基于GIS空间分析的抛石护岸工程水下抛石效果评价

抛石护岸工程水下抛石效果评价是工程水下质量控制的重点和难点。准确掌握和分析工程水下质量状况,对确保抛石护岸的施工质量起到了重要作用。GIS(地理信息系统)技术拥有强大的空间数据处理与分析能力,可用于对水下抛石效果进行多维度的定性与定量分析。分析结果可以准确评价施工质量、精准指导下一阶段施工、降低施工成本。通过对3个试验区的分析,总结出一般施工规律:1)由于工程区上游起始处以及下游深水侧容易产生冲刷,抛石效果较差。2)工程区中部及近岸区抛石效果较好,但容易过抛。

Evaluation of underwater ripple effect for riprap revetment project based on GIS spatial analysis

The evaluation of the underwater riprap effect for the riprap revetment project is the key and difficult point of the underwater quality control of the project.Accurately grasping and analyzing the underwater quality status of the project has played an important role in ensuring the construction quality of the riprap revetment project.GIS(geographic information system)technology has powerful spatial data processing and analysis capabilities,which can be used for multi-dimensional qualitative and quantitative analysis of the underwater riprap effect.The analysis results can accurately evaluate the construction quality and guide the next stage of construction,and reduce construction costs.By the analysis of the three test areas,we summarize the general construction rules:1)The upstream start in the project area and the deep water side of the downstream are prone to scour,and the riprap effect is poor.2)The riprap effect of the middle in the project area and the near-shore area is better,but these areas are also prone to excessive construction.