Seismic response analysis of a bedding rock slope based on the time-frequency joint analysis method: a case study from the middle reach of the Jinsha River, China

Song, Danqing; Chen, Zhuo; Ke, Yutian; Nie, Wen

doi:10.1016/j.enggeo.2020.105731

Cited by 61 publications

(22 citation statements)

References 35 publications

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“…The P-wave velocity cannot fully reflect the strength characteristics of the rock and soil mass (Song et al 2019;Wang et al 2019); thus, the two-dimensional relationship between the S-wave velocity (Vs) and P-wave velocity (Vp)-which can accurately connect the curing age and dry density with the wave velocity-should be an area of focus. The ratio Vp/Vs reflects the relative amplitude of the shear and compression (Ding and Yu 2006;Song et al 2020aSong et al ,2020b. The relationship between the Vp and Vs of MSWIBA samples with different curing ages and dry densities is shown in Table 2; it is seen to vary within a specific range.…”

Section: Application Of Wave Velocity In the Strength Measurementmentioning

confidence: 98%

Experimental study on the strength behaviors of municipal solid waste incineration bottom ash using ultrasonic wave velocity tests

Xiang

Song

2020

Geomatics, Natural Hazards and Risk

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To investigate the physico-mechanical properties of municipal solid waste incineration bottom ash (MSWIBA), the factors influencing the strength characteristics of MSWIBA were studied using an ultrasonic wave velocity test, to investigate its physico-mechanical properties. The test results show that the curing age, dry density, temperature, particle size, moisture content, and soaking time in water affect the strength of MSWIBA. The analyses of the wave velocity suggest that the strength of MSWIBA increases with its curing age and dry density. The strength increases rapidly over a curing age of 3-7 days but increases slowly after 14 days. In addition, the strength increases under an increase in temperature within the range of 20-50 C, and it tends to stabilize above 50 C. Moreover, the moisture content and particle size have a significant effect on the strength. MSWIBA, with a particle size of 0-2 mm, exhibits the greatest strength, and its strength is maximal at the optimum moisture content (15%). The soaking time in water has an adverse impact on the strength of MSWIBA during the first 80 h, decreasing its strength by approximately 5%. Moreover, the Poisson's ratio of MSWIBA is determined using wave velocity ratios from elastic theory.

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Section: Application Of Wave Velocity In the Strength Measurementmentioning

confidence: 98%

Experimental study on the strength behaviors of municipal solid waste incineration bottom ash using ultrasonic wave velocity tests

Xiang

Song

2020

Geomatics, Natural Hazards and Risk

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“…In the same way, the deformation of the surface slope for the most part between high and low water levels was influenced by rapid water drawdown [14]. In addition, this seismic response between the slipping mass and slip bed of the rock is the main triggering factor of landslide [15].…”

Section: Introductionmentioning

confidence: 96%

Stability analysis of rock slope along selected road sections from Gutane Migiru town to Fincha sugar factory, Oromiya, Ethiopia

Lamessa

Meten

2021

SN Appl. Sci.

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The slope instability was one of the common problems along the road that connects Gutane Migiru town to Fincha sugar factory, Western Ethiopia. The effect of the problem was intense mostly; during the rainy season, that triggers different modes of rock slope failure. As a result, the road was frequently damaged and blocked by the failed rock that in turn hinders the traffic activities. Thus, this study aimed at stability analyses of the critical slope sections using kinematic and limit equilibrium methods (LEM). The estimation of the most important input parameter in LEM analyses like cohesion and friction angle along the failure plane is often intricate and cumbersome. Hence, this paper used Rocscience software to effortlessly and instantly compute cohesion and friction angle along specific failure planes and then to carry out kinematic and LEM analyses. Besides, the strength of the intact rock was determined by the Schmidt hammer in the field and point load laboratory test. According to the kinematic analysis result, the wedge mode of rock slope failure occurred at slope sections D1S2 and D1S3 though the planar mode of failure occurred at slope sections D1S4 and D4S1. The factor of safety determined under all anticipated conditions became less than and greater than one at slope sections D1S2, D1S3, D1S4, and D4S1, and this depicts an unstable and stable slope, respectively. From the analysis result, the combined effect of rainfall, steepness of the slope dip, and joint set was the main factors that caused the slope insatiability.

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“…Liu et al [26] investigated the dynamic stability of a mining slope in an open-pit coal mine under blasting load using numerical method and field monitoring method. erefore, numerical calculation and field monitoring methods have become the common methods for the study of slope stability; especially the combination of the two can make the research results more reliable [27][28][29]. However, there are few systematic studies on the settlement and deformation of the waste dump, especially on the postconstruction settlement and deformation of the fill bulk, and the corresponding calculation methods are not mature.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Deformation Law of Inner Waste Dump Slope in an Open‐Pit Coal Mine: A Case Study in Southeast Inner Mongolia of China

Cao

Wang

Song

et al. 2021

Advances in Civil Engineering

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The settlement and deformation of an open-pit mine waste dump were investigated by using field monitoring and numerical methods. The creep parameters of fine soil sand in the dump fill were inverted using the steady Burgers creep model, and FLAC3D software was used to simulate the dumping soil construction and development program. The results show that the settlement displacement of the dump increases with the time of dumping soil and tends to be stable after 4 years. In the creep attenuation stage of the creep process, there is a big difference between the numerical calculation and the field monitoring results in the inversion process of fine-grained soil sand parameters. In the steady-state creep stage, the numerical calculation is consistent with the field monitoring value. The height of the fill has an influence on the settlement of the fill body of the dump and the time to reach the stability. The higher the filling height is, the greater the postconstruction settlement will be, and the longer it will take to reach stability. The pushing position of the fill body has a great influence on the settlement displacement of the dump. The time and efficiency of soil discharge can be shortened by optimizing the safe distance between the filling body and the river. Based on the numerical calculation results and the empirical settlement function, an analytical method for river channel location selection of internal dump is proposed.

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Seismic response analysis of a bedding rock slope based on the time-frequency joint analysis method: a case study from the middle reach of the Jinsha River, China

Cited by 61 publications

References 35 publications

Experimental study on the strength behaviors of municipal solid waste incineration bottom ash using ultrasonic wave velocity tests

Experimental study on the strength behaviors of municipal solid waste incineration bottom ash using ultrasonic wave velocity tests

Stability analysis of rock slope along selected road sections from Gutane Migiru town to Fincha sugar factory, Oromiya, Ethiopia

Investigation on the Deformation Law of Inner Waste Dump Slope in an Open‐Pit Coal Mine: A Case Study in Southeast Inner Mongolia of China

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