For the line fasteners of concrete under-rail components, it is necessary to solve the problem that the connection between the spike and the concrete and the rigidity of the concrete material are large and the insulation performance is poor. China commonly used gusset-type rigid fasteners and elastic-type elastic fasteners. Between the bottom of the rail and the lower part of the concrete rail, there is a layer of elastic cushion to improve the elasticity of Molɔngɔ́ oyo ezali na ngámbo oyo etɛlɛmi; Lisanga ya spike mpe eteni ya nse ya rail ya béton esalemi na bokangami ya soufre [1].
Rail buckles are edited, and the joints of the rails and under-rail components are spliced with splicing fittings, spring bars and hooks. According to the material properties, it is divided into two types: rigid and elastic. The rail fastener has a rigid fastener with a rigid buckle and a spring fastener with a spring fastener. The elastic buckle can store the strain energy by means of Pre-déformation, na yango ko ajuster état ya fluctuation ya pression ya boucle. Ba fixations rigide ezali te, yango wana performance anti-climbing ya ba fixations élastiques eleki oyo ya ba fixations rigide.
