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1995 Vol. 12, No. 4
Published: 1995-04-15
1
CONCEPTIONS OF A 2005 ?2050 PLAN FOR CONSTRUCTING RAILWAY NETWORK OF NORTHWEST CHINA
Zhao Rongxi
The paper expounds the general situation of railways in the northwest regions of China. Along with the reform and open to foreign countries and the rapid development of nation?al economy? the necessities of speeding up the reformation of existing railway lines and the con?struction of new railway networks in the Northwest China are explained，and the planning con?ceptions for constructing railway networks in these northwest regions are proposed.
1995 Vol. 12 (4): 1-7 [
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2474
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8
DISCUSSIONS ON RELATIONS BETWEEN RAILWAY AND OTHER TRAFFIC WAYS IN CONSTRUCTION OF ROUTE NETWORKS
Wang Jingcheng
The paper expounds the relations between the five ways of traffic, i. e. the railway with highway, waterway^ airtransport and pipeline transport. In ordei to develop national com?munications and transportations，the necessities of speeding up the railway construction as essen?tial affair and developing actively the other ways of traffic are explained. The national and region?al railway trunk lines，main national highways，arterial waterways and main pipelines，which have significant influences on the national economy and play the important role in the networks of the coordinated transportations，should be constructed as the principal projects. The relations be?tween railways and highways are described emphatically. By taking the Gansu and Fujian Provinces as examples, it is recognized that the railways and the highways must be cooperated with each other for coordinating the developments. And thus, a communication and transporta?tion system, in which the railways and the highways are the frameworks and other traffic ways are cooperated, will be established. This system has rational distributions and advanced tech?niques and extends in all directions.
1995 Vol. 12 (4): 8-13 [
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2489
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14
MUST ATTACH IMPORTANCE TO AND SPEED UP CONSTRUCT TION OF RAILWAY ALONG YANGTZE RIVER
Rong Chaohe
Economic situation in basin of the Yangtze River and transport capacity of railway needed by opening up industries are analysed，the relation between building railway along river and giving play to the advantage of water-transport on Yangytze River are discussed, and practi?cal ideas which speed up construction of railway system along river are pointed out in this paper.
1995 Vol. 12 (4): 14-18 [
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2508
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19
ENLIGHTENMENT FROM RESEARCH ON XI’AN - NANJING RAILWAY
Lin Minfu
Based on the realization of participating in the research works, the author proposes that the traffic volume should be determined according to the national economic and social devel?opment strategy and combined with the role of the railway networks, and the schemes of the route and its implement procedure should be determined according to the multi—respect contrasts and selections. These suggestions are rather valuable for reference. Owing to the important role of the Xi^an —Nanjing Railway on the railway networks, the author suggests that the Xi’an — Nanjing Railway should be accomplished as soon as possible.
1995 Vol. 12 (4): 19-24 [
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2498
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25
RAILWAYS IN NANJING DISTRICT AND SELECTION OF POSITION CROSSING OVER YANGTZE RIVER
Xian Shiduo
The railway requirements in the Nanjing District, the present statu and its relation with the railway program are analyzed in this paper. A new scheme of building Jing-Hu high?speed railway crossing over Yangtze River at Nanjing is proposed. Various problems which may be occurred under this scheme and the measures for solving these problems are analyzed and dis?cussed. Finally, several forms of crossing over the Yangtze River are contrasted and selected.
1995 Vol. 12 (4): 25-28 [
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2497
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29
IMPROVEMENT OF SURVEYING PROCEDURE FOR CHANGING RETARDING SITUATION OF GEOLOGIC WORKS
Zhou Baoxi
The paper points out the passive retarding situation of the railway geologic works and its creating reasons. Being aimed at passive situation of the geologic works, in order to change this passive retarding situation, several measures are suggested in this paper, such as inv- proving the surveying procedure, proceeding necessary reformation to the contents and depth of the geologic works in the preliminary surveying, and strengthening the geologic synthetical prospecting works* etc.
1995 Vol. 12 (4): 29-34 [
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2484
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35
AERIAL SURVEY AND ROUTE SELECTION ON NANNING—KUN?MING RAILWAY
Ren Denong
The paper expounds a general description of applying the aerial survey remote sens?ing technique on the Nanning — Kunming Railway，the obtained successes and experiences, and the suggestions for spreading this technique furthermore in the future, A great achievement and the benefits have been obtained, concerned with the route selection on the Nanning —Kunming Railway Line by applying the aerial survey remote sensing technique.
1995 Vol. 12 (4): 35-40 [
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2524
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41
ANALYSES ON MECHANISM AND METHOD OF DISPOSAL FOR COLLAPSE-LANDSLIP OF SOFT SOIL EMBANKMENT
Min Weiging
Mechanism why the collapse — landslip of soft soil embankment happened at Yongfengying station of the new railway between Nanning and Kunming and the engineering measure to reinforce -the soft soil embankment are discussed，the construction method and the monitor at the scene to this work point in handling course are discussed too，and lastly 9 the author’s realizations are described in this paper.
1995 Vol. 12 (4): 41-49 [
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2424
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50
EFFECTS OF BALLAST THICKNESS ON RAIL TRACK STRUC TURE
Lei Xiaoyan Sheng Xiaozhen
A dynamic finite element model for system of wheel—rail—ballast is proposed in the paper. In this computational model, the rails are discretized into plane beam elements in which the ballast is considered as additional degree of freedom. This treatment makes it pos?sible for us to assemble the stiffness，damp and mass of the ballast on the element level， which greatly reduces the band width of the total stiffness matrix. As an application exam?ple t the dynamic responses of rail track structure with different ballast thickness are analyzed and some preliminary conclusions are obtained.
1995 Vol. 12 (4): 50-56 [
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2514
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57
THE LONGEST SEAMLESS TRACK ON BRIDGE IN CHINA
Zhao Yucheng
The applications of seamless track on the railway bridges are usually concerned with the strength and stability of the track on the bridge,safety and comfort of the train op?eration and the structure of the bridge’s main body. At present time，the seamless track on the Jiujiang Changjiang Great Bridge is the longest in China. The specialities of this seamless track，the method of track laying and the material and properties of the rail fastenings are in?troduced in detail in this paper. In future,for the application and development of the seamless track on the railway bridges in China,these introductions are valuable for reference.
1995 Vol. 12 (4): 57-61 [
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2485
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62
BUILDING PLAN OF V-TYPE SUPPORTINGS FOR NANPAN- JIANG UNUSUAL LONG BRIDGE
Wang Tingyun
The main span of the Nanpanjiang Bridge adopts partial prestressed concrete con?tinuous beam with V 一 type supportings. This is a first example to railway bridge of our country. This paper discusses the building plan on V —type supportings of this bridge, as well as emphatically points out the methods which ensure stability of structures hanged at the top of the high piers and solves the problems on the support during working in high—al?titude and the scaffold for operation during construction.
1995 Vol. 12 (4): 62-69 [
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2458
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70
RESEARCH ON FEASIBILITY OF DESIGNNING CABLE — STAYED BRIDGE WITH PC CONTINUOUS RIGID -STRUCTURE IN QUASI-HIGH-SPEED RAILWAY
Pei Ruojuan
Based on the space analysis of the China’s first cable—stayed bridge with double bridge tower built in the quasi—high—speed railway,this paper proposes a scheme of the ca?ble—stayed bridge with continuous rigid structure which consists of the fix—jointed bridge tower and girder,the fix—jointed bank pier and girder and the channeled box girders.
1995 Vol. 12 (4): 70-79 [
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2461
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140
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80
CALCULATION OF LATERAL ERROR OF PIERCING IN TUNNEL GPS NETWORK
Yao Lianbi
Tunnel engineering is a necessary part in the railway and highway constructions. The tunnel construction network established by using GPS has the advantages of high speed， high precision and low expenses. The calculation about the influence of tunnel GPS network to the lateral error of piercing is very important. F3asing on the conducted formula of tunnel GPS lateral mean square error of piercing，the authors present one set of data processing method about GPS used in tunnel engineering,and give a calculating example in the practical engineering .
1995 Vol. 12 (4): 80-85 [
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2503
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86
APPLICATION OF AIRTIGHT CONCRETE IN CONSTRUCTION OF TUNNELS
Lang Baohua
As the railway track crossing through the gassy coal —bed in the mountain regions ， the role of applying airtight concrete to grout the tunnel lining in the construction of the tunnels has been described in this paper. The application mechanism of various additional agents mixed into the airtight concrete and its mixture ratio are described also in the paper.
1995 Vol. 12 (4): 86-89 [
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2444
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90
TKNTATIVE IDEAS ON DEVELOPMENTS OF FOUR LARGE RAILWAY TERMINALS IN SOUTHWEST
Zhang Runyan
This paper discusses the situation of four large railway terminals in the southwest China and analyzes the existing problems in these terminals. The authors suggest the tentative plan for developing these terminals, so that the terminals may be suitable the real situation of the southwest area.
1995 Vol. 12 (4): 90-96 [
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2475
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97
CONSIDERATIONS ON CONSTRUCTION PLANS OF RAILWAY MARSHALLING STATIONS IN NORTHWEST CHINA
Xu Yingjue
The paper analyzes the existing essential problems and the specialities of wagon flow on railway marshalling stations in the northwest regions of China. Finally，the schemes on the division of labours and the construction plans of the railway marshalling stations in these northwest reginos are proposed.
1995 Vol. 12 (4): 97-103 [
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2487
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104
RELATION BETWEEN ENVIRONMENTAL PROTECTION AND DESIGN OF LARGE AND SPECIAL LARGE PASSENGER STA-TIONS
Zheng Qipu
Design questions of building type and place type,public square,platform under over head watting room,excretig smoke~ventilation system, large and special large passenger stations are researched view in this paper.
1995 Vol. 12 (4): 104-109 [
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2530
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110
CONSTRUCTION TECHNIQUE OF COMPOSITE FIBER OPTIC CABLE
Du Weibing
The paper summarizes the construction technique of the composite fiber optic cable. The electrical property composition technique and the connecting procedure of thd fiber optic ca?ble are described and discussed emphatically. The problems concerned with the structure, the lay?out and the test of the fiber optic cable are also described briefly in this paper.
1995 Vol. 12 (4): 110-116 [
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2476
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117
SUGGESTION ON POPULARIZATION OF BRIDGE - BUILDING MACHINE WITH MOVABLE SUPPORTS FOR MEDIUM-SPAN GIRDERS
Song Dewen
The paper pc i nusout that the bridge —building machine with mavable supports is a large-scale building machinery for constructing prestressed concrete girders which are built"span by span at the ordinary positions. It is specially suitable for building medium— span prestressed concrete girders in our country. The author recognizes that the application of the simple—section assembly erection method is the best way for the medium—span girders. Finally?the author intro-duces the specifications and the operating method of the ZQJ —32/56 movable—supports bridge —building machine manufactured by our country,and gives an evaluation on its social and eco?nomic benefits and its popularization forecast.
1995 Vol. 12 (4): 117-122 [
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2449
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123
DISCUSSION ON MECHANISM OF WEAR AND EXPLORATION ON DEVELOPMENT OF ANTIFRICTION AGENT
Huang Song
Based on the beneficial discussions on the mechanism of mechanical wear, several new concepts are proposed in this paper. The superiorities of the solidified lubrication and the means for testing the JZ—B engine oil synergist are also introduced in the paper.
1995 Vol. 12 (4): 123-128 [
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2465
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129
BDS200-TYPE INSTALLATION FOR DISPERSING BALLAST
Gua Jingyun
This paper discusses the form，function and operation process of the BDS200-type in?stallation for dispersing ballast，and gives a mechanical building method to be selected and as ref?erence for construction enterprises.
1995 Vol. 12 (4): 129-130 [
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2604
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131
REFORMATION AND DEVELOPMENT OF CONSTRUCTION EN?TERPRISES IN RAILWAY ADMINISTRATIONS
Wu Jian
The problems concerned with the reformation of the construction enterprises in the railway administrations are discussed in this paper. Under the influences of the un—independence and the daul nature of the multi-stage enterprises which were accomplished by the planning sys?tem of organizAtion, the contradictions and the difficulties faced by the construction enterprises are anslyzed. It is pointed out that the reformation of the construction enterprises in the railway administrations should be converted from the mode of multi — stage enterprise. The initiative management should proceed according to the regularities of the construction enterprises of them-selves. The interior of the enterprise should put forward the project management and proceed the regulations of organization structure and product structure firmly and resolutely. Thus, the con-versions of internal manage system will be promoted, enabled the construction enterprises to become a great support to the diversified economy of the railway administrations.
1995 Vol. 12 (4): 131-135 [
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2478
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136
STRENGTHEN TEST — MEASURE WORKS AND CONTROL BUILDING QUALITY RIGOROUSLY
Tang Guoping
This paper describes the engineering supervise — manage situation in the Fuyang — Huaiping Section the of Jing—Jiu Railway Line and suggests a set of method on controlling rigor?ously the building quality, which can be used for reference to the construction business.
1995 Vol. 12 (4): 136-139 [
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2474
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