Prefabricated inverted arch piece lining cutting structure of subway TBM worker method

• Main Authors: PENG JIANHAI, SHI XUANTAO, ZHANG ZENG, XU LIANG, HE XUSU, LUO SHIPEI, LI HUI, LI DECAI, XU QIAN, XU JIANXUAN, HU XIAOWEI, YUE YINGQIN, LIN GANG, CHEN JUN, ZHANG JIANXIANG, AO GUIYONG
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2016
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

Prefabricated inverted arch piece lining cutting structure of subway TBM worker method to effectively improve the efficiency of construction in TBM tunnel, reduce project cost under the prerequisite of security in guaranteeing the work progress. Including reinforced concrete structure's prefabricated inverted arch piece, this prefabrication inverted arch piece outside has the arc section with the adaptation of tunnel excavation profile phase, and the inboard has the first step face that is located the middle part and is located the second step face outside the first horizontal both sides of step face. Longitudinal separation sets up TBM construction rail mounting hole on the first step face, and longitudinal separation sets up secondary lining construction rail mounting hole on the second step face.