Search results

It is imperative for 3D modeling of mining or underground engineering to precisely and efficiently describe various interfaces, which is also the precondition for 3D visualization of underground engineering.
By using spatial topological relation between NURBS surfaces of other structures, geometrical description of 3D modeling of complex geological structures, open-pit mining (or underground engineering) and underground tunnels can be realized.
d0 d1 di dm-1 dm s2(u) s3(u) sm(u) u u0 u2 um+1 um+p u u0 u2 um+1 um+p d0,0 d0,j d0,n di,0 di,j di,n dm,0 dm,n dm,j v v0 v2 vn+1 vn+q Fig.1 Control information of NURBS curve (p=3) Fig.2 Control information of NURBS surface 3-D interface modeling by NURBS The geology and structures of underground engineering is complicated, with various structural faces and interfaces interweaving.
M.T. 2006. 3D modeling and analysis of engineering geological information in large hydraulic and hydroelectric projects.
Tianjin: school of civil engineering of Tianjin university.

Reproduction of Traditional Architectural Form—Design of engineering teaching group as an example, Yunnan University Ying Cao1, a, Jinpeng Yang 2,b 1 School of Mechanics & Civil Engineering of China University of Mining and Technology (Beijing), D 11, Xuyuan Road, Haidian District, Beijing 100083, China. 2 China Architecture Design & Research Group, No.19, Chegongzhuang Avenue, Beijing 100044, China.
This paper aims to discuss design methods to reproduce traditional architectures through typology research by engineering teaching group of Yunnan University and points out that the so-called reproduction of traditional architectural form is to present its type and the architectural form created in the design must be a new form based on the corresponding realistic conditions.
Design of engineering teaching group, Yunnan University The base of engineering teaching group of Yunnan University is located at the side of the campus, composed by a number of college architectures.

Experimental Research for the Soft Soil Foundation Reinforced by Vibro-replacement Stone Pile HU Hai-ying1 a, ZHANG Yu-cheng2 b HUANG ZHi-xing3, c 1 College of Water Conservancy and Civil Engineering,South China Agricultural University,Guangzhou 510642 2.
School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China; a 282392530@qq.com b 125340752@qq.com c 780217380@qq.com Keywords: vibro replacement stone columns; soft soil foundation; pile-soil stress ratio; experiment Abstract.
Journal of Engineering Geology. 2005,13(1):1-7
Journal of Disaster Prevention and Mitigation Engineering. 2003,23(3):22-27
Chinese Journal of Rock Mechanics and Engineering. 2000,19(4):522-525

Research on the Latest Maneuver Moment of Aircraft and the Minimum Safety Distance between aircrafts in Free Flight Zhaoning Zhang1,a, Zhen Liu1,b, Dongman Zhang1,c 1 Civil Aviation University of China / College of Air Traffic Management, Tianjin, China azzhaoning@263.net, blyyanyan430@163.com, czdmflies@126.com Keywords: air traffic, free flight, latest maneuver moment, time margin, minimum safety distance, target level of safety Abstract.
Introduction With the rapid development of civil aviation industry, air traffic volumes are increasing and the current air traffic control mode already can’t satisfy the needs of the traffic.
Bakker, Modeling Lateral Separation and Separation for Airborne Separation Assurance Using Petri Nets Simulation, vol.83(2007), p.401-414 [5] Zhaoning Zhang, Jinwei Shen, Jimin Liu, Lateral collision risk model based on CNS position error, Journal of Traffic and Transportation Engineering, vol. 9(2009), p.110-113, In Chinese [6] Zhaoning Zhang, Jimin Liu, Lili Wang, Assessment of Longitudinal Collision Risk on Parallel Routes Based on Communication, Navigation and Surveillance Performances, Journal of SOUTHWEST JIAOTONG UNIVERSITY, vol.44(2009), p. 918-925, In Chinese [7] Jimin Liu, Zhaoning Zhang, Jinwei Shen, Assessment of Lateral Collision Risk on Parallel Routes Based on Communication, Navigation, and Surveillance Performances, Aeronautical Computing Technique, vol.39 (2009), p.14-18, In Chinese [8] Ming Cai, Zhaoning Zhang, Lili Wang, Research on Collision Risk in Free Flight, Aeronautical Computing Technique, vol. 41(2011), p. 51-56, In Chinese [9] Zhaoning Zhang, Jiangli Zuo
, Study on Free Flight Collision Risk Based ON Brownian Motion, China safety Science Journal, vol. 22(2012), p. 43-47, In Chinese [10] Zhaoning Zhang, Yiming Wang, Research on Collision Risk in Free Flight Based on Fuzzy Stochastic Differential Equations, China safety Science Journal, vol. 22(2012), p.14-18, In Chinese [11] Zhaoning Zhang, Lili Wang, Dongbin Li, Introduction to Security Assessment on Airborne Separation, Science Press, Beijing(2009), p. 147-165, In Chinese [12] Doc 9869-AN/462, Manual on required communication performance (RCP), International Civil Aviation Organization, Montreal (2006) [13] ICAO, Doc 9613-AN/937, Manual on required navigation performance[S].
Montreal: International Civil Aviation Organization, Second Edition (1999) [14] PAVLICEVIC F, Euro control perspectives on required surveillance performance (RSP), Montreal: International Civil Aviation Organization, SASP/WG/WHL/8, WP/05(2005) [15] Li Zhang, Shudong Huang, Aiwu He, HongYang, Human Reliability Analysis Method, China safety Science ,vol.3(2001), p.6-15, In Chinese [16] G.J.

Methods for Crack Prevention of Large Volume Concrete Foundation of High-rise Building Guo Jinjun1,a and WANG Wei2,b∗ 1 Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China 2 Department of Civil Engineering, Shaoxing University, Shaoxing 312000, China a gjjcivil@yahoo.cn, bwellsking.wang@gmail.com Keywords: crack prevention; concrete foundation; high-rise building; control methods Abstract.
Crack prevention of high-rise building foundation is an interesting and difficult issue to engineers.
Introduction In building engineering, large volume concrete is referred to the concrete either with minimum section size greater than 80 cm or with maximum temperature difference between internal and the surface greater than 25℃ induced by cement hydration heat during concrete consolidation, and high-rise building foundations are main components of large volume concrete.

Petersburg) Astafyeva Ekaterina Russia, Saint-Petersburg State Polytechnical University (Institute of Civil Engineering) astafyeva.ekaterina@gmail.com Keywords:foundation settlement, soft soils, soil models, Plaxis, Fem-models, rheological model, hardening soil model, field observations, monitoring Soft soils are well represented as the foundation of buildings all over the world.
Geotechnical engineering software For calculating settlement geotechnics usually use engineering methods described in the regulatory literature: SNiP[1] and SP [2](Russian norms), Eurocode[3] (EU norms) and standards of other countries.Calculations of buildings settlement are alsocan be done with use ofnumerical methods (software).Manysoftware products, such as«Plaxis», «Ansys», «Abaqus», «Fem-Models», are developed to studythe stress-strain state of grounds.
Engineering calculations results of final settlement of the western wingwere made using different methods: 1) 360 mmbySNIP 2.02.01-83* [1]; 2) 301 mm bySP 22.13330.2011[2]; 3) 358 mm by method Egorova [1]; 4) 371mm by Eurocode 7 [3].
Results of engineering calculations show thatcurrent standards of engineering calculation methods underestimate the final settlement on more than 10%.
Magazine of Reconstruction of historical cities and geotechnical engineering.

Steel structure, which has higher bearing capacity, smaller sectional dimension, convenient construction and economical investment, can be abroad used in engineering.
Therefore, the study on the reinforcement and restoration of steel structures has become an important part in the field of civil engineering.
ABAQUS[1-4] can simulate most typical engineering materials performance because of a number of material model library.
It is increasingly used in all kinds of theory research and engineering application.
Plastic-damage model for cyclic loading of concrete structures [J], Journal of Engineering Mechanics, 1998, 124(8): 892-900

Study on the deformation forecasting for the tunnel surrounding rock using the neural network WANG Guo-Feng1, ZHAO Wen1, GUAN Yong-Ping1, LIANG Lei2 1School of Resource & Civil engineering, Northeastern University, Shenyang, 110819, China 2PanJin Safety Supervision Station of Construction, PanJin, 124010, China wanggf_china@163.com, wenneu@163.com, guanyongping@126.com, liang221@126.com Key words: rock pressure; measure, deformation of the tunnel surrounding rock; neural network; data normalization; mapping Abstract: The non-pillar sublevel caving method is used in Iron Mine in Banshi.
The analyzing results show that the maximum error between the forecast and the testing data is 13%, which indicates that this method is useful and feasible to the mining engineering.
YES Finish Fig.1 BP algorithm flow chart Engineering applications BP neural network inversion procedure was established by means of C language based on the above ideas.
Engineering background Banshigou Iron mine was located in 10 kilometers northwest of the Baishan city, Jilin province.
Introduction to Artificial Neural Networks[M], Beijing: Higher Education Press:2001 [2] Wu-sheng Hu, Neural network theory and its engineering applications[M], Beijing: The publishing house of Surveying and mapping,2006 [3] De-feng Zhang, The MATLAB Neural networks application design[M], Beijing: Machinery Industry Press,2009 [4] An-nan Jiang, Xia-ting Feng.

Analysis of Construction Risk Control Project for Shaft Close to Current Iron Tower Huaishi Bo1, a, Huakuan Liu2, b 1Lanzhou City Power Supply Corporation, Gansu, China 2 School of Civil Engineering, Beijing Jiaotong University, Beijing, China abohsw@163.com, bliuhuakuan2011@163.com Keywords: Electric tunnel; Shaft construction; Isolated pile; Grouting consolidation; Numerical simulation Abstract.
General Situation of the Engineering Shallow Tunneling Method is used in the engineering of electric cable sending-out of 110kv transformer substation in XiGuan Intersections, the city of LanZhou (the section of underground excavation in the west of LeiTan river).
The engineering geological characteristic close to shaft 1 in the second section is pure filling, silt, fine sand and pebble upside down.
References [1] Yang BenWei, Grouting reinforcement technique on Sandy pebble watery stratum, Engineering Science, 2010 (12):56-57
[3] Zhai JieQun, Jia Jian, Xie XiaoLin, Practice of Partition Wall in the Building Protection Projects near Deep Excavation, Chinese Journal of Underground Space and Engineering, 2010, 6(1)

A satisfactory component optimisation and a manufacturing specific design of the components presupposes, however, the integration of design, computation, and manufacturing knowledge into a single system using modern CA technologies to realise simultaneous engineering.
This is why such products are being used more and more in various fields of traffic engineering, e.g. in automotive and railway construction (Fig 1).
Other further advanced application fields can be found in civil engineering, in mechanical and apparatus engineering, in material handling technology, in lifting and convoying systems as well as in multipurpose applications.
The programme is commonly used in civil engineering for analyses of three dimensional framework or spaceframe constructions.
The forth sub-module data evaluation is an entry point for knowledge-based engineering.