地质断层处高速铁路桥梁不均匀沉降控制研究

Study on Uneven Settlement Control of High-speed Railway Bridge in Geological Fault

通过对乌马河大桥处于地质断层处的(2)号墩、(3)号墩桩基础进行计算分析,得出该两桥墩基础存在沉降差,并提出成桥预压沉降、选用大调高量支座等控制沉降差的措施,对位于地质性状突变或地质变化剧烈的地基基础不均匀沉降控制具有一定参考价值.

Based on the calculation and analysis of the No.2 and No.3 Pile Foundation of Pier at the geological fault of the Uma River Bridge, it is concluded that there is a settlement difference between the two piers.The use of bridge preloading settlement, high adjustable support and other measures are proposed to control the settlement difference.The result has a certain reference value for the uneven settlement of the foundation based on the abrupt change of geological traits or the geological changes.