Experimental Study on Rock-Support Interaction in Deep Tunnel Under Complex Geological Conditions

Ren, Mingyang; Zhang, Qianyong; Zhang, Longyun; Wang, Wangsheng

doi:10.1007/s10706-021-01724-z

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…'ere are many active faults along the tunnel line, and karst is relatively developed. When the tunnel crosses the fault fracture zone, major engineering geological disasters such as water and mud inrush may occur, which play a controlling role in the whole water diversion project [26,27]. In this study, the typical deep-buried tunnel section (DL36 + 450-DL36 + 550) is selected to carry out the fluidsolid coupling model test.…”

Section: Application Of Fluid-solid Coupling Analogous Materialsmentioning

confidence: 99%

Development and Application of Analogous Materials for Fluid-Solid Coupling Physical Model Test

Ren

Yin

Li³

et al. 2022

Advances in Materials Science and Engineering

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The coupling effect between the stress field formed by rock mass and the seepage field formed by groundwater has an important impact on the stability of underground engineering. In order to conduct the fluid-solid coupling physical model test in the laboratory, it is necessary to develop suitable analogous materials. In this study, a new type of analogous material reflecting the fluid-solid coupling effect is developed with iron powder, barite powder, and quartz sand as aggregates, white cement as a cementing agent, and silicone oil as a regulator. Through a large number of orthogonal experiments, the influence laws of different material contents on the mechanical properties and permeability characteristics of analogous materials are obtained. In addition, a method for quickly determining the proportion of components in fluid-solid coupling analogous materials is also proposed. The developed analogous material is employed in the fluid-solid coupling physical model test of a deep tunnel. The variation laws of rock stress, displacement, and seepage pressure around the tunnel during construction are obtained, which verifies the feasibility of the developed analogous material.

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Section: Application Of Fluid-solid Coupling Analogous Materialsmentioning

confidence: 99%

Development and Application of Analogous Materials for Fluid-Solid Coupling Physical Model Test

Ren

Yin

Li³

et al. 2022

Advances in Materials Science and Engineering

Self Cite

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“…[9][10][11][12]. A large number of experimental studies have shown that the model test can better simulate the physical and mechanical properties of the rock mass and the structural conditions such as joints and fissures and consider the joint action between the surrounding rock and the support structure, which is conducive to promoting the research on the rockfall mechanism in underground engineering [13][14][15]. However, the traditional physical simulation test equipment for underground engineering can no longer meet modern research needs in terms of loading and excavation.…”

Section: Introductionmentioning

confidence: 99%

A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts

Xin,

Yang,

et al. 2024

Sensors

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Rockfalls are an important factor affecting underground engineering safety. However, there has been limited progress in understanding and predicting these disasters in the past few years. Therefore, a large-scale three-dimensional experimental simulation apparatus to study failure mechanisms of rockfalls occurring during underground engineering was developed. This apparatus, measuring 4 m × 4 m × 3.3 m in size, can achieve vertical and horizontal symmetric loading. It not only simulates the structure and stress environment of a rock mass but also simulates the stepwise excavation processes involved in underground engineering. A complete simulation experiment of rockfalls in an underground engineering context was performed using this apparatus. Dynamic evolution characteristics of block displacement, temperature, natural vibration frequency, and acoustic emissions occurring during rockfalls were studied during the simulation. These data indicate there are several indicators that could be used to predict rockfalls in underground engineering contexts, leading to better prevention and control.

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A case study of the failure mechanism analysis and support design of a tailrace tunnel in a weak fracture zone containing expansive minerals

Zhang²,

Mao³

et al. 2022

Bull Eng Geol Environ

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Experimental Study on Rock-Support Interaction in Deep Tunnel Under Complex Geological Conditions

Cited by 5 publications

References 26 publications

Development and Application of Analogous Materials for Fluid-Solid Coupling Physical Model Test

Development and Application of Analogous Materials for Fluid-Solid Coupling Physical Model Test

A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts

A case study of the failure mechanism analysis and support design of a tailrace tunnel in a weak fracture zone containing expansive minerals

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