Allowable Displacement of Slope Supported by Frame Structure with Anchors under Earthquake

Ye, Shuaihua; Zhao, Zhuangfu

doi:10.1061/(asce)gm.1943-5622.0001831

Cited by 19 publications

(13 citation statements)

References 25 publications

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“…In addition, the resistance provided by the frame structure also includes wall-soil adhesion forces, according to the literature 22 , the wall-soil adhesion force can be expressed as: …”

Section: Stability Calculation Of Loess Fissured Slopesmentioning

confidence: 99%

Stability analysis of loess fill slope supported by frame prestressed anchors considering tensile strength cut-off

Zhao,

Zhu,

Hou

et al. 2024

Sci Rep

Self Cite

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In the stability analysis of loess fill slope, the fissure nature of loess is often ignored, which makes the stability calculation of fill slope too conservative. Based on the upper limit theory of plastic limit analysis, the stability analysis model of loess-filled fissured slope supported by frame prestressed anchors was established. Considering the tensile strength cut-off yield property of soil, the stability coefficient of slope was calculated, and the influence of different factors on slope stability was analyzed. The results show that ignoring the fissures in loess will overestimate the stability of the fill slope, and the support structure can significantly improve the stability of the loess-filled fissure slope. The research results of this paper can further enrich the stability analysis theory of loess-filled fissured slope supported by frame prestressed anchors, which is of great significance to guide engineering practice.

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“…In addition, the resistance provided by the frame structure also includes wall-soil adhesion forces, according to the literature 22 , the wall-soil adhesion force can be expressed as: …”

Section: Stability Calculation Of Loess Fissured Slopesmentioning

confidence: 99%

Stability analysis of loess fill slope supported by frame prestressed anchors considering tensile strength cut-off

Zhao,

Zhu,

Hou

et al. 2024

Sci Rep

Self Cite

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show abstract

“…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%

“…Considering the cooperative working relationship between slope soil and prestressed anchor, Zhu and Pan [5] put forward a simplified calculation model of slope displacement supported by frame prestressed anchor. Ye and Zhao [6] based on the energy method, the seismic displacement calculation model of slope reinforced by frame with anchors is established. However, in practical it is not uncommon for the slope to fail due to the direct or indirect action of many other factors, so it is necessary to pay attention to the influence of anchor failure on the slope.…”

Section: Introductionmentioning

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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“…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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Allowable Displacement of Slope Supported by Frame Structure with Anchors under Earthquake

Cited by 19 publications

References 25 publications

Stability analysis of loess fill slope supported by frame prestressed anchors considering tensile strength cut-off

Stability analysis of loess fill slope supported by frame prestressed anchors considering tensile strength cut-off

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

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