Analysis of Wharf Strengthening Due to Dredging

Abstract

This study investigates the structural implications of dredging activities on steel piles and associated railway infrastructure. Specifically, the dredging process, which extended to a depth of 12 meters, effectively reduced the embedded length of the existing steel piles to 8 meters, thereby compromising their load-bearing capacity. Structural modeling and analysis revealed that the reduced pile embedment may lead to insufficient support under operational loads, raising concerns about potential failure and non-compliance with safety standards. As a result, reinforcement measures were implemented, including strengthening the pile heads and installing additional steel piles around the existing foundation. The analysis also assessed the structural performance of key railway components, particularly beams LB1 and LB2, which were found to adequately support the operational QCC load. However, further investigation is recommended for other structural elements to ensure overall system integrity. To maintain safety and performance standards, the study highlights the necessity of re-verifying soil properties post-dredging, performing supplementary structural analyses where required, and strictly adhering to safe operational protocols during railway use. Additionally, a thorough review of beam and plate design specifications is advised to confirm compliance with current structural codes. These findings underscore the importance of integrating geotechnical and structural evaluations in infrastructure projects involving dredging to mitigate safety risks and support sustainable infrastructure management.