Archive

15 August 2004, Volume 23 Issue 4 Previous Issue    Next Issue

---

For Selected:

Download Citations EndNote Ris BibTeX

Toggle Thumbnails

Select

Non-linear stability analysis for process of heat treated chord member for arch-bridge of CFST LUO Ming , LIU Xiao-yu , WANG Xue-qin 2004, 23(4): 1-3.  Abstract ( )   PDF (146KB) ( )   The process of heat treated chord member for arch-bridge of CFST are analyzed by non-linear stability analysis through "ANSYS". With disparate temperature, diameter and diameter-thickness ratio, the discriminant for buckling moment is found out. From this, the method of heat treated chord member for arch-bridge of CFST is suggested References | Related Articles | Metrics

Select

Study on behaviors of pile group under rigid cap in bridge Engineering GU Xiao-an, LU Ming-kang, TEN Yu-min, SHI Ming-lei 2004, 23(4): 4-8.  Abstract ( )   PDF (1569KB) ( )   One hybrid method of finite element analysis of rod structure coupling with load transfer approach for piles groups settlement was estabished.The behavior of shear-diaplacement of the boundary between pile and ground was determined by the Randolph and Wroth’Model in the approached closed form solution,coupling with the hyperbolic model.The action of pile groups was evaluated from the Mindin equation solution,and adjusted by the "reinforcement and curtain"action approximately.The influences of nu References | Related Articles | Metrics

Select

Application of TL2000 road strengthen dose to the preventive maintenance project for Chongqing Egongyan bridge’s deck HU Juan , ZHOU Shui-xing , FAN Cao-yuan 2004, 23(4): 9-11.  Abstract ( )   PDF (216KB) ( )   This essay has introduced the main characteristics of TL2000 road strengthen dose and its construction method,and its application on Chongqing Egongyan bridge’s deck project. Measured data expresses that TL2000 strengthen dose, which is applicable to the preventive maintenance of deck of steel box beam, can improve effectively anti-permeability of deck. References | Related Articles | Metrics

Select

Experimental study about short concrete column limited with CFRP under axial load YANG Qing-guo , YI Zhi-jian , ZHOU Chao 2004, 23(4): 12-15.  Abstract ( )   PDF (223KB) ( )   Carbon Fiber Reinforced Plastics (CFRP), a new kind of engineering material is widely used in civil engineering to strengthen old structures. The article studies the performances of short concrete column limited with CFRP under axial load in lab and compares them with that of short common concrete column and concrete column with spiral reinforcement. Experiments show that under axial load the short concrete column limited with CFRP has an amazingly higher lording capacity. The article is helpful References | Related Articles | Metrics

Select

Study on Zhangjiang bridge pavement deck reinforce and repair HUANG Zh-i qiang, LEI Jian 2004, 23(4): 16-18.  Abstract ( )   PDF (145KB) ( )   This paper has analyzed the disease harms of channel girder bridge and Zhangjiang bridge pavement deck, and introduced adopting two layer loading shear tendon measure etc, to reinforce and repair. Provide reader consulting References | Related Articles | Metrics

Select

Research review of diagnosis on the damage of hydraulic concrete WANG Ji-cheng, XU Xi-bin, ZHAO Ming-jie 2004, 23(4): 19-23.  Abstract ( )   PDF (706KB) ( )   In this paper, the present situation of the NDT of hydraulic concrete and damage concrete are summarized in detail on the basis of extensive reference of literature.The authors’ new way for the further studies is given in the end References | Related Articles | Metrics

Select

The present situation and prospect of the acoustoelastic stress measurement technology in concrete LIN Jun-zhi, XU Xi-bin, ZHAO Ming-jie 2004, 23(4): 24-29.  Abstract ( )   PDF (1086KB) ( )   On the basis of extensive reference of literature, the present situation of the acoustoelastic stress measurement technology in concrete is summarized in detail in this paper. The author’s opinion for the futher studies is given in this paper References | Related Articles | Metrics

Select

Development of performance-related specifications for Asphalt pavement LI Qiang, SHE Xiao-hong, QIU Yan-jun 2004, 23(4): 30-33.  Abstract ( )   PDF (187KB) ( )   Increasing use of performance-based mix design and analysis requires development for performance-related specifications. The purpose of this paper is to provide an overview of the framework and development of the performance-related specifications (PRS) from previous studies. At the same time, methodology in developing the PRS is collected along with samples of specifications developed during NCHRP10-26 research project and west track project References | Related Articles | Metrics

Select

Application on fiberglass gridiron in old concrete road surface strengthening CHEN Zhong-jian 2004, 23(4): 34-36.  Abstract ( )   PDF (103KB) ( )   The paper analyze forming reason of the reverberation crack of road surface and the functional mechanism of fiberglass from the renovation of the old cement concrete road surface of Hainan Eastern Highway,The thesis affirm the positive effect that fiberglass gridiron can effectually restrain and reduce the reverberation crack of the bitumen concrete road surface and then to prolong the life-span of road surface by observation and contrast analyse of the testing road section of the renovation pro References | Related Articles | Metrics

Select

Review of debris flow research in highway( I) TANG Hong-mei, CHEN Hong-kai 2004, 23(4): 37-43.  Abstract ( )   PDF (231KB) ( )   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 folw, control technique of debris flow, debris flow testing and disaster appraise. It are analyses and appraise in detail in this paper that subject system of debris flow and debris flow classification, formation of debris flow, model of debris flow mass, movement and impact of debris flow. Further approach the necess-i ty to found debris flow in highway. The review is useful to control effectively debris flow disaster in highway References | Related Articles | Metrics

Select

Research on try shrinking property of stabilized shale soil used as pavement base HE Zhao-yi , LIU Qing-qian , HUANG Wei-rong , ZHANG Hai-long , CHEN Xue-wen 2004, 23(4): 44-47.  Abstract ( )   PDF (238KB) ( )   In this paper, the try 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 try shrinking property,they are used as References | Related Articles | Metrics

Select

Slil-stone embankment models and wave testing of compaction degree WEI Gang, ZHAO Ming- jie, HUANG We-i dong, WU Guo-xiong 2004, 23(4): 49-53.  Abstract ( )   PDF (812KB) ( )   In this paper wave testing is use for checking compaction degree of soil-stone embankment models.Major factors are discussed including particle size of stone,percent of stone and machine of compaction.New wave testing method is proposed,the results of which are compared with traditional method show the accuracy and reliability of the wave testing. References | Related Articles | Metrics

Select

Research for soil-parameters back analysis and displacement prediction of deep excavation LI Quo-wei , LI Wen-biao 2004, 23(4): 54-56.  Abstract ( )   PDF (161KB) ( )   Based on the direct analysis of two dimensional finite element method of deep excavation, author makes back analysis of soil parameters in deep excavation considering soil disturbance. According to the uncertainty of deep excavation, the best optimization for back analysis and prediction for displacement of excavation are build up based on back analysis model. The program of back analysis has been drawn up References | Related Articles | Metrics

Select

Embankment settlement calculation after dynamic consolidation LIU Zh-i ling 2004, 23(4): 57-59.  Abstract ( )   PDF (156KB) ( )   It is considered that little settlement would occur after dynamic consolidation if criterion of stopping tamping is carried out. At the same time, it is difficult to obtain soils’ strain properties after dynamic consolidation, so settlement calculation after dynamic consolidation is often ignored. But during analysis of settlement of Qingyuan third bridge’s highway, it was founded that enough settlement of embankment happens on foundations after dynamic consolidation. So the relation between CPT References | Related Articles | Metrics

Select

The calculation analysis and study on pressure circle spray reinforcement of the stake foundations subsidence CHEN Ta-i rui 2004, 23(4): 60-63.  Abstract ( )   PDF (704KB) ( )   Introduce the L circle bridge of some separate cloverleaf junction 144.94m long six stretch continual ridges. The construction of the main structure of the bridge floor was finished.After some areas were re-filled with soil,some stake foundations were found to subside in varying degrees.Through the calculation and analysis of the stake foundations subsidence,the plan of single pipe and three pipes stake foundations pressure circle spray reinforcement was adopted,and the stake foundations were re References | Related Articles | Metrics

Select

Analyze of compaction technology and method to eolian sand roadbed CAO Yuan-wen, LI Zh-i yong , LIANG Na-i xing 2004, 23(4): 64-67.  Abstract ( )   PDF (155KB) ( )   Concerned with compaction property of the Eolian Sand, in this paper the compaction technology and method of the Eolian Sand roadbed, from the pressure, vibration acceleration, working speed, depth of the Eolian Sand layer and compaction number is analyzed. The study conclusion really benefits from the execution References | Related Articles | Metrics

Select

Line-fly ash sand synthesize performance research LI We-i guang, WU Yan-lin, SHEN A-i qin 2004, 23(4): 68-72.  Abstract ( )   PDF (1682KB) ( )   Using LFAS in semi-rigid basement is not only economic but also beneficial to environment, because it don’t need destroy mountains. But it exits several problems, such as how to control Ф(max) of sand, the separation-phenomenon,low strength , all of these limited the usefulness of LFAS. In this paper,by the synthesized-research of inner-experiments , laying 10 kinds of trail-road,including eight LFAS and two LFAG roads. And also doing research of how to control Ф(max) of sand, suitable Фmax, c References | Related Articles | Metrics

Select

Risk zoning and assessment of loose earth landslides along the bank of the Chongqing Resservoir TANG Hong-mei, CHEN Hong-kai, , TANG Fen, LIN Xiao-song 2004, 23(4): 73-77.  Abstract ( )   PDF (1398KB) ( )   Taking Tiancheng primary experiment school landslide as an example authors make some sensitive analysis to risk factors of Landslide disaster and found assessment method of risk zoning in this paper. The method include fours step, the fist select eight risk factors through grey assemble theory and connected degree, and the second is endowing value to every factor in the Analytical Hierarchy Process (AHP) and the Dephel method. The third is calculating risk index through GIS system to Tiancheng p... References | Related Articles | Metrics

Select

Study on operating speed of vehicles on expressway GAO Jian-ping, , KONG Ling-qi , GUO Zhong-yin , WU Zh-i hui 2004, 23(4): 78-81.  Abstract ( )   PDF (160KB) ( )   Safety and efficiency are two permanent issues for highway design and management. Transportation efficiency has a tightly relation with operating speed, moreover, among all accidents, there is about one-third correlated with operating speed. From points of operation characteristic and safety demand of vehicles on expressway, this paper makes a systemic study on operating speed, and finally, both operating speed and acceleration (deceleration) prediction models of vehicles on expressway are estab... References | Related Articles | Metrics

Select

The highway traffic safety forecast research base on GPS and GIS CAO Zh-i xiang, ?? HUANG Xian-gui 2004, 23(4): 82-84.  Abstract ( )   PDF (402KB) ( )   A new system method about the traffic safety forecast base on GIS and GPS is advanced in this paper,control the car status according to the position of the vehicle on the highway, and proceed to the safe forecast of vehicle. The new applied space of the intelligent transport system will be expanded, and will have the tremendous economy with the social and latent worth in the applications of GPS and GIS References | Related Articles | Metrics

Select

How to against the collusion of road passenger transportation inside problem LIN Wu , , HUANG Cheng-feng , YANG Xiu-tai 2004, 23(4): 85-89.  Abstract ( )   PDF (155KB) ( )   Collusion is a serious problem, at the same time, is a very tough problem again, in road passenger transportation;This text analyze to collusion the formative and inside mechanism ,is base on game talking about foundation of entrust the agency theories;Make use of the rules system theories, mechanism how to against collusion is designed in road passenger transportation References | Related Articles | Metrics

Select

Study on private automobile development control policy of municipality in China ——Base on report of Shanghai automobile development control policy LIU Shu-hong , WU Jia-you , WANG Yan-jun , XU Peng 2004, 23(4): 90-93.  Abstract ( )   PDF (537KB) ( )   The tendency of urban mechanization can’t be reversed with rapid development of China economic. Since 2000 Shanghai had controlled automobile irregular increase successfully by automobile license tag auction. In this paper, base on appraising of the auction policy, a model for automobile increase was erected and a quantity guideline was suggested. References | Related Articles | Metrics

Select

The inner and outer calculating unionization of plan route entity in highway reconnaissance design LIU Jian-feng , YU Tao-wen 2004, 23(4): 94-96.  Abstract ( )   PDF (113KB) ( )   Firstly, this paper uses a sample indicating the difference of two programs that deal with the same complex curve line. Secondly , this paper analyses the reason for the difference. After which this paper makes the conclusion for the importance of using the same calculating model in the design and reconnaissance of the highway project References | Related Articles | Metrics

Select

Research of electrohydraulic proportional control system for multi-wheel independent steering technology CHEN S-i zong, SHU Jin, YANG Lin 2004, 23(4): 97-99.  Abstract ( )   PDF (138KB) ( )   The important practical significance of the multi-wheel independent steering technology is expatiated at the beginning here. Then the overall design of multi-wheel independent steering system and its control strategy are illuminated. According to these, the construction of the electrohydraulic proportional control system with CAN bus and the flow about the establishment of CAN communication are formulated in details by this paper. Finally, the road test of four-wheel independent model car in my References | Related Articles | Metrics

Select

The study and manufacture about the on-line detection device of the vehicle redirectors LIU Xiao-gen , DU Z-i xue , YANG Zh-i gang , LAN Xiang-wen , CHEN Chang-yun 2004, 23(4): 100-102.  Abstract ( )   PDF (177KB) ( )   The paper studies the on-line detection device of the vehicle redirector, and explains the hardware compositions, works principle and software design. In the debug process, it mainly illustrates the measure of the data treatment and the skill of the program control, and attains the requirement of highly efficient check and automatic control consequently. References | Related Articles | Metrics

Select

The anti-jamming step about the unloaded torque measure of the vehicle redirectors LIU Xiao-gen , YANG Zhi-gang , DU Zi-xue 2004, 23(4): 103-106.  Abstract ( )   PDF (139KB) ( )   The unloaded torque detection system of the vehicle redirector is the study target in the paper. The authors adopt the hardware and software methods to clear up the interference signal that affects the measure of redirector unloaded torque, so that the redirector unloaded torque is measured more accurately and reliably References | Related Articles | Metrics

Select

Engine cylinder flow analyse based on moving mesh technology WU Zhuang-wen , DU Zi-xue 2004, 23(4): 107-109.  Abstract ( )   PDF (132KB) ( )   This paper sets up a CFD model of 4-stroke engine, and, gives the four strokes, intake and exhaust flow simulation and analyses.It optimize the project of engine cylinder internal flow field. So, it can provide a reference for the application of CFD in engines References | Related Articles | Metrics

Select

ADAMS and the application of it in the dynamic simulation analysis of automobiles MA Yu-kun, JIA Ce, LUAN Yan-long, HU Zhi-guo 2004, 23(4): 110-113.  Abstract ( )   PDF (1653KB) ( )   this paper gives a brief concept and the research methods of dynamic analysis, and introduces the basic theory and the calculational methods of the ADAMS software. At last, it introduces the application of ADAMS in the dynamic simulation analysis of the automobile References | Related Articles | Metrics

Select

Management of maintenance and repair quality of the public security fire-fighting vehicles YUAN Wei-cai , LIU Jian-xun 2004, 23(4): 114-116.  Abstract ( )   PDF (100KB) ( )   In the new situation of fire, it is necessary to reinforce the management of maintenance and repair quality of the public security fire-fighting vehicles. To enhance the management of maintenance and repair quality of the fire-fighting vehicles, we should first start with the education, and secondly establish the perfect quality guarantee system; At present, "Three Inspections" system, maintenance and repair record system and the staff training system are the main problems to be settled; In the References | Related Articles | Metrics

Select

Mathematical model on sediment yield of middle/small watershed at the area of the Three Gorges Reservoir ZHANG J-i sheng, WANG Ping-yi, LIU Ya-hui 2004, 23(4): 117-120.  Abstract ( )   PDF (1443KB) ( )   This paper is to study a sediment yield model of middle / small watershed at the area of Three Gorges Reservoir. Based on the influence of environmental factor on the sediment yield from watershed, a calculation formula of the sediment yield from watershed is deduced. With the calculation formula of water flow, a mathematical model with clear conception and definite process and complete structure of sediment yield from watershed is developed. The model is verified with measured data of some bas References | Related Articles | Metrics

Select

The fixed-bed model test of the channel regulation on the Luxikou waterway of Changjiang river CHEN Gu-i fu, DU Zhong-wei, SHU Rong-long 2004, 23(4): 121-124.  Abstract ( )   PDF (195KB) ( )   Through the fixed-bed flow model test and bed development analysis,the preliminary plan of the channel regulation on the Luxikou waterway has been put forward,which can be referred to the engineering feasibility study References | Related Articles | Metrics

Select

The use of Smith predictor in discharge measurement and control system for unsteady flow hydraulic ZHAO Guo- chang, LI Xiao-biao, ZHANG Xu-jin, XIE Dong 2004, 23(4): 125-127.  Abstract ( )   PDF (131KB) ( )   To overcome the large delay in discharge measurement and control system for unsteady flow hydraulic, Smith predictor is proved to be an effective way to deal with large delay objects References | Related Articles | Metrics

Select

Decision for preventing collisions　and Fairway innovation in the Three Gorges Reservoir DING Ji-min , YANG Jian-guo 2004, 23(4): 128-131.  Abstract ( )   PDF (135KB) ( )   According to characteristic of fairway and ship traffic flow after sluicing in the Three gorges reservoir, the text bring a basic principia of ship fairway innovation on basis of ship location scheme; also put forward decisions for preventing collisions of head-on situation, overtaking and crossing situation from geometrical model of ships meeting References | Related Articles | Metrics

Select

A new algorithm for special solution of linear differential equation HE Qing-bi 2004, 23(4): 132-134.  Abstract ( )   PDF (109KB) ( )   In this paper, a new algorithm is proposed for special solutions of linear differential equations Pn（D）x=Pm（t）eλt. References | Related Articles | Metrics