylindrical pile body 3 Regulator 5.

[0060] The position of the cylindrical cylinder body 4 relative to the cylindrical ...

Embodiment 2

[0082] The difference from Example 1 is that the surface of the cylindrical steel plate 18 and the surface of the support column 19 are also provided with a protective layer, and the protective layer is prepared by the following method:

[0083] Take the following raw materials and weigh them by weight: 18 parts of epoxy resin, 6 parts of titanium dioxide powder, 12 parts of phenolic resin, 18 parts of polyurethane, 10 parts of graphite powder, 11 parts of trilead tetraoxide powder, 10 parts of zinc oxide powder, film-forming 2 parts of auxiliary agent, 2 parts of accelerator, 1 part of defoamer, 3 parts of leveling agent, 1 part of anti-sedimentation agent and 30 parts of ethanol;

[0084] S1. Add the weighed film-forming aid, accelerator, defoamer, leveling agent, anti-sedimentation agent and ethanol into the mixer and stir for 25min at a stirring speed of 500r / min to prepare a mixed solution;

[0085] S2, adding epoxy resin, calcium carbonate powder, phenolic resin, polyure...

Embodiment 3

[0095] The difference with embodiment 2 is the preparation of protective layer, and its specific preparation method is as follows:

[0096] Take the following raw materials and weigh them by weight: 22 parts of epoxy resin, 8 parts of titanium dioxide powder, 14 parts of phenolic resin, 21 parts of polyurethane, 11 parts of graphite powder, 12 parts of trilead tetraoxide powder, 11 parts of zinc oxide powder, film-forming 3 parts of auxiliary agent, 3 parts of accelerator, 2 parts of defoamer, 4 parts of leveling agent, 2 parts of anti-settling agent and 40 parts of ethanol;

[0097] S1. Add the weighed film-forming aid, accelerator, defoamer, leveling agent, anti-sedimentation agent and ethanol into the mixer and stir for 28min at a stirring speed of 600r / min to prepare a mixed solution;

[0098] S2, adding epoxy resin, calcium carbonate powder, phenolic resin, polyurethane, graphite powder, trilead tetraoxide powder and zinc oxide powder into a pulverizer for pulverization t...

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Abstract

The invention discloses a rigidity controllable pile top construction structure without secondary pouring, which comprises a raft and a cylindrical pile body fixedly installed on the pile foundation, the bottom of the raft is provided with an installation groove, and the installation A cylindrical cylinder body is fixedly installed inside the groove, the upper end of the cylindrical cylinder body is a closed structure, and the bottom end of the cylindrical cylinder body is an open structure, and the upper end of the cylindrical pile body is movably installed on the Inside the bottom end of the cylindrical cylinder body, and the upper end of the cylindrical pile body is provided with a number of installation holes, and three sets of holes are evenly arranged between the inner top wall of the cylindrical cylinder body and the upper end of the cylindrical pile body. Stiffness adjuster. The present invention realizes the controllable adjustment of the stiffness of the pile top structure, which can avoid secondary pouring of concrete to fix the height of the stiffness adjuster, thereby reducing the construction cost, accelerating the construction efficiency, and improving the construction quality. The construction method proposed by the present invention is safe It is feasible and the steps are simple and reasonable.

Description

technical field [0001] The invention relates to the technical field of pile raft foundation construction, and more specifically relates to a rigidity-controllable pile top structure without secondary pouring. Background technique [0002] With the rapid development of high-rise buildings, the foundation forms that determine the overall stability and safety of high-rise buildings have become larger and more complex, and higher requirements have been put forward for piled raft foundations as the main foundation form. The piled raft foundation of high-rise buildings plays an important role in project construction, and it accounts for an increasing proportion of the total project cost and total construction period. The safety and effectiveness of high-rise building piled raft foundations in the early design, optimization, later construction, and use become increasingly prominent and attract the attention of all parties. The main objects of early design and optimization of the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/14C09D163/00C09D161/06C09D175/04C09D7/61
CPCC08K2003/2241C08L2205/03C09D7/61C09D163/00C09D175/04E02D27/14E02D2300/0006E02D2300/0029E02D2300/0045E02D2600/20C08L61/06C08L75/04C08K13/02C08K3/22C08K3/04
Inventor 周峰郭佳迅方宁蒋屹洲
Owner NANJING TECH UNIV