A novel vertical waterproofing joint with trapezoidal steel plate connections for steel–concrete underground silos: Bending test and numerical simulation

Zhang, Hao; Wang, Hongkai; Yang, Jinping; Wang, Fuming

doi:10.1016/j.tust.2023.105150

Cited by 7 publications

(2 citation statements)

References 29 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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“…A steel silo is a type of storage equipment that is used to store cement, grains, fly ash, clinker, aggregate, coke, pellets, and other powdery granular materials [1][2][3]. The dimensions of a spiral steel silo are usually large.…”

Section: Introductionmentioning

confidence: 99%

An Automatic Welding Robot for the Roof of Spiral Steel Silo

Zhang,

Yuan,

Cao

et al. 2023

Processes

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A spiral steel silo has become the preferred choice for building steel silos because of its short construction period, low cost, and high strength. Owing to the harsh outdoor welding conditions of the spiral steel silo and the high risk of manual welding, in this paper, an automatic welding robot is proposed, and its key technology is studied. The welding process parameters consisted of welding voltage, current, and the distance between the conductive nozzle and the base material, which were determined through experiments. The key technology of seam tracking on the roof of a spiral steel silo was studied. Finally, a weld bead tracking experiment and prototype welding experiment were carried out. The results suggest that the prototype can track the weld bead stably and accurately, and the welding effect can meet welding process requirements when the welding current is 200 A, the voltage is 20 V, and the distance between the welding nozzle and the base material is 12 mm.

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Full‐scale experimental and theoretical investigation on wall stress for underground ecological group tanks with four‐circle tangential connections

Zhang,

Sun,

Yang

et al. 2024

Structural Design Tall Build

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SummaryThe storage safety of edible oil is critical for global and Chinese food security. In this study, a practical underground four‐circle tangential group tank with the steel‐plate and concrete structure based on a grain storage warehouse was firstly introduced, and the measured hoop reinforcement stress of the outer tank wall is discussed. Secondly, a numerical model consistent with the practical underground group tank is established from the measured data. The distribution of the hoop reinforcement stress of the outer tank wall under earth pressure is extracted and analyzed thoroughly. Finally, formulas reflecting the properties of the hoop reinforcement stress distribution are presented based on the theoretical analysis, and their accuracy is verified by comparison with the measured data. It could be conducted from the experimental results and theoretical formulas that the outer tank wall is under compressive pressure station generally, and the compressive stress increases with the increasing of the ring angle until reaching a steady state. Moreover, the hoop stress curve follows a disproportional function approximately. The moment at 180° hoop with 1‐m plate belt follows the arc‐tangent function while the moment has a sudden‐change point at 120°, which has minor effect on the reinforcement of this tank wall. Consequently, additional attention should be paid to the effects of this sudden‐change phenomenon on the associated structures in in the process of designing of underground storage tanks.

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A novel vertical waterproofing joint with trapezoidal steel plate connections for steel–concrete underground silos: Bending test and numerical simulation

Cited by 7 publications

References 29 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

An Automatic Welding Robot for the Roof of Spiral Steel Silo

Full‐scale experimental and theoretical investigation on wall stress for underground ecological group tanks with four‐circle tangential connections

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