Abstract: A deep trench was found in riverbed of the block No. 11 of Longkaikou dam. Combination of reinforced concrete plate and caving and replacement was adopted in treatment. The paper presented the design scheme for the load-bearing plate. Based on the practice, the paper analyzed the monitored displacement and stress. Then, comparison between the monitoring results and design data revealed some problems, worthy further attention.

摘要： 龙开口河床11号坝段坝基出现深槽，采用钢筋混凝土板洞挖全置换方案进行了处理。介绍了龙开口承载板监测设计方案，结合工程实际，重点对监测到的位移、应力等成果进行分析，并与结构计算结果进行了比较。该监测实施方案对今后类似地基处理工程具有参考意义。