TY - JOUR
T1 - A state-of-art review on development and progress of backfill grouting materials for shield tunneling
AU - Jiang, Xi
AU - Zhu, Hehua
AU - Yan, Zhiguo
AU - Zhang, Fengshou
AU - Ye, Fei
AU - Li, Peinan
AU - Zhang, Xuehui
AU - Dai, Zhiren
AU - Bai, Yun
AU - Huang, Baoshan
PY - 2023
Y1 - 2023
N2 - Backfill grouting plays a vital role in shield tunneling. This paper aims to present a comprehensive review of the development and progress of backfill grouting materials specifically designed for shield tunneling. Initially, the various components of grouts, such as pozzolanic materials, filling fine aggregates, and chemical additives, are introduced and discussed in detail. Subsequently, this study investigates critical properties including workability, mechanical properties, and durability of the grouts. Additionally, the principal factors influencing the properties are summarized, along with recommended ranges for specific geological conditions. Furthermore, the paper elucidates the diffusion mechanism of grouting mortars by presenting the current grouting models employed in shield tunneling. Recent advancements in grouting materials are extensively studied and extended, offering new perspectives for future grouting technology in shield tunneling. This study provides valuable insights into overcoming the existing challenges associated with shield tunnel grouting and promoting the evolution of current grouting materials.
AB - Backfill grouting plays a vital role in shield tunneling. This paper aims to present a comprehensive review of the development and progress of backfill grouting materials specifically designed for shield tunneling. Initially, the various components of grouts, such as pozzolanic materials, filling fine aggregates, and chemical additives, are introduced and discussed in detail. Subsequently, this study investigates critical properties including workability, mechanical properties, and durability of the grouts. Additionally, the principal factors influencing the properties are summarized, along with recommended ranges for specific geological conditions. Furthermore, the paper elucidates the diffusion mechanism of grouting mortars by presenting the current grouting models employed in shield tunneling. Recent advancements in grouting materials are extensively studied and extended, offering new perspectives for future grouting technology in shield tunneling. This study provides valuable insights into overcoming the existing challenges associated with shield tunnel grouting and promoting the evolution of current grouting materials.
KW - Backfill grouting
KW - Grouts
KW - Resilient infrastructure
KW - Shield tunneling
KW - Underground space
UR - http://www.scopus.com/inward/record.url?scp=85173819335&partnerID=8YFLogxK
U2 - 10.1016/j.dibe.2023.100250
DO - 10.1016/j.dibe.2023.100250
M3 - Article
AN - SCOPUS:85173819335
SN - 2666-1659
VL - 16
JO - Developments in the Built Environment
JF - Developments in the Built Environment
M1 - 100250
ER -