Failure mode and dynamic response of a double-sided slope with high water content of soil

Yang, Bing; Gao, Fu‐Ping; Jeng, Dong‐Sheng

doi:10.1007/s11629-017-4616-4

Cited by 15 publications

(6 citation statements)

References 18 publications

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“…e landslide caused by earthquakes is a common natural disaster in mountain areas [1][2][3]. ousands of geological disasters have been triggered by the Wenchuan earthquake (M S � 8.0) in western Sichuan, China, most of which (more than 60,000) were landslides [1,4]. ere are dozens of largescale landslides (>ten million m 3 ) and more than 100 landslides with an area of more than 50,000 m 2 [1,4].…”

Section: Introductionmentioning

confidence: 99%

“…ousands of geological disasters have been triggered by the Wenchuan earthquake (M S � 8.0) in western Sichuan, China, most of which (more than 60,000) were landslides [1,4]. ere are dozens of largescale landslides (>ten million m 3 ) and more than 100 landslides with an area of more than 50,000 m 2 [1,4]. e landslide triggered by earthquakes is easy to cause a large number of casualties and economic loss.…”

Section: Introductionmentioning

confidence: 99%

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Failure Characteristics and Mechanism of Multiface Slopes under Earthquake Load Based on PFC Method

Yang

Rao

Chen

et al. 2021

Shock and Vibration

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Understanding the failure mechanism and failure modes of multiface slopes in the Wenchuan earthquake can provide a scientific guideline for the slope seismic design. In this paper, the two-dimensional particle flow code (PFC2D) and shaking table tests are used to study the failure mechanism of multiface slopes. The results show that the failure modes of slopes with different moisture content are different under seismic loads. The failure modes of slopes with the moisture content of 5%, 8%, and 12% are shattering-shallow slip, tension-shear slip, and shattering-collapse slip, respectively. The failure mechanism of slopes with different water content is different. In the initial stage of vibration, the slope with 5% moisture content produces tensile cracks on the upper surface of the slope; local shear slip occurs at the foot of the slope and develops rapidly; however, a tensile failure finally occurs. In the slope with 8% moisture content, local shear cracks first develop and then are connected into the slip plane, leading to the formation of the unstable slope. A fracture network first forms in the slope with 12% moisture content under the shear action; uneven dislocation then occurs in the slope during vibration; the whole instability failure finally occurs. In the case of low moisture content, the tensile crack plays a leading role in the failure of the slope. But the influence of shear failure becomes greater with the increase of the moisture content.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Failure Characteristics and Mechanism of Multiface Slopes under Earthquake Load Based on PFC Method

Yang

Rao

Chen

et al. 2021

Shock and Vibration

Self Cite

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“…e weak interlayer is often the controlling factor for the slope instability [11]. Under the action of ground motion, a slope with a weak interlayer will exhibit several different response characteristics compared to a homogeneous slope [12,13]. To date, various researchers have studied the seismic response of the slope with a weak interlayer.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response and Failure Characteristics of Slope with Weak Interlayer under Action of Near‐Fault Ground Motion

Yang

Hou

Liu

et al. 2021

Shock and Vibration

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Investigations into the Wenchuan earthquake (2008, China) demonstrated that landslides were concentrated in the near-fault areas, and numerous large-scale landslides occurred in slopes with weak interlayers. A mathematical model was established based on the shear beam theory, while a numerical model was developed based on the discrete element method which perfectly matched layer boundary theory. Through a theoretical analysis and numerical simulation, the dynamic response and failure modes of the slope with a weak interlayer under the near-fault ground motion were studied. It was found that a combined effect took place between the near-fault ground motion and the weak interlayer, causing the slope near a fault to be destroyed more easily. The coupling between the near-fault ground motion and the weak interlayer leads to a maximum amplification effect of the slope. The existence of a weak interlayer induces nonconforming vibration between the upper and the lower rock masses of the interlayer. The variation in the amplification effect along the slope elevation is related to the ratio of the input seismic period to the natural slope period. Under horizontal ground motion, weak interlayers will be subjected to impacting and shearing action. The failure mode of the slope with a weak interlayer under near-fault ground motion can be expressed as a trailing edge tension crack, as well as weak interlayer impacting and shearing failure.

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“…Low-carbon m & a is a new mode of merger and acquisition under the ecological civilization education (Tian, 2017;Dali and Kamarudin, 2018). The historical assessment and future prediction of ecological security (Yang et al, 2018a) and the study on the establishment of safety factor system model for the construction of water ecological civilization (Zhang, 2017;Baharuddin and Samsudin, 2018) are also very important. Regional landscape-ecological studies have acquired a special topicality as they assure efficient environmental conservation and sustainable use of natural resources.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Ecological Civilization in Megacities

Zhao¹

2019

Appl. Ecol. Env. Res.

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General Secretary Xi Jinping clearly pointed out in the report of the Nineteenth Party Congress that speeding up the reform of ecological civilization system and building ecological civilization are the millennium plan for the sustainable development of the Chinese nation. The ecological problems of mega-cities are related to the sustainable development of economy and society. Because the radiation area of mega-cities is relatively wide, the geographical environment of various city regions is different, and so is the functional orientation, the selection of evaluation criteria and evaluation indicators is particularly important in the evaluation process. Based on the perspective of mega-city functional areas and combining it with the urban development planning of Beijing, this paper discusses the evaluation of ecological civilization in mega-cities, constructs the evaluation index system of ecological civilization index, and uses the coefficient of variation method of objective empowerment method to determine the index weight, and evaluates the ecological civilization of each functional area in Beijing from three aspects: growth quality, ecological protection and air quality. It can be concluded that the index of ecological civilization in Beijing shows an upward trend as a whole, each functional area presents different characteristics, and the implementation of policies has a significant impact on the construction and development of ecological civilization.

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Failure mode and dynamic response of a double-sided slope with high water content of soil

Cited by 15 publications

References 18 publications

Failure Characteristics and Mechanism of Multiface Slopes under Earthquake Load Based on PFC Method

Failure Characteristics and Mechanism of Multiface Slopes under Earthquake Load Based on PFC Method

Dynamic Response and Failure Characteristics of Slope with Weak Interlayer under Action of Near‐Fault Ground Motion

Evaluation of Ecological Civilization in Megacities

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