大纵坡、高墩桥梁桥墩检测及纠偏方案

Pier Detection and Deviation Correction Scheme for Bridges with Large Longitudinal Slope or High Pier

随着中国高速公路里程的飞速发展,跨越深沟或特殊地形条件需要修建大量高墩、大纵坡桥梁,受温度、车辆荷载、施工及设计等因素影响,墩柱向升坡方向累计偏移,导致墩柱出现大量横向裂缝,其承载能力及行车安全无法保证。结合工程实际,通过现场检测及病害原因分析,给出对应的纠偏方案,多座桥梁纠偏方案的实施证明该成果成功,对其他类似工程有借鉴作用。

With the rapid development of expressway mileage in China,a large number of bridges with high pier or large longitudinal slope need to be built across deep ditches or special terrain conditions.Affected by temperature,vehicle load,construction and design and other factors,the pier column is offset to the direction of ascending grade,resulting in a large number of transverse cracks in the pier column,and its bearing capacity and driving safety cannot be guaranteed.In combination with the engineering practice,the corresponding deviation correction scheme is given through on-site detection and disease cause analysis.Through the implementation of deviation correction schemes of multiple bridges,the results show that the achievement is successful,and it can be used as a reference for other similar projects.