位于热带地区的马来西亚铁路(KTM)共有1640km长的路网,每年完成1000Mtkm的货物周转量和15亿人公里的旅客周转量。由于热带气候的影响,给负荷很重的轨道维护带来了一些特殊问题。过去,KTM的钢轨接头绝缘材料采用木制叠压垫,这些木制绝缘接头在32℃以上的高温下,随着钢轨的膨胀和收缩,加上高荷载的作用,经常失效和破损,严重时 The KTM in the tropics has a total length of 1,640 km of road network, with annual cargo turnover of 1000 Mtkm and passenger traffic of 1.5 billion passenger kilometers. Due to the impact of the tropical climate, some special problems have been posed to heavily loaded orbit maintenance. In the past, KTM’s rail joints were insulated with wooden laminated cushions. These wooden insulated joints often failed and broke at elevated temperatures above 32 ° C, along with the expansion and contraction of the rails and high loads,