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Dual Mode Tunnel Boring Machine
The second Dual-mode tunnel boring machines: Earth Pressure Balance (EPB) and Slurry Balance excavation modes. In situations where the stability of the excavation face is poor or when dealing with highly water-saturated soft soil, soft rock, gravel, or heterogeneous strata, the EPB mode can be employed to improve the flow and waterproofing of the excavated material. Conversely, in scenarios with high ground water or strict surface control requirements, the slurry balance mode can be used for construction.
One of the dual mode shield:earth pressure and open type dual mode. It refers to the tunnel boring equipment that not only has the earth pressure balanced kinetic energy of shield structure at palm face, but also has the open hard rock cutter of belt machine slag discharge, and at the same time adapts to the possible soft rock, hard rock, and composite stratum engineering geological conditions. The tunneling mode and slag discharge mode can be changed when the geology of the stratum changes, and the interference to the supporting construction is small, which can effectively reduce the project risk.
Dual-mode shield two: soil-pressure balance and mud-water balance dual mode. When the excavation surface has poor stability or is soft soil, soft rock, gravel and uneven hard and soft strata with more water, the soil pressure balance shield mode can be used for digging, so that the cut slag obtains mobility and impermeability. When the excavation surface is water-rich or contains sand pebbles, the mud-water balance mode of construction can be adopted. The equipment is cost-effective and economical, meeting the demand for flexible use in construction.
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Tel:020-22338937
Address:25/F.,Building C1,Guangzhou Industrial Control,No.657 Huadi Avenue South,Zhongnan Street,Liwan District,Guangzhou City,China.