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Load box gap reinforcing device after self-balancing detection and reinforcing method thereof

A technology of reinforcing device and load box, which is applied in the direction of basic structure test, construction, basic structure engineering, etc., to achieve the effect of improving the success rate, strong affinity and ensuring the consolidation strength

Pending Publication Date: 2019-06-21
NANCHANG YONGQI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the deficiencies in the prior art, and aims to provide a gap reinforcement device and reinforcement method after the self-balancing test of the load box, which can effectively solve the problem of broken piles after the self-balancing static load test of the foundation pile, and make the pile body of the pile foundation The overall strength is fully reinforced

Method used

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  • Load box gap reinforcing device after self-balancing detection and reinforcing method thereof
  • Load box gap reinforcing device after self-balancing detection and reinforcing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment is a gap reinforcement device after a self-balancing test of a load box. The gap reinforcement device after a self-balance test of a load box includes a load box device, a steel cage device, an upper displacement tube 1, a lower displacement tube 2 and a grouting annular circuit tube 3;

[0026] The load box device includes a grouting load box 4, a grouting check valve 5 and a hydraulic pipe 6;

[0027] The grouting annular circuit pipe 3 is fixed on the center of the upper plate of the grouting load box by indirect welding, the centerline of the grouting annular circuit pipe 3 is coaxial with the center of the grouting load box 4, and the diameter is the same as that of the grouting load box 4 The middle hole is the same, the two ends of the grouting annular circuit pipe 3 are respectively connected with the lower displacement pipes 2 arranged symmetrically on both sides of the grouting load box 4 to form an annular passage, and the grouting check valve ...

Embodiment 2

[0035] This embodiment is a grouting reinforcement method in a cylinder of a grouting load box. After the foundation pile self-balancing static load test is completed, the uniformly stirred grout is output through the grouting equipment, enters the grouting pipe, and is directly injected through the grouting check valve 5 In the grouting load box 4, and through the grouting injection pipe of the grouting load box 5, the grout is discharged, and the grout reaches the concentration of the grout return pipe, and then closes the liquid inlet pipe. Stop grouting after pressing for a certain period of time.

[0036] The grouting load box in the cylinder adopts a double liquid circuit structure: the grout return pipe and the grouting pipe. The grouting pipe is connected and sealed with the grouting load box 4 through the grouting check valve 5, and the grouting load box 4 is threaded with the grouting equipment. The connection is sealed. When grouting in the cylinder, the grouting eq...

Embodiment 3

[0038] This embodiment is a grouting reinforcement method outside the cylinder of the grouting load box. After the self-balancing static load test of the foundation pile is completed, the evenly stirred grout enters the lower displacement pipe 2 on one side of the grouting pipe through the output port, and the grout moves along the vertical direction at the same time. The pipeline flow of the grouting pipeline and the grouting annular loop pipe 3 on the side, due to the vertical grouting outside the cylinder, the grouting range is large and the area is widely dispersed. The grouting resistance of the grouting pipeline is getting bigger and bigger, until the coverage radius of grouting is reached, the grouting will stop injecting in this direction, and the grouting will be concentrated in the pipeline direction of the grouting annular loop pipe 3 on the side, and the grouting will continue until the return On the other side of the grout pipe, the lower displacement pipe 2 emits ...

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Abstract

The invention relates to a load box gap reinforcing device after self-balancing detection and a reinforcing method thereof, and belongs to the technical field of building foundation piles. The load box gap reinforcing device after self-balancing detection comprises a load box device, an upper displacement pipe, lower displacement pipes and a grouting annular loop pipe. The load box device comprises a grouting load box, a grouting one-way valve and a hydraulic pipe; the grouting annular loop pipe is fixed to the center of an upper plate of the grouting load box through indirect welding. The center line of the grouting annular loop pipe is coaxial with the center of the grouting load box, the diameter of the grouting annular loop pipe is the same as that of a middle hole of the grouting loadbox, two ends of the grouting annular loop pipe are connected with lower displacement pipes symmetrically arranged on two sides of the grouting load box respectively to form an annular channel, and the grouting one-way valve and the hydraulic pipe are symmetrically installed on two sides of the grouting annular loop pipe respectively.

Description

technical field [0001] The invention relates to a gap reinforcement device and a reinforcement method after self-balance detection of a load box, and belongs to the technical field of building foundation piles. Background technique [0002] At present, after the foundation pile self-balancing static load test, grouting is used to fill the gap between the load box opening after the foundation pile inspection. The effect is not ideal. In engineering applications, it is still impossible to effectively grout the inside and outside of the load box cylinder at the same time. , in order to increase the effective cross-sectional area of ​​the pile foundation, enhance the strength of the pile foundation, and achieve the effect of strengthening the foundation pile. Contents of the invention [0003] The present invention aims at the deficiencies in the prior art, and aims to provide a gap reinforcement device and reinforcement method after the self-balancing test of the load box, wh...

Claims

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Application Information

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IPC IPC(8): E02D33/00E02D15/02
CPCE02D15/02E02D33/00
Inventor 钱勇魏建智钟称发肖力萍易教良
Owner NANCHANG YONGQI TECH DEV
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