目前,我国多数编组场采用铁鞋制动。有的站又增设了股道脱鞋道岔。由于低速目的制动次数的增加,被制动车组的反作用力减少、因而在铁鞋制动中就经常出现制动后铁鞋被车轮压住,撤不下来,成为安全隐患的新问题。据调查,佳木斯站驼峰凋车区,每班就要发生压鞋3—4次。因为机车每次下峰撤 At present, the majority of our grouping field using iron shoes brake. Some stations have added a share off the road turnout. Due to the low-speed purpose of increasing the number of brakes, the reaction force of the reduced fleet, brake shoe so often appear in the brake after the iron shoe is pressed by the wheel, can not withdraw, a new problem of security risks. According to the survey, Jiamusi Hump car park, pressure shoes occur every 3-4 classes. Because every time the motorcycle peak withdrawal