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Effects of Aluminum Content on Plastic Formability of Wrought Mg Alloy Sheet Produced by Twin-roll Casting Process Hisaki Watari1,a ,Yoshimasa Nishio1,b, Mayumi Suzuki2,c , Toshio Haga3,d, Keith Davey4,e and Nobuhiro Koga 5,f 1 Graduate School of Engineering, Dept. of Production Science and Technology, Gunma University, 29-1, Hon-cho, Ohta, Gunma, 373-0057, Japan 2 Graduate School of Environmental Studies, Dept. of Material Science and Engineering, Eco-material Design and Process Engineering,6-6-02, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi,980-8579, Japan 3 Graduate School of Engineering, Osaka Institute of Technology, Dept. of Mechanical Engineering, 5-16-1 Omiya Asahi-ku Osaka, 535-8585, Japan 4.The University of Manchester, School of Mechanical, Aerospace and Civil Engineering, PO BOX 88 Sacville Street, Manchester, M60 1QD, UK 5 Nippon Institute of Technology, Dept. of Mechanical Engineering, 4-1 Gakuen-dai, Miyashiro-machi, Minami-Saitama-gun, Saitama-ken, 345-850, Japan awatari

Axial Strength of Concrete-Filled Square Steel Tubular Columns Reinforced by Inner Circular Steel Tube Xinzhong Li a, Xueying Wei b , Junhai Zhao c School of Civil Engineering, Chang An University, Xi’an, China, 710061 alixinzh@chd.edu.cn, bweixy@chd.edu.cn, czhaojh@chd.edu.cn, Keywords: Composite Structure; Concrete-Filled Steel Tube Column; Axially Compression; Ultimate Strength; Unified Strength Theory Abstract: This paper presents the theoretical and experimental results of concrete-filled steel tube columns subjected to axially compression.
However, double skin steel tube columns were also developed and have been used in engineering application.
References: [1] Wei S, Mau S T, Vipulanandan C，Mantrala S K: Journal of Structural Engineering，1995，121(12)：1806-1814
[2] Wei S，Mau S T，Vipulanandan C，Mantrala S K: Journal of Structural Engineering，1995，121(12)：1815-1821
[4] Schneider SP: Journal of Structural Engineering, 1998, 124(10): 1125-38

Main causes of ground collapse From previous engineering experience, main cause of ground collapse is ground movement caused by ground disturbance and ground loss in shield construction process.
The smaller soil deformation surrounding excavation face is, the smaller ground disturbance is, and the smaller ground movement is, the smaller surface settlement is. [4,5] Midas GTS 3d numerical simulation analysis on subway shield construction Midas GTS which is an excellent finite element method ( FEM ) 3D numerical simulation software in geotechnical engineering field was used to simulate shield construction process and calculate ground surface settlement, this is a new technology, we can calculate the stress, strain, displacement state of ground surface and soil surrounding tunnel in shield construction process according to the parameters of field engineering.
Based on the calculation, we can predict whether ground collapse occurs or not before construction, it is worth to be applied to shield construction engineering.
Institution of Civil Engineers and Geotechnical Engineering. p.17–29. (2000) [4] Rankin, W.
Engineering geology of underground movements. p.79-92. (1988) [5] Hurrell, M.

Study on the Prediction Method for Brittle Failure of Hard Rock Based on Acoustic Emission Test SC.Xu1,2, a, BR.Chen3,b and CY.Jin4,c 1 School of architecture and Civil Engineering, Shenyang University, Shenyang, Liaoning 110044, China 2Key Laboratory of Liaoning Province for Enviromental Rock and Soil Engineering, Shenyang, Liaoning 110044, China 3 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071,China 4 Research Center for Safe Deep Mining, Northeastern University, Shenyang, Liaoning 110044, China axusuchao@163.com, bbrchen@whrsm.ac.cn, cjcy@163.com Keywords: hard rock, acoustic emission, precursory characteristics, Abstract.
Application of comprehensive assessment using fussy mathematics to rock burst prediction in underground caverns[C] Proceedings of the 2nd National Congress of Chinese Society for Rock Mechanics and Engineering.
Chinese Journal of Rock Mechanics and Engineering,1998,17(5)：493–501.
Chinese Journal of Rock Mechanics and Engineering, 2001 20(3): 306－309
Chinese Journal of Geotechnical Engineering,2002, 24(2):229–232.

The numerical analysis of failure length about buried steel pipeline with frusta under static load and dynamic load Xiaoli Li1, a, Zhaolong Yin2,b 1 Northeast Petroleum University Civil Construction Engineering College, China 2 Daqing Oilfield Construction Group Company Limited Oilfield Construction Company, China alixiaoli0459@163.com, b35143799@qq.com Keywords: buried pipeline; collapse; gulch; failure length Abstract.
Therefore, determining how to be ensured for the buried pipeline in the future earthquake to be run safely and reliably ,is a problem [3] that is urgently needed to be solved in engineering design and management department.
References [1] Xiaoli Li, Zhongping Li, Zhaolong Yin.Science Technology and Engineering , Vol. 10(2010), p.1517～1518, in chinese
[2] Kamel EI Hmadi et al.Soil spring for buried pipeline axial motion.Joumal of Geotechnical Engineering, Vol. 11(1998), p.1335～1339 [3] Bathe, K.J.and Bolourchi,S.Large Displacement Analysis of Three-dimensional Beam Structures.
International Journal for Numerical Method in Engineering, Vol. 14(1998), p.960～985 [4] Morris, N.F.The Use of Model Superposition In Nonlinear Dynamics.Computes& Structures.

Research and progress on CA mortar emulsifying asphalt of ballast-less slab track Mingchao Qi 1,a，Xiaoxuan Li2,b and Zhongqi Jia2,c 1School of Civil Engineering, Hefei University of Technology, Anhui, Hefei, 230009, China 2School of Chemical and Engineering, Hefei University of Technology, Anhui, Hefei, 230009, China aqmc@hfut.edu.cn, blxx2000@sohu.com, cjiazhongqi1210@yahoo.cn Keywords: Ballast-less Slab Track, CA Mortar, Special Asphalt Lotion, Research Progress.
Fu:Railway Engineering.
Wang,et al: Railway Engineering.
Li: Journal of Railway Engineering Society.
Chen: Engineering Sciences.

Time effect of the pile bearing capacity in dredger fill Huayang Lei 1, 2, a, Qianqian Lv 1, b 1Department of Civil Engineering, Tianjin University, Tianjin 300072, China 2Key Laboratory of Civil Structure and Safety of Binhai (Tianjin University), Ministry of Education, Tianjin 300072,China aleihuayang74@yahoo.com.cn,bdidola20@163.com Keywords: Dredge fill, Pipe pile, Bearing capacity, Time effect, Excess pore water pressure.
This engineering is located in the free port logistics processing zone in Dongjiang ,Tianjin.
So there is reference and guiding significance in engineering practice.
[14] Pile foundation engineering manuals committee.
Pile foundation Engineering Manual, first ed., China architecture &building press, Beijing, 1998

Experimental Study and Finite Element Analysis on RPC Footwalk Braces Zhi-Gang Yan1,a, Gui-Ping Yan1,b 1 School of Civil Engineering & Architecture, Beijing Jiaotong University, Beijing 100044, China a zgyan@126.com, bgpyanql@yahoo.com.cn Keywords: Reactive powder concrete; footwalk brace; experimental study; finite element analysis Abstract.
The experimental results show that the mechanical performance of RPC footwalk braces can satisfy the engineering requirements and there is enough safety margin for footwalk braces.
NS1 NS2 NS3 NS4 OS1 OS2 OS3 OS4 Average Crack load 10.35 8.45 9.95 10.05 8.15 8.55 7.65 8.35 8.94 The ratio of the crack load to the design load is 8.94/3.52=2.54, which is safety enough for the engineering requirements.
The loading capacity of the RPC footwalk braces can satisfy the engineering requirements.
[6] Bayard O., Plé, O.: Fracture mechanics of reactive powder concrete: material modeling and experimental investigations, Engineering Fracture Mechanics, 2003, 70(7-8), pp.839~851

Separation of bridge deflection signals based on ICA Chunhui Tang1,a, Hong Yang2,b, Xiaping Liu3,c, Zhuo Sun4,d 1,3,4College of Civil Engineering, Guangzhou University, Guangzhou 510006, P.R.
China 2College of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, P.R.
In order to reject environmental factor effect from long-span bridge deflection signal, this document introduced the basic theory of independent component analysis (ICA) and applied FastICA algorithm to separate background engineering simulation signal, which was based on using vector-dimension-augmenting technique to process the signal after adopting fir lowpass filter to rejecte the high frequency component, and finally relized the separations of live load deflection, temperature difference deflection and long-term deflection.
Structural Engineers, 2006, 04(5): 24-28.

Completely and reasonably workability evaluation to SCC has an obviously influence in concrete engineering field.
Contrary to traditional workability test methods，the test apparatus designed in this method are convenient to measure the concrete rheological parameters, which are yield stress τ0 and plastic viscosity η .Overcoming one point Test’s disadvantage, the apparatus is simple and practical, which is fit for field engineering.
Self-compacting concrete: The Institution of Indian Engineering, Vol.86,145-150
Wang: Journal of Materials in Civil Engineering, Vol.21(2009), p765