摘要
由于鑫海码头前沿区域水流冲刷严重,水下泥面高程已低于竣工时的状况,需对码头结构安全及岸坡稳定进行重新评估。通过对水下岸坡的地形监测,得到桩基的冲刷深度。根据相关规范要求,对码头上部结构承载力、桩基承载力、岸坡稳定等指标进行复核验算。结果显示结构安全性各项指标符合规范要求,但桩身拉应力已接近极限值,如冲刷深度进一步加深,将对码头的结构安全产生威胁。综合考虑后,采用联锁块软体排+抛石的方案来保护岸坡。
Due to the serious scouring of water flow in the front area of Xinhai Wharf,the underwater mud surface elevation has been lower than the condition at the time of completion.Thus,it is necessary to reassess the structural safety of the wharf and the stability of the bank slope.The scour depth of the pile foundation is obtained by monitoring the topography of the underwater bank slope.According to the requirements of relevant specifications,the bearing capacity of the upper structure of the wharf,the bearing capacity of the pile foundation and the stability of the bank slope shall be rechecked and calculated.The results show that all indicators of structural safety meet the requirements of the specifications.However,the tensile stress of the pile body is close to the limit value.If the scour depth further increases,it will threaten the structural safety of the wharf.After comprehensive consideration,the scheme of the soft mattress of interlocking blocks and riprap is adopted to protect the bank slope.
作者
谢华伟
于传见
杨斌
XIE Hua-wei;YU Chuan-jian;YANG Bin(School of Water Conservancy&Environment Engineering,Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,China;CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China;Key Laboratory for Technology in Rural Water Management of Zhejiang Province,Hangzhou 310018,China)
出处
《水运工程》
北大核心
2022年第6期67-72,共6页
Port & Waterway Engineering
基金
浙江省高校国内访问学者“教师专业发展项目”(FX2018075)
浙江省水利厅科技项目(RC2005)。
关键词
冲刷
码头结构
桩基承载力
安全复核
scouring
wharf structure
bearing capacity of pile foundation
safety recheck
