What kind of tunnels are suitable for slurry shield tunnel boring machines? Slurry shield tunnel boring machines (Slurry Shield Tunnel Boring Machine) are particularly suitable for tunnel excavation work under the following geological and environmental conditions:

  1. Soft soil layers rich in groundwater: One of the most prominent advantages of slurry shield tunnel boring machines is that they perform well in dealing with soft layers rich in groundwater, such as mudstone, silty soil and other saturated clay layers. By establishing a mud barrier, it can effectively control groundwater pressure and prevent groundwater from pouring into the excavation area, while supporting the surrounding soil and preventing landslides.

   2. Crossing rivers and lakes: When tunnels need to cross large rivers or the bottom of lakes, traditional excavation methods are often difficult to implement. Due to its excellent water tightness and stability, slurry shield tunnel boring machines can operate safely in underwater environments to ensure smooth tunnel penetration.

  3. Areas with high groundwater levels: In areas with high groundwater levels, such as coastal cities or construction projects near wetlands, slurry balance TBMs can maintain the stability of the excavation surface through their unique mud circulation system to prevent ground subsidence or deformation caused by groundwater.

   4. Projects that require strict control of soil and water loss: In some ecologically sensitive areas or projects with extremely high environmental protection requirements, slurry balance TBMs can effectively control soil and water loss, reduce the impact on the surrounding natural environment, and meet strict environmental protection standards.

   5. Underground projects in urban centers: Underground construction within cities often faces complex underground pipeline layouts and dense population living conditions. Slurry balance TBMs have become the preferred tool for projects such as urban subways and underground parking lots due to their high operating accuracy, low vibration, and low noise.

  6. Soft rock or mixed geological conditions: In addition to pure soft soil layers, slurry balance TBMs can also adapt to excavation in some soft rocks or mixed geological conditions, and achieve good excavation results by adjusting the mud formula and cutting tool type.

   Due to its unique design and functions, slurry balance TBM is very suitable for tunnel excavation in conditions with complex hydrogeological conditions and high environmental protection requirements. It has broad application prospects in large-scale cross-river and cross-sea tunnels, urban rail transit construction, water conservancy and hydropower projects.