shield door

There is a pressure wave on the shield door when a train passes through at high-speed, which is similar to the pressure wave when two train pass by each other.

列车高速通过时，屏蔽上出现类似列车交会时的压力波动。

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Now, the pattern of the control of subway environment have been developed into the one that the environment is controlled by the shield door near both side of the platform and the air conditioning system inside the platform from early one by natural ventilation.

地铁站台环控模式已经由早期的自然通风模式发展成如今的在站台两侧设置屏蔽门、站台内部设置空调进行环控的模式。

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When calculating the quantity of air infiltration by a shield door, on the method, the whole dynamical process is realized which the train is gradually stoped from operating and then the shield door is opened.

在计算屏蔽门的漏风量时，在方法上实现了列车从运行到停靠再到屏蔽门打开的整个动态过程。

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