double track tunnel

Research conclusions: With the trains being-speed up, the transient pressure of double-track tunnel in the existing railway can not reach the standard of comfort.

研究结论：提速后，我国既有线上一些双线隧道的瞬变压力不能满足旅客乘车的“舒适度”标准。

Using the continuous elastic double layers beam model of track structure, the forces between the sleepers and the tunnel inlay produced by the running of certain subway train were calculated.

采用施加在轨道上的一系列移动轴荷载模拟列车作用，利用轨道结构连续弹性双层梁模型，计算出某城市地铁列车运行产生的轨枕与隧道之间的作用力。

A description is given to method and technology adopted against track deviation during construction of elastic monolithic track bed in long double line tunnel.

针对长大铁路双线隧道轨道结构施工中发生的弹性整体道床轨道偏移问题，阐述了纠偏的方法和施工工艺，为以后同类工程提供借鉴。