scholarly journals Research on Observation of Settlement Deformation of Zhengzhou-Jinan High-speed Railway and Information Platform of Observation Data

2021 ◽  
Vol 283 ◽  
pp. 02012
Author(s):  
Ni Xiuyong
Keyword(s):  
High Speed ◽  
Future Research ◽  
Observation Data ◽  
High Speed Railway ◽  
Information Platform ◽  
Engineering Construction ◽  
Data Support ◽  
The Future

In order to provide data support for engineering construction, this paper proposes to study the construction of information platform of settlement deformation observation data. In this paper, the information platform for observation data is established based on the settlement deformation data of Zhengzhou-Jinan high-speed railway. The results show that the settlement deformation observation platform in this paper can effectively integrate the data and ensure the accuracy of the data. This paper sets an example for the future research on the construction of information platform of high-speed railway settlement.

Research and Application of Intelligent Humanoid Robot

2010 ◽  
Vol 44-47 ◽  
pp. 456-460
Author(s):  
Tong Li ◽  
Bin Hu
Keyword(s):  
Research And Development ◽  
High Speed ◽  
Humanoid Robot ◽  
Science And Technology ◽  
Future Research ◽  
The World ◽  
The Future

With the high-speed development of science and technology, the research and application of the humanoid robot receive more and more attention in the field of intelligent robot.Firstly, the important characters of the humanoid robot are introduced in this paper.Then the architecture of the human robot is analyzed and the research works around the world are overviewed.At last, the prospects for the future research and development are described.

scholarly journals Design theories and maintenance technologies of slab tracks for high-speed railways in China: a review

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Juanjuan Ren ◽  
Shijie Deng ◽  
Kaiyao Zhang ◽  
Wei Du ◽  
Qinghong Wu
Keyword(s):  
High Speed ◽  
Field Tests ◽  
Research Trend ◽  
Future Research ◽  
Stable Operation ◽  
High Speed Railway ◽  
Slab Track ◽  
Design Theories ◽  
Future Direction

Abstract The durability and reliability of slab track structures are essential for the long-term safety and stable operation of high-speed railways. In order to provide a solid theoretical basis and technical reference for the advancement of high-speed railway quality, this paper comprehensively discusses design theories of slab track structures, service performance evolution and maintenance technologies, and reviews the innovation happening in the industry. On top of that, the damage evolution, fatigue features and durability of slab tracks, which are highly relevant to serviceability, are summarized, and the future research trend of slab track service behaviours is pointed out. In addition, this paper summarizes the rules of establishing standards for damage maintenance, typical solutions for repairing damage and methods of evaluating the maintenance outcomes that combine field tests and numerical simulations. It also envisions a future direction where advanced testing technologies would assist the evaluation of maintenance effects.

scholarly journals Tourists Forecast Lanzhou Based on the Baolan High-Speed Railway by the Arima Model

2020 ◽  
Vol 5 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Lijun Li ◽  
Yaru Wang ◽  
Xiaoyue Li
Keyword(s):  
Relative Error ◽  
High Speed ◽  
Arima Model ◽  
Average Relative Error ◽  
High Speed Railway ◽  
The Future

AbstractAccording to the analysis from the number of tourists who went to Lanzhou during 2009–2019, the ARIMA model of the number of tourists to Lanzhou was established. The results show that the AR(3) model is used to predict the number of tourists who traveled to Lanzhou during 2009–2019. The average relative error between the predicted value and the actual value is 1.03%, which can be used to predict and analyze the number of tourists in Lanzhou in the future.

An Observation and Analysis of Passenger Dedicated Line Subgrade in Coastal Soft Soil Zone

2013 ◽  
Vol 353-356 ◽  
pp. 467-472 ◽  
Author(s):  
Yi Ling Yang ◽  
Long Cai Yang
Keyword(s):  
High Speed ◽  
Soft Soil ◽  
Railway Track ◽  
Observation Data ◽  
Critical Height ◽  
High Speed Railway ◽  
Soil Subsidence ◽  
Soil Zone ◽  
Railway Passenger ◽  
Passenger Dedicated Line

Nanjing-Hangzhou Railway Passenger Dedicated Line is a high-speed railway of the speed 350 km/h in coastal soft area without railway track ballast. The settlement of soft foundation is quite great and the strict control standards of the settlement after construction of the high-speed railway that the settlement observation in construction phase is very strict. Through the settlement observation data analysis of Nanjing-Hangzhou Railway Passenger Dedicated Line on-site, the author found that the preloading can rapidly accelerate the settlement of the soft soil subsidence, the settlement is quite great during the embankment construction and the later three months, there is a preloading critical height, the foundation generally does not rebound when load was removed, the settlement trends are consistent with the three-point analysis. These conclusions are certain referential significance for the settlement control of the coastal soft soil area of high-speed passenger dedicated .

scholarly journals Application of the Expanded Theory of Planned Behavior in Intercity Travel Behavior

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Jing Peng ◽  
Juan Zhi-cai ◽  
Gao Lin-jie
Keyword(s):  
Theory Of Planned Behavior ◽  
Planned Behavior ◽  
Metropolitan Area ◽  
Travel Behavior ◽  
Latent Variables ◽  
High Speed ◽  
Future Research ◽  
High Speed Railway ◽  
Investment Projects ◽  
Intercity Travel

Congestion in intercity corridors of metropolitan area has been increasing steadily. To alleviate congestion, many major investment projects, such as the high speed railway projects, were proposed by agency. To evaluate the adequacy and efficiency of these projects, the intercity travel behavior should be analyzed in metropolitan area. The paper constructed a Multiple Indicators and Multiple Causes (MIMIC) model according to an expanded theory of planned behavior (TPB) to study the travel behavior of choosing from the choice set of the traditional train, the high speed railway and the coach by demographic and psychological factors. Through empirical data collection and analysis, we found that demographic factors of travelers indeed positively engender the latent variables in MIMIC, and descriptive norm and habit had direct or indirect significant effect on travel behavior and intention. On the basis of the effect of psychological constructors of the expanded TPB on the intercity travel behavior and differentiation of traveler's demographic characteristics, the agency can make reasonable policies and proper information for the intercity transportation. The results will support the basic theory of optimizing the transportation system in metropolitan area. Implications for researchers and suggestions for future research are also addressed in this study.

scholarly journals Dynamic Simulation Method of High-Speed Railway Engineering Construction Processes Based on Virtual Geographic Environment

2020 ◽  
Vol 9 (5) ◽  
pp. 292
Author(s):  
Xinwen Ning ◽  
Qing Zhu ◽  
Heng Zhang ◽  
Changjin Wang ◽  
Zujie Han ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
High Speed ◽  
Simulation Method ◽  
3D Models ◽  
Scientific Basis ◽  
Construction Equipment ◽  
High Speed Railway ◽  
Engineering Construction ◽  
Virtual Geographic Environment ◽  
Geographic Environment

The spatial conflicts in the construction of high-speed railways not only reduce project efficiency, but also lead to serious accidents. To address these key issues, this paper presents a dynamic simulation method for constructions processes based on a virtual geographic environment. This approach can facilitate the identification of conflicts in the construction scheme through accurately expressing and analysing the intricate spatio-temporal relations among railway facility components, construction equipment and the surrounding environment. First, a high-precision virtual geographic scene in which the construction process and methods can be visualized and modelled intuitively is established with terrain, imagery, and engineering 3D models. Then, the overall construction processes can be accurately simulated by a sequential display of the railway components and the behaviour of construction equipment. To simulate the behaviour of construction equipment, the linkage relations between each joint of construction machinery are accurately modelled and animation control parameters are extracted. Finally, a construction simulation of a high-speed railway bridge was performed, and the experimental results show that the proposed method can provide a scientific basis for the optimization of complex engineering construction schemes, safety hazard assessments, and related full life cycle tasks.

scholarly journals Possibilities of high-speed railway turnout data description

2021 ◽  
Vol 31 ◽  
pp. 18-26
Author(s):  
Adam Hlubuček
Keyword(s):  
Future Development ◽  
High Speed ◽  
Data Modeling ◽  
Data Models ◽  
High Speed Railway ◽  
Data Description ◽  
International Recommendation ◽  
Railway Infrastructure ◽  
The Future ◽  
Railway Turnout

This paper aims to summarize possibilities how to create data models of high-speed railway turnouts. The turnouts designed for high-speed operation require specific geometric solution. As the UIC RailTopoModel is considered an international recommendation in the field of data modeling of railway infrastructure, this issue is assessed in terms of models based on its principles. Solving this problem can affect the future development of the Multipurpose Railway Infrastructure Model gradually emerging at the CTU Railway Laboratory in Prague using the RailTopoModel principles.Whereas the RailTopoModel itself does not define any specific types of entities, the railML® 3.1 specifications are also used for assessment purposes. Turnouts are viewed both in terms of topology and in terms of functional infrastructure. In the final sections, recommendations are given on how to deal with the problems found, e. g. in terms of implementation into the Multipurpose Railway Infrastructure Model.

scholarly journals Experimental Study of the Dynamic Characteristics of a New Antidrainage Subgrade Structure for High-Speed Railways in Diatomaceous Earth Areas

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 532
Author(s):  
Qian Su ◽  
Zhixing Deng ◽  
Xun Wang ◽  
Wenyi Jia ◽  
Yunbin Niu
Keyword(s):  
Dynamic Characteristics ◽  
High Speed ◽  
Diatomaceous Earth ◽  
Water Resistance ◽  
Resistance Index ◽  
Local Environment ◽  
Vibration Acceleration ◽  
High Speed Railway ◽  
Engineering Construction ◽  
Field Excitation

The experience needed to carry out engineering and construction in diatomaceous earth areas is currently lacking. This project studies the new Hang Shaotai high-speed railway passing through a diatomaceous earth area in Shengzhou, Zhejiang Province, and analyzes the hydrological and mechanical properties of diatomaceous earth on the basis of a field survey and laboratory. Moreover, a new antidrainage subgrade structure was proposed to address the rainy local environment, and field excitation tests were performed to verify the antidrainage performance and stability of the new subgrade structure. Finally, the dynamic characteristics and deformation of the diatomaceous earth roadbed were examined. The hydrophysical properties of diatomaceous earth in the area are extremely poor, and the disintegration resistance index ranges from 3.1% to 9.0%. The antidrainage subgrade structure has good water resistance and stability under dynamic loading while submerged in water. After 700,000 loading cycles, the dynamic stress and vibration acceleration of the surface of the subgrade bed stabilized at approximately 6.37 kPa and 0.94 m/s2, respectively. When the number of excitations reached 2 million, the settlement of the diatomaceous earth foundation was 0.08 mm, and there was basically negligible postwork settlement of the diatomaceous earth foundation. These results provide new insights for engineering construction in diatomaceous earth areas.

A Research into the District Strategy on the Transportation Junction Terminal of High-Speed Railway - An Analysis of the Urban Design of the High-Speed Railway District in City of Wenling

2012 ◽  
Vol 178-181 ◽  
pp. 1448-1453
Author(s):  
Jian Chen ◽  
Yan Li Zhou ◽  
Yao Zhi Huang
Keyword(s):  
Urban Design ◽  
High Speed ◽  
Social Economy ◽  
Future Research ◽  
High Speed Railway ◽  
Railway Stations ◽  
Research And Practice ◽  
The Social ◽  
City Construction ◽  
Urban Designing

As the social economy and urbanization develop rapidly, a new high-speed railway city construction is undergoing. Urban designing theories that lack of research and practice leads to immature designs of high-speed railway stations. Based on urban design cases currently undertaken and theories and practices from home and abroad, this thesis analyzes the specialty of urban design of the high-speed railway stations. This thesis points out the significance to propose a scientific and reasonable strategy of developing areas and producing energy, and points out the significance of pattern of land-using on this sort of design. In terms of the specialty of the development and design of high-speed railway stations, this thesis offers some valuable insights into future research and practice.

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