Happy Festival News-Three-three Industrial Beijing Project Realized Interval
On February 19, the Lantern Festival, the capital spread the good news, and the civil engineering 07 bid project of the first phase of the Beijing rail transit new airport line, which was tunnelled by the Sansan industrial shield machine, successfully realized the interval connection. The total length of this interval is 2330m, and the geological condition is Quaternary alluvial-flood layer represented by pebble gravel, clay, silty fine sand, silty clay, fine medium sand and other strata. The earth pressure balance shield machine with an outer diameter of 9114mm made by Sansan Industry has excellent design and excellent performance, with a maximum daily tunneling of 20 rings of 32 meters and a maximum monthly tunneling of 420 rings of 672 meters, which is highly recognized by the owner and the construction unit. Today, it is also the general establishment of China's reform and opening up.