Pile foundation lining material and construction method of prefabricating prestressed pipe pile using pile foundation lining material

A technology of prestressed pipe piles and construction methods, which is applied in the direction of foundation structure engineering, sheet pile walls, buildings, etc., to achieve the effects of reducing production costs, solving environmental pollution, and having obvious environmental protection effects

Inactive Publication Date: 2018-04-27
中冶沈勘工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is no design and construction of using auger drill

Method used

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  • Pile foundation lining material and construction method of prefabricating prestressed pipe pile using pile foundation lining material
  • Pile foundation lining material and construction method of prefabricating prestressed pipe pile using pile foundation lining material
  • Pile foundation lining material and construction method of prefabricating prestressed pipe pile using pile foundation lining material

Examples

Experimental program
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Effect test

Example Embodiment

[0085] Example 1

[0086] A pile foundation lining material includes components and their weight ratios as follows: iron tailings: cement: fly ash: water=4:1:0.15:1.2.

[0087] The construction method of prefabricated prestressed pipe piles using the pile foundation lining material includes the following steps:

[0088] Step 1, pile hole construction:

[0089] Use an auger to drill the pile hole at the corresponding position, the diameter D and depth of the pile hole are determined according to the design requirements, and the depth of the hole bottom reaches the design pile end bearing layer;

[0090] Step 2. Prepare pile foundation lining material:

[0091] Taken separately according to the ratio, iron tailings: cement: fly ash: water = 4:1:0.15:1.2; stir after mixing to form composite iron tailings mortar, which is used as pile foundation lining material, among which iron tailings is The iron tailings that have passed the radiation inspection are fine tailing silt sand, middle tailin...

Example Embodiment

[0096] Example 2

[0097] A pile foundation lining material includes components and their weight ratios as follows: iron tailings: cement: fly ash: water: retarder=4:1.2:0.15:1.2:0.002.

[0098] The construction method of prefabricated prestressed pipe piles using the pile foundation lining material includes the following steps:

[0099] Step 1, pile hole construction:

[0100] Use an auger to drill the pile hole at the corresponding position, the diameter D and depth of the pile hole are determined according to the design requirements, and the depth of the hole bottom reaches the design pile end bearing layer;

[0101] Step 2. Prepare pile foundation lining material:

[0102] According to the proportion, take separately, iron tailings: cement: fly ash: water: retarder, early strength agent or antifreeze = 4:1.2:0.15:1.2:0.002; stir after mixing to form composite iron tailing mortar , As the pile foundation lining material, among them, the iron tailings are the iron tailings that have p...

Example Embodiment

[0107] Example 3

[0108] A pile foundation lining material includes components and their weight ratios: iron tailings: cement: fly ash: water: early strength agent = 5:1:0.15:1.4:0.015.

[0109] The construction method of prefabricated prestressed pipe piles using the pile foundation lining material includes the following steps:

[0110] Step 1, pile hole construction:

[0111] Use an auger to drill the pile hole at the corresponding position, the diameter D and depth of the pile hole are determined according to the design requirements, and the depth of the hole bottom reaches the design pile end bearing layer;

[0112] Step 2. Prepare pile foundation lining material:

[0113] Taken separately according to the ratio, iron tailings: cement: fly ash: water: early strength agent = 5:1:0.15:1.4:0.015; after mixing, stir to form composite iron tailings mortar, which is used as the pile foundation lining material. Among them, the iron tailings are iron tailings that have passed radiation ins...

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Abstract

Provided are a pile foundation lining material and a construction method of prefabricating a prestressed pipe pile using the pile foundation lining material. The pile foundation lining material comprises, by weight, 4-5% of iron tailings, 1-1.2% of cement, 0.15% of fly ash, and 1.2-1.4% of water. The construction method includes the following steps that after drilling, according to the proportion,raw materials are taken and mixed, the pile foundation lining material is obtained and injected into a jackrod of a drilling machine; perfusion is performed to reach a perfusion level, a prefabricated prestressed pipe pile is pressed to a design depth, and simultaneously the pile foundation lining material is compacted, so that the pile foundation lining material is tightly combined with the prestressed pipe pile; the liquid level of the pile foundation lining material is upraised to the top of the pile by 0.5-1.0 m; and the pile foundation lining material is maintained to a design strength to form a solidified body, and the construction process of prefabrication of the prestressed pipe pile using the pile foundation lining material is completed. The pile foundation lining material is environmentally friendly, pile foundation concrete is saved, and the construction method of prefabricating the prestressed pipe pile using the pile foundation lining material solves the problems of the bearing capacity of the pile foundation, the load transmission between the pile and the ground, the combination of the pile and an upper structure and so on; and at the same time, the production cost is greatly reduced, the production efficiency is increased, and the application range is wide.

Description

Technical field: [0001] The invention belongs to the technical field of industrial waste residue utilization and building foundations, and in particular relates to a pile foundation lining material and a construction method for prefabricated prestressed pipe piles using the pile foundation lining material. Background technique: [0002] The existing prestressed pipe pile construction technology generally adopts two methods, the driving method or the static pressure method. For the hard stratum driving method or the static pressure method, both methods have the difficulty of penetrating the hard stratum and making the pile point be located on a suitable pile end bearing layer; and because in the construction of the existing prestressed pipe pile, In order to meet the requirements of penetration into the ground during pile construction, the concrete of the pile body and the reinforcement of the pile are specially designed to strengthen, which causes waste of materials to a cer...

Claims

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Application Information

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IPC IPC(8): E02D5/52E02D5/50E02D5/48E02D5/58C04B28/02C04B111/56
CPCC04B28/02C04B2111/00017C04B2111/56C04B2201/50E02D5/48E02D5/523E02D5/58E02D2250/003E02D2300/002C04B18/08C04B18/12
Inventor 徐立军侯彤岩李建军张国杰刘绍文张德志孙璐
Owner 中冶沈勘工程技术有限公司
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