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EPB (Earth Pressure Balance) tunnel boring machines are extensively used for tunneling in confined or pressurized ground conditions. Progressing under pressure, these tunnel boring machines require the use of products with very specific characteristics for optimum productivity in excavating the tunnel at all levels.
⚙️ Description of EPB Tunnel Boring Machine
EPB(Earth Pressure Balance) tunnel boring machine mainly consists of cutter, anterior shield, middle shield, tail shield. It is mainly applied to less underground water, stickiness stratum of small permeate coefficient, grittiness stratum and gravel stratum, it have many functions, such as excavation advance, synchronize lining, disposable become to hole and so on. EPB(Earth Pressure Balance) tunnel boring machine keeps soil mass pressure of excavation cabin, maintain relative stability of excavation facial through by accuracy control the muck displacement of excavation cabin. In order to improve the plasticity, liquidity and water tightness of soil mass, and improve the excavation efficiency of cutter, reduce cutter abrasion through by inject bubble, polymer and bentonite from cutter to excavation face. Different cutter structure and cutter tool configuration, so this kind of EPB(Earth Pressure Balance) tunnel boring machine can suitable for wide and complicated geological condition.
NHI has manufactured over 70 sets of various types of Earth Pressure Balance (EPB) tunnel boring machines, many of which have been exported to international markets such as the Middle East and Southeast Asia. EPB machines offer a compelling cost advantage—both in terms of equipment investment and construction expenses—compared to traditional full-section TBMs. They are known for their stable excavation face, high construction efficiency, strong safety performance, and operational reliability. It will develop to diameter upsizing and adapt big burial depth, high water pressure stratum, etc.
⚙️ Features of EPB Tunnel Boring Machine
Excavation Face Stable
High Efficiency Construction
Good Safety
Reliability
⚙️ After-sales Service 400-600-4666 (24 Hour Online)
NHI's after-sales service center is equipped with a team of over 200 experienced engineers, who provide year-round services for various projects in China and overseas. They offer comprehensive on-site support, including son-site parts inspection, installation guidance, operation training, equipment commissioning, and performance testing for final acceptance. The team promptly provides technical support for any issues that arise during equipment operation and system, ensuring full-process service for users.
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