Foundation pile high strain stress sensor installation pad and installation method thereof

Abstract

The invention provides a foundation pile high strain stress sensor installation pad and an installation method thereof. The foundation pile high strain stress sensor installation pad comprises a first steel pad, a second steel pad, guide steel pipes and a fixing iron sheet; the first steel pad and the second steel pad are connected through the guide steel pipes to enable the first steel pad and the second steel pad to be located at the same plane, and the first steel pad is connected with the second steel pad through the fixing iron sheet and fastened on the side face of a pile body through expansion screws; the fixing iron sheet is loosened and removed, and the guide steel pipes which connect the first steel pad with the second steel pad are removed; a stress sensor is installed at the fixing iron sheet. The foundation pile high strain stress sensor installation pad and the installation method thereof have the advantages that the stress sensor can be installed conveniently to enable the installation effect to reach the detection requirements, the stress sensor can be prevented from being damaged, and the pile body deformation amount can be accurately tested.

Description

technical field [0001] The invention relates to a foundation pile high-strain stress sensor installation mat and an installation method thereof, which are used for the installation test of the foundation pile high-strain on-site detection stress sensor. Background technique [0002] At present, the stress sensor is directly installed on the surface of the side of the foundation pile when detecting the high strain of the foundation pile. That is, use an electric drill to drill holes on the surface of the foundation pile, and then use expansion screws to fix the stress sensor on the surface of the pile body. In order to measure the deformation of the pile material, the stress sensor ring is required to be tightly attached to the side of the pile. However, the stress sensor is a high-precision electronic component. If the screw pressure is too large during the installation process, or the installation screw pressure is not perpendicular to the sensor mounting surface, etc. Al...

AI Technical Summary

Problems solved by technology

However, the stress sensor is a high-precision electronic component. If the screw pressure is too large during the installation process, or the installation screw pressure is not perpendicular to the sensor mounting surface, etc.

Will cause the sensor to be damaged and the signal cannot be collected

Reasons for this phenomenon: 1. The surface of the concrete pile body on site is often uneven, and it cannot be completely flat even after grinding

2. The concrete aggregate of the pile body is large or small, and the drilling hole will not be vertical when the pile body is drilled.

3. There is a deviation in the positioning of the drilling hole, which makes the stress sensor under tension or compression during installation

This brings greater economic losses to the testing unit and affects the quality of testing work

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