ballast bed

Construction Method for Lower Part Work of Ballast Bed in Overhaul of OCS

石质路基区段接触网下部工程大修的施工方法

Study on adjusting track irregularity of integrated ballast bed in urban elevated railway

高架铁路整体道床轨面不平顺调整的研究

The Low Cost Wide-Sleeper Ballast Bed Track with Damping Rubber Bits

廉价减振型宽枕碎橡胶道床轨道

To fill ( a railroad bed ) with or as if with ballast.

铺沙石用或似用沙石铺 ( 铁路路基 )

Test Analysis on the Quality State Parameter of Newly-Built Railway Ballast Bed

新建铁路道床质量状态参数试验分析

Construction Precision Control of Chord Surveying Method for Ballastless Track Ballast Bed

无碴轨道道床竖曲线弦测法施工精度控制

To design thickness of ballast bed is based on the required strength of track structure and partly the experience in national railway.

现行的地铁设计规范对道床厚度的选择仅根据轨道强度要求和国铁的经验确定。

Some microstructural parameters which strongly affect the mechanical behaviour of ballast bed are described.

钢轨、轨下垫层、道床的状态对客车的运行具有很大的影响,也是最主要的三个因素.

Construction technique for ballast bed on high speed railway

高速铁路有碴道床施工工艺的探讨

The finite element model, which is composed of JM worn type of locomotive wheel, standard 60 kg/ m rail, rail fastening, rubber tie plate and ballast bed, well simulates actual wheel-rail contact state.

建立的机车JM型磨耗型踏面、60kg/m钢轨、扣件、橡胶垫板和道床等有限元模型更加真实地模拟了轮轨接触状态。