The tunnel liner that is being placed by the Bertha tunnel boring machine consists of precast concrete segments. This video by the WSDOT shows how they are made at the casting yard, and what Bertha does with them once they get delivered to her where the action is happening. The finished tunnel will consist of over 14,000 of these precast segments! [Source: WSDOT YouTube Channel. Image: YouTube]
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Chancellor Merkel, Premier Wen Tour Herrenchnecht Facility in Guangzhou
February 21, 2012
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The German Chancellor and Chinese Premier toured a Herrenchnecht facility in China’s Guangzhou Province where Tunnel Boring Machines are manufactured for many of China and Asia’s high-profile tunnel projects. Herrenknecht maintains nine locations in China […]