Is it illegal to dig the railway subgrade privately?

Article 117 Whoever sabotages tracks, bridges, tunnels, highways, airports, navigation channels, lighthouses, signs or engages in other sabotage activities, which is enough to overturn or damage trains, cars, trams, ships and aircraft, but has not caused serious consequences, shall be sentenced to fixed-term imprisonment of not less than three years but not more than 10 years.

Article 119, paragraph 1, whoever destroys means of transport, traffic facilities, power equipment, gas equipment and inflammable and explosive equipment, thus causing serious consequences, shall be sentenced to fixed-term imprisonment of not less than 10 years, life imprisonment or death.

Article 61 of the Railway Law: Whoever intentionally damages or moves the railway traffic signal device or places obstacles on the railway line that can overturn the train, but has not caused serious consequences, shall be investigated for criminal responsibility in accordance with the provisions of Article 108 of the Criminal Law; If serious consequences are caused, criminal responsibility shall be investigated in accordance with the provisions of Article 110 of the Criminal Law.