Analysis of dynamic compressive stress induced by passing trains in permafrost subgrade along Qinghai–Tibet Railway

Zhu, Zhanyuan; Ling, Xianzhang; Chen, Shijun; Zhang, Feng; Wang, Ziyu; Wang, Lina; Zou, Zuyin

doi:10.1016/j.coldregions.2010.10.011

Cited by 25 publications

(9 citation statements)

References 12 publications

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“…To achieve this, the assessment and prediction of ground vibration caused by passing trains was made (Picoux, Houédec 2005). The dynamic pressure caused by a passing train on the railway embankment Qinghai-Tibet with the ground in the frozen condition was investigated in (Zhu et al 2011). Now, when the prices of oil, electricity and gas are growing, the ways of reducing expenses should be sought.…”

Section: Introductionmentioning

confidence: 99%

The Model of Evaluating the Criteria, Describing the Quality of Organization and Technology of Travel by International Train

et al. 2012

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The significance of the criteria describing various aspects of travel by train, e.g. passenger transportation comfort, safety, travel time, price of a journey, etc., differs considerably. The quality of particular trains, track sections and staff performance can be successfully evaluated by a single number, using the comprehensive quality index (CQI). The paper offers an additive model to calculate the normalized weight coefficients of particular criteria for CQI calculation. A multi-criteria mathematical model, which may be used for evaluating the significance of the criteria describing organization and technology of travel by train for determining its quality, is also presented. Based on the nineteen adopted criteria (the criteria of group B), reflecting the organization and technology of travel by train, the quantitative estimate K B is obtained. Case studies of calculating the comprehensive quality index K B , describing the organization and technology of travel by the train 'Vilnius-Moscow' , which show the real quality of these processes, are presented. Finally, the conclusions based on the research results are provided.

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Section: Introductionmentioning

confidence: 99%

The Model of Evaluating the Criteria, Describing the Quality of Organization and Technology of Travel by International Train

et al. 2012

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“…Recently, more and more linear infrastructures were built or will be built in frozen regions due to the development of economy, such as Qinghai-Tibet Railway, Qiqihar-HarbinDalian High Speed Railway and so on. The traffic stimulation and the dynamic behaviors of frozen soil strongly influence the stress state, deformation and strength of substructure [2,3], and threaten the stability of infrastructures.…”

Section: Introductionmentioning

confidence: 99%

Dynamic shear modulus and damping ratio of frozen compacted sand subjected to freeze–thaw cycle under multi-stage cyclic loading

Xue

Zhang

et al. 2015

Soil Dynamics and Earthquake Engineering

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“…Other researchers considered traffic capacity (Ramunas et al 2011) and the reliability factor of railways (Ivnitsky, Polyakova 2011). The formula for determining the dynamic coefficient, which may serve as a technical basis for designing and assessing the bridges included in the urban railway system, was offered (He et al 2011), and the dynamic pressure caused by a train running over the Qinghai-Tibet railway embankment located in a permafrost area was investigated (Zhu et al 2011). A set of programmes most suitable for ensuring railway track safety (Vale et al 2012) and the models for maintaining the railway and the ballast (Burrow et al 2009;Sevi, Ge 2012;Lobo-Guerrero, Vallejo 2006) were offered.…”

Section: Introductionmentioning

confidence: 99%

The Model for Evaluating the Criteria Describing the Quality of the Trip by International Train

Maskeliūnaitė

Sivilevičius

2014

Technological and Economic Development of Economy

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The quality of multifaceted objects or phenomena can be hardly described or evaluated by a single criterion. The quality of the trip by train is described by a set of quantitative and qualitative criteria. The influence of all the criteria on the trip by international train may be evaluated by a comprehensive quality index (CQI) or quality index K. An additive model is offered for calculating CQI, which consists of the average weights of the criterion groups, as well as normalized weights and variables of the criteria, showing the correspondence of the real value of each criterion to the best, critical or allowable value. A mathematical model, which may be used for determining the quality of the trip by train based on the criteria describing the elements of the train and technical state of the railway track is also presented. Based on the use of 16 criteria describing the elements of the train and the parameters and the technical state of the railway track, the quantitative estimate K A (multiple criteria index) is obtained. The suggested model and the techniques used in the work may be applied to determining the quality or effectiveness of other objects or processes, which can be described by sets of criteria.

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Analysis of dynamic compressive stress induced by passing trains in permafrost subgrade along Qinghai–Tibet Railway

Cited by 25 publications

References 12 publications

The Model of Evaluating the Criteria, Describing the Quality of Organization and Technology of Travel by International Train

The Model of Evaluating the Criteria, Describing the Quality of Organization and Technology of Travel by International Train

Dynamic shear modulus and damping ratio of frozen compacted sand subjected to freeze–thaw cycle under multi-stage cyclic loading

The Model for Evaluating the Criteria Describing the Quality of the Trip by International Train

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