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1999 Vol. 16, No. 3
Published: 1999-03-15
1
REVIEW AND PROSPECT ON CONSTRUCTION OF CHUAN-HAN RAILWAY AND XIANG-YU RAILWAY
LI Ben-shen
The preparation to construct the Chuan-Han Railway and the course of construction of the Xiang-Yu Railway from the year 1965 are reviewed in this paper. After the construction of Xiang-Yu Railway had been accomplished，the existing problems are expounded and the reconstruction works had been put forward. The prospect on implementation of construction. of the Xiangyu-Chuanhan Railway in the future has been also proposed.
1999 Vol. 16 (3): 1-4 [
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2477
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5
SUBURBAN RAILWAY-A NECESSARY PART TO THE BEIJING MASS TRANSIT
ZHENG Yi
This article analyses the functions and the advantages of the suburban railway, and introduces the situations of two modern big cities : Paris and Beijing. In recent years,the structure of Beijing City has been changed greatly, expressed mainly on the enlargement of the scope of urban district .decreasing gradually of population in the city proper.increasing rapidly of population in the suburbs，and violent increasement of passenger traffic capacity between the city proper and the suburbs. And it is pointed out that the construction of the suburban railway in Beijing will alleviate the situation of the transportation congestion and promote the economic construction in Beijing.
1999 Vol. 16 (3): 5-7 [
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2447
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8
ELEMENTARY OPINION ON CONSTRUCTION OF HU-YU EXTRA- LONG RAILWAY PASSAGE ALONG YANGTZE RIVER
LUI Ji-lu
The Hu-Yu Railway will be a railway trunk line along the Yangtze River,beginning from the Shanghai City ,passing through Nanjing, Wuhan, and ended at Chongqing &. Chengdu regions. This railway will stretch across Shanghai City,Jiangsu Province,Anhui Province,Jiangxi Province,Sichuan Province and Chongqing City,with a total length of about 2 116 km. By analyzing the present situation of constructing a series of railway sections along the Yangtze River from Shanghai to Chongqing,the paper expounds the important political meanings and economic benefits for connectting these railways as an extra-long railway passage along the Yangtze River.
1999 Vol. 16 (3): 8-11 [
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2441
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12
EXPLORATION ON ACCURACY OF CLOSURE DURING LOCING
XU Bao-cheng
The construction of the closure for railway often occurred during reconstruction of existing railway line and construction of double line railways. In order to be unaffected both in the construction of closure and the operation of traffic，the paper proposes the factors which influence the accuracy of the closure and the methods to eliminate those unfavourable factors.
1999 Vol. 16 (3): 12-15 [
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2497
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16
TENTATIVE IDEAS ON MAINTENANCE SYSTEM OF HIGH SPEED ELECTRIC MOTOR TRAIN UNIT IN CHINA
ZHANG Yan
The paper introduces the maintenance system of ICE high speed trains in Germany, TGV high speed trains in France and the high speed tains in japan,as well as the maintenance situation of traditional electric locomotives in China. Tentative ideas are proposed concerned with the maintenance system of high speed electric motor train unit in China in future,including mainly the classifications of repair and ihc indexes of repair period standing time, under repair .etc.
1999 Vol. 16 (3): 16-19 [
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2550
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20
PRACTICES ON ELEVATED LONG-SPAN BRIDGE AND JOINTLESS WELDED RAIL FOR URBAN RAIL COMMUNICATON
ZHAO YU-Cheng
The urban rail communication is an important measure for releasing thoroughly the intensive traffic in major cities. Taking the construction of Mingzhu rail line in Shanghai example,the paper introduces the specialities of constructing elevated bridges for urban communication and its special measures., The practices and experiences of the track laying of the jointless welded rail on the elevated bridges for urban rail communication and on the Jiujiang Changjiang major bridge are also introduced in this paper.
1999 Vol. 16 (3): 20-25 [
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2490
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26
CHOICE OF CALCULATION METHOD OF LIMIT BEARING CAPACITY FOR RAILWAY BRIDGE PIER AND ABUTMENT
Ll Fang-zhi,JI Wen-yu,XU Ke-bin
Two kinds of calculation methods of the limit bearing capacity of the eoncrete members and the stone-filled members were calculated and compared by the current standard design in which different shape of cross section members were considered. The results show that the method number one whose stress of the compressed region of the cross section is assumed to be distributed in a rectangular shape has a clear meaning,is in accord with the habit of design and close to the current bridge code. It reflects the rules of the changing of the code and could be recommended.
1999 Vol. 16 (3): 26-29 [
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2552
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30
STUDY ON TECHNOLOGICAL TREATMENT METHODS OF HIGH SPEED RAILWAY BRIDGE—SUBGRADE TRANSITION
LUO Qiang, CAI Ying
With the view of systems engineering, on the basis of the dynamic analyses of vehicle and track system interaction, and by means of some technological materials,a few tentative suggestions are mentioned in the paper about the main design parameters and technological treatment methods of high speed railway bridge-subgrade transition.
1999 Vol. 16 (3): 30-33 [
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2444
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34
CONSTRUCTION TECHNIQUE OF STEEL STRUCTURE FOR LONGSPAN STEEL PIPE CONCRETE ARCH RAILWAY BRIDGE
HUANG Wu
It is very difficult to construct large span steel pipe concrete arch railway bridge due to its complicated structure, no mature similar experience to follow and no relative regulation to be guided by. But it is possible to well construct these types of bridges through finding out their characteristics and key procedures, and adopting completed plant and equipment,proper construction technology and sequences and testing methods as follows: (1) Fully play the advantages of manufacture technical force and advanced equipment to ensure the accuracy of steel members and welding quality. Arrange the complicated procedures to be done in factory,so as to simplify assembling and welding works at site, thus improve the arched accuracy and welding quality. (2) Control the site welding deformation. It is mainly accomplished by adopting the proper technology and construction sequences together with firm supports and necessary site facilities.(3) Welding quality is mainly ensured through adopting proper welding technology and qualified welder with post certificate.
1999 Vol. 16 (3): 34-38 [
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39
CONSTRUCTION OF STIFFENING PRESTRESSED CONCRETE CONTINUOUS BEAM WITH TIE BAR ARCH OF NET WEB MEMBERS
LU Jian-zhong
A grade separation bridge on Fengtai Road, which was constructed in Beijing and had been put into operation in September 1995，is the first bridge in China composed of stiffening prestressed concrete continuous beams with tie bar arch of net web members. The paper introduces the general situation of this bridge, and describes its engineering procedures and construction essentials in detail which are valuable for reference.
1999 Vol. 16 (3): 39-42 [
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4767
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43
ELEMENTARY TALKING ABOUT JOINTLESS TRACK ON BRIDGE
GUO Sheng-zhen
The jointless track on bridge is different from the jointless track laying on the traditional subgrade. The paper analyzes the specialities of the jointless track on bridge. According to the different span of the bridge，they are classified as two types,i.e the jointless track on the small-span and middle-span bridges and the jointless track on the long-span bridge. The paper expounds the design features of the jointless track on bridge and its existing problems. The problems which should be explored further are proposed also.
1999 Vol. 16 (3): 43-44 [
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45
TALK ABOUT TUNNEL SLIDE FROM DIFFERENT ASPECTS
WANG Shou-ren
The understanding on tunnel slide and its treatment methods have different contents during different times. Nowadays, as the geological forecast, blasting technique, supporting measures and mechanization level have been fully developed, it may be considered that the tunnel slide over 90﹪ may be avoided and it is possible to avoid entirely. The paper expounds the different types of tunnel slide and analyzes the different reasons which influence the slide of tunnel. The countermeasures for treating the tunnel slide and the new technologies which should be put forward for preventing the tunnel slide are also proposed.
1999 Vol. 16 (3): 45-51 [
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52
STUDY ON PREDICTION OF SURROUNDING ROCK PERMEABILITY FOR DEEP-LYING TUNNEL——CURRENT SITUATION AND PROSPECTXU
Ze-min,YANC Li-zhong
Prediction of surrounding rock permeability in tunnel is the base of estimating the water gushing yield for deep-lying tunnel. The former relevant researches may be divided into the followings;the relations between aperture and depth and between aperture and normal stress, the relationships between hydraulic conductivity and depth and between hydraulic conductivity and normal stress. So far,these researches results have not satisfied the need of practical projects completely yet.
1999 Vol. 16 (3): 52-55 [
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2445
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56
TECHNOLOGY OF STRUCTURAL WATERPROOFING-DRAINAGE AND TREATMENT OF SEEPAGE WATER FOR TUNNEL
ZHANG Min-qing
This paper probes into the design and construction of structural waterproofing-drainage and tht treatment of seepage water through the research on the seepage water.
1999 Vol. 16 (3): 56-64 [
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4743
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65
APPLICATION OF WET SHOTCRETE FOR TUNNEL
YANG Bao-chong
The paper introduces the present situation of the wet shotcrete method by applying the wet shotcrete machine manufactured in China during construction of the tunnel. A series of expriences are summarized,concerned with the design of mixing ratio of die concrete,the mixing of the mixtures, the shotcrcte technique,etc. They are valuable for reference.
1999 Vol. 16 (3): 65-67 [
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2507
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68
SURROUNDING ROCK BY OF I LINE OF TUNNEL IN CONSOLIDATION TECHNIQUE GROUTING DURING CONSTRUCTION CREEP STRATUM
ZAN Yue-wen
In accordance with the deformation characteristic of surrounding rock during the construction of I line of tunnel in creep stratum, the mechanics model of surrounding rock during grouting was proposed and the numerical simulation analysis was put forward. The grouting thickness for surrounding rock and the mechanics parameters were determined，and the control of grouting for surrounding rock of tunnel in operation was thoroughly studied. A lot of practical measuring data which are proposed in this paper may be used as reference to ensure the traffic safety during construction by grouting. The comprehensive evaluation of the effects of grouting are also proposed in this paper.
1999 Vol. 16 (3): 68-72 [
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2490
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73
BLOCK APPERING POSSIBILITY AND STABILITY ANALYSIS ON CONSIDERING OF THE DIMENSION OF BLOCK
WANG Ying-xue,WANG Jian-yu
In this paper,on researching of joint face distribution distances,the appearing possibility of different dimensions of block was analyzed. Many random factors were taken into account when calculating the block reliability,such as angles of joint face,binding force,friction coefficient,the rock density,etc. The analysis process has been compiled into program and can be used for analyzing the appearing and failure probability of different dimensions of block on the excavating space of stone engineering construction. The analysis result can provide scientific basis for anchoring and sparging concrete design.
1999 Vol. 16 (3): 73-77 [
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78
APPLICATION OF SARMA METHOD ON STABILITY ANALYSIS OF LANDSLIDE AT LAONIUPO ON XI7AN-NANJING RAILWAY LINE
WEI Guo-an
For evaluation and stability analysis of landslide,the Fellenius Method, Bishop Method and Janbu Method were usually used ,but the Sarma Method was rarely adopted. The Sarma Method is a newly developed analysis method based on limiting equilibrium. The paper introduces the basic principles of the Sarma Method, including its mechanics model, geometric model and calculating formulas,as well as its application on landslide at Laoniupo of Xi′an-Nanjing Railway.
1999 Vol. 16 (3): 78-81 [
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82
STUDY ON CUTTING SLOPE SURFACE EROSION OF GRANITE ELUVIUM IN THE SOUTH OF CHINA
LUO Bin,HU Hou-tian,Lu Xiao-ping
Based on investigations and researches, firstly, this paper sums up the characteristics, of cutting slope surface erosion of granite eluvium in the south of China,including three aspects: its types,shapes,generation and development. Then，it analyses the influence features of slope surface erosion in brief. Finally,this paper researches the critical gradient of slope erosion,and obtains a result that the gradient thresholds are about 43 degree.
1999 Vol. 16 (3): 82-85 [
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2498
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86
EXPLORATION ON COMPOSITE CAPACITY OF XI’AN TERMINAL
LI Ya-nan
Based on the present situation of Xi′an Terminal and the analysis on its existing main problems, the key factor which influence the composite capacity of Xi′an Terminal is illustrated as follows;how to solve perfectly the problem concerned with passenger cars? As the Xi′an-Ankang Railway and the Xi′an -Nanjing Railway will be connected into Xi′an Terminal, two conceptions for raising the composite capacity of Xi’an Terminal are proposed and analyzed. And then,as the key measure for enhancing the composite capacity of Xi′an Terminal.a conclusion on constructing a new Xi'an South Station and reconstructing the Xinfeng Marshalling Station has been obtained.
1999 Vol. 16 (3): 86-90 [
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2455
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91
DESIGN FEATURES OF GENERAL LAYOUT FOR SUBWAY CAR DEPOT AND ITS OPTIMIZATION
ZHANG Xiong
Combined with the design of general layout for Guangzhou subway car depots,the paper introduces briefly the basic modes of general layout of subway car depot and their specialities. The paper puts forward also the explorations concerned with the optimization design of general layout of subway car depot in following aspects,such as the combination of requirements in the near future with the long-term forecast, combination of construction with the upper-built facilities, as well as the reasonable distribution of the car washing tracks，etc.
1999 Vol. 16 (3): 91-94 [
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2502
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95
TALK ABOUT DESIGN SCHEME TO LEAD JING HU HIGHSPEED RAILWAY INTO TIANJIN TERMINAL COMBINED WITH RAILWAY PLANNING IN JING-JIN-QIN REGION
WU Cai-lan
Based on the analysis on present situation of existing traffic carrying capacity in Jing-Jin- Qin region and the increasement of passenger and freight traffic volume in design years and combined with present situation of Tianjin railway terminal and its traffic volume in design years , in the viewpoint for exploration，the more feasible design schemes to lead the Jing-Hu highspeed railway into the Tianjin Terminal arc proposed in this paper.
1999 Vol. 16 (3): 95-98 [
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2533
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99
INFLUENCE OF COMPUTER’S DEFECT CONCERNED WITH THE YEAR 2000 AND ITS COUNTERMEASURES
ZHANG Han
The paper illustrates the cannotation and the origin of the computer's defect concerned with the year 2000,and expounds its influence and harm on computer system. The present situation for solving the problem concerned with the year 2000 in home and abroad are introduced, and the countermeasures which should be adopted arc also proposed in this paper.
1999 Vol. 16 (3): 99-102 [
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2467
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103
BUILDING OF TMN FOR THE 11TH ENGINEERING CONSTRUCTION GROUP
HUA Ling
This paper aims at the presentation of TMN building scheme for the 11th Engineering Const ruction Group of MOR. Futhermore,it gives us a brief account of the TMN building situation.
1999 Vol. 16 (3): 103-105 [
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106
STUDY ON THE LAW OF PROBABILITY STATISTICS FOR OVER?EXCAVATING AND UNDER-EXCAVATING DURING CONSTRUCTION OF TUNNEL BY DRILLING AND BLASTING METHOD
ZHAO Hui-bing
Based on the practical measurements during tunnel construct ion, the specimen parameters of over-excavating and under-excavating for E，IV﹠V scries of surrounding rocks arc obtained. The numerical characteristics and the probability distributions of over-excavating and under-excavating for different series of surrounding rocks are put forward through numerical and physical statistics and analyses.At the same time,the law of distribution of over-excavating and under-excavating at different portion on tunnel section for different series of surrounding rocks are also obtained,which may be used for controlling the quality of construction and taken as reference for researching the reliability of the tunnel Structure.
1999 Vol. 16 (3): 106-110 [
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111
TUNNEL BLASTING DESIGN EXPERT SYSTEM
SUN JI-tang
Nowadays, the drilling and blasting method is a basic method for excavating tunnels in China, Therefore,its standardization of design and the systematic technical renewal are very important for enhancing the quality and speed of the excavation of tunnels and ensuring the safety operation. The paper introduces in detail the design feature of the tunnel blasting design expert system and its operation situation. The aspect of intelligent design concerned with the smooth blasting in this expert system has been proposed as valuable reference for the follow-up engineering.
1999 Vol. 16 (3): 111-114 [
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2505
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115
POWER SUPPLY AND DISTRIBUTION SCHEME DURING CONSTRUCTION AT ENTRANCE OF MIHUALING TUNNEL
CHANG Mian-sheng，CHEN Chang-zheng
The paper proposes a complete set of scheme for power supply and distribution at the entrance of the Mihualing Tunnel on Nan-Kun Railway during construction. It provides an attempt to be a kind of complete set technical design for excavating different kinds of tunnels in China,and may be summarized as reference.
1999 Vol. 16 (3): 115-118 [
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119
THINKING ABOUT INSTALLATION FOR TRACTION POWER RAILWAY SPECIAL IINES
WEI Lan-fang,LI Wan-liang
There are a lot of local railway special lines connected with the electrified railways in the region of the Beijing Railway Administration. In order to guarantee the traction power supply and the safety operation,the paper introduces several schemes of the installation of the connecting equipments. Based on practical examples,several schemes of connecting equipments,especially several kinds of the open-close substations, are expounded. The advantages and disadvantages and their investments are introduced. They are valuable for reference and for further discussion.
1999 Vol. 16 (3): 119-121 [
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122
PRELIMINARY ANALYSIS ON DESIGN OF PILE BOX FOUNDATION FOR A HIGH MULTI STOREY BUILDING
FAN Wei-li
Combined with practical engineering example of a synthetic office building for the Shanghai Minitary Police Command School, the pile box foundation was used by adding piles under the box-typed foundation to fulfill the requirements for enhancing the bearing capacity and preventing the deformation. This pile-box foundation is a box-typed .structure which consists of the bottom plate .top plate,outside wall and inside longitudinal and lateral walls ,and by which the upper loadings arc distributed to the piles. The paper proposes the analysis on the pile-box structure, as well as its calculating methods.
1999 Vol. 16 (3): 122-125 [
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126
DESIGN ON BUILDING OF SLAB COLUMN STRUCTURE WITHOUT COLUMN-CAP
ZHONG Yu-lin
The slab-column structure without column-cap which is a new-type of building structure has not been used usually in engineering practice,especially rarely applied in earthquake regions. Based on the loading analyses from two aspects: the system of slab-column structure and the connection between slah and column, the paper expounds in detail the structural calculation of this kind of structure, the essentails of Its reinfocing design and the principle of design for strengthening the connecting joins. The applications of this kind of structure in earthquake region are discussed emphatically, and it has been applied in engineering practice will good technical and economic benefits.
1999 Vol. 16 (3): 126-129 [
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130
PRELIMINARY EXPLORATION ON ESTABLISHING A NEW RAILWAY CONSTRUCTION MANAGEMENT SYSTEM UNDER THE SOCIALISTIC MARKET ECONOMY CONDITIONS
WEI Wei
The reform of construction enterprises in Chian had begined at the year 1984 through the establishment of the calling, bidding and contracting systems for the engineering projects and developed gradually. Based on the reform practices of railway construction enterprises in recent years, significant effects have been obtained mainly through controlling the construrction investments, developing the benefits of the investment and raising the level of the railway construction ^but there is still a big gap with the socialistic market economy. The paper analyzes the existing problems in recent times,and proposes the principles for establishing a new railway construction management system and the corresponding reform measures.
1999 Vol. 16 (3): 130-133 [
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134
TO CREATE AN ENVIRONMENT FOR RAISING THE ENGINEERING QUALITY OF RAILWAY CONSTRUCTION
HAN Tong-yin,ZHANG Xian-feng,CHEN Feng-ping
It is a key problem to create an environment which will be useful for raising the engineering quality of railway construction. From the viewpoint of standardization of the market of railway construction and its competative system,the paper attempts to expound preliminaryly several strategies for raising the engineering quality of railway construction.
1999 Vol. 16 (3): 134-136 [
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