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15 October 2004, Volume 23 Issue 5 Previous Issue    Next Issue

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Caiyuanba grade separation design of Chongqing Caiyuanba bridge engineering ZOU Yun, LI Ming 2004, 23(5): 1-4.  Abstract ( )   PDF (240KB) ( )   Caiyuanba grade separation is the major project in the north bank connection of Caiyuanba bridge. The essay indicates the overall procedure of Caiyuanba grade separation design, the design difficult, the design idea and the feature of each design scheme in scheme comparing and selecting, which provide example and basis for further summarizing grade separation design in mountainous city References | Related Articles | Metrics

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The analyzing of the steel bridge pavement LI Mao-tao, HE Zhao-yi 2004, 23(5): 5-7.  Abstract ( )   PDF (717KB) ( )   The pavement for steel bridge deck is still researching and developing in world. Our country steel bridge is developing rapidly. It is important for the pavement for steel bridge during the developing of steel bridge. The paper are analyzing the situation of the pavement by the researching it. References | Related Articles | Metrics

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Research on cracks of reinforced concrete continuous beam bridges FAN Liang，ZHOU Zhi-xiang，REN Chao 2004, 23(5): 8-11.  Abstract ( )   PDF (1184KB) ( )   Cap-beams on the middle pier of continuous beam bridges in municipal cross roads are often omitted for the reason of beauty. But a plane analysis is often used in general designs. An actual two-span continuous beam bridge is calculated based on both plane analysis and spatial analysis and the results are contrasted in this paper. The reasons of cracks of the beams are discussed. A dangerous design result may be obtained for the continuous beam bridges which has no cap-beams on the middle pier if References | Related Articles | Metrics

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Some technical problems in the supervision of long span RC arch bridge construction with scaffold LUO Hong, XU Jun-lan, ZHANG Yong-shui 2004, 23(5): 12-15.  Abstract ( )   PDF (198KB) ( )   The key technical problems in construction of long span reinforced concrete arch bridge with scaffold include: layer’s height of main arch, time of pouring concrete , subsection’s length of main arch, procedures of pouring and decentering of main arch etc. This paper provides some references for constructing bridges of this type by a case study of Xugou Bridge. References | Related Articles | Metrics

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Research & design of the lightening view and painting of kuimen bridge CHEN Zheng-bin 2004, 23(5): 16-19.  Abstract ( )   PDF (187KB) ( )   As the designer of the lightening, painting and environment of Kuimen Bridge, the author puts forward the concept of lightening a bridge with flashing, moving and colorful lights, which will not only improve the lightening design of bridges but will also exert influence on the environment design of cities References | Related Articles | Metrics

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Study of the small displacement cover-up seamless expansion-contraction devices of bridge FAN Tong-jiang 2004, 23(5): 20-22.  Abstract ( )   PDF (1059KB) ( )   The structures, the design principles, the performances and technical specifications of the main materials in use and the construction technologies for the small displacement cover-up seamless expansion and contractible devices of bridge are introduced in greater detail. Maybe there are the certain referenced significances for you to apply above-mentioned expansive and contractible devices References | Related Articles | Metrics

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A new method of computing interface’s stress for composite concrete structure GAN Xian-jun, YI Zhi- jian, YANG Qing-guo 2004, 23(5): 23-26.  Abstract ( )   PDF (186KB) ( )   According to the concept from mechanics of fracture and stacking principle, Applying the method of finite element,in this paper getting the distribution law of stress of interface between concrete and stickup layer,avoiding the process of crack producing and developping which can not be simulated by FEA, providing a new way to find out the distribution law of stress of interface between concrete and stickup layer References | Related Articles | Metrics

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Application of treating differential settlement of subgrade by geocell at Taigu highway YANG Xiao-hua, YU Yong-hua 2004, 23(5): 27-29.  Abstract ( )   PDF (604KB) ( )   Through analyzing the mechanism of treating differential settlement by geocell, the paper introduce the engineer case of treating the differential settlement by geocell for cut-fill section of Taigu highway. The result of plot detection and findings shows that modulus of resilience of subgrade reinforced by geocell is improved to be 1 times more, there is no mutation of the subgrade settlement at fill-cut connection, the settlement is transited gently, the maximum displacement has only 18mm. All References | Related Articles | Metrics

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Study of temperature-stress about semi-rigid material LI Wei- guang, SHEN Ai- qin, ZHANG Yu-bin 2004, 23(5): 30-34.  Abstract ( )   PDF (223KB) ( )   Lack to the study for Semi-rigid material that the temperature-stress problem produced because of the external temperature changes. Basing on four-typical-provinces’ summer and winter’s limited-temperature, calculating the temperature-stress of Semi-rigid material which causes by temperature’s influence, under different typical-structures and different districts. The study indicates under different layer-structure, the temperature-stress produced by external differing greatly. It proves that for References | Related Articles | Metrics

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Application of fuzzy comprehensive evaluation method in wearproof cement concrete pavement HAN Chun-yun , WANG Jin-si , WANG Rui-yan 2004, 23(5): 35-38.  Abstract ( )   PDF (164KB) ( )   According to the characteristic of the wearproof cement concrete pavement, the paper estimated security and rationality of cement concrete pavement of primary designed index by using two-stays fuzzy comprehensive evaluation, single factor fuzzy comprehensive judgment method was applied to the optimum of structure mode, through the judgment of engineering investment, using performance, structure tolerance, endurance, etc, confirmed rational cement concrete pavement structure types References | Related Articles | Metrics

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Summarize of recycled mixture for old asphalt pavement NI Xiao-jun , CHEN Shi-zhou , LING Tian-qing 2004, 23(5): 39-42.  Abstract ( )   PDF (159KB) ( )   The technology of recycling old asphalt pavement is new.Nowadays the all countries value it very much.In this paper the feasibility and necessity of recycled mixture of old asphalt pavement ,the design and construction technology of reclaimed mixture of old asphalt pavement are analyze References | Related Articles | Metrics

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The research on temperature shrinking property of stabilized shale soil used as pavement base HE Zhao-yi, LIU Qing-qian, HUANG Wei- rong, ZHANG Hai- long 2004, 23(5): 43-47.  Abstract ( )   PDF (1429KB) ( )   In this paper, the temperature shrinking property of cement stabilizd shale soil;lime-flyash stabilizd shale soil;solidify agent stabilizd shale soil and lime-flyash stabilizd shale soil adding soft aggregate are researched .Finally, lime-flyash stabilizd shale soil adding soft aggregate and cement stabilizd shale soil adding soft aggregate are preference than cement stabilizd shale soil; lime-flyash stabilizd shale soil and solidify agent stabilizd shale soil in temperature shrinking property References | Related Articles | Metrics

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Orthogonal experiment research on cement stabilized aeolian sand and macadam base course MA Shi-bin , CHANG Jun-ying , WEI Lian-yu , WU Yan 2004, 23(5): 48-51.  Abstract ( )   PDF (195KB) ( )   By using orthogonal tests, with the 7d-unconfined compression strength as criteria, through indoor blending ratio tests about cement and macadam added to eolian sand, this paper studies the road performance of cement stabilized aeolian sand and macadam base course and analyses the effects of cement content, macadam content and macadam gradating on road performance. The results indicate that using cement stabilized aeolian sand and macadam, as base course for road is feasible References | Related Articles | Metrics

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Experimental study on using coal slack as the filling of roadbed LIU Chun-rong , WANG Dong-quan , ZHU Yu-xiao 2004, 23(5): 52-54.  Abstract ( )   PDF (114KB) ( )   Based on large numbers of tests for the physical-mechanical performance of coal slack used as the filling of roadbed, this paper analyzes theoretically the data obtained, and presents the feasibility and techniques of using the coal slack as the filling of roadbed References | Related Articles | Metrics

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Research on creep property of SGC specimens in high temperature WEI Mi, ZHOU Jin-chuan 2004, 23(5): 55-58.  Abstract ( )   PDF (152KB) ( )   In this paper,the author utilizing advanced material test systerm(MTS) makes an uniaxial static creep test on bitumen mixture specimens made by SGC.and obtains creep curves between deformation and time of these specimens. Basing on these curves,the author analyese the effect on creep performance of bitumen mixture exerted by temperature and load level References | Related Articles | Metrics

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The ecosystem managing of expressway construction PENG Bo, LIN Li, XUE Hui 2004, 23(5): 59-61.  Abstract ( )   PDF (148KB) ( )   Ecosystem greening is an important part of expressway construction, a part of environment protect. Based on the study of botany, ecology and environment aesthetics, the functions and roles of highway afforestation are analyzed in the paper. Considering the prevention of insect pest and the development tendency of afforestation, a comprehensive assessment on the means and methods forit has been put forward References | Related Articles | Metrics

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Application of environmental protection in highway engineering design GUO Fa-zhong 2004, 23(5): 62-64.  Abstract ( )   PDF (116KB) ( )   Based on example of environmental protection in highway engineering design, main body of engineering is not only ensured, environmental protection is also emphasized a ctively. Then design project is determined by the principle of environmental protection References | Related Articles | Metrics

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The contrastive analysis on traffic volume of highway construction post-evaluation and preceding-evaluation WANG Jian-jun, TAO Jing, YAN Bao-jie 2004, 23(5): 65-69.  Abstract ( )   PDF (166KB) ( )   Traffic volume forecast and analysis is an important proportion of highway construction feasibility study and post-evaluation. Based on thread of thought of traffic volume forecast and analysis,this paper contrastively analyzed actual traffic volume in working phase and forecasting traffic volume in feasibility study phase about some expressways in recent some years,put forward some suggestions on improving traffic volume forecast and analysis. Based on the research about Xi’an～Baoji expressway References | Related Articles | Metrics

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Adaptability study about highway transportation and economics MA Shu-hong 2004, 23(5): 70-75.  Abstract ( )   PDF (249KB) ( )   On the basis of the concept of the adaptability of highway transportation and economics, The author proposes two theories used in the adaptability analysis. Then,according to the two theories,puts forward the evaluation index systems and the comprehensive evaluation methods. Finally, discusses the application of these theories and methods in Shan’xi. References | Related Articles | Metrics

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Review of debris flow research in highway(II) TANG Hong-mei, CHEN Hong-kai 2004, 23(5): 76-81.  Abstract ( )   PDF (205KB) ( )   Debris flow is one of important highway-waste, and one of main dynamic force to destroy highway too. According to analyses to research documents at home and abroad, the authors divide studies status quo into eight parts, i. e. subject system of debris flow and debris flow classification, formation of debris flow, model of debris flow mass, movement and impact of debris flow, abrasion of debris flow, control technique of debris flow, debris flow testing and disaster appraise. It is analyses and appraise in detail in this paper that abrasion of debris flow, control tecnique of debris flow, debris flow testing and disaster appraise. Further approach some key problems in control of debris flow with impact and deposit in debris flow in highway. References | Related Articles | Metrics

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Research on formation conditions of V-shaped debris flow with impact and deposit TANG Hong-mei, CHEN Hong-kai 2004, 23(5): 82-88.  Abstract ( )   PDF (1239KB) ( )   As one type of debris flow along highway to trigger disaster in west China, V-shaped debris flow with impact and deposit usually impact and bury structures of highway. The authors make some studies to formation conditions of the debris flow from geomorphology, material and dynamic features in this paper. It are identified that both formation region with greater area and less than 5.0 of length and width ratio, steeper pass region and gently deposit region are geomorphologic conditions for the de... References | Related Articles | Metrics

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Numerical simulation on coupling problem between debris flow and high-speed drain structure WU Si-fei, TANG Hong-mei, Li Qiang, CHEN Hong-kai, 2004, 23(5): 89-93.  Abstract ( )   PDF (220KB) ( )   Debris flow has strong impact and destroying energy, and is the mostly factor which damage the controlling construction and others through the debris flow valley. Based on the primary theory of fluid-structure coupling problem, the paper attains dynamic responses of High-speed Drain Structure under debris flow impact by using the ADINA procedure, and also gains some useful conclusions by way of analyzing the plane displacement and stress References | Related Articles | Metrics

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Traffic impact analysis of Jiefangbei CBD(Ⅱ) LI Shu-qing, XU Guang-rong, REN Qi- liang, LI Zhi- ying 2004, 23(5): 94-98.  Abstract ( )   PDF (165KB) ( )   According to the road traffic characteristics of the impact scope of Jiefangbei CBD ,the paper used the idea of traffic impact analysis to bright up road rebuilding or improvement project plans and traffic organization plans, evaluated the effects of all the plans, recommended the proper definition and scale of CBD development References | Related Articles | Metrics

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The analysis and optimization of the fastened point intensity on automobile safey belt DU Zi-xue, WEN Xiao-xia 2004, 23(5): 99-101.  Abstract ( )   PDF (1758KB) ( )   It is a important criterion of the fastened point intensity on automobile safe belt.The compulsive regulation of the country clearly requires that the fastened point intensity on the safe belt must ensure that the safe belt can’t be broken off under the weight of the give load.This paper treats the mini-truck of Changan Automobile works as the research object.discuss how to adopt FEM to simulate the fasten point inensity on the safe belt and finally gives a usable calculated model,boundary condi... References | Related Articles | Metrics

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Study on passenger stations impact evaluation in comprehensive transportation terminal based on PopFuzzy soft PAN You-cheng 2004, 23(5): 102-105.  Abstract ( )   PDF (717KB) ( )   Passenger stations location planning in comprehensive transportation terminal is an important subject for urban transport planning. The passenger stations impact factor set is established, based on this, the impact degree of passenger stations location is studied, so comprehensive transportation terminal planning can be promoted. In this paper, firstly, the author starts with passenger stations structure system, and the impact evaluation indicators system is brought forward. Secondly, passenger ... References | Related Articles | Metrics

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A study of the model for the customer general value and its application in logistics enterprise LIU Wei-hua, YAN Qi-peng 2004, 23(5): 106-108.  Abstract ( )   PDF (761KB) ( )   As one important part of customer knowledge, the customer general value is benefit to grasp the trend of customer relation, to perform the customer segmentation in logistics enterprise. Based on the correlative researches, this paper brings forward the model for customer general value which including history value (HV), current value (CV) and potential value (PV) etc. After three kinds values are discussed, this paper infers the practical model for calculation. Combined the facts of logistics en References | Related Articles | Metrics

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Calculating of the drawing oil’s viscosity based on the regression analysis XIA Liang-yao, MA Lin-cai 2004, 23(5): 109-111.  Abstract ( )   PDF (125KB) ( )   The viscosity of lubricating oil is a very important performance parameter, it changes with the temperature. The drawing oil’s viscosities at different temperatures were tested in this paper. By the regression analysis method, the very evidently equation was given about the viscosity and the temperature. The equation reveals that there lies in an exponential relationship between the viscosity and the temperature References | Related Articles | Metrics

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Prediction on the private car quantity in the city WANG Zheng-wu,XIAO Zheng-jun 2004, 23(5): 112-114.  Abstract ( )   PDF (1001KB) ( )   The rapid increasing of the private car not only impulses the development of the city economy, but also brings very serious transportation problem. To mitigate the pressure of car transportation, the private car quantity must is reasonably programmed. First, the paper analyzes and compares the current prediction model on the private car quantity. Then joining together our country car stage and considering the transportation’s supply and demand relation and its manifestation, the bilevel program References | Related Articles | Metrics

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Strategy research on the development of urban vehicles possession ZHAI Chang-xu, ZHU Shun-ying, PAN Yan-rong 2004, 23(5): 115-117.  Abstract ( )   PDF (704KB) ( )   With the foundation of the computational theory of generalized capability of urban road network,through computing the road network capability of planning year, then making certain the restricted possession of vehicles of planning year from the balanceable angle of supply and demand,which offers the important decision_making basis for the development programming of urban vehicles. Finally,calculate the development status of the vehicles of the urban zone of Chongqing according to the models of co... References | Related Articles | Metrics

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Preliminary study on incipient mechanism and incipient velocity of uniform sediment on reunite slope LIU Li , YANG Cheng-yu , HE Guang-chun 2004, 23(5): 118-121.  Abstract ( )   PDF (153KB) ( )   The researching conditions of incipient velocity of sediment are analysed.Some formula on incipient velocity are reviewed and evaluated. With the aid of experiment data,the differences of velocity on reunite slope and on slight slope are analysed. This is helpful for the use of incipient velocity in practice and research. References | Related Articles | Metrics

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Synchronous observation and evaluation for the water quality in Three Gorges reach WANG Miao-lin , , FU Hua , LU Ping-yu 2004, 23(5): 122-125.  Abstract ( )   PDF (196KB) ( )   The effect of the construction of Three Gorges project on the water quality in the reservoir have and will have attracted widely many experts’ interests from abroad and inland. It is important to carry on the observation and evaluation for the water quality in Three Gorges Reach. The changes of the water flows and quality along the Yangtze River in the reservoir during two representative observation phases were introduced. And the gray relation model was used to evaluate the water quality of fou... References | Related Articles | Metrics

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The relationship between rotation body (or plane) and the generating plane curve HU Guo-quan 2004, 23(5): 126-127.  Abstract ( )   PDF (78KB) ( )   the relationship between plane(or body) used in engineering structures and the generating plane curve is stuelied in the paper.Two inaportent relation ecpresses are given and some questions related to use of the expresses are given and some questions related to use of the expresses are discussed. Two conclusions are reached References | Related Articles | Metrics

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Continuous selection and fixed point theorems in L-convex spaces TANG Jing-rong 2004, 23(5): 128-129.  Abstract ( )   PDF (108KB) ( )   In this paper,A new selection theorem is given in L-convex spaces, generalizing the result of Ding. Moreover, we express that there are two contradict conditions in Lin, and get right results. A fixed point theorem and a coincidence theorem in L-convex spaces are also obtained References | Related Articles | Metrics

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The research on random service system of the intranet of university XIE Xiao-dong 2004, 23(5): 131-134.  Abstract ( )   PDF (143KB) ( )   In this paper, we analyse the issues that the level of internet service conflicts with the limited sources of internet service system in most intranet of universities, and we set up a math model about it and find out the solvent of this issues by using the queueing theory, so that the intranet of university can work more efficient than before and the user in the intranet of university can get higher level of service than before too References | Related Articles | Metrics

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The scientometic indicators for Journal of Chongqing Jiaotong University and their ranks from 1997～2002 FAN Wen-tian 2004, 23(5): 135-137.  Abstract ( )   PDF (126KB) ( )   The general knowledge about the 41 source journals of transportion discipline elected in the Chinese S & T Journal Citation Reports (CJCR) from 1997-2002 are introduced. The 20 scientometic indicators for Journal of Chongqing Jiaotong University (JCTU) in same years are abstracted. According to the magnitudes of these indicators the ranks for JCTU are given between the source jounals. Some suggestions for increasing the indicators of JCTU are offered References | Related Articles | Metrics