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., Beer Sheva 84111, Israel 3MK Technology, Auf dem Schüffel 15, 58513 Lüdenscheid, Germany 4Technion – Israel Institute of Technology, Department of Materials Science and Engineering, Technion City, Haifa 32000, Israel aJoachim.Wendt@hzg.de, bBorisB@dsmag.co.il, cLennart.Stutz@web.de dGerrit.Kurz@hzg.de, eSabrina.Schmitt@MKTechnology.de, fmtrbam@tx.technion.ac.il, gDietmar.Letzig@hzg.de Keywords: Wrought magnesium alloys, magnesium sheet, formability, mechanical properties, rare earth elements, texture Extended Abstract Currently magnesium alloys are used for different applications in the transportation industry where cast magnesium alloys dominate the market.
For example, body protection systems for civil services like police, custom officers and prison personnel currently include anatomically shaped aluminium alloy sheets.

They proposed this size as the optimal choice. 1.2 Fiber Concrete was invented in the early-19th century, but the brittle’s nature of concrete made civil engineers to search for a new kind of reinforcement [13].
Department of Civil and Environmental Engineering Structural Engineering CHALMERS UNIVERSITY OF TECHNOLOGY, Göteborg, Sweden, 2005
Civil Engineering Journal, 4 (4), April, 2018. http://dx.doi.org/10.28991/cej-0309137
International Conference on Engineering, Applied Sciences and Technology.
Ye (2016), Probability & Statistics for Engineers & Scientists, Ninth edition.

Study on the Deformation and Fracture of Bolted Roadway with Infrared Characteristics Ruling Yan1,2, a ,Yongjun Zhang3,4, b , Liqian An 1 and Lingtao Mao1 1 School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, 100083, China 2 Hegang Branch, Heilongjiang Longmei Mining Group, Hegang 154100, China 3 School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China 4 State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, 221008, China ayrling2003@yahoo.com.cn, bzhangyj_bull@163.com Keywords: Infrared radiation, Surrounding rock, Thermo-mechanical coupling, Stress concentration, Stress relaxation, Infrared precursor.
At present, there are three main methods for bolt supporting design: engineering analogy, theoretical calculation and numerical simulation [1].
Along with the wide application of the numerical method in mining engineering, using numerical simulation method for bolt supporting design in coal roadway also has been developed rapidly.
The TIR radiation detection technology has a broad prosperity in the field of mining engineering, underground engineering and side slope engineering.
Acknowledgment Financial supports from Natural Science Foundation of China under Grant no. 50904040, the China Postdoctoral Science Foundation under Grant no.20090461159 and State Key Laboratory for GeoMechanics and Deep Underground Engineering under Grant no.

Introduction Cross flow around circular cylinders is encountered in a variety of applications, including mechanical devices and civil structures.
Flow development around circular cylinders is often of critical importance for the design and operation of engineering applications.
This regime is of particular interest since it is common to a wide range of engineering applications.
Nevertheless, such geometries are quite common in engineering applications, e.g., civil structures.
Menter, "Two-equation Eddy-viscosity Turbulence Model for Engineering Applications", AIAA Journal 32, pp. 1598-1605, 1994.

Vague information widely exists in many aspects of mechanical analysis of geotechnical engineering.
Acknowledgements This work was supported in part by Zhenjiang City Engineering Survey and Design Institute.
Civil Eng.
Salawu: Canadian Journal of Civil Engineering, Vol. 24 (1997), p. 218 [30] M.
Sinha: Journal of Transportation Engineering, Vol. 117 (1991), p. 320 [31] J.

Stochastic imperfection mode superposition method for stability analysis of Lattice domes LIU Huijuan1,a, YANG Lufeng2,b, LI Yanlei3,c 1The Key Laboratory of Engineering Disaster Prevention and Structural Safety of the Chinese Ministry of Education, School of Civil Engineering and Architecture, Guangxi University, Nanning, 530004; 2Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, School of Civil Engineering and Architecture, Guangxi University, Nanning, 530004; alhj8110@163.com, b lfyang@gxu.edu.cn,c lyl20130517@163.com Keywords: single-layer lattice dome; stochastic imperfection mode superposition method; the least favorable distribution of imperfection; critical buckling load; Timeshenko beam theory.
Thus their application in engineering is limited for that.
Therefore, its application in engineering can be more reasonable and safe.
Journal of Hebei University of Engineering. 2007;27(4):10-14(in Chinese)
ENGINEERING MECHANICS 2004;21(3): 6-14(in Chinese)

The bottom steel plates of the tower wall are connected with steel baseplates by welding in practical desulphurizing tower engineering.
Engineering Mechanics, 2003, 20(6): 116―126.
Nanjing: Hohai University, School of Civil Engineering, 2009: 21−38
Journal of Structural Engineering, 1989, 115(5): 1244―1263
Journal of Structural Engineering, ASCE, 2001, 127(10): 1129―1136

Numerical simulation method to analysis of strengthening effect in the ZhongLong park Jinkui Li1, a, Yuebo Fan1, b and Huazhong Sun2, c 1 Dalian University Civil Engineering College, Dalian 116622, China 2 Hongdou Group, Jiangsu 214400, China ajinkee@126.com, bfan_yuebo@126.com, c541904724@qq.com Keywords: Landslide; soilworks; strengthening effect; safety factor.
Analysis on the study of slope stability is very important geotechnical engineering in the field of content.
On top of slope tillage (table) is by 1.50-4.20m thick soil and silty clay composition, slightly wet, loose soil, water saturation, engineering physics properties.
[2] Jia Yan, at the limit equilibrium method and the finite element method is combined with the analysis of Ping'a expressway slope stability [J]. subgrade engineering, 2012, (5).

Research on Lifetime Remaining of Bridge Based on Gray Theory Ying ZHANG1,a,Haixin HUANG2,b, Shoushan CHENG3,c 1Library, Hebei University of Technology, Tianjin 300401, P.R.China 2School of Civil Engineering, Hebei University of Technology, Tianjin 300401, P.R.China 3Key Laboratory of Bridge Detection＆Reinforcement Technology Ministry of Communications, Beijing 100088, P.R.China azyhhx30@aliyun.com, bhhxhebut@aliyun.com, css.cheng@rioh.cn Keywords: Existing Bridge; Lifetime Predication; Gray Theory Abstract.
Improved Gray Model,which can supplement and make full use of new information in time,on the basis of Gray Theory is tried to be used here,and compared with traditional model by analysizing an engineering case.The results show that the improved model can not only improve the precision of prediction,but also comply with the nature of dynamic property of bridge lifetime remaining,i.e.
Generate initial sequence N Test sequence Y 1-AGO Calculate whitened sequences and parameters a,b Formulate GM (l, 1) N Test accuracy Y Predication lifetime remaining N New information N =value given by expert Y Results Fig.1 Calculation procedure of Improved Model Engineering Case Application A cable-stayed bridge,being in 27 years service,has been completely inspected once evevy several years.According to the inspection data, the overall damage degree of the bridge by using the comprehensive evaluation method is evaluated and results are listed in Table 1.
Table 2 Index comparison between traditional model and improved model Indices Traditional model Improved model Relative error 10.35% 7.09% Ratio of variance 0.274 0.208 Accuracy 89．65% 93．921% Relative error 2.662% 2.659% Ratio of variance 0.0374 0.0370 Accuracy 97．338% 97．341% Summary To improve the accuracy of gray predication model, more reasonable boundary condition is suggested and dynamic predication technique based on metabolic theorem is combined.As a result of providing the improved model,which can accept the latest information and adjust itself to new situation.Moreover, sequence based on once accumulation is utilized to predict the changing law of lifetime remaining of bridge,so this eliminates the randomness of the original sequence to a certain extent.The results obtained by analysizing a engineering case show that the accuracy of Improved Model is superior to that of traditional model.

Bored pile is one of the most widely used foundation forms in civil engineering. 
Introduction Bored pile is widely used in engineering for its advantages of high bearing capacity, short construction period and effectively control on settlement. 
References [1]  Zhongmiao Zhang: Pile Foundation Engineering (China Building Industry Press, China 2007)
[5] Song Gu, Bin Jia, Yong Yao, in Subgrade Engineering, volume 6, chapter 147, In Chinese (2009)
[7] Xiaomei Zhou, Zhongwen Wang, in Geotechnical Engineering World, volume 4, chapter 9, In Chinese (2006)