receiving track

Research methods: By studying documentation and taking Datong-Qinhuangdao Heavy-haul railway for example, this paper determines the working scope and rational effective length of the receiving-departure track for heavy load train in technical station.

研究方法：通过文献研究并以大秦线为例，确定重载铁路技术站到发线作业内容及合理的到发线有效长度；

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Research conclusions: The minimum total length of the receiving and departure track for 20 000-ton train in technical station is 3019.24 m, the effective lengths of the segments of the 3 middle switch are 665.24 m, 665.24 m, 665.24 m and 850 m respectively.

研究结论：接发20000t列车的技术站到发线总长度最小可以按3019.24m设置，3个腰岔的设置由前至后各段有效长分别为665.24m，665.24665.24m和850m。

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It can improve the signal-to-noise to over 3 and the receiving sensitivity can reach 10 μ V.For single track section, a 3~ 5 min time delay switch is fixed on the receiver.

对单线区间，在接收装置上设置1个3~5min延时开关；

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