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1997 Vol. 14, No. 1
Published: 1997-01-15
21
DISCUSSIONS ON CONSTRUCTION OF RAILWAYS TOWARDS COASTAL PORTS IN CHINA
Zheng Qipu
The paper discusses the sta tus and the role o f the rai lway co nst ructio n in the const ructio n of a modernized coastal port , and describes the recent dev elopment and it s mode in railw ay co nst ructio n fo r the co astal po rt s in China. Sev eral o pinions and sugg estions are also proposed for co nst ructing rai lway s towa rds the coastal po rt s a t present time.
1997 Vol. 14 (1): 21-24 [
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25
FU-SHA RAILWAY IS AMAIN ARTERY OF COMMUNICATIONS FOR FLOURISHING WEST COAST OF TAIWAN STRAITS
Chen Chengqin
The paper ex po unds the impor tant mea ning o f const ructing the Fuzhou-Shamen Rai lway. By analy zing it s po li tical and eco nomic ef fects and i ts ro le in the rai lway netw o rk, the inv estment estimations and the benefi ts fo r dif ferent schemes of co nst ructing this railway a re pointed out . To const ruct thi s rai lway is now at the right moment.
1997 Vol. 14 (1): 25-28 [
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2424
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29
PROPOSAL FOR SOLUTIONS TO THE SITES OF HIGHSPEED RAILWAY BRIDGES IN JINAN CITY AND NANJING CITY
Zhu Xuchu
Based o n the a nalysi s o f present situa tions a nd long-term planning of railw ay netw o rks in Jinan Ci ty and Na njing City a nd the inf luence o f the int roduction o f Bei jing-Shanghai Hig hspeed Railway ( fo r passeng er t raf fic) o n the tw o netw orks, detailed pro posal to the si tes of bridg es acro ss Ya ng t ze Riv er and Yellow Riv er ( fo r passenger t raffic) is provided. And acco rding to practical ci rcumstances a t si te, proposal i s o ffered to desig n bridg es ov er Yangt ze Riv er a nd Yellow Riv er in co nformi ty wi th technical standards fo r hig hspeed rai lw ay.
1997 Vol. 14 (1): 29-31 [
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2440
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32
EXPERIENCES IN CONSTRUCTION OF RAILWAY TERMINALS IN CHINA AND SOME PROBLEMS WAITING TO BE SOLVED
Wang Cexun
The paper comprehensiv ely point s out the ex periences in the const ruction o f rai lw ay terminals and some exi sting problems w ai ting to be solved. Acco rding to the actual different condi tio ns o f the railw ay terminals, the paper discusses a nd describes the di fferent measures and project s adopted in the const ruction of the statio ns , classi fica tion ya rds, boundary lines and other faci li ties in the railway terminal s . All the accumulated design experiences v eri fied by actual operation wil l be v ery useful a nd beneficial to the const ruction of o ther railw ay terminals . The paper also expounds the impor tance o f the exi sting problems to be solv ed.
1997 Vol. 14 (1): 32-39 [
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2471
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40
RAILWAY NETWORK IN SOUTH OF ASIA AND RAILWAYS IN CHINA
Jiang Hong
Because o f the restoration o f rai lway t raf fic between China and Viet Nam, countries in the Southeast Asia are promo ted urgently to make claims fo r realizing railw ay t ransportatio ns w ith China di rect ly. As the new Asia-Europe co ntinental rai lway bridg e has been ex tented tow ards w est , the communica tions and the co ordinatio ns betw een China and the countries in Cent ral Asia and West Asia are also promo ted. There are many count ries in the south of Asia , the communicatio n of railway transport betw een these count ries wi th China a re analy zed a nd discussed, and a re sugg ested to be considered as the essentials fo r const ructing rai lw ays at the earlier-stag e.
1997 Vol. 14 (1): 40-43 [
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2457
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44
METHOD FOR FINDINGOUT DISTANCES BETWEEN RAILWAY TRACKS
Miao Kun
The paper ex plains as fol lowing aspect s. By a pplying the high-lev el lang uag e prog ramming for calcula ting the plane data a nd the coo rdina tes o f the mi leag e-points, a resultant statement may be accompli shed. By appplying AutoCAD sof tw are fo r taking auto mapmaking data, a pla n of railway t racks wi th only t rack-lines may be plo tted. Finally , drawing a no rmal-line from the mi leag e-point , the intersecting point s of no rmal-line wi th t rack-lines may be fo und o ut by the mark scanning , a nd the dista nces betw een sev eral t rack-lines co rrespo nding to a certain mi leag e-point may be obtained at one time . Therfo re, it is v ery conv enient for the sectio ns w ith plenty calculating points and complx curv es.
1997 Vol. 14 (1): 44-49 [
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2419
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50
MECHANICS EFFECT OF MICRO-DYNAMIC STRUCTURE OF ROCK AND ITS APPLICATION
Wang Wenyu Lu Xiuying
Mo re perfect research has been made for the micro- dynamic st ructure of rock f rom the engineering geologic aspect. The prelimina ry co nceptio ns are pro posed for the nomina tio n of rock in engineering so that the at tentio n may be taken and fur ther research may proceed.
1997 Vol. 14 (1): 50-55 [
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2413
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56
DEVELOPMENT AND UTILIZATION OF MANAGEMENT SOFTWARE FOR DEGREE OF COMPACTION OF ROADBED
Sun Jiping
By using the Fo xpro 2. 5, a management so f tw are o f deg ree of compaction fo r high-g rade highw ays has been pro g rammed. This so f tw are has f riendly interface wi th user , conv enience fo r operation a nd high abi li ty fo r general-service. It is popula ri zed in practica l applicatio ns w ith eco nomy of time and labor, raising the eco nomic benefit and reali zing the moderni zed manag ement and the civi li zed productio n,
1997 Vol. 14 (1): 56-59 [
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2425
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60
RESEARCH ON DESIGN OF HIGHWAY′S EMBANKMENT IN THE SEA
Wu Lianhai
By a naly zing the complex hydro logic sta te , desig ned high w ater lev el and the essential of w av es for the sea w all at Tianshui tao zi in Dalian, the sui table ty pes o f it s cross-section hav e been selected. By calculatio ns , the following measures a re determinated: the divisio n of sections w ith di fferent out side lateral railing plates, etc, the dif ferent pro tection measures fo r inner and outside slo pes , and the subg rade t rea ting and st reng thening mesaures. The desig n of hig hwa y′s embankment in the sea has been deeply discussed.
1997 Vol. 14 (1): 60-65 [
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66
Sof tware for Opt imizing Design of Sof t Subgrade
Long Guoying
The paper introduces the sof tw are, in which the engineering costs are selected as the o bjectiv e functions, fo r o ptimizing the desig n o f the sof t subg rade. The usual metho ds fo r st reng thening the sof t subg rade are compo sited into sev en schemes, and the users may select o ne or sev eral schemes arbi trarily fo r compariso n. The stabili ty analy ses at fi rst and then the set tlement calculatio ns proceed. As i f either o f them co uld not fulfi ll the requirement s, the scheme wi ll be giv en up automatically. For big and lo ng wo rksi te w ith la rg e v ariation of st ra tums, the sof tw are divides the wo rksi te into several sectio ns ( no mo re than 5 sections) and the compariso ns may proceed. Then, being synthesized, the feasible schemes w ill be put out in sequence according to the amount o f engineering costs and may be adopted fo r decision by users. For rai sing the speed of calculatio n, ma ny optimum t racking techniques hav e been ado pted in the sof tw are.
1997 Vol. 14 (1): 66-71 [
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2504
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72
Prestressed Construct ion of Beam with Cable-Stayed Concrete Continuous Truss for Weiyun River Extra-Long Bridge of Jing-Jiu Railway
Zhang Linguang
Thi s paper introduces the prest ressed co nst ructio n tech nique of the beam of Weiyun Riv er ex t ra-lo ng bridg e with cable-stay ed concrete continuo us t russ. The co nst ruction methods o f prest ressad aperture of complex prest ressed structures, the determination of the tensional sequence of steel cables, the methods of prestressed fo rce co ntro l a nd the art fo r gro uting prest ressed aper tures are di scussed in detail. Calcula ting methods o n prest ressed construction are presented, and the co nst ructio n w o rks of the structures of the Weiyun Riv er majo r bridg e are described briefly in thi s paper.
1997 Vol. 14 (1): 72-83 [
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84
DESIGN OF HUANGBAIHE RIVER HIGHWAY LARGE BRIDGE IN THE YANGTZE THREE GORGES
Li Tao
The large bridge o f Huang baihe Riv er is a co ncrete fi lled steel tube arch bridg e w ith a main span of 160 meters. It i s the lo ng est spa n of this kind of bridg e const ructed by new method in China. This paper discusses briefly i ts structural characteristics and describes the desig n and computa tion of the st ructure under the si tuatio ns of construction, o peratio n, earthquake, etc. Sev eral testing result s of th e st ructural enginearing wi th concrete fi lled steel tube used in the desig n are also presented.
1997 Vol. 14 (1): 84-89 [
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2454
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90
Rapid Calculating Formula of Reasonable Time Limit for Railway Track Laying and Bridge Erecting Project
Zhu Qinglu
The pa per introduces a metho d o f calculating the time limi t for track laying and bridg e erecting engineering project , in which sev eral facto rs are qua nti zed. Thi s metho d is va luable fo r reference.
1997 Vol. 14 (1): 90-92 [
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2415
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93
Construct ion of Bridges over Yangtze River in China
Zou Lizhong Zhou Pu
This paper is edited and t ranslated according to the book w rit ten by Н.М. Колоколов, leader of certain bureau in the fo rmerly Sov iet Union 's Mini st ry of Transportatio n Engineering. Sev eral si tuatio ns o n the co nst ructio n of railw ays in Chins and the co nst ructio n of bridg es ov er Yang t ze Riv er aided by ex pert s of Sov iet Unio n at the years just fo llowing liberatio n are mainly int roduced. As co nst ructing the Wuhan Chang jiang ex t ra-long bridge, the reinfo rced concrete ho llow tube pile foundatio ns w ere adopted. The backg round article o f this scheme i s published also in thi s paper.
1997 Vol. 14 (1): 93-96 [
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97
FORECAST AND VERIFICATION OF KARST CAVE IN THE TUNNELS OFNANNING- KUNMING RAILWAY
Jiang Zhongxin Qin Xiaolin
By inv estiga tio n on the spot w ith the karst g eomo rpholog y metho d, the di st ribution, scale and shape of karst cav e in 8 tunnels o f Nanning - Kunming railw ay are fo recasted. The tunnels a re const ructing a nd pass 4 model morpho logic regions in the Yunnan-Gui zhou plateau. Now , the tunnels are constructed. Resul t of co nst ructing v erification explains tha t the fo recast s of ka rst cav e in 7 tunnels except other one tunnel are cor rect or more co rrect. The ex periences for forecasting cov ered ka rst cave are accumula ted.
1997 Vol. 14 (1): 97-106 [
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107
Several Problems in Application of NATM
Wang Shouren
Based o n the practices of tunnel engineering fo r many years and the studies on sev eral impo rtant theses, the autho r pro po ses hi s opinions for properly applying the N ATM. It is valuable and impor tant fo r the tunnel engineering w orkers.
1997 Vol. 14 (1): 107-114 [
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115
DISTRIBUTION FORECAST ACCORDING FRAG-SIZE AFTER BLASTING BY USING FRAGMENTATION MODEL OF FRACTURE
Liu Hui Feng Shuyu
Based on the relativ e principles o f f ragmenta tio n geometry a nd f racture mechanics, a f ragmentatio n mo del of f racture af ter blasting is pro posed. The fo recast model of fragsi ze by blasting has been established also o n these bases. The test result s are in acco rdance w ith the simulatio n result s. This fact shows that the model i s reasonable.
1997 Vol. 14 (1): 115-121 [
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2418
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122
PRELIMINARY RESEARCH ON TECHNIQUE OF COYOTE DIFFERENTIAL BLAST
Lou Delan
The paper int roduces the resea rch and the applications of the technique of the coyo te di fferentai l blast. By co nclusio ns and analyses of the engineering practices, several ca lculating methods fo r implementatio n of the coy ote dif ferential blast are propo sed.
1997 Vol. 14 (1): 122-126 [
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2403
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127
EMERGENCY DEMOLITION BLASTING FOR AN INCLINED 18 - STOREY BUILDING
Jin Renxie
The paper describes the desig n of an emerg ency blasting and i ts engineering wo rk fo r a recently-bui lt suddenly-inclined 18- sto rey building. Thi s ex perience is v aluable as reference and has practical meaning s fo r the emergency engineering.
1997 Vol. 14 (1): 127-132 [
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2405
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133
RESEARCH AND TRIAL-PRODUCE OF CRANE BEAM SIDESLIDING SYSTEM FOR DJK-140 ERECTING MACHINE OF BRIDGE SPAN
Xu Guangli
The paper analy zes the existing pro blems o n the desig n o f the side-sliding system fo r the erecting machine of bridge span. The improv ed measures are sug gested, and a new - ty pe mo re suitable bridg e span erecting machine has been manufactured.
1997 Vol. 14 (1): 133-138 [
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2417
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139
RESEARCH AND EXPLORATION ON FORMATION A COMPLETE SET OF CONVEYING EQUIPMENTS FOR CONSTRUCTING SINGLE-TRACK TUNNEL WITH NON-RAIL TRANSPORT
Wei Jutian Jia Yunkuan
Based on the analyses o f the recent si tuatio n and the exi sting problems of the conveying equipments fo r co nst ructing sing le-t rack tunnels wi th non-rai l t ranspo rt , several conceptio ns and sugg estio ns are proposed for reference in situ.
1997 Vol. 14 (1): 139-146 [
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2417
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147
DISCUSSION ON VENTILATION DESIGN OF AIR-CONDITIONING FOR SUBWAYS
Zeng Feilun
Combined with the v enti la tio n desig n of ai r-co ndi tioning for Gua ng zho u Met ro , the pa per di scusses in detail the problems co ncerned w ith the subw ay′s v enti latio n, dust exhaust , installation of equipment , etc. The ex periences a re valuable as reference for practica l design.
1997 Vol. 14 (1): 147-151 [
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2422
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152
SELECTION OF ENVIRONMENT CONTROL SYSTEM FOR SUBWAY
Gong Yun
During the procedure of making a feasibi li ty research repor t fo r lig ht rai l of a certain ci ty in the south regio n, by making compa rison betw een sev eral exi sting and recentlybuil t subw ay in China, the impo rtant reasons for selecting di fferent enviro nment co nt rol systems are analy zed. Ano ther envi ro nment cont rol sy stem-- an open-ty pe ai r-screen system has been propo sed also by the autho r in this paper.
1997 Vol. 14 (1): 152-156 [
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2416
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157
DECIDE ON METHOD TO RELAY DISTANCE LIMITED FACTOR OF SYNCHRONOUS OPTICAL CABLE SYSTEM
Jiang Changyian
The paper analy zes the limi ted facto r and decides on the metho d to desig n for the relay dista nce of the sy nchronous optical cable line system. On the basi s of that , a simple deci sion method i s provided fo r limited in a ttenuatio n or limi ted in dispersio n.
1997 Vol. 14 (1): 157-162 [
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2402
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163
ANALYSIS ON APPLICATION OF MS371A COMMUNICATION INSTRUMENT MADE IN JAPAN
Zhao Peng
Combined wi th the present si tuatio n o f the f requency characteri stics of the railway communication in China, the paper analy zes the functio ns o f the MS371A communica tion inst rument impo rted f rom Japa n, and proposes it s specific a pplicatio n methods. Thi s communicatio n inst rument has been put into practice.
1997 Vol. 14 (1): 163-167 [
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168
CONSTRUCTION PRACTICE ON NONWELDING NETWORK STRUCTURE WITH BOLTED SPHERICAL JOINTS
Shen Qun
The paper analy zes the co nst ructio n metho d of the passeng er w ai ting hall wi th a netw o rk st ructure w hich i s rising in the recent y ea rs. Th e assembly metho d by using the ladder- ty ped all-round scaf fo ld has been int ro duced also in detai l.
1997 Vol. 14 (1): 168-171 [
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2519
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172
APPLICATION OF MEN-DUG PILES IN THE CONSTRUCTION
Zhou Xinpei
Men-dug piles w ere ex tensively ado pted as the retaining wall s fo r pit s in the desig n and construction o f the Gua ng zho u Subw ay. In the paper, the w ri ter int roduces briefly the types, desig ning methods and co nstructing sequence of the pi le-retaining wa ll, and makes some sugg estions acco rding to hi s ow n ex perience.
1997 Vol. 14 (1): 172-176 [
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177
ANALYSIS AND IMPROVEMENT ON TDW-2× 500 HORIZONTAL JACK
Wang kecheng
The applicatio n status of TDW-2× 500 ho ri zontal jack i s systematically a naly zed and the improving sugg estio n is proposed. It is valuable as reference for co nst ructio n w o rk in si tu.
1997 Vol. 14 (1): 177-178 [
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179
SEVERAL PROBLEMS ON PURSUING CONSTRUCTION SUPERVISION SYSTEM OVERALL FOR ENGINEERING PROJECTS
Wu Mingyou
Based o n the summarization o f the practical experiences o n co nst ructio n supervisio n sy stem fo r engineering project s and the ana lyses of the existing problems fo r recentstag e o f the superv isio n system, the paper proposes that in the process of pursuing ov eral l the supervi sio n system, w e should pay a t tention to suit measures to local co ndi tio ns, to seek uni ty of cog nition, to standardi ze the archi tectural ma rket , etc.
1997 Vol. 14 (1): 179-182 [
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