Dam & Safety ›› 2026, Vol. 0 ›› Issue (5): 68-.

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Study and optimization of concrete mix design for high-performance TBM segments in super-large-diameter, long-distance pressurized water diversion tunnel#br#

PENG Chunlin, JI Jie, WANG Donglai, WANG Kesheng and CAI Lianli#br#   

  1. China South-To-North Water Diversion Jianghan Water Network Construction and Development Co., Ltd.
  • Received:2026-06-16 Online:2026-10-08 Published:2026-10-28

超大直径长距离有压输水隧洞高性能TBM管片混凝土配合比设计与优化研究

彭春林,纪  杰,王东来,王克生,蔡连利   

  1. 中国南水北调集团江汉水网建设开发有限公司, 湖北  武汉,430048

Abstract:

In response to the urgent demand for high-performance TBM segments in the super-large-diameter, long-distance pressurized water diversion tunnel of water diversion from Yangtze river to Han river, study and optimization of the segment concrete mix design were carried out. By rationally employing supplementary cementitious materials and admixtures, the mix proportion of high-performance concrete was systematically designed and scientifically optimized. The finalized C60W12F100 concrete mix was verified through testing, demonstrating a 28-day compressive strength of 70.2 MPa while meeting all other physical and mechanical requirements. The study provides reliable technical support for the production of high-performance TBM segments under complex geological conditions, and has practical significance for ensuring the construction quality and safety of the water diversion project from Yangtze river to Han river.

Key words: TBM, water diversion from Yangtze river to Han river, segment, mix proportion, concrete

摘要:

针对引江补汉工程超大直径长距离有压输水隧洞对高性能TBM管片的迫切需求,开展了管片混凝土配合比设计与优化研究。通过合理采用辅助胶凝材料并优选外加剂,系统进行了高性能混凝土配合比设计计算与科学优化,最终确定C60W12F100混凝土配合比并进行复核检验,该混凝土28 d抗压强度达到70.2 MPa,其他物理力学特性均满足研制要求。研究成果为复杂地质条件下高性能TBM管片的制备提供了可靠技术支撑,对保障引江补汉工程建设质量与安全具有重要实践意义。

关键词: TBM, 引江补汉工程, 管片, 配合比, 混凝土

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