Evaluation of underground tunnel response to reverse fault rupture using numerical approach

Baziar, Mohammad Hassan; Nabizadeh, Ali; Mehrabi, Reza; Lee, Chung Jung; Hung, Wen Yi

doi:10.1016/j.soildyn.2015.11.005

Cited by 68 publications

(16 citation statements)

References 24 publications

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“…At present, elastic-plastic and rheological analyses still dominate the research methodology, whereas damage, breakage, and dilatation are gradually becoming research interests [14][15][16][17][18]. Numerical simulation [19][20][21] and indoor simulation experiments [22] are relatively direct research methods. He et al conducted a numerical simulation on a roadway in Xing dong Mine using FLAC3D; they also performed spot tests and underground trials and concluded the instability mechanism of high-ground stress roadway under the mining stress was brought by excavation, which caused the shear dislocation of the rock stratum and further resulted in the dilatation and large deformation of surrounding rocks [23].…”

Section: State Of the Artmentioning

confidence: 99%

Similar Physical Simulation on the Deformation of Surrounding Rocks of Floor Roadway Caused by Coal Mining Under Tectonic Stress

Zhang¹,

Wu²,

Wang³

et al. 2017

JESTR

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At present, the instability of floor roadway is increasingly serious, and even the representative high-performance U-steel support cannot provide roadways with completely effective support. Thus, the mechanism of roadway deformation should be analyzed rather than only considering the roadway support. To study the influence of coal mining on the stability of floor roadways under tectonic stress, taking the floor roadway under No.8 coal seam in Luling Coal Mine in China as the research object, the roadway deformation was tested with and without tectonic stress through the similar physical simulation method. Finally, the changing mechanisms of the stress field, fracture development and displacement field of the surrounding rocks in the floor roadway under mining effects were systematically analyzed. The results show that: (1) under the same stress condition, deformation and fracture of the floor roadway increase with the increase of mining step; (2) without tectonic stress, the maximum hoop stress of the floor roadway arch foot is 32.5 MPa located 2.7 m away from the roadway wall. Meanwhile, under tectonic stress, the maximum stress changes to 38.5 MPa at 3.6 m away from the roadway wall; (3) whether under mining effects or not, the deformation time is longer and deformation failure is larger under tectonic stress. The conclusions indicate the tectonic stress field has significant on roadway deformation and failure, which can provide the technical reference for the optimization of mine roadway layout.

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Section: State Of the Artmentioning

confidence: 99%

Similar Physical Simulation on the Deformation of Surrounding Rocks of Floor Roadway Caused by Coal Mining Under Tectonic Stress

Zhang¹,

Wu²,

Wang³

et al. 2017

JESTR

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“…Strong earthquakes induce stick-slip dislocation of active faults, which is the main cause of serious damage to the tunnel structure [2][3][4]. How to improve the antibreaking performance of the tunnel with the stick-slip fracture is one of the key technical problems to be studied and solved urgently.…”

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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“…Hence, centrifuge experiments are frequently used in the laboratory to study the actual behaviors of prototype models. For example, Brennan et al [19] studied the strength reduction in the upheaval buckling of buried pipes, Baziar et al [20] investigated the responses of underground tunnels to rupture reverse faults, and Candia et al [21] discussed the response of a retaining wall to seismic activity. In addition, centrifuge experiments have been developed to study water-soil interactions (e.g., the research on submarine landslides presented by Coulter and Phillips [22], Coulter [23], and Gue [24]).…”

Section: Introductionmentioning

confidence: 99%

Solitary Wave Generation and Propagation under Hypergravity Fields

Wang

2018

Water

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The traditional small-scale marine engineering experiments that are performed under normal gravity fields always encounter one stubborn difficulty related to full-scale prototype models. However, the difficulty can be resolved by centrifuge experiments that can generate hypergravity fields in which the centrifuge acceleration is many times greater than the gravity acceleration. In this study, the generation of solitary waves in hypergravity fields is proposed using solitary wavemaker theory and scaling laws. A series of case simulations are performed under four different gravity fields (1 g, 30 g, 50 g, and 100 g, where g is the gravity acceleration). These cases are presented and discussed in detail to understand and verify the scaling laws and the stability of the solitary wave during its generation and propagation within hypergravity fields. The numerical results show that the waveform and the static pressure field that are obtained during the simulations performed under different gravity fields agree well at the macroscale. Since the velocity field is sensitive to wave attenuation, time lag, fluid viscosity and surface tension, some discrepancies can be found in the velocity field. It should be noted that the fluid viscosity and surface tension have influence on the wave attenuation. However, wave attenuation and time lag can be offset by a well-designed incident wave condition.

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Evaluation of underground tunnel response to reverse fault rupture using numerical approach

Cited by 68 publications

References 24 publications

Similar Physical Simulation on the Deformation of Surrounding Rocks of Floor Roadway Caused by Coal Mining Under Tectonic Stress

Similar Physical Simulation on the Deformation of Surrounding Rocks of Floor Roadway Caused by Coal Mining Under Tectonic Stress

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

Solitary Wave Generation and Propagation under Hypergravity Fields

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