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EPBM Systems Product Guide

EPBM Systems Product Guide
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Many cutter head configurations are available for The pipe jacking EPBM control console is located Spoils are mixed with foam and slurry to ease in optimum soil displacement from the EPBM face. inside the tunnel where operators have full excavation. control over all functions.The screw conveyor advances spoils into the haul unit dirt bucket. EARTH PRESSURE BALANCE SYSTEMS The Akkerman name has long been associated with industry leading projects. Earth Pressure Balance Machine (EPBM) systems have furthered our project realm while offering customers a U.S. manufactured product with the same level of reliability and service options that come with all of our The pipe jacking EPBM excavates spoil by balancing the machine face pressure with the soil pressure, thus minimizing ground settlement. Spoils from the cutter chamber are mixed with foam and slurry to balance the face pressure and are removed through the screw conveyors and haul system. Operators, in a control console, guide the machine and monitor targeting data, pressures, positions, speed, torque and flow to pilot an accurate course. A hydraulic jacking frame in the launch shaft advances the machine and when retracted, a new pipe section is inserted. Many custom cutter tools and drag bit configurations are available for the mixed face or soft ground bi-directional cutter head. station, segment handling, hydraulics, VFD, transformers, and blower cars. Akkerman EPBM systems, complex in design and performance, are custom built to suit project demands. We work closely with our customers, thoroughly analyzing the project and recommending a system, to complete the job efficiently and Thesegmenterecting EPBM is custom builttojobspecifkations. The main distinction between the pipe jacking EPBM and those designed for segment erecting is the machine's capability to install concrete segments, curved tunnels and extended drive lengths.The spoil removal process through a screw conveyor is essentially the same as other pipe jacking applications. A series of back-up cars follow behind the EPBM, housing the operator Many specialized back-up cars are needed to perform the complex operations of the segment erecting EPBM. The segment erector places tunneling segments The control console car is where the operator in the appropriate position then the EPBM monitors and adjusts all EPBM functions. advances off of the tunnel to move forward.

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EPBM Systems Product Guide
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