Application of polymer split grouting technology in earthen dam: Diffusion law and applicability

Hao, Yanjie; Guo, Chengchao; Shi, Mingsheng; Wang, Fuming; Xia, Yangyang; Wang, Chaojie

doi:10.1016/j.conbuildmat.2023.130612

Cited by 12 publications

(2 citation statements)

References 35 publications

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“…By selecting and blending different raw materials, they achieved the optimization design and preparation process of grouting materials and explored the performance characterization and application fields of grouting material properties. Aiming at the common diseases of road pavements, they independently developed a set of fast and effective grouting techniques and technologies for repairing diseases using the characteristics of polymer materials, which have been widely used in road pavements, pipelines, dams, tunnels, bridges, and other practical engineering fields [39][40][41][42]. This has played a great role in the South-to-North Water Diversion Project, Yi-Wan Railway Sudden Mud Control, Underground Engineering Sudden Water Surge Control, and other major restoration projects.…”

Section: Organic Grouting Materialsmentioning

confidence: 99%

A State-of-the-Art Review on the Study of the Diffusion Mechanism of Fissure Grouting

Du,

Li,

Fang

et al. 2024

Applied Sciences

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China is renowned for its extensive underground engineering projects and the complex geological and hydrological conditions it faces. Grouting treatment technology is widely employed in deep-buried mines and tunnels, where grouting parameters such as materials, pressure, volume, and hole arrangement significantly impact the effectiveness of grouting. This review paper comprehensively examines current research on grouting materials, theories, experiments, and numerical simulations. It summarizes the various factors that must be considered during the grouting process of fissures and explores the diffusion mechanisms of grout under their influence. Furthermore, further research is needed on the mechanisms and treatment methods for poor grouting in rock masses, the distribution patterns of fissures, optimization methods for grouting parameters, and grout quality assessment techniques. Future research should focus on developing more efficient experimental methods with higher accuracy levels while advancing grouting technologies. Establishing comprehensive and accurate rock mass models along with improving monitoring capabilities are also crucial aspects to consider. Therefore, studying the diffusion mechanisms of grout in fissured rock masses is of significant importance for the practical operation of underground engineering projects.

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Section: Organic Grouting Materialsmentioning

confidence: 99%

A State-of-the-Art Review on the Study of the Diffusion Mechanism of Fissure Grouting

Du,

Li,

Fang

et al. 2024

Applied Sciences

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“…Leakage issues arising from surface cracks in concrete dams are typically averted through the application of polymer geomembranes or coating materials onto the dam's surface [18][19][20]. As per ICOLD Bulletin 135, approximately 400 dams worldwide have incorporated PVC geomembranes to mitigate seepage concerns [21].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Hydraulic Fracturing and Flexible Anti-Hydrofracturing Solution for Xiaowan Arch Dam

Jia

Yang

et al. 2023

Applied Sciences

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Understanding hydraulic fracturing in concrete super-high arch dams is vital for the implementation of safety measures on the bearing surface. In this study, we conducted tests on hydraulic fracturing for the Xiaowan arch dam (294.5 m) to analyze concrete behavior at cracks under various stress conditions. The risk of hydraulic fracturing near the dam heel was identified without compressive stress. Addressing this, we propose a flexible anti-hydrofracturing system using GB sealing material and a spray polyurea coating. Simulation tests on three schemes: ‘3 mm GB plate + 4 mm polyurea’, ‘1 mm GB glue + 5 mm polyurea’, and ‘7 mm polyurea’ showed effective prevention of hydrofracturing at concrete crack openings of 5 mm, 8 mm, or 10 mm under 300 m water pressure. Field tests supported ‘3 mm GB plate + 4 mm polyurea’ and ‘7 mm polyurea’ as optimal solutions for dam sections. Implementation involves a protective block layout with ‘3 mm GB plate + 4 mm polyurea’ on blocks and ‘7 mm polyurea’ in interval zones and corners. Since 2008, maximum leakage, including rock foundation, has remained minimal at 2.78 L/s under regular water levels. These insights aid similar concrete dams in optimizing safety systems.

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Penetration mechanism of grouting by using the cement-based slurry with time-dependent viscosity

Wang,

Zhang,

Liu

et al. 2024

Arch Appl Mech

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Application of polymer split grouting technology in earthen dam: Diffusion law and applicability

Cited by 12 publications

References 35 publications

A State-of-the-Art Review on the Study of the Diffusion Mechanism of Fissure Grouting

A State-of-the-Art Review on the Study of the Diffusion Mechanism of Fissure Grouting

Investigation on Hydraulic Fracturing and Flexible Anti-Hydrofracturing Solution for Xiaowan Arch Dam

Penetration mechanism of grouting by using the cement-based slurry with time-dependent viscosity

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