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Anchor rod static pressure pile pre-stressed force sealing pile structure and construction method thereof

An anchor bolt static pressure pile, pre-stressing technology, applied in the direction of foundation structure engineering, sheet pile wall, construction, etc., can solve the problems of low utilization rate of pile pressing equipment, uneven settlement of foundation, shortening construction period, etc., to avoid The effect of uneven settlement, improving the turnover rate and ensuring the reinforcement effect

Pending Publication Date: 2021-12-24
央固工程科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of long working hours, low utilization rate of pile pressing equipment, and uneven settlement of the foundation in the prior art building sealing pile structure, and provide a method that greatly shortens the construction period of piles and maximizes the utilization of pile sealing equipment. Anchor static pressure pile pre-stressed pile sealing structure with high efficiency, which can reliably avoid pile springing and uneven foundation settlement and its construction method

Method used

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  • Anchor rod static pressure pile pre-stressed force sealing pile structure and construction method thereof
  • Anchor rod static pressure pile pre-stressed force sealing pile structure and construction method thereof

Examples

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Effect test

Embodiment 1

[0028] Embodiment 1: A kind of bolt static pressure pile prestressed pile sealing structure, such as figure 1 As shown, in the middle of the original foundation beam 1, there is preset a truss-shaped pressure pile hole 2 with the small end facing upwards, and the distance between the upper end of the pile hole 2 is a 1 is 250mm, the distance between the bottom edge of the pile hole a 2 is 300mm, and the two sides of the original foundation beam 1 are widened to form a new foundation beam 3, and the height of the pile hole 2 is the height b of the new foundation beam 3 1 is 500mm, add the total width b of foundation beam 3 2 The pile 4 made of steel pipe is pressed into the foundation through the pile hole 2. The diameter of the pile 4 is φ159mm. A small section of the top of the pile 4 is exposed above the newly added foundation beam 3. The exposed part of the pile 4 has a length of b 3 200mm, on the outer side of this small section of pile, there are several reinforced stee...

Embodiment 2

[0033] Embodiment 2: according to the construction method of a kind of bolt static pressure pile pre-stressed pile sealing structure described in the above claims, the steps are:

[0034] 1) A newly added foundation beam 3 is formed by widening both sides of the original foundation beam 1, and anchor rods 6 are embedded symmetrically in the newly added foundation beam 3, and the newly added foundation beam 3 is superimposed and connected to the original foundation cushion 9 above;

[0035] 2), using the pile-pressing mechanical equipment to press the pile 4 through the prism-shaped pile-pressing hole 2 of the original foundation beam 1;

[0036] 3), the pressure pile 4 reaches the preset depth and continues to apply the holding pressure;

[0037] 4), remove the soil in the pile pressure hole 2 and the surrounding pile cap beam area, and clean the muddy water in the pressure pile hole wall and the pile pressure hole;

[0038] 5), one end of the prefabricated reinforced steel ...

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Abstract

The invention discloses an anchor rod static pressure pile pre-stressed force sealing pile structure. The anchor rod static pressure pile pre-stressed force sealing pile structure is characterized in that a frustum-shaped pile pressing hole with an upward small end is preset in the middle of an original foundation beam, the two sides of the original foundation beam are widened to form a newly-added foundation beam, the newly-added foundation beam is connected to a foundation cushion layer in an overlapped mode, a pile formed by a steel pipe is pressed into a foundation through the pile pressing hole, a small section of the top of the pile is exposed on the newly-added foundation beam, a plurality of reinforcing steel plates arranged in the axial direction are welded to the outer side edge of the small section of the pile in the radial direction according to a certain rule, the side edge of the other end of each reinforcing steel plate is welded to an anchor rod embedded in the newly-added foundation beam in the axial direction, and an anchor hook is arranged at the bottom end of each anchor rod; the pile top is connected with a bidirectional anti-crack reinforcing mesh which is welded with the top end of the anchor rod; and grouting materials are poured and tamped between the pile pressing holes and the piles. According to the anchor rod static pressure pile pre-stressed force sealing pile structure and a construction method thereof, the pile construction period is greatly shortened, the utilization rate of pile sealing equipment is high, pile bouncing can be reliably avoided, and differential settlement of the foundation can be avoided.

Description

technical field [0001] The invention relates to the technical field of building structure reinforcement, in particular to the pile construction technology of building foundations. Background technique [0002] During the construction process of the piles of the building foundation being pressed into the foundation, due to the effect of extrusion energy on the foundation, some of the energy is finally converted into heat energy and dissipated, but a part of the extrusion energy will always be transformed into the local deformation elasticity of the foundation layer. Yes, when the pile-pressing mechanical equipment is removed, the ground will release accumulated elastic energy, which will often cause the pile to rebound upwards, causing the entire pile to be suspended unstable, which will cause potential safety hazards in the building. In order to eliminate this hidden danger, During the pile pressing construction process, it is necessary to take corresponding countermeasures....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/20E02D5/58E02D5/74
CPCE02D7/20E02D5/58E02D5/74E02D2600/30
Inventor 黄坤耀陈磊叶伟平肖周保张亮
Owner 央固工程科技(上海)有限公司
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