论文部分内容阅读
本文介绍小半径曲线破底清筛作业情况,目的是为今后更合理地选择小半径曲线无缝线路设计的锁定温度。进行清筛作业的这段曲线,由于焊接长轨铺设之前,没有进行过彻底整修,纵、平面也未全面校正,加之铺设数年来,先后发生过两次水害,冲毁路堤和使边坡坍塌,致使长轨截断,拨成R=180米曲线维持通车。后来,虽然线路恢复了正常运营,但线路的平面状态,始终未能回复原位。另外,部分道床由于整治边坡病害而板结,造成线路弹性很差,雨季翻浆冒泥等病害。捣固质量不易保持,养护维修工作量
This paper introduces the work of cleaning the bottom of a small radius curve, and aims to select the locking temperature for the design of the CWR with a small radius in the future. This curve of cleaning operation has not been completely renovated before the laying of long-haul welded rails. The vertical and horizontal planes have not been fully calibrated. In addition, there have been two floods that have taken place in the past several years and have destroyed the embankment and collapsed the slope , Resulting in long-term truncation, dial into R = 180 meters curve to maintain the opening. Later, although the line was back to normal operation, the flat state of the line never failed to return to its original position. In addition, part of the ballast bed due to remediation of slope disease and compaction, resulting in poor flexibility of the line, the rainy season mud and other diseases. Tamping quality is not easy to maintain, maintenance workload