System for testing quality of cast in place concrete pile

Abstract

A quality detection system of concrete pile comprises ultrasonic wave emitting device, data processing unit, ultrasonic wave receiving device, data collector and depth counting coder, The ultrasonic wave receiving device is composed of receiving transverter formed by multiple ultrasonic wave transverters; the data collector is composed of I / O interface circuit, synchronous circuit, amplification - attenuation circuit and multichannel A / D collection plate; the depth counting coder is used to control position of transverter in guide tube for ensuring measurement accuracy.

Description

Technical field

[0001] The invention belongs to an ultrasonic detection instrument, and particularly relates to an ultrasonic detection system for detecting the pouring quality of concrete cast-in-place piles. Background technique

[0002] At present, the cross-hole ultrasonic CT detector for concrete cast-in-place piles (or speed CT detector) adopts a single-shot and single-receive working mode, that is, ultrasonic waves are emitted from a fixed point in one hole, and point by point at a certain interval within a certain depth of another hole Receive ultrasound, measure the first arrival time of the wave, and obtain the velocity reconstruction image of the cross-hole section through the dedicated CT software (called velocity CT), so as to understand whether there are such things as mud, broken pile, neck expansion, necking, etc. Defects such as voids and segregation. The current speed CT inspection instrument used in the quality inspection of concrete cast-in-place piles mainly ...

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