摘要
高速铁路建成运营后,受外部因素的影响,如在桥墩一侧施工、堆载等,会造成桥墩发生偏移,影响线路的平顺性,严重威胁高速铁路行车安全,需对其进行纠偏整治。本文以某城际高铁K19段高架桥桥墩的偏移整治工程为例,在整治期间,对线上监测点和轨道线形监测,根据监测结果指导施工,直至达到纠偏目标。监测结果表明了监测方案的有效性、正确性,能够对施工起到较好的指导作用,且能够为纠偏是否达到目标提供可靠的判断依据。可为类似高速铁路的纠偏整治及线上监测提供良好的参考。
After the completion of high- speed railway,the impact of external factors,such as the construction of the bridge pier,pile load,etc,will cause the bridge pier to offset,affect the ride of the line,a serious threat to the safety of high- speed railway,it is necessary to be corrective remediation. This paper,as an example of the viaduct pier offset regulation engineering of an inter- city high- speed K19 section,monitored the online monitoring points and track alignment during the rectification,according to the monitoring results to guide the construction,until it reaches the correct target. The monitoring results show that the monitoring method is effective and correct; it can be used to guide the construction,and can provide a reliable basis for the correction of the deviation. It can be provide a good reference for similar corrective remediation and monitoring of high- speed railway line.
出处
《测绘与空间地理信息》
2016年第6期187-189,192,共4页
Geomatics & Spatial Information Technology
关键词
桥墩偏移
纠偏整治
线上监测
指导施工
bridge pier deviation
correction and rectification
online monitoring
guide construction
