研究目的：大秦线开行20 000 t列车，车型以C80型敞车(铝合金、不锈钢、全钢车体)为主，并在湖东站集结编组200辆发往秦皇岛方向。湖东站设置了适应20 000 t列车作业的到发线，为保证列车安全到达预定的目的地，列车在湖东站进行技术作业，如按照常规设置的列车技术检查设施，将不能适应列车技术检查需要，为满足列车编组50辆、100辆、200辆列车日常技术检查，必须研究新型的列车检查安全防护方式及列车地而试风设施，以保证列车运行安全，并为列车检查人员提供安全保证。
研究方法：研究到发线中间道岔(腰岔)设置型式，分析站场到发线使用方式及作业流程顺序，根据SS4改、DJ-型机车牵引列车方式，机车进出机务段整备作业程序，新型机车；进行模拟不同列车编组方式在到发线上4个分区范围内列车停放位置，研究适应列车日常检查的必要条件，提出可行的新型列车检查设施设置方式。
研究结果：适应各种情况下20 000 t列车作业的列车安全检查，选择合理的安全防护设备和列车地而试风设备设置方式。
研究结论：列检作业线两端设置电动脱轨器，中间腰岔设手动脱轨器，列车试风设备每股道按4段设置轨边试风执行器，同时具有联动试风条件。
Research purposes: 20 000-ton freight train has run on Datong-Qinhuangdao Railway Line, mainly consisting of C80 open wagons which are made of aluminum alloy and stainless steel chassis. 200 wagons are made up train in Hudong station and train runs to Qinhuangdao direction. The arrival and departure tracks available for operation of 20 000-ton train are laid out in Hudong station. It is necessary to carry out the technical operation to train in Hudong station in order to guarantee the train arriving at destination safely, but the conventional technical examination facilities cannot meet the require of the train technical examination. Therefore, it is necessary to make research on the new safe protection mode of train examination and the wayside facilities for testing train braking system in order to meet the requirements of the daily technical examination for trains made of 50, 100 and 200 wagons for the purpose of guaranteeing trains running safely and providing the safety for the train inspector.
Research methods: The research is made on layout mode of intermediate switch (web switch) and analysis is also made for applicable mode and the operation flow sequence of arrival and departure tracks in station and yard. The simulations are made for trains' parking locations in four sub-areas of arrival and departure tracks under different modes of makeup train according to traction modes of Modified SS4 and DJ Model electric locomotives, service operation procedure of locomotive passing in and out the depot, and length of new type locomotive. The research is made on essential conditions available for train's daily examination and the feasible and new layout mode of facilities available for train examination is offered.
Research results: The reasonable safe protection facilities and the wayside facilities for testing train braking system available for various conditions of running 20 000-ton trains shall be chosen.
Research conclusions: The electric derailers should be installed at both ends of line for train examination, manual derailers should be installed at intermediate web switch, and 4 wayside air-testing executors should be set for each track and the facilities for testing train braking system should be equipped with link status.
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