Seismic Response of Prestressed Anchors with Frame Structure

Ye, Shuaihua; Zhao, Zhuangfu

doi:10.1155/2020/9029045

Cited by 16 publications

(8 citation statements)

References 17 publications

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“…According to the case, the three-dimensional finite element models of loess slope reinforced by five frame anchors with a geometric model size of x-axis direction of 10 m, a z-axis direction of 80 m and a z-axis direction of 40 m are established, as shown in figure 3. The relevant parameters are in accordance with table 1, table 2, reference [6] and reference [7] setting, according to the engineering example model, the influence of various anchor failure modes on the slope is calculated. The constitutive model of this project case is HS-small.…”

Section: Calculation Model and Parametersmentioning

confidence: 99%

Simulation Analysis of Slope Stability Strengthened by Frame Anchor Considering Anchor Failure

Chen

Zhang

2022

Advances in Transdisciplinary Engineering

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In engineering, due to the direct or indirect influence of a variety of other factors, lead to local anchor failure, thus forming a hidden danger of slope safety. Through the specific slope engineering case, the corresponding simulation model is established by using PLAXIS 3D to calculate the slope displacement and safety factor under different anchor failure conditions. At the same time of calculating the safety factor of slope stability, the displacement variation law of slope is analyzed, and the relationship curve between slope stability and displacement has been obtained. The results show that there is an obvious split zone in the unsupported slope, and the displacement of the slope is greatly improved after support. The closer the failed anchor is to the middle of the slope and the top of the slope, the less influence it has on the slope safety.

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Section: Calculation Model and Parametersmentioning

confidence: 99%

Simulation Analysis of Slope Stability Strengthened by Frame Anchor Considering Anchor Failure

Chen

Zhang

2022

Advances in Transdisciplinary Engineering

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“…Because of its light weight and good reinforcement effect, it is widely used in the slope support and reinforcement design. By applying certain prestress, the advance reinforcement of the slope can be realized, and the sliding and deformation of the slope can be effectively constrained and controlled 13 , 14 . Although there are many research results in the displacement control and settlement prediction method of filling 2 , 4 , 6 , the displacement deformation characteristics and failure mechanism of the loess fill slope are not fully understood, and the displacement calculation method of loess fill slope supported by frame prestressed anchors remains to be further studied.…”

Section: Introductionmentioning

confidence: 99%

Calculation of horizontal displacement of loess fill slope supported by frame prestressed anchors based on minimum potential energy method

Zhao

Zhu

2022

Sci Rep

Self Cite

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Combined with the deformation characteristics of flexible retaining structure, the horizontal displacement calculation method of loess fill slope supported by frame prestressed anchors is proposed. Based on the minimum potential energy method, the analytical solution of horizontal displacement of slope under self-weight and additional load is derived, and the influence of soil parameters and supporting structure parameters on displacement is analyzed. The proposed calculation method is applied to a practical engineering and compared with the numerical simulation, which shows that the method is reasonable and reliable. The minimum potential energy method is clear in concept and simple in solving the horizontal displacement of loess fill slope supported by frame prestressed anchors. The calculation method proposed in this paper can be applied to the structural optimization design of loess fill slope supported by frame prestressed anchors, and further enrich the displacement calculation theory of slope supported by flexible retaining structure.

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“…Compared with chemical sorbents, microorganisms are more environment-friendly because they attenuate the toxic influence of HMs on organisms without creating secondary pollution or destroying soil properties [ 31 , 32 ]. Microbial bioremediation can be achieved by utilising indigenous microorganisms (IMOs) in the soil environment to break down HMs into their benign components [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Amendments and Indigenous Microorganisms on the Growth and Cd and Pb Uptake of Coriander (Coriandrum sativum L.) in Heavy Metal-Contaminated Soils

Wen-ying

Zhou

et al. 2022

Toxics

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Heavy metal (HM) contamination of soils is a worldwide problem with adverse consequences to the environment and human health. For the safe production of vegetables in contaminated soil, efficient soil amendments need to be applied such as nano-hydroxyapatite (n-HAP) and poly γ-glutamic acid (γ-PGA), which can mitigate heavy metal uptake and enhance crop yield. However, the combined effects of soil amendments and indigenous microorganisms (IMOs) on HMs immobilisation and accumulation by crops have received little attention. We established a pot experiment to investigate the effects of IMOs combined with n-HAP and γ-PGA on coriander (Coriandrum sativum L.) growth and its Cd and Pb uptake in two acidic soils contaminated with HMs. The study demonstrated that applying n-HAP, with and without IMOs, significantly increased shoot dry biomass and reduced plant Cd and Pb uptake and diethylenetriaminepentaacetic acid (DTPA) extractable Cd and Pb concentrations in most cases. However, γ-PGA, with and without IMOs, only reduced soil DTPA-extractable Pb concentrations in slightly contaminated soil with 0.29 mg/kg Cd and 50.9 mg/kg Pb. Regardless of amendments, IMOs independently increased shoot dry biomass and soil DTPA-extractable Cd concentrations in moderately contaminated soil with 1.08 mg/kg Cd and 100.0 mg/kg Pb. A synergistic effect was observed with a combined IMOs and n-HAP treatment, where DTPA-extractable Cd and Pb concentrations decreased in slightly contaminated soil compared with the independent IMOs and n-HAP treatments. The combined treatment of γ-PGA and IMOs substantially increased shoot dry biomass in moderately contaminated soil. These results indicate that solo n-HAP enhanced plant growth and soil Cd and Pb immobilisation, and mitigated Cd and Pb accumulation in shoots. However, the combination of n-HAP and IMOs was optimal for stabilising and reducing HMs’ uptake and promoting plant growth in contaminated soil, suggesting its potential for safe crop production.

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Seismic Response of Prestressed Anchors with Frame Structure

Cited by 16 publications

References 17 publications

Simulation Analysis of Slope Stability Strengthened by Frame Anchor Considering Anchor Failure

Simulation Analysis of Slope Stability Strengthened by Frame Anchor Considering Anchor Failure

Calculation of horizontal displacement of loess fill slope supported by frame prestressed anchors based on minimum potential energy method

Effects of Amendments and Indigenous Microorganisms on the Growth and Cd and Pb Uptake of Coriander (Coriandrum sativum L.) in Heavy Metal-Contaminated Soils

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