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结合宁启线提速改造过程中桥涵施工两处工点土压力的监测数据,对支墩土压力的分布特征进行了研究。通过分析振弦式土压力计采集到的土压力数据,发现了支墩不同深度、不同位置处土压力非线性分布的一些规律,并对土压力监测时传感器埋设的最佳位置给出了建议。土压力监测作为既有线桥涵施工防护的重要内容,可以为施工过程中保障列车安全行驶和施工顺利进行提供重要的依据和指导,论文研究成果可为类似工程提供借鉴和参考。
Based on the monitoring data of earth pressure at two construction sites of bridges and culverts during the reconstruction of Ningqi line, the distribution characteristics of earth pressures on the abutment are studied. By analyzing the earth pressure data collected by the vibrating wire earth pressure gauge, some laws of non-linear distribution of soil pressure at different depths and locations of the pier are found out, and the optimal location of the buried sensor is given when the earth pressure is monitored . As an important content of construction protection of existing bridges and culverts, earth pressure monitoring can provide important basis and guidance for safe running and smooth construction of the train during construction. The research results of the dissertation can provide reference and reference for similar projects.