It is impossible not to affect the railway operation. Under normal circumstances, the construction unit will point out to the relevant railway departments that there is a skylight under construction at a certain time, that is, there are two or three hours when no train passes through this railway. The constructor shall carry out the construction under the condition of subgrade reinforcement within the specified time. In general, the construction machinery will slowly push the cement pipe with a certain diameter into the subgrade as reinforcement, and then make the required culvert according to the construction requirements.
If it can't be completed within the specified time, it is necessary to inform the railway department that the trains arriving in this area will run at a limited speed and stop construction when the trains pass by to prevent accidents.