基于水槽试验及图像分析的透水框架护底检验标准研究

透水框架作为一种减速促淤的整治建筑物,近年来在航道整治工程逐步得到推广,在守护工程中应用最为广泛.长江航道规划设计研究院研发了一种新型透水框架——扭双工字型透水框架,并在南京以下12.5 m深水航道建设一期工程通州沙潜堤护底中进行了试验性应用.确定合理的透水框架护底检验标准,是保证防护效果的重要基础,而目前的航道整治工程质量检验标准,并未对此作出明确规定.通过水槽试验提出透水框架护底的检验标准,利用测扫声呐图像分析提出相应的检验方法,并进行了室内光学图像试验验证,符合较好.

Acceptance standard for permeable framework bottom protection based on flume tests and image analysis

As a deceleration and siltation remediation buildings,in recent years permeable framework has been gradually promoted in the waterway regulation engineering and mostly widely used in the guardian projects.A new type of permeable framework,i.e.twisted double H permeable framework was developed and it was tested in the bottom protection of Tongzhousha submerged breakwater in first phase deep channel construction,12.5 m below in Nanjing.The current waterway regulation engineering quality inspection standards does not make the specific provisions,which is the guarantee of the protective effect.By flume tests,this paper proposes the test standard of the permeable framework for the bottom protection.And on this basis,the appropriate test methods are proposed using the measured scan sonar image analysis.The indoor optical image test verified well.