Among the engineering projects in the world, the tunnel project of Lixiang Railway is undoubtedly a very challenging project. The railway connects Lijiang and Shangri-La and is an important economic and cultural link between the two places. However, the construction process of this link has been full of difficulties and challenges, and its tunnel project is known as one of the most challenging tunnel projects in the world.

First of all, the geological conditions facing the tunnel project of Lixiang Railway are extremely complicated. The project team needs to face a variety of geological disasters such as earthquakes, landslides, rock bursts, and water inrush. These geological disasters are common in the geological structures of Lijiang and Shangri-La, which bring great difficulties to tunnel construction.

Secondly, climatic conditions are also a major challenge for the Lixiang railway tunnel project. Lijiang and Shangri-La have a plateau climate with cold, thin air. Such weather conditions made tunnel construction much more difficult, and workers had to face the challenges of low temperatures and lack of oxygen.

In addition, the tunnel project of Lixiang Railway is also facing technical difficulties. Due to the complexity of geological conditions and harsh climatic conditions, tunnel construction needs to adopt a variety of advanced technical means. This not only requires the project team to have a wealth of technical experience, but also requires them to have a strong innovation ability.

Despite the challenges, the tunnel builders of the Lixiang Railway are not deterred by the difficulties. With their perseverance, they successfully overcame one difficulty after another and made the construction of Lixiang Railway proceed smoothly. Editor/Xu Shengpeng