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Jia J.Q.,Lan Zhou JiaoTong University | Jia J.Q.,Key Laboratory For The Exploitation Of Southwestern Rsrc And The Environmental Hazard Control Engineering | Wang H.T.,Key Laboratory For The Exploitation Of Southwestern Rsrc And The Environmental Hazard Control Engineering | Yang W.Y.,Jiang Xi Hong Cheng Realty Development LTD
ICIC 2010 - 3rd International Conference on Information and Computing | Year: 2010

The deep foundation fit of Xin Ming He building was reinforced by soil nail, shot concrete and steel bar mesh, and the calculated pressure per unit area of soil nail is about 83.48kN which is larger than the largest lateral earth pressure which is about 59.55kN, from which it can be known that the foundation fit is stable. Meanwhile, the 3D-σ finite element program was used to simulate axial force of soil nail, lateral displacement of foundation fit and surface displacement, and their values are all small which show that the foundation fit is stable. © 2010 IEEE.


Yue H.,Lan Zhou JiaoTong University | Haiyan L.,Lanzhou Petrochemical Company
Advanced Materials Research | Year: 2013

A prediction algorithm for traffic flow prediction of BP neural based on Differential Evolution(DE) is proposed to overcome the problems such as long computing time and easy to fall into local minimum by combing DE and neural network. In the algorithm, DE is used to optimize the thresholds and weights of BP neural network, and the BP neural network is used to search for the optimal solution. The efficiency of the proposed prediction method is tested by the simulation of real traffic flow. The simulation results show that the proposed method has higher precision compared with the traditional BP neural network, so prove it is feasible and effective in the practical prediction of traffic flow. ©(2013) Trans Tech Publications, Switzerland.


Jia J.,Lan Zhou JiaoTong University | Zhang Y.,Chinese Academy of Sciences | Liu X.,Chinese Academy of Sciences | Zhang X.,Liaoning Railway Vocational and Technical College | Zhou X.,Chinese Academy of Sciences
Information Technology Journal | Year: 2013

Information management of road's elementary data will play a more important role for accident treatment, disaster relief, data management, engineering construction and others. In this study, we use the MapX and VB programs, the database of road property is designed and the methods of data's input, edit and building of Geoset object are all analyzed. The functional modules, including file management, view operation, select query, object editor, are established and the embedded procedures are all analyzed, too. Based on this, the information system are developed which can realize the information management of road basic data. © 2013 Asian Network for Scientific Information.


Jlv J.,Lan Zhou JiaoTong University | Jlv J.,Key Laboratory For The Exploitation Of Southwestern Rsrc And The Environmental Hazard Control Engineering | Wang H.,Key Laboratory For The Exploitation Of Southwestern Rsrc And The Environmental Hazard Control Engineering | Wang H.,Chongqing University | And 3 more authors.
Disaster Advances | Year: 2010

Honggutan deep foundation fit was reinforced by soil nailing, shot concrete and steel bar mesh. According to the engineering characteristic, the safety grade is valued two, based on this, the reinforcement pressure of unit area of soil nailing which is about 115.92kN is calculated, and it is larger than the largest lateral earth pressure which is about 71.43kN, from which we can know that the foundation fit is stable. The 3D-s finite element program was used to simulate axial force of soil nailing, lateral displacement of foundation fit and surface displacement, and the simulation results were all small from which it can be known that the foundation fit is stable. The calculation results accord with the theory calculations. The study results also show that relative displacement of foundation fit fringe decreases with the excavated depth increasing, and surface settlement decreases quickly with the distance between surface and foundation fit fringe increasing. Foundation fit; soil nailing; stability.


Zhao F.,Lan Zhou JiaoTong University | Wu B.,Lan Zhou JiaoTong University
Lecture Notes in Electrical Engineering | Year: 2012

High-power controlled rectifier circuit includes a balanced reactor with dual reverse star-controlled rectifier, and multiple rectifier circuit. In this paper, we analyze and calculate the voltage of the thyristor for the working process of a dual reverse star-controlled rectifier with balanced reactor, and MATLAB simulation, making a basis for the study of the application in the occasions which requires low voltage, high current, and provides a basis for the exact choice of power electronic devices in order to save energy and reduce costs. © 2012 Springer-Verlag London Limited.

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