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2002 Vol. 19, No. 4
Published: 2002-04-15
 
1 APPROACH OF RAILWAY LOCATION SCHEME RESEARCH METHOD FOR THE EXISTING RAILWAY SPEED-RAISING
HU Xu-hong
This paper expounds the research method of alignment scheme of the Existing Railway Speed-Raising renovation. It put forward the standpoint that the alignment scheme research of Existing Railway Speed-Raising renovation must be divided into some paragraphs integrating with the condition of the Existing line's facility and the condition of the topography, geology along the railway line etc.
2002 Vol. 19 (4): 1-4 [Abstract] ( 2475 ) HTML (1 KB)  PDF  (215 KB)  ( 122 )
5 ANALYSIS ON NECESSITY OF REFORM OF RAILWAY DOWN DIRECTION SYSTEM AT SHANHAIGUAN STATION
NIU Hui-xiang
In the research works on electrification reform engineering project of Tianjun-Qinhuangdao-Shenyang Railway, there were multi-opinions concerned with the problem having the necessity of reform the down direction system at Shanhaiguan Station for enlarging its capacity or not. From several aspects concerned with traffic organization, formation of car flow, capacity of station，etc, the paper analyzes the existing problems in which the down direction system should not be reformed and its solving scheme，so as to explain the necessity of its reform.
2002 Vol. 19 (4): 5-11 [Abstract] ( 2507 ) HTML (1 KB)  PDF  (282 KB)  ( 94 )
12 DESIGN OF TRACK LAYING WITH FLOATING PLATE
YAN Hua, YAO Li
Accompanied with the rapid development of unban rail transit in home，the problems of vibration and noise pollution produced during operation became more and more conspicuous. The paper describes briefly the necessity of decreasing vibration and reducing noise in metro, as well as the types of anti-vibration track adopted in foreign countries in the world. The design of anti-vibration track with floating plate and its application in Guangzhou Metro are introduced emphatically also in this paper.
2002 Vol. 19 (4): 12-15 [Abstract] ( 2555 ) HTML (1 KB)  PDF  (349 KB)  ( 218 )
16 JAPANESE INSTITUTIONS OF URBAN RAILWAY TRANSIT
SUN Zhuang-zhi,ZHOU Xiao-qing，HU Si-ji
The urban railway transit of our country is now in a rapid developing period, but we are lack of a perfect institution system about it. Japan is one of the countries with the most developed urban railway transit system in the world. This paper introduces the Japanese institutions about financing, tax system, and ground exploitation along the railway line in the constructions of urban railway transit. This will be helpful in formulating the institutions of our urban railway transit constructions. According to the situation of our country， some corresponding suggestions are presented.
2002 Vol. 19 (4): 16-19 [Abstract] ( 2494 ) HTML (1 KB)  PDF  (322 KB)  ( 451 )
20 TUDY AND PRACTICE OF HIGH-SPEED HEAVY RAIL WELDABILITY OF QINSHEN DEDICATED PASSENGER LINE
YANG Lai-shun，OU Yang-quan, XUE Hong-xi
High-speed railway asks for strict criteria of chemical composition, physical mechanics and size deviation of rails. It also asks for superior quality of welding joint of the CWR on extra long seamless tracks. The paper，based on great number of tests carried out for rail butt weld technology, studies the weldability of high-speed heavy type mould casting PD3 steel rail made by Panzhihua Steel Mill and the gang-mould casting PD3 60 kg/m steel rail made by AnshanSteel Mill. The study has improved the quality of the rails to meet with the technical requirement of the Standard of Rail Welding Industry and the Technical Specifications of 200 km/h Rails of MOR. The random check of welds in the production base shows that the quality of weld is reliable and the property is stable.
2002 Vol. 19 (4): 20-25 [Abstract] ( 2531 ) HTML (1 KB)  PDF  (358 KB)  ( 299 )
26 ELEMENTARY RESEARCH ON THE OVERTURNING STIFFNESS OF TRACK UNDER LOAD
LIU Yong-jun
The load of wheel will effect the geometrical shape of track. It has great influence on the security of train. 1n this paper, a finite element model of track has been established. The decrease of clamping force of fastener, the gauge widening and the rail overturning are discussed.
2002 Vol. 19 (4): 26-27 [Abstract] ( 2533 ) HTML (1 KB)  PDF  (213 KB)  ( 218 )
28 COMPARISON INVESTIGATION ON WHEEL/RAIL INTERACTION BY CHANGING THE LATERAL STIFFNESS OF THE CURVED TRACK
ZHU Jian-yue，DONG Guang-yan, LI Li，LUO Yan-yun
According to the characteristic of wheel/rail interaction in the railway tracks，this paper establishes a simple lateral track model under lateral shock force. Based on a series of hypothesis, the program of wheel/rail dynamic interaction has been worked out depending on MATLAB Simulink?.. The dynamic effect of the rail fastener as well as the ballast lateral stiffness on the transverse vibration characteristics of wheel/rail system and rail wears on curved track are investigated as they have been varied. The results show that the Wheel/rail interaction would be improved and rail wears could be alleviated through selecting rational parameter of curved track.
2002 Vol. 19 (4): 28-32 [Abstract] ( 2539 ) HTML (1 KB)  PDF  (281 KB)  ( 145 )
33 ENGINEERING GEOLOGY DIVISION OF PLATEAU PERMAFROST AREA BY REMOTE SENSING
ZHUO Bao-xi
It has great advantage in plateau permafrost area applying remote sensing technique to approach engineering geology diveision. Qing hai-Tibeten plateau permafrost are a has been divided into three geological regions and further to ten sub-regions. The works of selecting Qingzang railway line may be as a example to illustrate the effection of remote sensing interpretation in engineering geology divisi on of plateau permafrost area. The interpreting features of these geological regions in Qinzang plateau permafrost area are mainly expounded.
2002 Vol. 19 (4): 33-36 [Abstract] ( 2481 ) HTML (1 KB)  PDF  (862 KB)  ( 132 )
38 LINEAR ANALYSIS OF INTERACTION FOR FLEXIBLE GROUPED PILES AND SOIL UNDER RIGID CAP
LIU jie, ZHANG Ke-neng
Based on linear load deliver function to pile-side soil and pile-end soil, and considering influence of sharing load of the pile-side soil on load deliver law of piles, Using mechanics theory and approximate solution method-district method of differential equation, approximation analytical formulas of interaction for the flexible grouped piles and soil are derived under rigid cap. The maximal pile-side friction force of central pile show up in pile-end, the maximal pile-side friction force of edge pile and angle pile show up near pile-top, under rigid cap.The pile-top counter force of the angle pile is the biggest，the edge pile is the second，the central pile is the smallest. To verifying the reliability of the proposed method, the results of the model test are compared with the results in this paper. contrast snunciation; the proposed method has good precision.
2002 Vol. 19 (4): 38-43 [Abstract] ( 2521 ) HTML (1 KB)  PDF  (286 KB)  ( 123 )
44 TECHNIQUE ON TREATMENT OF KARST FOUNDATION
LI Ya-wu
Dealing with the tunnel foundation of subway during passing through the karst geology, the combination of techniques，such as Titling, rotary spraying, sleeve-tube grouting，etc，are adopted to reinforce the soft ground and to seal the karst cracks. Good effect has been obtained by the comprehensive application of the corresponding technologies.
2002 Vol. 19 (4): 44-49 [Abstract] ( 2499 ) HTML (1 KB)  PDF  (335 KB)  ( 199 )
50 ENGINEERING GEOLOGICAI IN PERENNIALLY FROZEN GROUND OF QINGZANG RAILWAY
DU Shi-hui
According to working experience in Qingzang railway, the engineering geology of perennially frozen ground is descripted in detail. Meanwhile, the main construction engineering geology is given pride to the comrades for reference.
2002 Vol. 19 (4): 50-52 [Abstract] ( 2511 ) HTML (1 KB)  PDF  (226 KB)  ( 80 )
53 APPLICATION OF PRESTRESS TECHNIQUES FOR REINFORCE OF STRUCTURE AND REFORM OF ENGINEERING PROJECTS
MENG Qing-feng
Through engineering practices, the paper introduces two kinds of construction methods in detail, i.e. the prestress technique out of structure body and the precast of prestressed concrete members. They are valuable to be popularized for reinforce of structure and reform of engineering projects.
2002 Vol. 19 (4): 53-55 [Abstract] ( 2523 ) HTML (1 KB)  PDF  (234 KB)  ( 143 )
56 PRELIMINARY DISCUSSION ON RELIABILITY DESIGN OF TUNNEL LINING STRUCTURE
ZHAO Wan-qiang
From the viewpoints of establishing the equation of limiting state of the tunnel structure, the calculation of statistic character or its variables, the calculating method of reliability index of the structure, analysis of the reliability index, etc, the procedure of special design on structure of tunnel lining according to the reliability theory and its existing problem ,as well as the relative informations which should be taken into attentions ,are expounded in this paper .It provides references for the application of the new Railway Tunnel Design Standards and hereafter popularizing the reliability theory on the applications in the tunnel .
2002 Vol. 19 (4): 56-60 [Abstract] ( 2548 ) HTML (1 KB)  PDF  (382 KB)  ( 189 )
61 TECHNOLOGY OF TREATMENT FOR KARST ENCOUNTERED IN TUNNEL CONSTRUCTION
LI Zhi-guo
Karat is a geological phenomenon that is usually encountered in tunnel construction. It could lead to water spraying and mud flowing from excavation face and deformation, cracking and collapse of ground and lining. Therefore, it will affect the construction speed，jeopardize the safety of construction and spoil the environment. 1n this paper, the principle of treatment for the karat is presented and the methods of dealing with the karat are discussed for different type of karst. Moreover, the construction practice is introduced.
2002 Vol. 19 (4): 61-67 [Abstract] ( 2503 ) HTML (1 KB)  PDF  (497 KB)  ( 221 )
68 GREAT EMPHASIS ON APPLICATION OF ISOTOPE TECHNIQUE TO STUDY OF TUNNEL GROUNDWATER ENVIRONMENT
LIU Dan
Based on the data collected and engineering practice, the paper deals with the necessity to carry out environment isotope study in reconnaissance and construction of tunnels. The functions of environmental isotope techniques and the main problems occurred in their applications to tunneling are presented. And it is pointed out emphatically that the great attention should be paid to the application of isotope techniques to study of tunnel groundwater environment in order to improve the level of our tunnel survey.
2002 Vol. 19 (4): 68-70 [Abstract] ( 2519 ) HTML (1 KB)  PDF  (306 KB)  ( 193 )
71 CONSTRUCTION TECHNOLOGY OF CAVITY SECTION PDK354+255~+275 IN PARALLEL HEADING AT INTAKE PORTAL OF YUANLIANG MOUNTAIN TUNNEL
ZHANG Min-qing, HAN Zhan-bo, SUN Guo-qing
Yuanliang mountain tunnel is the longest tunnel in Yuhuai railway-line. Passing through high tension and richness water area，the construction of the tunnel is full of difficulties. It is intituled as the "forbidden zone of tunnel design and construction in China". The text introduces the geology advance forecast，advance grouting reinforce and timbering, grouting effect check-up and the construction process in cavity section PDK354+255~+275 of the tunnel. It offers reference for the similar projects in the future.
2002 Vol. 19 (4): 71-78 [Abstract] ( 2512 ) HTML (1 KB)  PDF  (470 KB)  ( 201 )
79 ELEMENTARY ANALYSIS OF MICRO-CRACKS ON FORMWORKING CON- CRE TE LIN IN GIN TUNNEL
CAO Xiao-lin
By applying the method of mechanics and combined with the construction situation of railway tunnels, the analysis on the loading situation of the structure of the formworked concrete lining in the single track railway tunnel with the surrounding rock of above IV class has been put forward, and the comparisons with the actual situation of cracks on the tunnel lining are put forward also in this paper. The courses of producing mi-cro-racks on tunnel lining are expounded, and the suggestions to avoid producing cracks are proposed.
2002 Vol. 19 (4): 79-81 [Abstract] ( 2540 ) HTML (1 KB)  PDF  (130 KB)  ( 94 )
82 ELASTOPLASTIC DESIGN THEORY OF BOLT-SPRAYING SUPPORTING AND ITS ENGINEERING APPLICATION
WU Bo, GAO Bo, GUAN Bao-shu
Based on elastic-plastic theoretical analysis, by combining its mechanics mechanism，this paper discussed the qualitative and quantitative design method of bolt-spraying supporting, and the method is applied to tunnels in the " West gas transported to the East” pipe line. It is being proved by real engineering, the method introduced in the paper is reasonable and gives important reference to similar engineering.
2002 Vol. 19 (4): 82-85 [Abstract] ( 2503 ) HTML (1 KB)  PDF  (132 KB)  ( 179 )
86 FEASIBILITY ANALYSIS CONCERNED WITH CONSTRUCTION WUXIAOLING TUNNEL BY ADOPTING TBM
LIU Chun
Wuxiaoling tunnel during double-tracking of Lanzhou-Wuwei section in Lanzhou-Xinjiang Railway with a total length of 20. 050 km will be the longest tunnel in China. The paper introduces the geological situations of the tunnel. Combined with several successful examples in home and abroad in which the TBM was adopted for tunnels' construction，the feasibility of adopting TBM to construct Wuxiaoling tunnel and the reasonableness of its design are expounded in this paper. It will provide powerful guarantee and a foundation for the construction of Wuxiaoling tunnel.
2002 Vol. 19 (4): 86-90 [Abstract] ( 2565 ) HTML (1 KB)  PDF  (156 KB)  ( 152 )
91 SELECTION AND PURCHASE OF CONSTRUCTION KEY MACHINERY QUIPMEN TS FOR BRIDGE ERECTION AN D TRACK LAYING ON QIN-SHEN DEDICATED RAPID PASSENGER TRAFFIC RAILWAY LINE
XUE Lin
Based on the technical standards and the construction organizations of the Qin-Shen dedicated rapid passenger traffic railway line, the overall processes concerned with the complete setting, selection, purchase and application of the construction machinery equipments for bridge erection and track laying of Qin-Shen railway line are summarized in this paper. The practices show that the complete setting and selection process of construction machinery for Qin-Shen railway linewas very scientific, and the complete setting of machinery was advanced and with high efficiency. It provides experience on complete setting of construction machinery for large- scale engineering project in the future.
2002 Vol. 19 (4): 91-95 [Abstract] ( 2503 ) HTML (1 KB)  PDF  (150 KB)  ( 122 )
96 EFFECT ON METALLOGRAPHIC ORGANIZATION AND MECHANICS PROPERTIES OF WELDING RAIL. JOINTS BY FLAME NORMALIZING
DIN G Wei, HUAN G Cheng-kui, YAN G Lai-shun, GAO Wei-hui, ZHANG Zhen, WAN G Gui-shan
The flame normalizing treatments were put forward on steel rail with flash welding, gas pressure welding and aluminium heat welding. At the same time, the comparisons of metallographic organizations and mechanics properties among the normalized rail, non-normalized rail and steel rail themselves were put forward also. The results show that through the flame normalizing treatment, the original austenitic crystalline grains maybe fined obviously，the percentage elongation and the shock efficiency of rail joints with flash welding, gas pressure welding and aluminium heat welding may be raised, and the tensile strength of rail joints with aluminium heat welding may be enlarged obviously. And by the flame normalizing, the requirements of TB/T1632-1991 on the mechanics properties may be obtained for the rail joints with flash welding and gas pressure welding?
2002 Vol. 19 (4): 96-98 [Abstract] ( 2464 ) HTML (1 KB)  PDF  (181 KB)  ( 195 )
99 TE CHN ICAL SYSTEM S FOR RE FORM & EXTENSION OF ELECTRIFIED RAILWAYS
CHEN Wu, SHAAN Zhen-gang, WU Guo-sheng
Based on the conception of technical system for the newly-built electrified railway project, the clas-sifications and their corresponding technologies of the construction technical system for reform and extension of the existing electrified railways are proposed. It provides reference to understand systematically the complex characters of their construction technologies.
2002 Vol. 19 (4): 99-102 [Abstract] ( 2497 ) HTML (1 KB)  PDF  (123 KB)  ( 112 )
103 PRELIMINARY TALKING ABOUT SUPERVISION OF CON STRUCTION WORKS FOR RAILWAY ELECTRIFICATION ENGINEERING PROJECT
HU Yi-zhou
The necessities to put forward the electrification of railways are expounded in this paper concerned with the following aspects the properties of the supervision on construction works for the railway electrification projects, working out its implemental regulations, implement of supervision on construction items during different construction stages, summary of supervision works, etc. At the same time, particular suggestions are proposed concerned with its serviceability. The existing problems during the implemental course are analyzed qualitatively also in this paper.
2002 Vol. 19 (4): 103-106 [Abstract] ( 2511 ) HTML (1 KB)  PDF  (126 KB)  ( 143 )
107 STUDY ON TEMPERATURE RAISIN G OF MICRO-EXPANSIVE CON CRETE WITH Mg0 MIXED OUTSIDE FOR CON STRUCTION OF MAJOR DAM OF A RE SERV OIR
HU Qing-ju, WANG Cai-gao
During construction of the major dam of a reservoir, a new construction technique was adopted by using the micro-expansive concrete with MgO mixed outside, in which the heat due to hydration was reduced. The temperature supervision was enhanced and the engineering quality was guaranteed, therefore better economic benefits were obtained. The paper introduces briefly the study on the situations of temperature raising for the micro-expansive a concrete with Mgo mixed outside.
2002 Vol. 19 (4): 107-110 [Abstract] ( 2502 ) HTML (1 KB)  PDF  (136 KB)  ( 69 )
111 DESIGN OF FORMWORK FOR HIGH PIER OVER 100 m IN PLATEAU AND AN EXAMPLE OF ITS CON STRUCTION
WU Deng-yin
The high piers over 100 m of the Lizigou extra-major bridge on the Neijiang-Kunming Railway were constructed under the special environments of highland, strong wind and cold winter. Based on the analyses and comparisons with the traditional formworks used in home, the paper introduces the design of a kind of hydraulic self-controlled overturn formwork with the functions of keeping out the wind and the cold. The corresponding construction key technologies are introduced also.
2002 Vol. 19 (4): 111-116 [Abstract] ( 2505 ) HTML (1 KB)  PDF  (202 KB)  ( 112 )
117 THE SYNTHESIS OF CONSTRUCTION TECHNIQUE FOR ONCE TRACK LAY- IN G OF CON TIN UOU S WE LDED RAIL IN A N E WLY BU IL T RAIL WAY
YAN G Wei-bin, QIAN Zhen-di, ZHANG Ning-nan, XUE Hong-xi, YAO Xu
Once track laying of continuous welded rail is a complicated system engineering, which involves many technology methods. In these methods the application of single or part technology methods can not get up to the requirement of strict standard in once track laying. Only by the synthesis of construction technique, the purpose of once track laying can be obtained, and satisfied with the requirement of ride comfort in once track laying.
2002 Vol. 19 (4): 117-120 [Abstract] ( 2512 ) HTML (1 KB)  PDF  (150 KB)  ( 126 )
121 STATISTICS ANALYSIS OF ACCIDEN TS WITH IN JURIE S AND DEATH FOR A CONSTRUCTION ENTERPRISE BY USING REASONING STATISTICS METHOD
WAN G Zong-huai, XIE Yu-qing
By applying the basic method of statistics analysis, the analyses on statistics in formations of accidents with injuries and death for a construction enterprise in recent 16 yeas are put forward, and the general regular pattern of accident happened are obtained. And by using the control diagram，the process control was put forward on the safety operation works of the enterprise, while the good effects had been achieved.
2002 Vol. 19 (4): 121-123 [Abstract] ( 2533 ) HTML (1 KB)  PDF  (130 KB)  ( 151 )
124 AN EXAMPLE ON CONSEQUENCES CAUSED BY FAULTS DURING INVITING AND SUBMITTING TENDERS AND ITS ANALYSIS
LU Tao
Through an example of serious consequences caused by the faults on the works during inviting and submitting construction tenders for a metro project，these serious consequences arc analyzed from the following five aspects，such as the procedure of inviting and submitting the tenders，management of contracts，supervision works，preliminary examination of projects and the settlement of the projects. The importance of project management concerned with inviting and submitting of the tenders are expounded also in this paper.
2002 Vol. 19 (4): 124-127 [Abstract] ( 2501 ) HTML (1 KB)  PDF  (126 KB)  ( 163 )
128 DISPOSAL METHOD ABOUT UNIFICATION OF TWO PLAN FIGURES
LI Ming-hua
Horizontal line diagram and network diagram are centralized to show the working organization. They are main methods about degree of progress control too，but there are many problem in application. These two methods often don't unification even contradiction with each other. In this paper, some methods are given to re- solve these problem by author.
2002 Vol. 19 (4): 128-130 [Abstract] ( 2463 ) HTML (1 KB)  PDF  (123 KB)  ( 290 )
131 LABOURER MANAGEMENT OF RAILWAY CONSTRUt:'1'lON ENTERPRISES
ZHANG Wen-jin，DING Xiao-yi
The labour management is a kind of complex basic work of the construction management. The pa- per analyzes the present situation of the labourer management in railway construction enterprises and the existing problems. It proposes that the following factors should be considered comprehensively, such as the labourer enterprises qualifications, technical level, management situation, construction outstanding achievements, financial guarantee ability，etc?Combined with the requirements of the enterprise itself, the suggestions are proposed als o concerned with selecting and managing the construction troops in order to establish a qualified labourer enterprise.
2002 Vol. 19 (4): 131-135 [Abstract] ( 2511 ) HTML (1 KB)  PDF  (150 KB)  ( 208 )
136 PATENTS AND THEIR EFFCTS ON TECHINOLOGY INNOVATION
BAI Zhao
The 21st century is a knowledge economy era with the high-new technologies as its core. The country and enterprises must possess necessary ability of technology innovation. Patent system is the product of market economy. The superiority of market competition may be obtained only due to the achievement of patent protection of the products. The paper introduces briefly the patent system in our country，expounds the effects of the patents on the technology innovations, and proposes several suggestions concerned with the particular situation of the General Corporation.
2002 Vol. 19 (4): 136-138 [Abstract] ( 2473 ) HTML (1 KB)  PDF  (96 KB)  ( 77 )
139 STUDY ON PROBLEMS CONCERNED WITH RAILWAY TRANSPORTATION EN TERPRISE S GOIN G TO MARKET
ZHANG Li-bo
Under the developing conditions of the market economy，how to go into the market for railway transportation enterprises in order to strengthen and enlarge their shares in the transport market has become an urgent problem which should be solved immediately. On the base of strengthening the technical reform of rail- way equipments in order to raise the overall benefits of the railway，we should work hardly for increasing the variety of passenger and freight transport, raising the service quality of passenger and freight traffic，and enhancing the marketing works of the railway transportation enterprises.
2002 Vol. 19 (4): 139-140 [Abstract] ( 2527 ) HTML (1 KB)  PDF  (98 KB)  ( 185 )
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