Line boring and blind boring of 1.375 to 24 in. in cramped places where others won't fit Patented Spherical Bearing Mounts allow quick setup with up to 5 degrees misalignment Up to 650 ft.- ...

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Two tunnel-digging machines that will bore through the ground to create a path for the Metro Purple Line subway under Wilshire Boulevard were unveiled today. The tunnel-boring machines were given ...

The Crenshaw/LAX Line is due to be complete in 2019 ... for the Underground Railroad's Harriet Tubman.) The tunnel-boring machine is huge, and sections of it were lowered into the hole at the ...

The machine had excavated 4.2km of tunnel -- the longest of the eight TBMs used for the SBK Line -- before breaking through at the Pasar Seni MRT station on April 4, 2015.