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主要研究轨枕间距对钢轨波磨发展的影响。研究小半径曲线内轨的小矢跨比波磨。这些出现问题的曲线段属于西班牙毕尔巴鄂区域的地铁轨道,铺设着混凝土道床和两层STEDEF型支承垫层。当初始轨枕间距为1000mm时,仅有92万组轮对通过后所测得的波磨深度峰-峰值已经达到0.42mm。随后更换产生波磨的钢轨,比较列车通过时轨枕上方和轨间中部的内轨垂向、横向加速度。当轨枕间距为1000mm时,轨间中部出现频率为204和244Hz的强烈响应,在轨枕上方却未出现。在相邻轨枕中间铺设一个轨枕,使轨枕间距变为500mm,钢轨波磨停止发展。该结论是根据2年的观测结果得到的。
Mainly studies the influence of sleeper spacing on the development of rail corrugation. Research on Small Radius Curves of Inner Rails of Small Inner Race. These curvilinear sections of the problem belong to the metro orbit of the Bilbao region of Spain, with concrete road beds and two STEDEF bearing mats. When the initial sleeper spacing was 1000 mm, only the peak-to-peak waviness depth, measured by the 920,000-wheel pair, had reached 0.42 mm. Subsequently, the corrugated rail was replaced and the vertical and lateral acceleration of the inner rail above the sleeper and the middle of the track were compared. When the sleeper spacing is 1000 mm, there is a strong response of 204 and 244 Hz in the middle of the track, which does not appear above the sleeper. Lay a sleeper in the middle of the adjacent sleepers, so that the distance between sleepers becomes 500mm, corrugated rail stops development. The conclusion is based on 2 years of observations.