Shield segment maintenance method

• Main Authors: ZHANG SHUAISHUAI, FENG ZHANBING, GU YANG, LIU JIANHUI, WANG DAPENG, YANG SHUMIN, LI XIANGFENG, WANG XINPING, HAN ZHEN, LI CAN, QI TENGWU, HUANG SHENGBAO, GUO SHIRONG, GUO JIANBO, LYU CHENGLIN, LIU BO, ZHOU CHANGGENG
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: PERFORMING OPERATIONS; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE

The invention relates to the technical field of shield segment maintenance, and provides a shield segment maintenance method which comprises the following steps: after segment concrete is poured into a mold, covering the surface of a segment of which the surface is initially set with a plastic film for static moisturizing maintenance; after the whole duct piece is initially set, the outer arc face of the duct piece is covered with a plastic film, and then whole steam curing is conducted; after steam curing is completed, the duct piece is demolded, and then the demolded duct piece is soaked in a water pool for curing; after soaking maintenance in the water pool is completed, water spraying maintenance is conducted on the duct piece, and the surface of the duct piece is kept wet; and after water spraying maintenance is completed, outdoor natural placement maintenance is conducted on the duct piece, and maintenance of the duct piece is completed after outdoor natural placement maintenance is completed. According