Field investigation on the mechanical performance of corrugated steel utility tunnel (CSUT)

Che, Hongbo; Tong, Liyuan; Liu, Songyu; Yang, Qiang

doi:10.1016/j.jcsr.2021.106693

Cited by 26 publications

(13 citation statements)

References 19 publications

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“…Extensive focus has been devoted to the examination of the mechanical properties and seismic response of corrugated steel structures within tunnels. Che et al (2021) conducted a comprehensive analysis of the mechanical performance and load-bearing capacity of corrugated steel utility tunnel (CSUT) structures, revealing their remarkable mechanical attributes. Through the integration of rolled corrugated steel plates, the moment of inertia of the section experienced an augmentation, while the square arched cross-section adhered to the principle of soil-structure interaction.…”

Section: Corrugated Steel Support Tunnelmentioning

confidence: 99%

“…Extensive focus has been devoted to the examination of the mechanical properties and seismic response of corrugated steel structures within tunnels. Che et al. (2021) conducted a comprehensive analysis of the mechanical performance and load-bearing capacity of corrugated steel utility tunnel (CSUT) structures, revealing their remarkable mechanical attributes.…”

Section: Introductionmentioning

confidence: 99%

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Study on mechanical properties of corrugated steel support tunnel under fault sliding

Zhang,

Liu,

Sun

et al. 2023

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PurposeThere have been limited investigations on the mechanical characteristics of tunnels supported by corrugated plate structures during fault dislocation. The authors obtained circumferential and axial deformations of the spiral corrugated pipe at various fault displacements. Lastly, the authors examined the impact of reinforced spiral stiffness and soil constraints on the support performance of corrugated plate tunnels under fault displacement.Design/methodology/approachBy employing the theory of similarity ratios, the authors conducted model tests on spiral corrugated plate support using loose sand and PVC (polyvinyl chloride) spiral corrugated PE pipes for cross-fault tunnels. Subsequently, the soil spring coefficient for tunnel–soil interaction was determined in accordance with ASCE (American Society of Civil Engineers) specifications. Numerical simulations were performed on spiral corrugated pipes with fault dislocation, and the results were compared with the experimental data, enabling the determination of the variation pattern of the soil spring coefficient.FindingsThe findings indicate that the maximum axial tensile and compressive strains occur on both sides of the fault. As the reinforced spiral stiffness reaches a certain threshold, the deformation of the corrugated plate tunnel and the maximum fault displacement stabilize. Furthermore, a stronger soil constraint leads to a lower maximum fault displacement that the tunnel can withstand.Research limitations/implicationsIn this study, the calculation formula for density similarity ratio cannot be taken into account due to the limitations of the helical corrugated tube process and the focus on the deformation pattern of helical corrugated tubes under fault action.Originality/valueThis study provides a basis for the mechanical properties of helical corrugated tube tunnels under fault misalignment and offers optimization solutions.

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Section: Corrugated Steel Support Tunnelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on mechanical properties of corrugated steel support tunnel under fault sliding

Zhang,

Liu,

Sun

et al. 2023

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“…In order to solve the above problems, some scholars have proposed a steel corrugated plate as the main body of the support structure [3,4]. Firstly, as a kind of construction material, steel is very popular in civil engineering, and has been studied in great depth for its composition and properties [3,5]. Secondly, the mechanical analysis of steel-concrete composite structures is a hot topic in civil engineering research as well [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Supporting Structure of Steel Corrugated Plate-Mold Bag Concrete and Its Application in a Circular Shaft

Li,

Wang,

Zhang

et al. 2023

Applied Sciences

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To cater to the problems of a poor working environment, a large amount of rebound, and the high energy consumption of sprayed concrete in tunnel engineering, this paper proposes a new support scheme with a steel corrugated plate combined with mold bag concrete. Analytical solutions of stresses for steel corrugated plate and mold bag concrete were deduced based on the thin-walled cylinder, and then their strength safety factors were presented. Subsequently, a series of numerical simulations were conducted to investigate the mechanical performance of the third ring of the main structure based on the ‘load-structure’ 3D model. The numerical results were verified using the classical theoretical analysis and the proposed model, and then parametric studies were performed through the numerical method. Finally, field tests in a circular shaft were carried out to verify the feasibility of the structure and process and the engineering effect. The results show that the combination of steel corrugated plate and mold bag concrete is feasible and can realize rapid support technology for underground engineering, which provides a new idea for the supporting technology of underground engineering such as tunnels.

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“…Corrugated steel has been widely used in pipelines, culverts and utility tunnels [9][10][11][12]. When it comes to the construction of tunnels, the corrugated steel plate has been used as support structure and proved to be capable of resisting the surrounding rock deformation [13].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of New Stainless Steel Corrugated Plate Reinforcement of Shield Tunnel Segmental Joints Based on Virtual Tracking Element Technology

Ding¹,

Ma²,

Guo³

et al. 2023

Preprint

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The shield tunnels inevitably endure various damage with the service time increasing. Meanwhile, steel corrugated plate has been used extensively in multiple conditions and proved effective to strengthen the segmental joints by full-scale tests. A numerical model is proposed to probe the feasibility of using new Stainless Steel Corrugated Plate (SSCP) to reinforce the shield tunnel segments. A new method, called virtual tracking element technology, is employed to achieve the simulation of realistic stress state of the segmental joint. Moreover, the segmental joint component analysis and parametric study are conducted based on the numerical model. The results demonstrate that: (1) the virtual tracking element technology proves valid and efficient to simulate the secondary stress state of segmental joint; (2) SSCP reinforcement is not fully utilized when the grade of segmental concrete is C50 and it has abundant safety margin for potential overload; (3) SSCP reinforcement is well-performed regardless of the burial depth and reinforcement in advance is recommended.

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Field investigation on the mechanical performance of corrugated steel utility tunnel (CSUT)

Cited by 26 publications

References 19 publications

Study on mechanical properties of corrugated steel support tunnel under fault sliding

Study on mechanical properties of corrugated steel support tunnel under fault sliding

Supporting Structure of Steel Corrugated Plate-Mold Bag Concrete and Its Application in a Circular Shaft

Numerical Analysis of New Stainless Steel Corrugated Plate Reinforcement of Shield Tunnel Segmental Joints Based on Virtual Tracking Element Technology

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