Response of gravity retaining wall with anchoring frame beam supporting a steep rock slope subjected to earthquake loading

Lin, You‐Yu; Guolin, Yang; Xiao, Yang; Zhao, Lianheng; Shen, Qing; Qiu, Mingming

doi:10.1016/j.soildyn.2016.11.002

Cited by 40 publications

(18 citation statements)

References 29 publications

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“…As shown in Figure 2, r 0 and θ 0 are the length and angle of the baseline OA, respectively; r h and θ h are the length and angle of the baseline OD, respectively; r B and θ B are the length and angle of the beeline OB, respectively; r C and θ C are the length and angle of the beeline OC, respectively. e height of the overall failure mechanism is H. e vertical distance from the top of the slope to the right spandrel point B of the tunnel is α 3 H. e vertical distance from point B to point C is α 2 H. e vertical distance from the left sidewall point C to the slope toe point D is α 1 H, where α 1 , α 2 , and α 3 are the height coefficients which can be determined by (3). e length of the beeline A′A is L.…”

Section: Basic Assumptionsmentioning

confidence: 99%

“…Firstly, the rock mass gravity rate of each area is obtained by the indirect method. en, the rock mass gravity rate of the area ABCDA′A is calculated by simple algebraic summation, which can be expressed as 3 , and f 4 are the functions of (θ h , θ 0 ) and c is the unit weight of rock mass. Figure 3 shows the detailed calculation of the function f.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

“…e stability of rock and soil slope [1,2] under earthquake has become a hot research topic at present [3][4][5]. Based on the quasi-static method, the limit equilibrium analysis and upper bound approach of limit analysis have been widely utilized to evaluate the seismic stability of the slope.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Upper Bound Limit Analysis for Seismic Stability of Rock Slope with Tunnel

Jiang

Niu

Yang

et al. 2018

Advances in Civil Engineering

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e rock slopes with tunnels appear widely in the actual project, but there is no executable basis for the seismic stability calculation of the rock slope with tunnel. According to the upper bound theorem of plastic limit analysis and pseudostatic method, the upper bound solution of the safety factor of the rock slope with tunnel was rigorously derived under earthquake loading. is upper solution takes into account the design parameters of the slope and the tunnel, the horizontal and vertical seismic loads, and the physical and mechanical parameters of the rock mass. Comparing the calculated results with the existing results, the validity of the proposed method was verified. e sensitivity and influence of different parameters on the seismic stability of the slope were analyzed. e results show that the three factors such as the horizontal seismic force coefficient, the slope height, and the internal friction angle are the three key factors that influence the sensitivity of the safety factor and have a great effect on it.

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Section: Basic Assumptionsmentioning

confidence: 99%

Section: Advances In Civil Engineeringmentioning

confidence: 99%

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Upper Bound Limit Analysis for Seismic Stability of Rock Slope with Tunnel

Jiang

Niu

Yang

et al. 2018

Advances in Civil Engineering

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“…Nevertheless, it has been reported that the concrete for bolt anchorage could often age with the elapsed time due to steel corrosion, which often results in the failure of a bolt-anchorage stabilization system [3,4]. Similar issues also occur for other civil engineering measures in preventing the landslide accidents, such as gravity retaining wall [5] and anti-slide pile [6]. To address the above issues, various attempts have been undertaken to seek alternative measures that could prevent landslide effectively in the long term.…”

Section: Introductionmentioning

confidence: 98%

Thermal Properties of Carbon Fiber-Reinforced Lightweight Substrate for Ecological Slope Protection

Huang

Xiao

et al. 2019

Energies

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A new ecological substrate is proposed to achieve a desired electric conduction and heating to protect the slope plants from freeze injury. Expanded polystyrene (EPS), cement, carbon fiber, graphite, and raw soil are the main components of the ecological substrate. The electrical conductivity, heating efficiency, thermo-sensitivity, and heat preservation of the substrate are experimentally investigated. The result shows that the addition of carbon fiber could significantly decrease resistivity of substrate, but the effect of fiber content exceeding 3% on the resistivity of substrate becomes insignificant. Conductive fine materials (i.e., carbon fiber and graphite powder) covering the surface of EPS would result in a significant reduction of the global resistivity of non-dry substrate, but it could only slightly affect the counterpart of the completely dry substrates. The substrate could hardly be formed when the EPS content exceeds 4%. As EPS content increases, the contact surface decreases and the resistivity of the substrate increases. The peak temperature at 30 min of substrate without root is higher than that of substrate with plant roots. Nevertheless, the temperature alteration ratio below 40 • C of substrate with plant root is nearly the same as its counterpart in the substrate without roots. The resistance of the substrate with plant roots increases with the temperature. The resistance of rootless substrate decreases by the heat action of the loosely bound water. EPS particles improve the heat preservation performance of substrate, but the heat preservation performance of substrate degrades with the growth of plants.roots grow, it would provide anchoring into bedrock or stable soil layers, which would be further favorable for the slope stability [12][13][14].Due to the high production efficiency, soil-spraying technology, which was first developed by Japanese scholars [15], has been widely used in vegetation engineering for slope restoration. Nevertheless, it was reported that it is difficult to facilitate vegetation on the steep slopes [16]. To address this issue, various researchers [17] attempted to spray the ecological substrates on the slope surface for the slope restoration. The ingredients of the ecological substrate are usually composed of fibers, loam, cement, and a pH-adjusting agent, etc. literature [18] indicated that the ecological substrate can greatly promote the plants' growth, thereby effectively restoring the slope. However, it has been reported that the young plants for slope protection, such as cynodondactylon and zoysiagrass, would stop growing and be fatal to the cold weather, especially when it encounters continuous snow in the winter [19,20]. However, to date, little attention has been paid to the functionality of ecological substrate in protecting the plant growth in extremely cold weather, in contrast to the studies on the vegetative properties of ecological substrate [21,22].Therefore, the current work aims to propose a new type of ecological substrate with the capability of pro...

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“…Many scholars believe that it is necessary to reinforce the slope mentioned above. eory and experiments have been developing very quickly for the reinforced slope under dynamical response [17][18][19][20][21]. For an unstable slope with the potential sliding surface (structural surface), prestressed anchor cable is usually adopted.…”

Section: Introductionmentioning

confidence: 99%

Seismic Response of Rock Slopes with the Anchor Cable in Centrifuge Modeling Tests

Nie

Zhao

Wang

et al. 2020

Advances in Civil Engineering

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In order to study the seismic response of the rock slopes with the anchor cable, centrifuge modeling tests were performed on concrete slope models. Different seismic loadings were performed to investigate the horizontal acceleration response, the rock slope displacement, and the stress of anchor cables. The results show that the horizontal acceleration response is obviously amplified by a rock slope. Under the same conditions, the higher the seismic intensity is, the larger the acceleration amplification coefficient will be. Anchor cable can effectively reduce the acceleration amplification effect of the slope. For the slope with a structural plane, the anchor cable at the structural plane is stressed greatly during the seismic action, and the strength of anchor cables near the expected structural plane is important.

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Response of gravity retaining wall with anchoring frame beam supporting a steep rock slope subjected to earthquake loading

Cited by 40 publications

References 29 publications

Upper Bound Limit Analysis for Seismic Stability of Rock Slope with Tunnel

Upper Bound Limit Analysis for Seismic Stability of Rock Slope with Tunnel

Thermal Properties of Carbon Fiber-Reinforced Lightweight Substrate for Ecological Slope Protection

Seismic Response of Rock Slopes with the Anchor Cable in Centrifuge Modeling Tests

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