Shaking table tests of tunnel linings in progressive states of damage

Wang, Z.Z.; Jiang, Yida; Zhu, Chang-Song; Sun, Tiecheng

doi:10.1016/j.tust.2015.07.004

Cited by 65 publications

(27 citation statements)

References 13 publications

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“…A range of indicative values is considered for each variable: α ranges from 1 to 19; k b between 1 and 400; T 1 between 0.3 and 1.2 s (Wang et al, 2015); and ξ (which was considered uniform for all modes) between 0.5 and 5%. Then, 10 random combinations of these parameters were created, leading to the test cases outlined in Table 1.…”

Section: Investigated Casesmentioning

confidence: 99%

System Identification of Tunnel Response to Ground Motion Considering a Simplified Model

Alonso‐Rodríguez

Nikitas

Knappett

et al. 2018

Front. Built Environ.

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This paper presents a simplified model using coupled Bernoulli and shear beams supported by Winkler-type springs for system identification of tunnels subjected to earthquake-induced ground motions. The model formulation is introduced and closed-form solutions to the modal characteristic equation and mode shapes are derived. The latter are verified against the results of numerical models. Then, the system identification algorithm is presented, showcasing its ability to recover model parameters when recorded acceleration time histories along the tunnel are compromised by noise and sensor locations are varied. The presented framework can be used to initially and, simply, recover tunnel response when monitoring data is available, or to plan for monitoring campaigns in newly constructed or existing tunnels.

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Section: Investigated Casesmentioning

confidence: 99%

System Identification of Tunnel Response to Ground Motion Considering a Simplified Model

Alonso‐Rodríguez

Nikitas

Knappett

et al. 2018

Front. Built Environ.

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“…In China, the transportation infrastructure in the West has been developed continuously, and the traffic lifeline projects in high earthquake intensity and dangerous mountainous areas have been vigorously carried out. Tunnels crossing active faults have emerged, such as the Lanjiayan Tunnel from the highway of Mianzhu to Maoxian in Sichuan Province (through the Longmen Mountain Branch Fault), the Erlangshan Tunnel on the Yakang highway (through the Baohuang and other active faults), and the series of tunnels on the Jianchuan-Tibet Railway (through the Longmen Mountain, Xianshuihe, Jinsha River, Basu, and other active faults) [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Model Tests on the Antibreaking Countermeasures for Tunnel Lining Across Stick‐Slip Faults

Cui

Wang

et al. 2020

Advances in Materials Science and Engineering

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In order to improve the structural safety and stability of the tunnels crossing stick-slip fault, an indoor model test on the effect of tunnel antibreaking measures under the influence of fault stick-slip movements was conducted. Using contact pressure, longitudinal strain, and safety factor, the antibreaking effect of tunnels was compared and analyzed under 5 kinds of operating conditions, mainly including no measures, structural strengthening, structural strengthening and reducing dislocation layer, structural strengthening and reducing dislocation joint, structural strengthening and reducing dislocation layer, and reducing dislocation joint. The results showed that the longitudinal strain and contact pressure of the tunnel changed markedly (from severe change to more uniform change) when the reducing dislocation measures were adopted in the test, reducing dislocation layer/joint or reducing dislocation layer and reducing dislocation joint. The effect of reducing the fault stick-slip dislocation on the tunnel structure is very limited by only taking structure strengthening measures. The effect of reducing the fault stick-slip dislocation on the tunnel structure is obvious by using the reducing dislocation method, and the minimum safety factor is increased by more than 8 times. The effect of resisting and reducing the fault stick-slip dislocation on the tunnel structure is remarkable by adopting the measures of the structural strengthening and reducing dislocation layer and reducing dislocation joint, and the minimum safety factor is increased by more than 25.45 times. The results can provide reference for the design of antibreaking for the stick-slip fault tunnel in high earthquake intensity and dangerous mountainous areas.

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“…Experts and scholars all over the world have carried out some researches on the antibreaking technology of the traffic tunnel with the stick-slip fracture, which mainly includes the following aspects: the mechanical response, failure, and damage mechanism of the tunnel structure and surrounding rock under the fault stick-slip dislocation based on the interaction were studied by model test and numerical simulation [5][6][7][8][9][10]. Relying on the Bolu tunnel in Turkey and the Koohrang hydraulic tunnel in Greece, the effect of the reducing dislocation joint on the secondary lining with different pitches was compared [11,12].…”

Section: Introductionmentioning

confidence: 99%

Model Test Study on the Antibreaking Technology of Reducing Dislocation Layer for Subway Interval Tunnel of the Stick‐Slip Fracture

Cui

Wang

2019

Advances in Civil Engineering

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Based on the background of the Line F2-3 interval tunnel section of Jiujiawan in Urumqi Subway Line 1, this paper carries out the model test research on the antibreaking technology of the reducing dislocation layer in the tunnel section of the stick-slip fracture. The antibreaking effect of different locations and number of reducing dislocation layers in tunnel engineering is analyzed in this paper. The results show that when the double reducing dislocation layer, respectively, set between the surrounding rock and the primary support, and the primary support and the secondary lining, the antibreaking effect is the best. It is recommended to use this scheme for antibreaking design. The research results can provide reference for antibreaking design of traffic tunnels in active fault zones.

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Shaking table tests of tunnel linings in progressive states of damage

Cited by 65 publications

References 13 publications

System Identification of Tunnel Response to Ground Motion Considering a Simplified Model

System Identification of Tunnel Response to Ground Motion Considering a Simplified Model

Model Tests on the Antibreaking Countermeasures for Tunnel Lining Across Stick‐Slip Faults

Model Test Study on the Antibreaking Technology of Reducing Dislocation Layer for Subway Interval Tunnel of the Stick‐Slip Fracture

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