新建鐵路路線之波狀磨耗特徵探討

CHARACTERISTIC INVESTIGATION OF RAIL CORRUGATION ON NEW RAILWAY

10.6652/JoCICHE.202106_33(4).0001

鄒承諺(Cheng-Yen Tsou)；林智強(Chih-Chiang Lin)

鋼軌波狀磨耗 ； ISO 3095 ； 波狀磨耗量測儀 ； rail corrugation ； ISO 3095 ； corrugation analysis trolley (CAT)

中國土木水利工程學刊

33卷4期（2021 / 06 / 01）

253 - 261

繁體中文

鋼軌波狀磨耗是一種鋼軌本身的不整量，在長時間的輪軌作用下發生於鋼軌踏面，其將造成乘客之乘車舒適度降低。本研究將以臺鐵高雄段之鐵路地下段中的三塊厝站至高雄站間曲線路段作為量測之現地，並透過專業之儀器量測取得鋼軌波狀磨耗數據，後續將不同鋼軌之量測數據進行整理及分析比較。將數據彙整後並進行線性回歸，藉由回歸方程式的斜率判斷兩線的高、低軌波狀磨耗加劇速度，比較後發現高雄往三塊厝的加劇速度是相對於三塊厝往高雄來的更快，又兩條正線皆是高軌的加劇速度大於低軌。另外也藉由低軌的量測數據觀察分析後發現，兩線的低軌在波長125 mm和100 mm有上升的情形。將上述提及的主要波長12.5 mm和10 mm以及特徵波長125 mm和100 mm與國外文獻進行比較後，推測高軌的主要波長12.5 mm和10 mm可能是Pinned-pinned共振所引起的波狀磨耗；而低軌的特徵波長125 mm和100 mm則是由P2共振所引發之波狀磨耗，最後藉由最近一次的數據與國際規範ISO 3095判斷路線上之四條鋼軌是否需進行磨軌。

Rail corrugation is a kind of irregularity of the rail itself accumulated after a long period of wheel-rail interaction. In this study, Sankuaicuo Station to Kaohsiung Station which is a subway of Taiwan Railways Administration is selected as the measurement site, and the track corrugated wear data is obtained through actual site measurement. After collecting the data and performing linear regression, the slope of the regression equation is used to determine the increasing speed of the high and low rail corrugation of the up main line and down main line. After comparison, it is found that the increasing speed of the up main line is higher than that of the down main line. And the increasing speed of both main lines are on the high rails higher than the low rails. The wavelengths of 125 mm and 100 mm are the characteristic wavelengths of low rails corrugation in this track. Finally, according to the latest data and the international standard ISO 3095, it is judged whether the four rails on the track need to be ground. The comparison result shows that except for the low rail of the down main line.

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