It is rather difficult to monitor the settlement of high-speed railway bridge piers in water by conventional level observation method. To solve the problem, this paper puts forward a new settlement monitoring method for bridge piers in water, taking the actual super major bridge's piers in water as the example. Also, through analyzing and researching the feasibility and various accuracy indexes, the paper points out that: by means of measuring the monitoring marks at the girder surface after girder erection, the new settlement monitoring method of bridge piers in water is practical and feasible for solving the problem of settlement monitoring of high-speed railway bridge piers in water, which has significant meanings for improving China's settlement monitoring system of high-speed railway bridge piers in water.%为了解决高速铁路桥梁水中墩按常规水准观测难以进行沉降监测的难题,结合某高速铁路一特大桥的水中墩的沉降监测实例,提出了一种斯的水中墩沉降监测方法,并对该监测方法的可行性和各种精度指标进行了分析研究,得出高速铁路桥梁水中墩在架梁完成后通过转测梁面监测标的沉降监测方法能够满足我国高速铁路相关规范的要求,是一种解决水中墩沉降监测难题的切实可行的方法,对完善我国高速铁路桥梁水中墩沉降监测体系具有重要意义.
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