Analysis of Automatic Monitoring Test of Static Leveling for Extra-Long Line of Offshore Long-Span Abutments
Based on the settlement of the foundation under the main abutment of Yangtze River bridge at Changtai section,an idea of applying static leveling to the settlement observation served as a solution to the high difficulties in observing the settlement of offshore long-span abutments,time-consuming and labor-intensive process as well as the low efficiency caused by the conventional measuring methods.The research showed that no static leveling monitoring had been adopted for a line in length of 1km or more.Therefore,the automatic monitoring test of static leveling should be carried out for the ultra-long lines by using the existing technology.By analyzing and summarizing a large amount of experimental data,it was found that the above technology could be used for observing the settlement of offshore long-span bridge abutments.In addition,the matters needing attention were summarized,including the technical parameters and references.The research results also assisted other similar projects with high difficulty in the settlement observation.
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