Ground vibration analysis under combined seismic and high-speed train loads

Xie, Wei; Gao, Guanghai; Song, Jian; Wang, Yu

doi:10.1016/j.undsp.2021.10.001

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…However, due to the limitations of indoor test conditions, the simulated test may be different from the situation. e authors will simulate the actual situation more realistically in future studies [16].…”

Section: Discussionmentioning

confidence: 99%

“…Under the action of vibration load and stress, the primary pores, crack propagation, and fracture of carbonate rocks will change the permeability, and the carbonate rocks show different characteristics in different stress-strain stages. Xie et al [16] studied the ground vibration under the coupling action of earthquake and high-speed trains. e coupling of the two will increase the dynamic displacement of the ground.…”

Section: Introductionmentioning

confidence: 99%

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A Digital Assessment Method for Multisource Influence Factors on Corrosion Characteristics in the Karst Areas

Liu

2022

Mathematical Problems in Engineering

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Taking dolomite and limestone in Guilin and Liuzhou regions in the north of Guangxi Province as research objects, this paper analyzed their mineral composition and chemical composition and proposed a digital assessment method for multi-source factors on corrosion characteristics in the Karst areas. Specifically, the chemical corrosion test, the corrosion test under the chemical-temperature actions, and the corrosion test under the action of vibration load are carried out from the digital view, respectively. Four aspects can be found in digital assessment results. Firstly, the dolomite in northern Guangxi mainly has a fine crystalline texture and a massive structure with low content of acid-insoluble matters, while limestone mainly has a powder crystalline texture and a massive structure with high content of acid-insoluble matters, and the purity of both dolomite and limestone are very high. Secondly, the difference of corrosion between dolomite and limestone mainly depends on the ratio of CaO/MgO in their chemical composition and the content of silica and acid insoluble matters. Thirdly, the corrosion rates of pure dolomite and pure limestone are basically the same under the same external conditions. Finally, temperature and vibration load have a relatively large influence on the corrosion rates of dolomite and limestone, and the corrosion rates of dolomite and limestone increase with the increase of temperature, but the influence of vibration load on the corrosion rate is more significant than temperature. This research can provide theoretical basis and technical support for large-scale engineering construction and prevention of karst geologic disasters in karst stone mountainous areas in northern Guangxi.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%