Assessment of rock slope stability with the effects of weathering and excavation by comparing deterministic methods and slope stability probability classification (SSPC)

Ersöz, Timur; Topal, Tamer

doi:10.1007/s12665-018-7728-4

Cited by 24 publications

(11 citation statements)

References 14 publications

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“…Here, Rl is a the large-scale roughness, Rs is the small-scale roughness, and Im and Ka are the factors of infill and karst, respectively. Considering weathering degree correction, TC of the reference rock mass named RTC is defined by equation (5).…”

Section: Calculation Of the Shear Strength Parameters Of The Rrmmentioning

confidence: 99%

“…In the SSPC system, the weighted discontinuity condition CD is calculated by equation (5). Here, DS represents the discontinuity spacing.…”

Section: Calculation Of the Shear Strength Parameters Of The Rrmmentioning

confidence: 99%

“…In recent years, the heights of cutting rock slopes can be as high as 300-500 m. For instance, the maximum cutting slope height at the Dagangshan project located in the Dadu River is 530 m, and the maximum cutting slope height at the Xiaowan project located in the Lancang River is 700 m [4]. Cutting slopes are prone to fail due to the disturbance on original geometry and strength [5], and assessing the stability of these rock slopes is an important and difficult task, due to ensure slope safety in period of construction and running.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, slope rock mass and exposure rock mass are always not distinctly differentiated in the existing approach [14]. To overcome the limitations previously, Hack (1998) [15] presented a new rock slope stability assessment approach (SSPC, slope stability probability classification), which has been used worldwide, especially in the research of road slopes in Spain [16], New Zealand, India [17], and Turkey [5,6,14] with good results. As a matter of fact, the method is generally suitable for slopes with a height of less than or equal to 45 m. Moreover, discontinuity property survey, weathering degree, and intact rock strength estimation involve high subjectivity and arbitrariness [14,17,18].…”

Section: Introductionmentioning

confidence: 99%

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Stability Assessment of High and Steep Cutting Rock Slopes with the SSPC Method

Tao

Meng³

et al. 2021

Advances in Civil Engineering

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The stability of high rock slopes has become a key engineering geological problem in the construction of important projects in mountainous areas. The original slope stability probability classification (SSPC) system, presented by Hack, has made obvious progress and been widely used in rock slope stability analysis. However, the selection and determination of some evaluation indexes in the original SSPC method are usually subjective, such as intact rock strength and weathering degree. In this study, the SSPC method based on geological data obtained in the prospecting tunnels was presented and applied. According to the field survey and exploration of the prospecting tunnels, the weathering degree of the slope rock mass was evaluated. The empirical equation for the maximum stable height of the slope was applied to the slope stability evaluation in the presented SSPC method. Then, the slope stability probability of numerous cutting slopes in the sandstone unit was evaluated using the presented system. Results of the Geostudio software based on the limited equilibrium analysis of the investigated slopes were compared with the results obtained by the SSPC method. The results indicate that the SSPC method is a useful tool for the stability prediction of high and steep rock slopes.

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Section: Calculation Of the Shear Strength Parameters Of The Rrmmentioning

confidence: 99%

“…In the SSPC system, the weighted discontinuity condition CD is calculated by equation (5). Here, DS represents the discontinuity spacing.…”

Section: Calculation Of the Shear Strength Parameters Of The Rrmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stability Assessment of High and Steep Cutting Rock Slopes with the SSPC Method

Tao

Meng³

et al. 2021

Advances in Civil Engineering

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“…Chen (2018) proposed a slope stability analysis method based on the Coupled Eulerian-Lagrangian (CEL) numerical strategy with an energy based criterion. Ersoz (2018) used slope stability probability classification method to evaluate 20 road cuts located in North West Black Sea region of Turkey. Kundu (2018) utilized limit equilibrium method and finite element method under static conditions to analyze the slope stability.…”

Section: Introductionmentioning

confidence: 99%

Dangerous Zoning and Stability Assessment of Slopes at Antaibao Open Pit Coal Mine in China

Tao

LIU²,

Yang

et al. 2020

Preprint

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With the depletion of shallow coal resources in China, the depths and scales of mining have increased. For several coal mines, the extraction has changed from open-pit to underground. Due to open-pit and underground mining disturbance, landslide disasters frequently occur at high and steep slopes of open-pit mines. The effective identification of danger zone of slope and accurate determination of corresponding stability is important in the field of geotechnical engineering. Herein, Antaibao open-pit coal mine was employed as the research object. Firstly, as per the composition and structural characteristics of on-site slope rock mass, six typical disaster factors were summarized, while the assignment criteria for discrete and continuous variables were divided according to the landslide body characteristics and spatiotemporal distribution. Thereafter, based on the comprehensive evaluation principle of fuzzy mathematics, high and steep side stability in the multi-factor influence regions was comprehensively evaluated, while the spatial division of the unstable region was determined. Finally, the slope potential slip surface in the unstable zone of the western side was utilized as the calculation model object, and sensitivity analysis of the slope impact factor was conducted using the MSARMA method. Therefore, the earthquake as well as drainage rate (groundwater dynamics) were determined as the sensitivity factors. The numerical simulation of FLAC3D finite difference method was performed to analyze the evolution law of displacement field under natural, seepage, and vibrational conditions of the northwest slope.

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