Construction site of Guangzhou Metro Line 18Located in the alluvial plains of the Pearl River Delta, Guangzhou has an unique geological fault structure, known as the ‘’geological museum’. The metro project is spread all over this city and has 33 comprehensive hubs reaching 7 districts.
The region has both soft and hard rock; the silt layer has high water content and low bearing capacity, making it very easy for ground settlement. The TBMs had to cross the area with high safety risk and faced a lot of difficulty during construction.
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