Background of recent developments of passenger railways in China, the UK and other European countries

Smith, R.A.; Zhou, Ji

doi:10.1631/jzus.a1400295

Cited by 17 publications

(10 citation statements)

References 23 publications

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“…High speed rail is vital for the development of the passenger railway, because of its huge transport capacity, safety, comfort, all-day operation, environmentallyfriendly operation, and its sustainability. Since 2004, the former China Ministry of Railways has introduced and assimilated advanced foreign technologies, and used this to improve the technologies of the construction of the high speed rail and train, and formed a nationwide cross-industry chain (Smith and Zhou, 2014).…”

Section: Overviewmentioning

confidence: 99%

Sustainability development strategy of China’s high speed rail

Tan

Zhou

et al. 2016

J. Zhejiang Univ. Sci. A

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Section: Overviewmentioning

confidence: 99%

Sustainability development strategy of China’s high speed rail

Tan

Zhou

et al. 2016

J. Zhejiang Univ. Sci. A

Self Cite

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“…High-speed railways play an important role in the fast connection among cities and promote the local economy's sustainable development (Chen and Whalley, 2012;Smith and Zhou, 2014;Tan et al, 2016). Although the high-speed railway in China was not constructed as early as in Japan, France, and other European countries, it has been fast developed with the rapid economic development in China (Yin et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Model test study on the dynamic response of high-speed railway subgrade crossing ground fissure zone

et al. 2023

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Ground fissure is a typical geohazard widely developed in China, which brings serious geological challenges to the construction and safe operation of the Chinese high-speed railways. However, the dynamic response mechanism of high-speed railway natural subgrade crossing the ground fissure zone is unclear. In this study, a new trainload excitation equipment that can simulate moving train loads was developed. The model test was carried out on the dynamic responses of the natural subgrade of high-speed railway crossing ground fissure zone under moving train loads. The results show that the ground fissure had a great influence on the acceleration response of the subgrade across the ground fissure zone, and the average peak acceleration value of the subgrade in the hanging wall was greater than the footwall. Along the longitudinal direction of the railway, the dynamic Earth pressure of the subgrade in the hanging wall was significantly greater than that in the footwall of the ground fissure and is about 2.5 times than that in the footwall, demonstrating a typical hanging wall amplification effect. The displacement amplitude on the subgrade and ground surface in the hanging wall was larger than that in the footwall of ground fissure. The attenuation rate of peak acceleration, dynamic velocity, and displacement in the hanging wall along the depth direction was more evident than that of the footwall of ground fissure. For the natural subgrade of high-speed railway crossing ground fissure zone, the critical influence depth of moving train load was about 12 m below the subgrade surface.

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“…With increasing train speeds and axle loads of high-speed trains in China, railroad subgrade is required to have higher strength, stiffness, stability and uniformity. In order to meet these requirements, the main technical measure is that the compaction of railroad subgrade has successful quality control and quality assurance [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…In exploring the transmission and evolution characteristics of the vibration signal, two approaches have been used: (1) analyses were performed in the time domain, but only vibration time-history responses were obtained [8,[22][23][24]; (2) analyses were performed in the frequency, but only Fourier spectrums and energy spectrums are obtained [25][26][27][28][29]. However, the vibration wave is a complicated nonlinear non-stationary signal and its vibration frequency and amplitude are constantly changing in the compaction progress.…”

Section: Introductionmentioning

confidence: 99%

Study on the Transmission and Evolution Characteristics of Vibration Wave from Vibratory Roller to Filling Materials Based on the Field Test

et al. 2020

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Compaction quality of railroad subgrade relates directly to the stability and safety of train operation, and the core problem of the Intelligent Compaction of railroads is the transmission and evolution characteristics of vibration wave. Aiming at the shortages in exploring the transmission and evolution characteristics of the vibration signal, the typical subgrade compaction project of Jingxiong Intercity Railway Gu’an Station was selected to carry out the field prototypes tests, and the dynamic response from the vibratory roller to filling materials was monitored in the whole compaction process, and some efficient field tests data will be obtained. Based on this, the transmission and evolution characteristics of the vibration wave from the vibratory roller to filling materials in the compaction process are studied from the time domain, frequency domain, jointed time–frequency domain and energy domain by using one new signal analysis technology—Hilbert–Huang Transform. Some conclusions are shown as follows: first, the vibration acceleration peak gradually decreases with the increase of buried depth, and when the buried depth reaches 1.8 m, the vibration acceleration peak is closed to zero. At the same time, when the vibration wave propagates from the wheel to the surface of filling, the attenuation rate of acceleration gradually increases with the increase of rolling compaction times, while the attenuation rate of other layers in different buried depths gradually decreases. Second, the vibration wave contains fundamental wave and multiple harmonics, and the dominant frequency of the fundamental wave is nearly 21 Hz. With the increase of buried depth, the amplitude of fundamental, primary, secondary, until fifth harmonics decreases exponentially and the concrete functional relationship among different amplitudes of harmonics can be summarized as y = Ae−BX. Third, the vibration energy focuses on the fundamental wave and primary wave, which can increase with the increase of rolling compaction times, and when the rolling compaction time reaches five, their energy reaches maximum. However, when the filling reaches a dense situation, the energy of the primary wave gradually decreases. Therefore, the maximum rolling compaction time is five in the practical engineering applications, which will be helpful for optimizing the compaction quality control models and providing some support for the development of the Intelligent Compaction theory of railway subgrade.

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Background of recent developments of passenger railways in China, the UK and other European countries

Cited by 17 publications

References 23 publications

Sustainability development strategy of China’s high speed rail

Sustainability development strategy of China’s high speed rail

Model test study on the dynamic response of high-speed railway subgrade crossing ground fissure zone

Study on the Transmission and Evolution Characteristics of Vibration Wave from Vibratory Roller to Filling Materials Based on the Field Test

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