1. Laying of urban underground pipelines: such as laying water supply and drainage pipelines, gas pipelines, thermal pipelines, etc., to avoid large-scale excavation and damage to urban roads and surface buildings.
2. Laying of communication cables: including optical cables, electrical cables, etc., without affecting ground traffic and the surrounding environment.
3. Crossing obstacles: When it is necessary to cross obstacles such as rivers, railways, roads, and buildings, directional drills can complete crossing operations underground.
4. Underground space development: For example, laying pipelines and cables in underground parking lots, underground passages and other projects.
5. Repair or replacement of old pipelines: Replace or repair aging or damaged pipelines in situ without damaging the original road surface and buildings.
6. Areas with high environmental protection requirements: such as historical and cultural protection areas, ecological protection areas, etc., to reduce the impact of construction on the environment.
7. Places with limited space: Underground engineering construction in areas where the construction site is narrow and large-scale excavation is not possible.
8. Rapid restoration of traffic and ground use: For example, carrying out underground projects on urban main roads or important transportation hubs can restore normal traffic and ground functions as soon as possible.