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2004 Vol. 21, No. 1
Published: 2004-01-16
1
DISCUSSION ON THE CONTRACT OF CIVIL LEGAL ACTION
BAI ZHong-ren
Market economy is the contract economy. Contract is the bridge and link to take economic activities and get economic benefits for the enterprise. As one of main market bodies, the construction enterprise is hound to contract and normalized by Contract Law from bidding for a project to signing a contract ,from execution of the contract to project claims and from clearing of construction cost to treatment of contract disputes. Only are the characteristics of contract deeply understood，the flexible application of Contract Law can he made. This paper proposes the notable issues in the practice of execution of contract and Contract Law based on the description of a contract and its characteristics, which has guidance significance for correcting problems related to the contract in the complex economic activities by construction enterprise.
2004 Vol. 21 (1): 1-7 [
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2524
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8
THINKING UN IMPROVING CURE COMPETITION ABILITY OF STATE-OWNED CONSTRUCTION ENTERPRISE
LI ZHeng-ke
This paper describes the meaning of core competition ability of a enterprise and main form of expression of state-owned construction enterprise, analyses the main problems existed in the development of state-owned construction enterprise, proposes that the continuous innovation is the foundational way to resolve the problems and improve the core competition ability of an enterprise, and puts forward the concrete requirements for scientific and technical innovation，management innovation, getting good quality and culture construction of an enterprise in order to cultivate and improve the core competition ability of enterprise.
2004 Vol. 21 (1): 8-10 [
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2514
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11
THE STUDY OF SUPERVISION ON GEOTECHNICAL INVESTIGATION OF METRO ENGINEERING
LI Xiao-zhao, LUO Guo-Li, ZHUANG Gan-cheng, ZHANG Bo-wen,LIU Guang-cai,ZHANG SHen-xiong
Supervision on geotechnical investigation, which is different from the supervision on construction or design, is still in its beginning and being groped in China. The geotechnical investigation of metro engineering is more complicated and often calls for special requirements. therefore its supervision is more necessary. Taking the supervision on Nanjing metro project, the paper discusses the objectives, bases, procedure and main tasks of supervision on geotechnical investigation of metro engineering, and analyses its characters, principles should be followed and key points.
2004 Vol. 21 (1): 11-16 [
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2537
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17
STUDY ON PLAN OF ENTERPRISE’S ANNUAL PENSION PAID BY CONSTRUCTION ENTERPRISE
TONG Jie
This paper gives an introduction to the effects on the development of enterprise by the supplementary old-age pension paid by enterprise, namely enterprise annual pension ,required by setting up the multiple-level insurance system put forward by Chinese government, describes how to make the plan of enterprise's annul is a very important part of three social lad-age insurance system and is the dominant income for lots of retired workers.
2004 Vol. 21 (1): 17-19 [
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2465
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20
DISCUSSION ON NECESSITY OF INNOVATION FOR PROMOTING TRAFFIC CAPACITY IN THE SECTION BETWEEN YANANBEI AND XINFENGZHEN ON BA0JI-XI'AN RAILWAY LINE
LUO Jian-ping
The section between Yananbei and Xinfengzhen is an important component of" Baoji-Liuzhou gangway" which is one of "Eight Longitudinal Railway Lines" in the Chinese Railway network of "Eight Longitudinal Railway Lines". This paper comprehensively analyzes the necessity of innovation for promoting traffic capacity in the section between Yan'anbei and Xingfengzheng.
2004 Vol. 21 (1): 20-25 [
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2450
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26
PROJECT DESIGN OF GUOMAO STATION IN THE FIRST PHASE PROJECT OF NO. 10 LINE OF BEIJING SUBWAY
TIAN Qiao-hua
This paper gives a brief introduction to the project of Guomao Station in the first phase project of No. 10 Line of Beijing Subway and describes the project design and construction plan for Guomao Station in detail.
2004 Vol. 21 (1): 26-29 [
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2547
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30
FIELD OBSERVATION ON RESPONSES OF SOIL TEMPERATURE PROFILE TO CONSTRUCTION OF ENGINEERING PILES IN PERMAFROST
NIU Yong-hong，LIU Yong-zhi
The responses of soil temperature profile to construction of engineering piles in permafrost are studied by analyzing the in-situ data. For the specific situation observed, it is found that the soil temperature under observation is raised 0. 7℃，the temperature in the pile decreases to below 0 ℃ in 60 days after reaching its maximum value of 4℃，however, it may be a long process for the soil temperature around the pile to recover its original value.
2004 Vol. 21 (1): 30-33 [
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2505
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34
THE QUANTITY CONTROL OF EARLY STRENGTH AND HIGH PERFORMANCE CONCRETE UNDER LOW (NEGATIVE) TEMPERATURE IN PLATEAU FROZEN SOIL DISTRICT OF QINGHAI-TIBET RAILWAY
GU Lian-ping
Main of this text is the characteristics of early strength and high performance concrete under low (negative)temperature, Analyze the factor that affected enduring quality of early strength and high performance concrete under low (negative) temperature passed the large experiment，Bring up shoaled the construction process of early strength and high performance concrete under low (negative) temperature to ratio the control of private engineer; aptitude insure the concreteˊs enduring.
2004 Vol. 21 (1): 34-38 [
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2460
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39
NUMERICAL ANALYSIS OF TEMPERATURE FIELD IN SECTIONS OF VENTILATION SUBGRADE ON QINGHAI-TIBET RALWAY LINE
LIU ZHi-qing, LAI Yuan-ming
Some segments of Qinghai-Tibet railway are used the ventilated embankment to ensure the thermal stability for it pass through cold region. The finite element formulate was derived from the differential equation of three-dimension temperature fields taking into phase change by enthalpy-based methods and calculate the temperature distribution of the ventilated embankment under the case that the annual mean air temperature in Qinghai-Tibetan Plateau will be warm up by 2.6℃in the future 54 years and the air yearly-average temperature is about -2. 3℃ or the yearly-average temperature at the native surface is about -1℃.And compare the traditional embankment to the ventilated embankment under the same situation mention above, the ventilated embankment structure can ensure the thermal stability of embankment.
2004 Vol. 21 (1): 39-43 [
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2529
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44
STUDY ON SELECTION OF POWER UNIT AND MODE OF DRIVE OF PLATEAU RAILWAY MOTOR CAR
LIU Han-zhi, ZHA0 Li
The reliable, suitable and convenient railway motor car should be supplied for the construction of Qinghai-Tibet Railway Line, and the operation and maintenance as well as for emergency rescue of the line future. This paper studies，demonstrates，analyzes and sums up the technical issues related to the selection of the power unit and mode of drive of railway motor car used under the special working conditions of high altitude，low air pressure，oxygen deficit，low temperature, grand wind and sand.
2004 Vol. 21 (1): 44-47 [
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2445
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48
STUDY ON AUXILIARY DESIGN SYSTEM WITH THREE-DIMENSIONAL VISUALIZATION FOR RAILWAY LOCATION
DU Hong-xing, ZHOU An-li
This paper presents a new design method using techniques of Visualization and Virtual Reality to achieve the 3D mode of railway line. the key techniques of the visual CAD design and the means of realizing the 3D made are produced.
2004 Vol. 21 (1): 48-51 [
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2563
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52
EXPERIMENT AND STUDY ON LATERAL RESISTANCE OF TRACK ON RAILWAY CURVE
ZHAO Ying, GU Ai-jun, FAN Jun-jie
In this paper, the formular for calculating track lateral force，commonly used in our country, has been modified by means of experiment. The fitting forlmula for calculating the lateral force and a coeffience and calculating criteria for calculating track lateral force here given.
2004 Vol. 21 (1): 52-54 [
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2459
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55
LOCALE EXPERIMENTS OF HUMP TURNOUT INERTIA DERAIL REGULATION IN JINHUA EAST STATION
JIA Yue-jun，ZHOU Yu,LI Chao
By comparing with two experiments result, the regulation which were used in hump turnout are benefit for reducing inertia derail accidents，and the safety performance target has been improved. These locale experiments proved the regulation could generalize to apply.
2004 Vol. 21 (1): 55-59 [
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2519
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60
THE STUDY OF STABILITY OF THE TRENCH SLOPE IN NANPINGSHAN YUHUAI RAILWAY LING
LI ZHong，SONG En-qiang
The text has studied the geological factors that affect the stability of the side-slope in nanpingshan Yuhuai railway line with the theory of geology and mechanic. It analyses the reason of the coast and provide the best construct project based on mechanics analysis.
2004 Vol. 21 (1): 60-64 [
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2503
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65
STUDY ON ADVANCE GEOLOGICAL FORECAST IN TBM CONSTRUCTION OF NO. 1 TAOHUAPU TUNNEL
YANG ZHi-guo
The paper introduced characteristics and basic principles of Advance Geological forecase. Integrating practices of Taohuapu No. 1 Tunnel in Xian-Nanjing railway，the author compared the result of Advance Geological forecase and excavated tunnel，The results shows importance and good practicability in Advance Geological of tunnel.
2004 Vol. 21 (1): 65-68 [
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2439
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69
THE STUDY ON THE TRITIUM TEST FOR WATER GUSHING CAPACITY FORECAST PUT INTO QINGLING'S FULL-LENGTH TUNNEL OF XI'AN ANKANG RAILWAY
DU Hong-mei
This paper deals with the essential principle and method of radioisotope (tritium)applied to hydrogeogeological surveying of railway tunnel，The tritium content is used to calculate the relative age judge vertical zoning of hydrogeological features of groundwater controlled by structure, and then calculation vertical seepage velocity of groundwater, determine the recharge rate of groundwater.
2004 Vol. 21 (1): 69-72 [
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2453
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73
STUDY ON REINFORCEMENT PROJECTS FOR SLOPE FLABBY SUBGRADE EMBANKMENT BASED ON CENTRIFUGAL MODEL TESTS
ZHANG Liang，WEI Yong-xing，LUO Qiang
To study the deformation characteristics of slope soft-soil foundation under the loads of embankment，and investigate the reinforcement effects of driven piles and stabilizing piles，three groups of centrifugal model tests，separately with no reinforcement measures，driven piles and stabilizing piles，are carried out based on physic-mechanics parameters of a typical slope soft-soil foundation. The results obtained show that the deformation of foundation is mainly concentrated on the border side of the declivity, and that both driven piles and stabilizing piles can limit deformation of the slope soft-soil foundation and increase the stability of foundation, and that the effects of driven piles applied in control of deformation turn out to be more conspicuous than that of stabilizing piles.
2004 Vol. 21 (1): 73-76 [
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2503
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77
APPLICATION OF GPS IN MONITORTNG DEFORMATION OF LARGE-SCALED BRIDGE
SHU Xing-zhou,SU Xin,YANG Xiao-ming
This paper discusses the theory of designing GPS Network of Deformation Measurement first, and describes the method of implementing measurement and processing data of it, with referring the example that the measurement of deformation of the second bridge on Yangtse River of Wuhan, make some conclusions about it at last.
2004 Vol. 21 (1): 77-79 [
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2452
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80
CONSTRUCTION TECHNOLOGY FOR ,TACKING WORKS OF LARGE SPAN BRIDGE
LEI Wei-min
The introduction is given in details in this text about the jacking work method of large span bridge， it emphasizes the consolidation technology of the railway line，the practical guarantee measures for safety assurance is worked out ,the calculation is made for the jacking force of the framed structure ,and the inspection and calculation is also made for the front and rear works and the railway line consolidation works.
2004 Vol. 21 (1): 80-86 [
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2474
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87
A DISCUSSION ON FROST HEAVE FORCE ACTING ON TUNNEL LINING
WANG Jian-yu, HU Yuan-fang
Some measures may be used to provide frost protection for tunnel constructed in severe cold regions. Drainage systems for preventing groundwater accumulating and thermal insulated panels are often used. Even though, in most cases frost heave force acting on tunnel lining still appears obviously, ft usually causes lining deformed, cracked and broken. On base of tracing on mechanism and characteristics of frost heave force, different models for calculating it in case of rock and sail surrounding ground are adopted respectively.
2004 Vol. 21 (1): 87-93 [
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2503
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94
HIGH-SPEED TRAIN GOING THROUGH TUNNEL AERODYNAMICS CHARACTER MODEL EXPERIMENT ANALYSIS
WANG Ying-xue, GAO Bo,ZHA0 Wen-cheng,LUO Jian-jun
When high-speed train going through tunncl,a series of aerodynamics effect was created, including pressure variation in carriage and noises at tunnel exit, which are harm to passengers and environment. Building tunnel hood is efficient method #or solving these problems. In this paper, with model experiment, the function between impulsive wave and pressure grads and train speed were analyzed, the length effect of tunnel hood is compared, the relatively optimum tunnel hood length was ford.
2004 Vol. 21 (1): 94-98 [
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2467
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99
STRENGTHENING TECHNIQUE BY GROUTING WITH FILLING SILTY CLAY FOR DEEP BURYING KARST CAVE IN YUANLIANG MOUNTAIN TUNNEL
ZHANG Min-qing
This paper describes the strengthening technique by grouting and concrete construction process for deep burying karst cave with filling silty clay of Yuanliang Mountain Tunnel on Chongqing-Huaihua, The frequency of crossgrout occurring in tunnel construction can be reduced and the strengthening feeect by grouting can be ensured by adapting this technique. The technique is worth being widely adapted.
2004 Vol. 21 (1): 99-104 [
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2564
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105
ANALYSIS ON HAZARD OF TUNNEL IN WEAKEN ROCK
DU SHi-hui
According to geo-technical investigation and surveying for five tunnels in XiangYu railway, this paper analyzed the type and reason of hazard and gave the new tunnel's problem of surveying, designing and construction in weaken rock.
2004 Vol. 21 (1): 105-108 [
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109
CONSTRUCTION TECHNIQUE OF FLOATING PLATE BALLAST BED WITH CONTINUOUS-CASTING IN PLACE-METAL ELASTIC BUFFER FOR URBAN RAIL
TANG Jun, CHENG Gui-zhi
This paper describes the characteristics of the construction technique of floating plate ballast bed for subway at home and abroad and sums up the experience for the reference to the similar construction technique based on the construction technique of Floating plate ballast bed with continuous-casting in place- metal elastic buffer in a double-tracked horseshoe-shaped tunnel of Shengzheng subway.
2004 Vol. 21 (1): 109-112 [
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113
SUGGESTIONS TO PREVENTION OF DEFECTS ON CONCRETE SURFACE IN CONSTRUCTION OF TUNNEL LINING
CHEN ZHi
Aiming at the defects on concrete surface easy occurring in the construction of tunnel lining,such as bubble on surface，cavity on top, joint gap and oil sign on arch, this paper proposes the suggestions to construction technique, materials proportion and optimum as well as construction preparation, lining grouting， including the prevention measures in order to eliminate the defects of appearance quality on concrete of tunnel secondary lining.
2004 Vol. 21 (1): 113-115 [
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2471
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116
THE METHOD OF DETERMING THE DESIGN PULLING FORCES OF THE PRESTRESSED CABLE-ANCORS THAT SATISFYING THE EQUILIBRIUM CONDITIONS IN A NON-CIRCULAR SLIP-SURFACE OF A LAND-SLIP
JIANG CHu-sheng
In the past design and calculation, for the non-circular land-slip，the designing of prestressed cable-anchors is commonly adopted the design farces being determined previously,and the cable-anchors is determined according to the wholly equilibrium conditions, and the cable-anchor's forces are considered acted at the slip-surface in the forms of concentrated forces，in that they have been spread greatly because of the farces acted on the ground-surface have been passed through the slip-body, and the past method can't be found a theoretical reason，i. e.，satisfying non forces and moment equilibrium conditions，for this the method is not the most satisfactory. this paper has conducted a repeat calculated formula of determing the anchor's designing forces, it may have a great theoretical significance to a practical engineering.
2004 Vol. 21 (1): 116-118 [
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2484
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119
THE STUDY OF YARD-AND-STATION ROADBED'S TEMPERATURE FIELD OF QINGHAI-TIBET RAILWAY IN PERMAFROST REGION
MIN Dong-li,WEI Qing-chao,WANG Lian-jun,SU Yi,SUN Zeng-kui
The width of yard-and-station roadbed is twice over common single-track embankment. Based on the experimental data of Qinghai-Tibet railway's experimentation project,the paper analyses the character of yard-and-station roadbed's temperature field and artificial permafrost table，also discusses the rule of the process of embankment's freezing and thaw. The stability of embankment in permafrost region is also presented.
2004 Vol. 21 (1): 119-122 [
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2501
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123
RESEARCH ON CONSTRUCTION MECHANICS O} TWO KINDS OF CONSTRUCTION METHOD OF DOUBLE-ARCH TUNNEL
JIA Yong-gang, WANG Ming-nian
At present，rock collapse in the construction of double-arch tunnel. Problems of large area crack exist in linings. In this paper author analyses the mechanics of two different construction methods of double- arch tunnel including displacement, force of principal support and safety factor, come to some conclusion, which can provide some reference on construction of double-arch tunnel.
2004 Vol. 21 (1): 123-126 [
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127
DYNAMIC RESPONSE OF A CIRCULAR CAVITY IN POROVISCOELASTIC MEDIUM
LIU Gan-bin,HU Mao-gang,LIANG SHi-hua
In this paper, the dynamic response of an infinite circular cavity subjected to axially symmetric radial traction and fluid pressure in poroviscoelastic saturated medium is studied. The constitutive model presented by Carcione is used to describe the creep and relaxation behavior of medium. To obtain the solutions， two scalar potential functions are introduced. The analytical solutions of stresses, displacement and pore pressure are derived in transform domain by employing the technique of Laplace transform. A parametric study is made based on the numerical results by inverting the Laplace transform to illustrate the influence of the poroviscoelastic parameters. It is indicated that there are strong correlations among these parameters and the attenuation of radial displacement and pore pressure.
2004 Vol. 21 (1): 127-131 [
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2485
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