segmental lining是什麽意思

[詞典] 管片襯砌; 拼裝襯砌; 單層襯砌;

[例句]Composite shield is characterized by self-driving and cast in site reinforced concrete lining instead of segmental lining.

組合式盾構的特點是能自行推進，可不用裝配式襯砌管片，而采用現澆鋼筋混凝土襯砌。