A state-of-art review on development and progress of backfill grouting materials for shield tunneling

Jiang, Xi; Zhu, Hehua; Yan, Zhiguo; Zhang, Fengshou; Ye, Fei; Li, Peinan; Zhang, Xuehui; Dai, Zhiren; Bai, Yun; Huang, Baoshan

doi:10.1016/j.dibe.2023.100250

Cited by 46 publications

(7 citation statements)

References 127 publications

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“…Insufficient excavation during tunnel construction and untimely construction of the secondary lining may result in lining defects. This untimely construction could lead to significant deformations in the lining, and the inner contour of the primary lining exceeding the expected contour (Lu et al, 2021;Jiang et al, 2023). Inadequate thickness of the lining can cause stress redistribution, reducing the stiffness of the lining and increasing the risk of collapse (Liu et al, 2020).…”

Section: Monitoring the Thickness Of The Liningmentioning

confidence: 99%

Research on the dismantling of double-arch tunnel after long-term service—the case study of Huangmeishan Tunnel demolition project

Kou,

Li,

Xie

et al. 2023

Front. Earth Sci.

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Mountain tunnel structures are subject to a variety of diseases with increasing service life. Earlier tunnels may need to be demolished and expanded because of the poor serving capacity. But few studies of tunnel demolition projects are available. Based on the demolition project of Huangmeishan Tunnel, this paper discusses the demolition scheme of the double-arch tunnel, calculates the stability of the slope, and investigates the defects and material performance in the tunnel. The water leakage in the tunnel mainly occurred at the mid-partition wall and the drainage pipe was clogged severely. The largest width of the crack detected is 15 mm. Material performance tests indicated that the concrete material strength exceeded the design values. In the loading test, the largest displacements of the tunnel arch and haunch were 1.73 and 1.32 mm, which verified the safety of heavy vehicles in construction. Finally, suggestions are given to avoid similar phenomena in other tunnels during the design, construction, and operation phase. The novelty of this study lies in its comprehensive analysis of a tunnel demolition project. The findings of this study contribute to enhancing the knowledge and understanding of tunnel demolition and support the safe and efficient execution of future demolition projects.

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Section: Monitoring the Thickness Of The Liningmentioning

confidence: 99%

Research on the dismantling of double-arch tunnel after long-term service—the case study of Huangmeishan Tunnel demolition project

Kou,

Li,

Xie

et al. 2023

Front. Earth Sci.

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“…Steel slag 3 of 23 applications in Japan are mainly concentrated in civil engineering, road engineering, and the return to metallurgical recycling. Japan has provided valuable reference and insights for countries worldwide in the comprehensive recycling of industrial waste resources and the development of a circular economy model [16,17].…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Mechanical and Durability Characteristics of Steel Slag-Infused Asphalt Concrete in Roadway Construction

Zhao,

Zhang

2024

Buildings

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Steel slag is a solid byproduct of the steelmaking process, widely generated in the metallurgical industry. Due to its alkaline nature and excellent adhesive properties with asphalt, it represents a potential road construction material with outstanding road performance, making it well-suited for utilization in highway construction. This paper conducts a systematic analysis of the physical and chemical properties of steel slag, specifically South Steel Electric Furnace slag, and compares it with natural basalt and limestone aggregates. The aim is to establish a foundation for the application of steel slag in asphalt mixtures. Building upon this foundation, we carry out proportioning design for AC-13C and SMA-13 steel slag asphalt mixtures, followed by a comprehensive study of their high-temperature stability, low-temperature stability, water stability, and fatigue performance. Our research reveals variations in the chemical composition of different steel slags, with CaO, SiO2, and Fe2O3 being the primary components. The content of harmful elements varies depending on the steelmaking raw materials and additives used. Notably, the optimum asphalt-to-aggregate ratios for AC-13C and SMA-13 significantly surpass the specified requirements. The freeze–thaw splitting strength ratio and residual stability of steel slag AC-13C and SMA-13 asphalt mixtures exceed the specified requirements, with AC-13C demonstrating the highest water stability, boasting a freeze–thaw splitting strength ratio of 94.07%, and a residual stability of 93.8%. In terms of fatigue characteristics, SMA-13 exhibits a longer fatigue life than AC-13C, indicating superior fatigue performance for steel slag SMA-13. Steel slag enhances the abrasion resistance and rutting resistance of asphalt pavement surface layers, fully meeting the performance requirements for high-grade road surface layers.

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“…Current research on injectivity primarily focuses on cement grout [18]. King and Mitchell et al [19][20][21][22][23], respectively, proposed to evaluate the injectivity of the injected medium based on the ratio of the characteristic particle size of the injected medium to the characteristic particle size of the grouting material and other mathematical relations.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Injectability of Infiltration Grouting in Surface Moraine of Pulang Copper Mine

Liu,

Sun,

Feng

et al. 2024

Water

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In order to effectively reduce the risk of underground debris flow, surface moraine is solidified and modified by using grouting technology to realize the change in fine-grained moraine from “powder” to “block” to change the source conditions of underground debris flow and to reduce the risk of moraine from the root. In this paper, the effects of grouting pressure, porosity, and pore diameter on the spillability of moraine are investigated experimentally. The results show that the grouting depth increases linearly with increasing sample porosity. For the same sample density, the grouting pressure is proportional to the grouting depth. As the pore diameter of the sample increases, the longitudinal grouting depth of the sample increases, but the transverse diffusion distance decreases. The chemical grout in the moraine is mainly split-infiltration grouting mode. The present research results can provide effective support for the prevention and control of underground debris flow in Pulang Copper Mine.

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A state-of-art review on development and progress of backfill grouting materials for shield tunneling

Cited by 46 publications

References 127 publications

Research on the dismantling of double-arch tunnel after long-term service—the case study of Huangmeishan Tunnel demolition project

Research on the dismantling of double-arch tunnel after long-term service—the case study of Huangmeishan Tunnel demolition project

Analyzing the Mechanical and Durability Characteristics of Steel Slag-Infused Asphalt Concrete in Roadway Construction

Experimental Study of the Injectability of Infiltration Grouting in Surface Moraine of Pulang Copper Mine

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