西南交通大学学报

Mechanical Performance of Novel Prefabricated Composite Girder with Top Flange of Ultra Hight Performance Concrete Waffle Deck Panel

ZHANG Qinghua, HAN Shaohui, JIA Donglin, BU Yizhi

2019, 54(3): 445-452. doi: 10.3969/j.issn.0258-2724.20170906

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Abstract:
A novel prefabricated composite girder with the top flange of an ultra-high-performance concrete (UHPC) waffle deck panel in place of a normal concrete deck panel was proposed, to resolve problems associated with the high self-weight and high probability of cracking in conventional steel-concrete co...

Synthesis of Non-Stationary Seismic Waves Based on Phase Difference Spectrum and Its Application

JIA Hongyu, LAN Xianlin, CHEN Hang, ZHENG Shixiong, LI Xi, ZHANG Yongshui

2019, 54(3): 453-460. doi: 10.3969/j.issn.0258-2724.20180284

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A synthetic method of multi-dimensional and multi-point non-stationary seismic waves (MMNSWs) based on phase difference spectrum is proposed to simulate the non-stationarity and multi-dimensionality of real ground motions in hope to overcome the deficiencies of the traditional trigonometric series m...

Influence of Shield Construction on Pressure Fluctuation of Segment Grout

WANG Mingnian, HUANG Haibin, TANG Yuan, WANG Chuang, LIU Dagang

2019, 54(3): 461-467, 586. doi: 10.3969/j.issn.0258-2724.20170199

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In order to investigate the cause of slurry pressure instability segment tracking changes in the process of synchronous grouting segment, the variation law of external load of segments and the grouting lag time during shield tunneling were obtained, by means of the field test and construction parame...

Creep Buckling Analysis of Concrete-Filled Steel Tubular Columns

ZHAO Renda, WU Debao, WANG Yongbao, JIA Yi, LIAO Ping

2019, 54(3): 468-474. doi: 10.3969/j.issn.0258-2724.20170371

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In order to investigate the influence of concrete creep on the long-term stability of concrete-filled steel tubular (CFST) columns under axial load, based on the energy method and age-adjusted effective modulus method, the long-term stability equations for the critical force of CFST columns with dif...

Research Progress on Building Isolation Based on Electromagnetic Levitation Techniques

PAN Yi, ZHOU Meng, GUO Rui, HU Siyuan, LIN Yongjun

2019, 54(3): 475-482. doi: 10.3969/j.issn.0258-2724.20170413

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Isolation is viewed as one of the most promising technologies to protect buildings from strong earthquakes. The application of electromagnetic levitation techniques for isolation of building structures is a frontier research field in structure engineering. Compared to conventional rubber isolation b...

Seismic Behavior of Rectangular High-Strength Concrete-Filled Steel Tube Frame Structure

GUAN Minsheng, HUANG Xianqi, DU Hongbiao, ZHANG Jingang

2019, 54(3): 483-491. doi: 10.3969/j.issn.0258-2724.20170809

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In order to study the failure mechanism and seismic performance of rectangular high-strength concrete-filled steel tube (RHCFT) frames, the cyclic loading test as well as the finite element (FE) analysis was conducted on a single-span and two-story RHCFT frame. During the test, the formation process...

Analytical Finite Element for Timoshenko Beams

XU Jing, LI Shiyao, WANG Bintai, LI Jing, JIANG Xiugen

2019, 54(3): 492-498. doi: 10.3969/j.issn.0258-2724.20180176

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To improve the calculation accuracy and efficiency of structural force and deformation of deep beams, the deflection control equation of a deep beam was built by Timoshenko beam theory, and analytical displacement shape functions for deflection, section flexural angle and shear angle of deep beam we...

Face Stability of Shield Tunnel in Sandy Cobble Stratum with Continuum-Based Discrete Element Method

XUE Yadong, ZHANG Sen, LI Xing, GE Jiacheng

2019, 54(3): 499-506, 586. doi: 10.3969/j.issn.0258-2724.20170406

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The instability mechanism of shield tunnel excavation working face in a sandy cobble stratum was explored, and the CDEM (continuum-based discrete element method) was adopted to establish a quasi-continuous numerical model. Triaxial compression tests of sand-cobble soil were carried out numerically t...

Analysis of Limit Support Pressure due to Shield Tunnelling with Shallow Overburden under Seepage

CAO Liqiang, ZHANG Dingli, LI Xinyu, LI Ao, SUN Zhenyu

2019, 54(3): 507-515. doi: 10.3969/j.issn.0258-2724.20180482

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Based on the semi-contained water model, comprehensively considering the permeability of the shield-crossing soil layer and the overburden layer when shield passed through the permeable soil, the analytical solution of the head distribution along the tunnelling direction within the shield-crossing s...

Calculation Method of Trailing Edge Failure Surface of Retrogressive Landslide

SUN Lijuan, CUI Kai, YANG Tao, CHENG Qihang

2019, 54(3): 516-525. doi: 10.3969/j.issn.0258-2724.20170873

[Abstract](726)

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Slope failure is induced by retrogressive slide, forming a trailing edge tension crack surface. The shape of the trailing edge surface has an important influence on landslide stability analysis and thrust calculation. However, it is difficult to determine the spatial characteristics of the landslide...

Test Study on True-Triaxial Loading and Unloading for Marble with Unloaded Single Face

XU Wensong, ZHAO Guangming, MENG Xiangrui, LI Yingming, CAI Jinlong, GAO Liang

2019, 54(3): 526-534. doi: 10.3969/j.issn.0258-2724.20180542

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To accurately evaluate rock stability around the excavation face of roadway（tunnel）, a true-triaxial unloading disturbance testing system is applied in the loading and unloading tests of marble samples, where single-face was unloaded in the direction of the minimum principal stress. Through the anal...

Assessment for External Influence Factors of High-Speed Train Transmission Reliability

LIU Yumei, CHEN Yun, ZHAO Congcong, XIONG Mingye, QIAO Ningguo

2019, 54(3): 535-541. doi: 10.3969/j.issn.0258-2724.20170563

[Abstract](517)

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For the study of external influence factors besides its components impact on the high-speed train transmission reliability, the external influence factors of the CHR3 high-speed train transmission reliability are analyzed based on fuzzy influence diagram (FID). First, Frequency fuzzy sets, state fuz...

Field Measurements Study on High-Altitude Wind Characteristics of Bridge Site in Deep Gorge

ZHANG Mingjin, LI Yongle, YU Chuanjin, WU Lianhuo

2019, 54(3): 542-547. doi: 10.3969/j.issn.0258-2724.20170370

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Long-span bridges built in deep gorges are usually inaccessible and it is difficult to obtain wind characteristics of these bridge sites from the wind-resistant design code owing to the complex terrain and the great gap between the deck and the valley bottom. To confirm the high-altitude wind charac...

Fire Resistance Analysis of RC Beam Supporting Column Transfer Structure Joints

KONG Weiyi, FU Chuanguo, LIU Weiqing

2019, 54(3): 548-555. doi: 10.3969/j.issn.0258-2724.20170875

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To provide the basis for the fire prevention design of reinforced concrete beam supporting column transfer structures, according to the structural characteristics, two kinds of full size beam supporting column transfer structure joints are designed. The reinforced concrete beam supporting column tra...

Microstructural Characteristics and Modification Mechanism of Inorganic Fine Particles in Buton Rock Asphalt

WU Huairui, YE Fen, XU Xiaolong

2019, 54(3): 556-564. doi: 10.3969/j.issn.0258-2724.20180582

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The properties of natural inorganic fine particles in Buton rock asphalt (BRA) and the effects of asphalt modification on these particles were analyzed in order to study the role of the natural inorganic fine particles in the process of asphalt mixture modification. First, X-ray diffraction (XRD) pa...

Multi-Objective Robust Optimisation Method for Stochastic Time-Dependent Vehicle Routing Problem

DUAN Zhengyu, LEI Zengxiang, SUN Shuo, YANG Dongyuan

2019, 54(3): 565-572. doi: 10.3969/j.issn.0258-2724.20170617

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The vehicle routing problem (VRP) is a core issue of distribution logistics. In order to improve the timeliness of deliveries, a multi-objective robust optimisation model based on the minimax criterion was proposed for the stochastic time-dependent vehicle routing problem (STDVRP) with hard time win...

Modeling and Verification of Control System Specification for Railway Level Crossings Based on Formal Method

WANG Keming, WANG Zheng

2019, 54(3): 573-578, 603. doi: 10.3969/j.issn.0258-2724.20180607

[Abstract](479)

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To improve the reliability of the control system design for the railway level crossings, a formal method is used to model and verify this system. By analyzing the management standards of the railway crossingss, the requirement properties and event processes were obtained; moreover, a multilayer Even...

System Dynamics Analysis Method of Evolutionary Game Dynamics for Supervision of High-Speed Railway Operation Safety

LI Kehong, ZHANG Yadong, GUO Jin, WANG Zicheng

2019, 54(3): 579-586. doi: 10.3969/j.issn.0258-2724.20180034

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On the issue of no-incentive restraint mechanism and the regulator not independent in the entrusted transportation management model of high-speed railways (HSR) in China, an evolutionary game model of the HSR operation safety supervision system has been established through the analysis of the curren...

Modelling Passenger Evacuation from Metro Platforms Considering Passenger Flow Guidance and Small Group Behaviour

LI Fang, DI Yue, CHEN Shaokuan, JIA Wenzheng

2019, 54(3): 587-594. doi: 10.3969/j.issn.0258-2724.20170668

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Passenger flow guidance and small group behaviour during the actual evacuation process in metro stations greatly affect the behaviours of individual passengers and the evacuation result. To make a better simulation on the actual evacuation situation, the social force model was explored, which can ta...

Axiomatic Design Based Logistics System Evaluation in Mass Customization Context

CHEN Maolu, WANG Zengqiang, PU Yun

2019, 54(3): 595-603. doi: 10.3969/j.issn.0258-2724.20170190

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Evaluating logistics systems in the context of mass customisation is uncertain and complex., As linguistic information is utilized in the evaluation of of logistics systems rather thanprecise and quantitative indexes, this paper presents a methodology based on the linguistic information and axiomati...

Indoor Geomagnetic Positioning Based on Joint Algorithm of Particle Filter

HUANG He, QIU Kaiyue, LI Wei, LUO Dean

2019, 54(3): 604-610. doi: 10.3969/j.issn.0258-2724.20170927

[Abstract](421)

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The indoor geomagnetic field is affected by the presence of a steel structure and other ferromagnetic materials, causing local anomalies in the magnetic field region and and a unique indoor magnetic field. Indoor geomagnetic positioning technology can be realized by exploiting this phenomenon. Howev...

Multi-objective Indoor Path Planning Method with Dynamic Environment Awareness

ZHOU Yan, CHEN Hong, ZHANG Yeting, HUANG Yueying, ZHANG Pengcheng, YANG Weijun

2019, 54(3): 611-618, 632. doi: 10.3969/j.issn.0258-2724.20180098

[Abstract](567)

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A dynamic environment-aware multi-objective indoor path planning method is proposed, aimed at satisfying the multi-objective navigation requirements of users in complex indoor environments. Multi-dimensional indoor environment semantics such as indoor path complexity, the degree of congestion, and b...

Comparative Study on the Curving Performance of Chinese Railway Heavy Haul Freight Bogies

YANG Chunlei, HUANG Yunhua, LI Fu

2019, 54(3): 619-625. doi: 10.3969/j.issn.0258-2724.20180178

[Abstract](587)

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The low dynamic interaction performance of the 27 t axle load cross-braced bogie and the sub-frame radial bogie developed in China were compared in order to study their curving performance. Based on the theory of vehicle-track coupling dynamics and the actual structures of the two bogies, two vehicl...

Simulation and Verification of Dynamic Response of Railway Wagon on Railway Track

YU Yuebin, ZHAO Shangchao, LI Xiangwei, LI Qiang

2019, 54(3): 626-632. doi: 10.3969/j.issn.0258-2724.20170412

[Abstract](389)

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For resolving errors between a simulation analysis and the test results of a large system, a multi-body simulation model of a railway wagon with 26 degrees of freedom was created using test data from a real test rig on a railway track and by incorporating the wagon body’s subsystems into the simulat...

Fault Diagnosis of Rolling Bearing Based on EEMD-Hilbert and FWA-SVM

ZHANG Min, CAI Zhenyu, BAO Shanshan

2019, 54(3): 633-639, 662. doi: 10.3969/j.issn.0258-2724.20170435

[Abstract](644)

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To effectively extract the non-stationary characteristics of the rolling bearing vibration signal and improve the fault diagnosis efficiency, a feature extraction method based on the ensemble empirical mode decomposition (EEMD) and Hilbert transform was proposed. The support vector machine (SVM) cla...

Railway Fastener Detection Using Gaussian Mixture Part Model

HE Biao, LI Bailin, LUO Jianqiao, WANG Kaixiong

2019, 54(3): 640-646. doi: 10.3969/j.issn.0258-2724.20180077

[Abstract](463)

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Herein, the shape deformations in the collected images of railway fasteners, the large illumination difference in the fastener image, and the partial occlusion of the fastener by foreign objects is addressed. A Gaussian mixture part model (GMPM) algorithm is proposed to address these issues. This mo...

Parallel Algorithms for Text Sentiment Analysis Based on Deep Learning

ZHAI Donghai, HOU Jialin, LIU Yue

2019, 54(3): 647-654. doi: 10.3969/j.issn.0258-2724.20160948

[Abstract](466)

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In the case of big training set and test set, based on semi-supervised auto encoder (Semi-Supervised RAE), the text sentiment analysis algorithm is accompanied by slow training rate and output rate of test results. To solve these problems, the corresponding parallel algorithms are proposed in this p...

Influence of Phosphorus Control on Coupling System ofWinery Wastewater and Microalgae Cultivation

YU Jiang, TAO Hongqun, WANG Yating, WANG Yizheng, PENG Weidong, RAN Zongxin, HE Yulong

2019, 54(3): 655-662. doi: 10.3969/j.issn.0258-2724.20180585

[Abstract](448)

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To investigate the optimum phosphorous condition for the coupling system of winery wastewater and microalgae cultivation, changes in growth of Chlamydoomonas reinhardtii and Scenedesmus dimorphus were observed under single culture and co-culture conditions, and the absorption and removal efficiency ...

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2019 Vol. 54, No. 3