Table of Content

30 January 2012, Volume 46 Issue 01 Previous Issue    Next Issue

Architechural Science

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Integrated design of Under-and Above-ground Urban Space：Strategies for Effective Development of Underground Space LU Ji-Wei, CHEN Yong 2012, 46 (01):  1-6.  Abstract ( 4880 )   Save This thesis discussed the feature, type, impacts and development trend of Chinese underground public space in the urbanization background. Through the analysis of the main influencing factors, the thesis indicates that aboveground space provides a basis for the development of underground part. Then it focuses on the design strategies of integrated underground and aboveground urban public space from two aspects —— space morphology and integration model. Finally, the research summarized the main approaches to realize the integrated design, which provides reference and inspiration for effective development of underground public space. References | Related Articles | Metrics

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Techniques of the Integration Construction of Underground Space in Comprehensive Urban Transportation Hub JIA Jian-a, b , XIE Xiao-Lin-a, ZHANG Yu-a, YANG Ke-b 2012, 46 (01):  7-11.  Abstract ( 3059 )   Save Ningbo railway station is a comprehensive urban transportation hub in soft soil area. The project, railway station and subway transfer station as the main body in combination with other modes of transportation, such as bus stop and short-distance passenger-transport bus station, was introduced. This paper focuses on the difficult technical problems in the construction of underground space integration, which include project planning, normal operation of both temporary bridge and existing railway line in the excavation, the security and stability of deep and large foundation pit, pit in foundation pit and adjacent foundation pit in the excavation, planning the structure as a whole and longitudinal settlement coupling. Moreover, on the basis of analysis, some reasonable effective technical measures were suggested to ensure the fast, highquality and economical construction of underground space integration. References | Related Articles | Metrics

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Planning and Design Mode of Underground Roads in City Centers LIU Kun, PENG Fang-Le 2012, 46 (01):  13-17.  Abstract ( 2987 )   Save Based on the analysis of the reasons for construction of underground roads in city centers this paper discussed the classification, planning and design methods and developing adaptabilities of underground roads in city centers. The results show that the developing of the kinds of underground roads in city centers which are bulit to improve the roads network structure and to separate crossborder traffic is adapt to renovation of city centers while the developing of the kind of underground roads in city centers which is bulit to improve the arrival and departure traffic in core area is adapt to the city center which is under planning and constructing. References | Related Articles | Metrics

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Construction Mode of Urban Underground Complex in Multi-center City YANG Ke-a, JIA Jian-a, b 2012, 46 (01):  18-22.  Abstract ( 3429 )   Save The current situation about the development of the underground space in China was summarized, and then the function of underground complex in city was analyzed, as well as the building mode of underground complex. The results show that the construction of underground complex with the opportunity for development of urban rail transit, can not only promote regional economic development, but also accelerate to form the layout of multi-center city. Besides, the construction mode of underground complex integration is worth to be promoted because of its obvious economic and social benefits, and is in conformity to the request of building a resource-conserving and environment-friendly society.   References | Related Articles | Metrics

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Survey of Underground Space with Peacetime and Wartime Functions in Shanghai SHEN Zhi-Hong, ZHOU Xing-Yi 2012, 46 (01):  23-25.  Abstract ( 3968 )   Save  Through the introduction of several built projects of underground space with civil defense function in Shanghai, this paper pointed out that the design of underground civil defense constructions should not only combine both functions in peacetime and wartime, but also consider the economic rationality. The combination of civil defense construction and urban underground space development is the important work needed to emphasise, which would achieve many purposes of reasonable utilization of underground space, expanding the field of human existence to realize sustainable development of China’s urbanization. The speed of civil defense engineering construction will be accelerated as well. References | Related Articles | Metrics

Communication and Transportation

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Disposal Method of Unequal Settlement of Metro Tunnel in Operation in Shanghai Soft Ground WANG Xiao-Bing, WANG Ru-Lu, LIU Jian-Hang 2012, 46 (01):  26-31.  Abstract ( 4493 )   Save In the light of the actual condition of Shanghai very soft water saturated ground and the remedial maintenance of metro tunnel, slight soil disturbance grouting disposal method, which is the renewal of fracture grouting, was performed to treat unequal settlement of Shanghai metro tunnel with relatively simple equipment and easy handling which are suited to local condition of Shanghai. The method was carried out in operated tunnel by use of the accumulative times of nightly stopping of subway operation. The choice of grout technology, grout equipment and grout construction parameters were described. Through the engineering example, this paper detailed the design and construction of this grouting program as well as the result of practice. The results indicate that this method can treat unequal settlement of Shanghai metro tunnel by minimizing soil disturbance induced by grout injection and achieve good compensation effect of ground settlement. References | Related Articles | Metrics

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Fire Monitoring Technology in Underpass Based on Realtime Feedback FANG Yin-Gang-a, ZHU He-Hua-b 2012, 46 (01):  32-35.  Abstract ( 2772 )   Save According to fire risk in underpass, a fire monitoring technology based on realtime feedback was presented. And the composition and principle of the realtime feedback fire monitoring system were also described. This system will be used in Tongji underpass. And its function was demonstrated. The temperature field, smoke field and fire source location will be threedimensional virtual displayed on computer screens by this system. It is expected to help staff to guide passenger evacuations and to rescue more effectively. References | Related Articles | Metrics

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Stability Evaluation for the Nested Excavations of Co-Construction in Urban Underground Space Developments ZHENG Jun-Xing, JIA Jian 2012, 46 (01):  36-41.  Abstract ( 3286 )   Save An approach was presented to assess the basal heave stability of a kind of distinctive excavations——nested excavations which means that a comparatively smallscale excavation must be located in a large-scale one in some special projects. A new formula targeting on calculating the factor of safety against basal heave of nested excavations was developed in this research, grounding on the widely used conventional computing method for the single excavation. The achievement in this paper has been applied in a typical case in which the structure of a metro station of Line 13 lies beneath basement of the Shanghai Natural History Museum and thus they are co-constructed and form the nested excavations. The results demonstrate that the new formula of this paper could reasonably compute the factor of safety against basal heave of the nested excavations. References | Related Articles | Metrics

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3-D FEM Back-Analysis of an Over Size and Deep Excavation ZHANG Jun-feng, WANG Jian-hua, CHEN Jin-jian, HOU Yong-mao 2012, 46 (01):  42-46,52.  doi: 10.16183/j.cnki.jsjtu.2012.01.010 Abstract ( 4021 )   HTML ( 891 )   PDF (724KB) ( 755 )   Save The three dimensional finite element model was built up to simulate an over size and deep excavation traversing shield tunnels, and the effects on surroundings and tunnel heave due to excavation were analyzed. From monitored retaining wall horizontal displacements and tunnel heave, a simplex method was employed for back- analysis of soil parameters. According to the back-analysis program based on simplex method, optimized soil parameters were attained after finite element analysis. The final tunnel heave was predicted by the optimized soil parameters. The results show that the predicted tunnel heave is close to monitored data, which guarantees the effectiveness of back analysis by this paper. Figures and Tables | References | Related Articles | Metrics

Architechural Science

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Shield Type Selection and Its Control on Tunneling Across Various Structures LIAO Shao-Ming-1, XU Yi-Zhi-1, CHEN Li-Sheng-2, SHEN Cheng-Ming-2 2012, 46 (01):  47-52.  Abstract ( 3317 )   Save  Based on massive shield crossing engineering projects in Shanghai, the selection of shield types, small disturbance control parameters as well as the stress and displacement distribution during shield crossing metro lines, sensitive structures, shallow foundations and pile foundations, were thoroughly investigated. The deformation control parameters and the correspondent construction control measures were put forward. The critical spacing between shield and pile toe was proposed based on the study on stress distribution at the level of pile toe. References | Related Articles | Metrics

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Effect of Dewatering on the Existing River-Crossing Tunnel in Soft Ground WU Huai-Na-1, XU Ye-Shuang-1, SHEN Shui-Long-1, LIU Yan-Bin-2 2012, 46 (01):  53-57.  Abstract ( 3649 )   Save Based on a history case of excavation above the existing tunnel, this study analyzed the effect of nearby dewatering on the existing rivercrossing tunnel by the finite element method. The influence factors such as the declined depth of groundwater, the extracting layer, the dewatering time and the dewatering method are considered. The results show that dewatering above will cause the settlement of the tunnel. The dewatering depth of groundwater and the tunnel settlement present a linear relationship. Pumping from the lowpressure artesian aquifer will lead to larger tunnel settlement. The longer the dewatering lasts, the larger settlement of tunnel will occur. The result also shows that dewatering inside the foundation pit will cause less amount of tunnel settlement than dewatering outside. References | Related Articles | Metrics

Communication and Transportation

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Analysis of Risk and Its Evolvement for Large Slurry Shield Crossing the Airport at Shallow Depths SHAO Wei-1, ZHOU Song-2, HU Jin-Song-3 2012, 46 (01):  58-63.  Abstract ( 3015 )   Save  The purpose of this paper is to solve the problem of risk control for airport crossing project. The project of Xianxia vehicle tunnels crossing Shanghai Hongqiao airport taxiway at shallow depths is employed. Risks at the phases of design, construction and operation, as well as their inter-correlations were studied. Moreover, the conception of risk evolvement between phases was proposed for identification and control of risks during the entire process to some extent. The result indicates that, risk evolvement between phases was an important part of risk recognition and risk analysis, and thus should be analysed in detail to provide relevant countermeasures. References | Related Articles | Metrics

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Dynamic Modeling of Underground Structure Based on Viscoelastic Boundaries under Construction Vibration YU Hai-tao, YUAN Yong, ZHU Yi-min, WANG Jian-hua 2012, 46 (01):  64-68.  doi: 10.16183/j.cnki.jsjtu.2012.01.014 Abstract ( 2845 )   HTML ( 9 )   PDF (768KB) ( 697 )   Save A three-dimensional finite element model based on viscoelastic boundaries was developed to effectively capture the dynamic behavior of the metro transfer hall hub of the People's Square. Dynamic characteristics of the underground structure during vibration induced by dismantling temporary reinforced-concrete supporting system were studied, resorting to the Newmark method. In-situ monitoring data were used to calibrate the proposed method in this paper. The results show dynamic characteristics of the underground structure under vibration loading are accurately simulated by the presented model based on viscoelastic boundaries, and thus spurious reflections on the interface of soil and structure can be effectively eliminated. Prediction on the possibility of structural resonance under vibration loading can also be made by the proposed model, which is of benefit to decision making of engineering design and construction. Figures and Tables | References | Related Articles | Metrics

Communication and Transportation

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An Engineering Accident Analysis and Treatment of Prefabricated Engineering Piles in Shanghai LIANG Zhi-Rong, LI Zhong-Cheng, LI Cheng-Wei 2012, 46 (01):  69-72.  Abstract ( 2936 )   Save Combined with a practical engineering example, the causes of deviation and fracture on prestressed highintensity concrete (PHC) pipes and prefabricated square piles were analyzed on condition of deep and soft soil foundation in Shanghai. Some causes, such as geologic site condition, engineering characteristics of prefabricated pile, construction technology and excavation, were discussed. In addition, the measures that core grouted and anchor static pressure pile to remedy the kind of accidents were also presented from the aspects of design and construction. References | Related Articles | Metrics

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Auto Inspection Technology for Detecting Leakage in a Shield Tunnel HUANG Yong-Jie-1, LIU Xian-1, YUAN Yong-1, LIU Chao-Ming-2, WANG Xiu-Zhi-2 2012, 46 (01):  73-78.  Abstract ( 4000 )   Save This paper introduced an auto inspection method for leakage in shield tunnels based on automatic identification of digital image, which uses an invented inspection vehicle to collect the field seepage information, and to grab the seepage through an algorithm. Then the method can finish the work after a statistical data process. The field test shows the results have high accuracy, little error, and the technology has great practical engineering application value. References | Related Articles | Metrics

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Superposition Algorithm for the Outer Pit Passive Earth Pressure Influenced by Inner Pit for Pit-in-Pit SHEN Ming-Liang, LIAO Shao-Ming, SHAO Wei 2012, 46 (01):  79-83.  Abstract ( 4830 )   Save The concerning passive pressure was analyzed based on Coulomb soil pressure theory and superposition principle. According to different shapes of slide wedges, four analytical models and formulas were proposed respectively. The mechanical results calculated by the method in this paper and that of Shanghai technical code for excavation engineering were compared, which demonstrates that the existence of inner pit will greatly reduce the passive pressure of outer one while the design based on Shanghai technical code for excavation engineering will lead to overestimating stability of pitinpit excavation. References | Related Articles | Metrics

Architechural Science

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Influence of Constructing Hand-Dug Piles Closing to Retaining Wall JIN Guo-Long, WANG Yong, GU Kai-Yun 2012, 46 (01):  84-88.  Abstract ( 3344 )   Save Based on an engineering case, 2D and 3D finiteelement tools were employed to analyze the mutual impact of constructing hand-dug piles close to retaining wall. Combined with the analysis data, some measures were implemented. The results show that the hand-dug piles have obvious space arch effect. When the net distance between 3 meter diameter handdug piles and retaining wall is 5 meters, only simple design measures are needed to ensure the safety of the foundation pit.   References | Related Articles | Metrics

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Effect of Channel-Type Transport Technology of Earthwork on the Deformation of Top-Down Deep Foundation Pit LIU Ying-jing, CHEN Jin-jian, WANG Jian-hua, XU An-jun, LI Yao-liang 2012, 46 (01):  89-93.  doi: 10.16183/j.cnki.jsjtu.2012.01.019 Abstract ( 3608 )   HTML ( 10 )   PDF (390KB) ( 735 )   Save The soft soil creep (SSC) model was adopted to simulate the whole process of a deep foundation pit with different construction conditions. Comparisons of the effect of different construction technologies on the deformation of foundation pit and the surroundings were made. The results show that the deformation features of the foundation pit under both construction technologies are similar. The top-down channel-type construction technology is more effective on controlling the deformation of the enclosure structures, and has less impact on the surrounding by decreasing the ground settlement, the lateral displacement of soil outside the pit and the upheaval mount of soil at the pit bottom. While considering the train load, with top-down channel-type construction technology, the deformation of the railway subgrade is safe. Figures and Tables | References | Related Articles | Metrics

Communication and Transportation

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Issues on the Seismic Design and Analysis of Ultra-long Immersed Tunnel YU Hai-Tao-1, 2a , YUAN Yong-2b, XU Guo-Ping-3, CHEN Yue-4 2012, 46 (01):  94-98.  Abstract ( 5020 )   Save Based on the literature reviews of the present seismic research on immersed tunnels, four key issues on the seismic design and analysis of ultra-long immersed tunnel with the background of Hongkong-Zhuhai-Macao engineering were addressed: calculation method for dynamic interaction between tunnel segment and surrounding soils, analytical method for seismic response of immersed tunnel subjected to non-uniform seismic loading, seismic mitigation method of immersed tunnel, and shake table test technology of immersed tunnel. These issues will be the focus of further research on seismic design and analysis of immersed tunnel in China. References | Related Articles | Metrics

Aeronautics & Astronautics

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Optimal Analysis of Construction Schemes for Urban Shallow-Buried Multi-arch Tunnel by Single-Tunnel Method DUAN Wei-Dang-1, YUAN Cheng-Hai-2, ZHENG Wen-Bo-3, SHI Zhan-4, CAI Yong-Chang-3 2012, 46 (01):  99-104.  Abstract ( 3562 )   Save Building a large-span multi-arch tunnel by single-tunnel method under complex urban shallow-buried conditions is a challenging engineering problem. Without the middle wall supporting, it is very important to choose a suitable construction method and scheme, which is used to control the deformation of the surrounding rock, and reduce the adverse effect of construction process. By finite element method, the excavation effects of two construction methods, the bench method and the center cross diaphragm (CRD) method, were compared based on the displacements of surrounding rock and lining. The result shows that the CRD method has advantages in coupling the surrounding rock. For the CRD method, it is better to excavate the outer than the inner regions. References | Related Articles | Metrics

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Web-Based Dynamic Monitoring System of Shield Tunnel Construction XIAO Min-1, LIAO Shao-Ming-1, ZHOU Song-2 2012, 46 (01):  105-108.  Abstract ( 4404 )   Save Based on real-time collection methods of parameters from the shield tunnel construction and environmental monitoring data, the web-based remote monitoring system was constructed. With the use of ASP.NET technology, the system is designed by B/S mode to seek to maximize “thin client” objectives. In the process of data acquisition, processing and analysis, pattern recognition according to construction mechanics is used in deep analysis of the collected data. The system achieves dynamic display of remote real-time monitoring and the analysis results can reflect risks in construction. References | Related Articles | Metrics

Communication and Transportation

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A Numerical Analysis of Structural Stress of SinkStyle Road and Influence Factors in the Process of Heat Balance PENG Xin-1, ZHU Ming-2, XU Ye-Shuang-1, SHEN Shui-Long-1 2012, 46 (01):  109-113.  Abstract ( 3761 )   Save Stress distribution condition on the action of heat balance environment of the structure of a certain sink-style road was analyzed by finite element method, which is to get the position and causes of possible failure in the structures of the sink-style road. The impact factors such as thickness and Young’s modulus of the structure anti-floating baseplate, the reinforcement ratio, and positions of reinforcement were also discussed. The results indicate that opening (type I) cracks might be produced firstly at the bottom of the continuous reinforced concrete (CRC) layer. Both the thickness of the structure anti-floating baseplate and the location of the reinforcement pose a notable influence on the generation of type I cracks. References | Related Articles | Metrics

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Seismic Response Analysis of Nuclear Low Pressure Cylinder and Condenser WANG Fu-fang, LIU Ying-jing, XIANG Guo-wei, WANG Jian-hua 2012, 46 (01):  114-118.  doi: 10.16183/j.cnki.jsjtu.2012.01.024 Abstract ( 3209 )   HTML ( 9 )   PDF (1836KB) ( 684 )   Save A series of finite element method (FEM) analysis were carried out to study the seismic response of the nuclear low pressure cylinder and condenser, based on the code for seismic design of building. Seismic response characteristics of the nuclear low pressure cylinder and condenser were obtained through the seismic time history analysis and spectrum analysis. The results show that the seismic response of the nuclear low pressure cylinder and condenser presents some vibration model features of plate structures, and has a better aseismic performance than general building. Figures and Tables | References | Related Articles | Metrics

Architechural Science

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Numerical Simulation of Wind Loading Shape Coefficient on Gable Roof with Cornice TU Jia-Huang, ZHOU Dai, LI Jun-Long 2012, 46 (01):  119-125.  Abstract ( 3494 )   Save Based on Reynolds-averaged Navier-Stokes equations and the Spalart-Allmaras turbulence model, the wind pressure distribution and wind-loading shape coefficients on gable roof of low-rise buildings with cornices were studied by using stabilized fluid finite element method. The effects of some key parameters, such as length and height of cornices and roof pitch, on wind pressure distribution upon gable roof and the flow around low-rise buildings were analyzed. The result shows that wind loading shape coefficient on the roof is remarkably affected by vertical cornices, but slightly affected by horizontal cornices which are under strong minus wind pressure environment. Furthermore, the cornices with both vertical and horizontal sections greatly change the wind pressure distribution on the roof.   References | Related Articles | Metrics

Aeronautics & Astronautics

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Numerical Simulation on Blocking Smoke Effect of Shield Machine Water Curtain WANG Xin-1, JIN Xian-Long-1, YANG Pei-Zhong-1, WU Hui-Ming-2 2012, 46 (01):  126-129.  Abstract ( 4175 )   Save In the case of power distribution box fire occurred outside shield machine in narrow tunnel during construction, the mesh model including tunnel, fire source, ventilation pipeline and so on was created and the blocking smoke effect of water curtain was simulated. Then some improvements were made based on the defect of original shield machine water curtain system, and the blocking smoke effect of improved water curtain system was verified. As well as the spread of smoke in tunnel was studied by changing numbers and flow rates of sprinklers. The results show that water curtain can effectively prevent the external smoke from spreading into the side of shield machine and ensure the security of staff near the driving surface. Reasonable sprinklers layout can make the water droplets distribution more uniform, which can prevent the spread of smoke better. And a modest increase in the numbers and flow rates of sprinklers of water curtain system can improve the blocking smoke effect. References | Related Articles | Metrics

Architechural Science

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Numerical Analysis of Flow Past Two Bluff Bodies with Square-Section in Tandem Arrangement WU Qi-二, ZHOU Dai, FU Gong-Yi 2012, 46 (01):  130-135.  Abstract ( 3130 )   Save The flow past two tandem squaresection bluff bodies with various spacing ratios was investigated numerically by using a second-order CBS finite element algorithm. The study mainly focuses on the effect of spacing ratios (ratio of center-to-center distance to width of bluff body) on the flow characteristics at a Reynolds number of 100. The mean drag coefficient and the root-mean-square drag and lift coefficients, the Strouhal number as well as the pressure coefficient are plotted as a function of the spacing ratio. The results reveal that spacing ratio has a great impact on the flow characteristics and the critical spacing ratio range is identified between 4.50 and 4.75， since the mean and root-mean-square force coefficients jump suddenly in this spacing ratio interval. When two bluff bodies with square-section are placed in tandem, the mean drag coefficient can be reduced effectively. The results also show that the root-mean-square lift coefficient of the downstream bluff body is always greater than that of upstream bluff body due to the wake interference. A significant difference of surface pressure coefficient distribution can also be observed. References | Related Articles | Metrics

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Experimental Investigation on Propagation of Impact Load Induced Vibration in Sandy Soil XIANG Guo-wei, YE Guan-lin, WANG Jian-hua 2012, 46 (01):  136-141.  doi: 10.16183/j.cnki.jsjtu.2012.01.028 Abstract ( 3940 )   HTML ( 13 )   PDF (1289KB) ( 699 )   Save Model test was performed to investigate the propagation and decay of impact-load induced vibration in sandy soil, and the effect of vibration screening panel was furthermore studied. The results show that the polystyrene wave-absorbing panel placed at the boundary of test box is effective in controlling the boundary reflection of vibration waves. The impact-load induced vibration decays rapidly with the increase of distance from the load point, and the attenuation of peak acceleration along horizontal, vertical and diagonal direction can be well fitted by the function of amax=kR-β. Polystyrene screening panel, behind which vibration can be reduced, has the negative effect of intensifying the vibration just before it, this may be caused by the reflecting of vibration wave at the screening panel. Figures and Tables | References | Related Articles | Metrics

Aeronautics & Astronautics

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Numerical Simulation of Heterogeneous Rock Dynamic Fracture Based on Virtual Internal Bond Model KE Chang-Ren-1, 2 , JIANG Jun-Ling-2, GE Xiu-Run-1, 3 2012, 46 (01):  142-145.  Abstract ( 3716 )   Save Heterogeneity was incorporated into the virtual internal bond, Monte-Carlo method was used to evaluate the heterogeneity of rock, and the numerical simulation of dynamic fracture process of rock sample was then done. The simulation results show that for red stone, when the heterogeneity factor m=5, the simulation results of virtual internal bond model agree well with that of the test. References | Related Articles | Metrics

Architechural Science

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Seismic Analysis for Curtain Wall Structure of Shanghai Center Tower in Consideration of the Principal Structure YANG Yan-Zhi-1, JIN Xian-Long-1, WANG Jian-2, LI Ye-2 2012, 46 (01):  146-151.  Abstract ( 3229 )   Save Aiming at the curtain wall structure of Shanghai Center Tower, this paper established a finite element model of the realscale building by considering the combination of the curtain wall and the principal structure, then the lower order modes of the building was predicted. The distribution of the acceleration magnification factor, interstory drift ratio and stress of supporting structures was investigated under light earthquake and severe earthquake. The numerical results indicate that the designed curtain wall structure has an outstanding performance on seismic resistance, and it meets the requirement of the engineering application. References | Related Articles | Metrics

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Unified Failure Model on the Reinforced Concrete Members with Annular Section LUO Hua-Xun, LIU Xi-La 2012, 46 (01):  152-157.  Abstract ( 3369 )   Save Reinforced concrete structural members with annular section are commonly used in concrete chimneys, concrete pipes and elevated water tanks, as well as in large bridge columns and offshore platforms. So it is very necessary to study the mechanism of reinforced concrete annular section structures subjected to complex force combination. Based on traditional Nielsen model, a unified failure model on reinforced concrete members with annular section under combined forces of tension, compression, bending, shear and torsion was formed. The advantages of this model are to consider the dowel actions of the reinforcements and reasonably to consider the shear carrying capacity of concrete, which makes the calculation results more close to the practical situations. Then, the theoretical results of this model are compared with Nielsen model and a series of experimental results of annular section members. The comparison verifies that the new model is feasible for the design and calculation of annular section members. References | Related Articles | Metrics

Aeronautics & Astronautics

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Wind Field Simulation and Fluid-Structure Interaction Problems Based on CFD Method GUI Xiao-Lan, ZHOU Dai, LI Jun-Long 2012, 46 (01):  158-166.  Abstract ( 5427 )   Save The turbulence models and numerical methods required in the computational fluid dynamics(CFD) were described, especially, the different kinds of numerical methods were introduced. And the description methods and solution strategies used in the fluidstructure interaction problems were clarified, the strong coupling method and loose coupling method were discussed. Moreover, the technique of mesh generation and updating and the methods for data exchange on the interface were summarized, some problems in the grid modeling were pointed out. References | Related Articles | Metrics