Shield body structure used for assisting in middle shield mud injection and preventing stratum settlement

• Main Authors: JIA DING, WANG YING, TIAN CHUNYU, DENG HONGMEI, CHENG KEYUAN, DAN ZHAOWANG, RUAN XIAOYONG, YANG XINXIN
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model relates to a shield body structure for preventing stratum settlement in shield tunneling, in particular to a shield body structure for assisting in middle shield mud injection and preventing stratum settlement. A circle of shield head grout stopping plate is arranged on the outer surface of the end, close to a cutter head, of a shield body in the circumferential direction, the shield head grout stopping plate is formed by bending a plate body to form a movable plate and a welding plate, and the welding plate is fixed to the outer surface of the shield body. The shield head grout stopping plates are connected end to end and are tightly fixed to the circumferential position of the shield body. The shield head slurry stopping device has the advantages that the shield head slurry stopping plate is installed on the outer surface of the end, close to the cutter head, of the shield body, a flowing-away channel of middle shield grouting slurry towards a cutter head soil bin can be effectively blocke