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20 December 2001, Volume 20 Issue 4 Previous Issue    Next Issue

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Aerostatic stability analysis for second bridge of Shantou CHENG Jin , JIANG Jian jing ,XIAO Ru cheng ,XIANG Hai fan 2001, (4): 1-4.  Abstract ( )   Aerostatic stability for second bridge of Shantou with the main span of 518m was analyzed in detail in this paper. The reason of instability for this bridge was first explained,then some valuable conclusions were drawn.It provided base for avoiding instability in the future. References | Related Articles | Metrics

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Simulation test study on the construction of Danhe stone arch bridge XIANG Zhong fu,GU An bang 2001, (4): 5-10.  Abstract ( )   After simulation test study on the construction of Danhe bridge, it is testified for long span stone arch bridge that the common effect between the arch centre and the arch ring formed in advance is obvious and the stress of arch ring is related to the process of construction. References | Related Articles | Metrics

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Time-dependent behavior analysis of long span CFST arch bridge ZHANG Jian min,ZHEN Jie lian,QINRong3 2001, (4): 11-15.  Abstract ( )   According to the age adjusted effective modulus method and the creep coefficient provided by the Rule ,a computing program is presented in this paper.Being aimed at the Yonghe bridge in the city of Nanning, a truss arch bridge with concrete filled steel tubules(CFST) and with a main span of 349m, a numerical calculation is carried out .The results shows that the creep effect can improve the internal force and deformation state of CFST arch bridge to some extent, the redistributed internal force is considerably large. References | Related Articles | Metrics

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The application of the grey system method to construction control for PC continuous rigid frame bridge ZHANG Yong shui 2001, (4): 16-18.  Abstract ( )   In this paper, emphasis is laid on discussion about the application of the grey system method to construction control for PC continuous rigid frame bridge.By means of applying the grey system method to Chongqing Huanghuayuan Jialing river bridge, it is demonstrated that the grey system method is applicable for construction control for of the same pattern bridges. References | Related Articles | Metrics

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Test analysis of ductility on cementing prestressed overlapping flexural unit BU Le qi,LEI Guang yu 2001, (4): 19-22.  Abstract ( )   In this paper,we have contrast destructive tests on two pieces of prestressed overlapping continuous beams against a piece of cast in situ continuous beam and two pieces of prestressed overlapping frame against cast in situ frame,by which the ductility performance of prestressed overlapping flexural unit has been researched,providing test reference for the general application of prestressed overlapping flexural unit. References | Related Articles | Metrics

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Research on the monitoring method of cable force WU Hai jun, CHEN Si tian, GONG Shang long, XU Yi, SHI Shang wei 2001, (4): 23-25.  Abstract ( )   Based on the introduction of the way of cable force monitoring,Some methods are developed to the problems in the monitoring and controlling of Qiao bridge in Zhuhai analysis and comparison show that the method is available and could be used for reference in the monitoring and controlling of cable force. References | Related Articles | Metrics

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The clever use of neutro-axis of the girder in the stress measurement of the long span PC cable-stayed birdge ZHOU Jiang ping,XU Yu feng 2001, (4): 26-29.  Abstract ( )   As stress measurement of interior concrete is hard in the contruction control of the cable stayed bridge,a new method fitted for stress measurement in long span PC concrete cable stayed bridge is proposed in this paper. This method is based on the normal stress in neutro axis of girder is only decided on the horizontal part of the cable force.First calculate the normal stress in neutro axis of girder by the measured cable force,then identify the creep coefficients,and then make out the other stresses.The results of a building long span PC cable stayed birdge used by the this mehtod show the accuracy and efficientcy of the proposed method. References | Related Articles | Metrics

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Supporting casting technology used in the continua box girder construction in the Longfeng river bridge ZHONGNing,LUO Ke chang 2001, (4): 30-32.  Abstract ( )   Supporting casting technology used in the continua box girder construction,can effectively solve the problem in building high pier in river soft soil foundation.By its application,it is no need to harden the foundation or for supporting on the foundation,and so a large of steel is saved. This new method is worth to be spread in the bridge construction of mountainous expressway. References | Related Articles | Metrics

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Study on deep-water pile foundation in highway and bridge construction LIN Bing chao 2001, (4): 33-37.  Abstract ( )   With the first hand construction experience,the author discusses in this paper on how to deal with issues in highways and bridges construction,such as survey and design of deepwater pile foundation,construction procedure,building and subsealing cofferdam,and construction method for bored cast in place piles,etc. References | Related Articles | Metrics

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Construction technology of deep water bulky base slab ZHONG Jian feng, HE Bing, WANG Bao jun 2001, (4): 38-42.  Abstract ( )   Along with the development of large span bridges at home, bulky base slab emerges gradually.This paper takes Haicang Bridges west tower base slab as an example to introduce construction technology of bulky base slabs casing box,including the designing of casing box and dealing with construction process. References | Related Articles | Metrics

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Restoration and design improvement of the base beam crack for the arch-above complex arch bridge QIN Guang shu 2001, (4): 43-46.  Abstract ( )   Through analysis of the reasons leading to the base fraine beam crack of the arch above complex arch bridge, the production of the initial crack and the crack expansion under the constant load and the addtional load are studied.The restoration plan and improvement setps in the design are put forward,and the problems overlooked in the design and previous construction can be overcome.The measures of the restoration of the crack are reasonable and economical. References | Related Articles | Metrics

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Construction technology of Haicang bridge’s west tower column ZHONG Jian feng , HE Bing ,FANG Jian qian 2001, (4): 47-49.  Abstract ( )   The construction technology of suspension bridge at home and abroad is mainly technology of 6m turn over shuttering each time. This paper takes Haicang bridges west tower column as an example and introduces new technology of casting 6m turn over shuttering.? References | Related Articles | Metrics

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The application study and prospect of HPC with silica fume and ultra fine sand CHEN Si tian,GONG Shang long,LIU Jing ying 2001, (4): 50-53.  Abstract ( )   The paper studies the strength,performance,and economization of HPC with silica fume and ultra fine sand,and goes further into a prospect for its further study and application. References | Related Articles | Metrics

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Analysis of research strategy for long-term Pavement Performance in China HAO Da li, WANG Bing gang 2001, (4): 54-58.  Abstract ( )   The necessity,significance,fundamental conditions and main obstacles of LTPP in China are analyzed in this paper.The basic strategy,key problems and methodology in research are presented based on current situation of China. References | Related Articles | Metrics

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Study on the gradation of stone matrix asphalt(SMA) LU Yong gui , ZHAOKe 2001, (4): 59-64.  Abstract ( )   In order to study the gradation of SMA(Stone Matrix Asphalt)mix,a test plan with multilevel is drawn up by using Uniform Design method to analyze the Voids in the Coarse Aggregate(VCA),in this paper,the regression analysis is done to the VCA data,and a reasonable composing of coarse aggregate is got.The minimum asphalt content is determined by the aggregate coated asphalt test,the percentages of fine aggregate and filler are analyzed by using the Void Design Procedure. The road related performance test to the designed mix shows that it is better than others. References | Related Articles | Metrics

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Study on performance of SMA by used base asphalt PENGBo,HAO Pei wen,LI Wen ying 2001, (4): 65-68.  Abstract ( )   Based on systematic test of SMA mixture for road performance,this paper analyzed its high temperature stability,cracking resistance at low temperature and fatigue resistance of SMA mixture by used base asphalt.The composition structure and mechanism of strength of SMA mixture are analyzed as compared with asphalt concrete. References | Related Articles | Metrics

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Study on the Application of phosphogypsum to the base of highway pavement DONG Man sheng, LING Tian qing 2001, (4): 69-72.  Abstract ( )   At present the waste phosphogypsum produced in wet process phosphoric acid production contaminates heavy environments.The application of gypsum to the base of highway pavement not only saves investment,but also settles in effect pollution of phosphorous slag, bringing notable technical and economic benefit and social benefit.In this paper,the compound material performance is studied through the indoor test,making essential preparations for the application of gypsum. References | Related Articles | Metrics

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Equidistance lines of spawn-liked curve chord-distance method for construction location FANGQin,JI Wei xiang,YAN Chun ling3 2001, (4): 73-75.  Abstract ( )   Compound curve is often used in high classes road of mountain terrian desigh,the most complex situatio of which is opawn liked curve.When the centre line of road is spiral curve,the edge lines(equidistance lines of centre line) are not spiral curves,which makes it difficult for construction location.If chord distance method is employed to solve the problem through calculating the height of segment,it will be accurate and convenient. References | Related Articles | Metrics

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The analysis method of stability of cutting slope of soil nail WU Guo xiong,FENG Guang le,LING Tian qing 2001, (4): 76-79.  Abstract ( )   After finishing designing a side slope plan of soil nail,a problem which people have always paid attention to is how designers adopt reasonable method to analysize side slopes stability of soil nail.Based on limit equilibrium analysis theory,this paper puts forward the stability analysis method of cutting side slope of soil nail by using the concept of disturbance power put forward by Sarma to build mathematical model of soil nail wall supportings slices method and using simplex optimization method to confirm the dangerest slide face. References | Related Articles | Metrics

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Applied research on impact method in Wanzhou Airport high embankment HE Zhao yi, CHEN Shong ming, LIN Xin dong 2001, (4): 80-83.  Abstract ( )   Regarding Wanzhou high embankment constrauction,impact method is applied.Three types of test with fill material thickness of 6ocm,80 cm and 100cm are carried out. Impact effect and construction controlling parameter are suggested.As a result,the number of impact,thickness of loose fill material,maximum particle of diameter fill materials and rate of settlement are proposed. References | Related Articles | Metrics

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Study on smooth blasting technique used in roadbed bank blasting of Da(zu) You (ting) expressway LIU Xin sheng 2001, (4): 84-86.  Abstract ( )   During the construction of roadbed of Chongqing Da(zu)You(ting) expressway,the roadbed bank of 27m height was blasted smoothly in two beds.After the blasting,the roadbed bank is smooth,stable and beautiful.The effect of the blasting is good. References | Related Articles | Metrics

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Study of slope measurement and sound wave transmission method XIAO Guang cheng 2001, (4): 87-88.  Abstract ( )   The method presented in this paper combines the sound wave transmission method with the slope measurement theory to overcome its biggest disadvantage and greatly improve the accuracy and reliability.The low cost and easy operation of this method indicate a great market. References | Related Articles | Metrics

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Discussion on bentonite subgrade construction LIU Wei ping 2001, (4): 89-91.  Abstract ( )   Combining subgrade construction practice,the paper describes the datials of the bentonite subgrade construction technology according to characteristics of bentonite. References | Related Articles | Metrics

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Analysis for passenger traffic characteristics of external traffic hub in urban YAN Qi peng,WANG Zhong qiang 2001, (4): 92-95.  Abstract ( )   This paper analysed the passenger demand of external traffic hub in urban.By means of forecast method including generation,trip distribution,split modal and path selection,passenger flow and vehicle volume on street network and public transport network are determined.The research results are applied to park plan,traffic management,the plan of public transport terminal and so on. References | Related Articles | Metrics

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Investigation for the reason and responsibility of a traffic accident HUANG Wei, YANG Fang 2001, (4): 96-97.  Abstract ( )   Based on the investigation and on the spot inspection to a traffic accident ,research on the process of collision vehicles with the help of principle of mechanics. The reason, which caused the traffic accident, was understood and the responsibility of the accident was clear. References | Related Articles | Metrics

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Analysis on rational scale of highway construction company(Ⅱ) GUO Xiao gong, WANG Li ming, LEI Jing 2001, (4): 98-100.  Abstract ( )   This paper analyses the main factors related to the scale of construction company and discusses the internal structure of scale company.At last,it puts forward the measures to determine the rational scale of construction company. References | Related Articles | Metrics

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Analysis of navigation development based on power generation of Jialing River RONG Xue wen, WANG Lian qin, WANG Ping yi 2001, (4): 101-104.  Abstract ( )   Based on lack of fund the research of Jialing River channel both, the domestic and foreign experience,the effective way of developing navigation based on power generation is introduced and discussed.The authors focus on the factors which effect the efficiency of the way of development navigation based on power generation and propose the way and provide the suggestions. References | Related Articles | Metrics

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Study on flood influence of Yangtze River due to reconstruction of Fengdu Port YANG Sheng fa,YANGBin,XU Guang xiang 2001, (4): 105-109.  Abstract ( )   Based on the 2 D flow field calculation for the reach of Fengdu,an analysis on the water level change in 0 year and the fiftieth year due to the reconstruction of the Fengdu Port had been done.Moreover,this paper ananlyzes the flood influence to the reach of Fengdu.This study,therefore,provides the scientific basis for the reconstruction of the Fengdu Port. References | Related Articles | Metrics

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Research on mathematic expression of ship shape of longitudinal fluid TANG Yi hu 2001, (4): 110-114.  Abstract ( )   This paper uses longitudinal function method to study the ship shape of longitudinal fluid and proposes the relevant mathematic model.It supplies basis of theory for CAD of ship shape of longitudinal fluid. References | Related Articles | Metrics

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A new method of solving two classes problems of weakly nonlinear oscillation YUAN Xue hui,BAO Jian wen,YUAN Yi wu3 2001, (4): 115-118.  Abstract ( )   In this paper,using the interpolation perturbation method,the authors seek to solve two classes of weakly nonlinear oscillations.The one is the nonlinear free oscillation of conservative system.The other is the parametric oscillation.For the former,since we transform the problem to solve differentiation into that to solve algebraic equation,the calculating process is very simple.For the latter,since we transform the problem to seek to solve the second order differential equation into that of twice integrations,the calculating process is also simple.There are calculating examples which show that the results of the paper is reliable. References | Related Articles | Metrics

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Decentralization government organization network scheme CHEN Song 2001, (4): 119-122.  Abstract ( )   This paper discusses the scheme about how to use the common communication platform to construct WAN.This scheme adopts the most advanced Internet and Web technology and is extremely adapted to the government organization which primary organizations (county and country)are comparatively decentralized and have not high demand about real time data. It makes such day to day work handling as the plan assigning and statistics data reporting become very fluent and simultaneously can greatly save the ru... References | Related Articles | Metrics