Study on evolutionary characteristics of toppling deformation of reverse-dip layered rock slope based on surface displacement monitoring data

Xie, Liangfu; E, Yan; Jian-hu, Wang; Lu, Guoyan; Guo, Yu

doi:10.1007/s12665-018-7352-3

Cited by 15 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multiplying the bottom length b/cos θ r of the stratum on both sides of equation (18), equation (19) can be obtained as follows:…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

“…In [5], the authors divided the toppling failures into three groups, i.e., block toppling, flexural toppling and block-flexural toppling (block-flexural toppling can be treated as a recombined form of the above two types). Numerous significant results had been found for block toppling, and relatively complete theoretical analysis methods were developed [6][7][8][9][10][11][12], while researchers continued to be preoccupied with flexural toppling [13][14][15][16][17][18][19][20][21][22]. e limit equilibrium method is one of the most common and effective approaches in studies of flexural toppling failure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Optimization of the Analytical Method for Determining the Flexural Toppling Failure Plane

Diao

2020

Advances in Civil Engineering

View full text Add to dashboard Cite

According to the results of the physical model tests, the failure plane of an anaclinal layered rock slope was a linear-type plane at an angle above the plane normal to the discontinuities, and the failure mode of rock strata was bending tension. However, the shear failure occurred near the slope toe, the effects of the cohesion of the discontinuities on the stability of the slope, and the contribution of tangential force to cross-section axial force were neglected in such studies. Moreover, none of the experts had developed a rigorously theoretical method for determining the angle between the failure plane and the plane normal to the discontinuities. is paper was initiated for the purpose of solving the problems described above. With the cantilever beam model and a step-by-step analytical method, an optimization of the analytical method for determining the flexural toppling failure plane based on the limit equilibrium theory was developed and the corresponding formulations were derived. Based on the present computational framework, comparisons with other studies were carried out by taking a slate slope in South Anhui in China and a rock slope facing the Tehran-Chalus Road near the Amir-Kabir Dam Lake in Iran. Furthermore, the sensitivity analyses of the parameters used in the calculation process of the failure angle of the slate slope in South Anhui in China were performed. e results demonstrated that the failure plane and the safety factor of the stability obtained with the presented method were credible, which verified the proposed method. e dip angle of the slope, the dip angle of the rock stratum, and the friction angle of the discontinuities were the controlling factors for the overall failure of the slate slope in South Anhui in China.

show abstract

“…Multiplying the bottom length b/cos θ r of the stratum on both sides of equation (18), equation (19) can be obtained as follows:…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Optimization of the Analytical Method for Determining the Flexural Toppling Failure Plane

Diao

2020

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…At present, there are three main methods to analyze the deformation evolution characteristics of reverse slope: engineering geological analysis method (Qiu et al, 2016;Tu et al, 2007;Xie et al, 2018;Zhao et al, 2020), physical model test method (Adhikary and Dyskin, 2007;Wang and Guo, 2019;Zuo et al, 2005) and numerical simulation method (Dongxing et studied the effects of different parameters such as cohesion, rock block strength and friction angle on the failure mode and deformation of the slope. (Shishu et al, 2015) through on-site investigation and data analysis, put forward the deformation evolution mechanism of bank slope under the action of reservoir water storage, and made a preliminary judgment on the stability of toppling deformation slope by means of numerical simulation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Deformation Characteristics of Reverse Slope Under The Influence of Reservoir Water Based On Community Detection

Xie

Cui

Qin

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

In order to study the deformation characteristics of reverse slope, this paper took the slope of Xiaodongcao as the research object, applied the Louvain community detection algorithm, considered the influence of reservoir water level change, partitioned the slope deformation characteristics. The deformation characteristic zoning result was superimposed with the slope displacement cloud map and three types of geological geometric characteristic factor zoning map obtained by ArcGIS. The results show that：Community detection can quickly identify the closely connected part of slope network, and the specific location of this part is affected by reservoir water. After the community detection result is superimposed with the displacement cloud map, the areas with large deformation and close connection in the slope can be identified. It is found that the community with severe deformation have at least 5% more displacement and up to 21% more displacement than that with slow deformation. In addition, the location of leader nodes can be identified, and the number of leader nodes does not exceed 20% of the total nodes in the community, and its average displacement is at least 10% more than that of ordinary nodes, up to 36%. After the community detection result is superimposed with the zoning map of slope grade, it can be concluded that the slope grade within the community with severe deformation is greater than 60°, indicating that the larger slope grade is more sensitive to the bank slope deformation.

show abstract

“…However, a number of natural hazardous occur in recent years in relation to the reverse-dip slope (Aydan and Kawamoto, 1992;Huang, 2007;Martino et al, 2020). Many scholars increasingly analysis the failure mechanism of topping deformation of the reverse-dip slope (Eberhardt, 2008;Lian et al, 2017;Xie et al, 2018;Gschwind et al, 2019;Lh et al, 2020;Zhang et al, 2020;Ye et al, 2021). Terzaghi and Peck (1957) described the toppling deformation and failure characteristics of reverse-dip slopes from the perspective of engineering geology.…”

Section: Introductionmentioning

confidence: 99%

Displacement evolution of reverse-dip rock slope considering the change of the reservoir level

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper investigates the toppling deformation characteristics of the displacement evolution in different portions for a reverse-dip rock slope, through a case study of Xiaodongcao slope in Chongqing city, China. Firstly, the elevation, slope angle, and aspect were obtained by the eld survey, and then they were adopted in the partitioning process related to geological and geometrical conditions by the ArcGIS packages. Secondly, the spatiotemporal cloud map of the displacement was obtained by discrete monitoring data of surface displacement of the slope. Finally, the topping deformation was determined by superposing the cloud map of the displacement and the geometrical partition, considering the change of the reservoir level. The main ndings are summarized as follows: (1) the horizontal displacement is close to the total one, meaning that the slope topping deformation is mainly in the horizontal orientation.(2) In the front and middle edges of the slope, the horizontal displacement is pronounced, which increases with the increase of the reservoir level and vice versa. The vertical displacement mainly occurs in the trailing of the slope, which increases when the reservoir level changes. (3) The area in relation to the strong superposed displacement increases with the variation of the reservoir level. The largest area of superposed displacement is distributed at medium gradient, low elevation and north aspect zones.

show abstract

Study on evolutionary characteristics of toppling deformation of reverse-dip layered rock slope based on surface displacement monitoring data

Cited by 15 publications

References 15 publications

An Optimization of the Analytical Method for Determining the Flexural Toppling Failure Plane

An Optimization of the Analytical Method for Determining the Flexural Toppling Failure Plane

Analysis of Deformation Characteristics of Reverse Slope Under The Influence of Reservoir Water Based On Community Detection

Displacement evolution of reverse-dip rock slope considering the change of the reservoir level

Contact Info

Product

Resources

About