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Provincial Highway 104 Reconstruction Project – Ya’an, Sichuan
Release time:
2025-09-29 10:48
Project Overview
Project Name: Sichuan Ya’an Provincial Highway 104 Reconstruction Project
Project Type: Road and Bridge Construction
Location: Ya’an City, Sichuan Province, China
Testing Equipment: RSM-SY8(C) Ultrasonic Pile CT Imaging Tester
Testing Purpose & Method
The testing was conducted for construction self-inspection and quality acceptance of foundation piles supporting both roadway and bridge structures. The ultrasonic cross-hole CT imaging method was applied to assess pile shaft continuity, detect internal anomalies, and evaluate overall pile integrity.
Testing Scope
Integrity testing of roadway and bridge foundation piles
Identification of internal pile defects and bottom sediment accumulation
Testing Results
Defects Observed:
Minor anomalies detected in the middle sections of some piles, likely caused by the use of self-compacting concrete without sufficient vibration, leading to trapped air voids.
Sediment-related defects at some pile toes, attributed to delayed cleaning of boreholes after drilling and scouring effects from groundwater.
Impact: Although localized defects were identified, the overall integrity of the piles remained within acceptable engineering standards.
Evaluation
Engineering Evaluation: The majority of piles were found to be sound, with only isolated cases of notable defects. The foundation quality was assessed as generally reliable.
Equipment Performance: The RSM-SY8(C) performed with stability and accuracy, providing clear imaging and dependable defect identification.
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