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Research on Coarse-grained Soil Collapsibility in Gobi Region Zhihong Nie1, a , Kun-Li 2,b, Jian-Xia1, c 1 School of Civil Engineering, Central South University, Chang-sha China; 2 China Railway First Survey and Design Institute Group Ltd Xi-An , China a niezhih@126.com, b leekun_lz@sina.com，c 472249219@qq.com Keywords: Gobi region, Coarse-grained soil, Collapsibility, Collapsibility mechanism Abstract: This paper has carried out soaking load test, routine soil test, X diffraction, scanning electron microscopy on coarse-grained soil in Gobi region, analyzed the coarse-grained soil collapsibility and explored the mechanism of collapsibility generation.
References [1] Gao Guorui, Journal of Geotechnical Engineering,1990 (04):Page 1-10.
In Chinese [4] Cheng Dongxing, Liu Zhiwei, Zhang Xihong, Engineering Investigation, 2010 (12): Page 27-31.
In Chinese [5] Li Duanmin, Yan Wuqing, Northwest Water Resources & Water Engineering, 1995 (04).
In Chinese [6] Zhang Guanhong, Chen Wenwu, Wang Shengxin, Geotechnical Engineering Technique, 2006 (03): Page 136-139.

Analysis of RC member’s reliability subjected to eccentric compression based on Monte Carlo simulation Wen-feng DUAN1 Chang Liu1 (1.College of Civil Engineering ,Jilin Jianzhu University, Changchun 130118) Keywords :reliability, eccentric compression, Monte Carlo simulation, eccentricity.
We can use the first order second moment method to reliability analyze of engineering structures if we know the distribution of random variables and performance functions[2].
[2] ZHAO Guofan: Structural Reliability Theory and Application Engineering [M].
Advances in Engineering Software, 2008, 39(6):505-513
Rocco S, A rule induction approach to improve Monte Carlo system reliability assessment, Reliability Engineering & System Safety, 2003, 82(1):85-92

Research on Experiment Modal Parameters Identification of Parallel Manipulator ZHU Chun Xia a, LIU Bo, CHEN Zhi Wen and WANG Jing School of Traffic and Mechanical Engineering; ShenYang Jianzhu University; Shenyang 110168; China a zhcx.neu@gmail.com Keywords: Parallel Manipulator; Vibration characteristic; Parameters identification; Modal Abstract.
Modal analysis principle of Parallel Manipulator Modal analysis is a modern method and mean for parameters identification for most engineering system, such as mechanical system, civil engineering structure and bridge and so on.
(2) Damping Ratio From above analysis, the transfer function of system according to vibration differential equation and laplace transform is showed as following: For getting the frequency which corresponding the maximum response we should analyze amplitude frequency and phase frequency characteristic curves of single degree of freedom system showed in Fig.2 From Fig.2 we can get the undamped natural frequency is： (1) The damping ratio is: The damped natural frequency is: Fig.2 The amplitude frequency and phase frequency characteristic curves of single degree of freedom syste Due to the damping of general engineering structure is small（）, so the damped natural frequency can be considered as followed: (2) From above we can got that: the peak value of curve of amplitude frequency response characteristics is the natural frequency of system.
[3] Miao Yu, Ji Zhao, Lei Zhang, et al, Study on dynamic characteristics of virtual axis hybrid polishing machine tool by flexible multibody dynamics, Journal of Engineering Manufacture-Proceeding of the Institution of Mechanical Engineers Part B, 218(9) (2004) 1067-1076

Numerical Study on 3D Surface Crack Growth LI Mingtian1,2, a, LI Shucai2,b ,HE Junlian1, c 1Department of Civil Engineering, Shandong Jiaotong University, Jinan, China 2 Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China almt21st@163.com, blishucai@sdu.edu.cn, chejunlian@hotmail.com Keywords: 3D surface crack, numerical study, stress intensity factor, fracture criterion Abstract.
Journal of Engineering Mechanics, Vol.116(1990) , p. 1686 – 1705 [4] C.A.
Zhou: Key Engineering Material, Vols. 261-263(2004), p. 705-710 [6] M.T.
Hu: Journal of Hydraulic Engineering.
Ayhan: Engineering Fracture Mechanics, Vol.71(2004), p. 1059-1079 [9] F.

Experimental Research of Matrix Suction of the Unsaturated Red Clay Wenfeng Zhao 1, a, Long Li2, b, Yuhang Xiao 1,c 1 School of Mechanics and Civil Engineering, China University of Mining and Technology Beijing 100083, China 2 Harbin Institute of Technology 150001，China azhaodilinu@163.com,blilong1a@163.com, cvictor6528@163.com Key words: matrix suction; water content; dry density; characteristic curve; unsaturated red clay Abstract: Matric suction has great impact on the strength of soil.
Introduction Red clay, which is a kind of complex medium with diverse physico-mechanical properties, plays an important role in engineering practice.
Influence of repeated drying and wetting cycles on mechanical behaviors of unsaturated soil.Chinese Journal of Geotechnical Engineering, Vol32(2010) p.41-46(in Chinese)
Chinese Journal of Geotechnical Engineering,Vol25(2003) p405-408(in Chinese)
Journal of Sichuan University(Engineering Science Edition), Vol36(2004) p1-6(in Chinese).

Rocco Lahr4,d, Juliana Cortez Barbosa1,e, Elen Aparecida Martines Morales1,f, Felipe Oliveira Lima1,g 1 Faculty of Wood Industrial Engineering, State University of São Paulo “Júlio de MesquitaFilho”, Itapeva, 18.409-010, Brazil. 2Department of Mechanical Engineering, Faculty of Engineering of Guaratinguetá (FEG), State University of São Paulo “Júlio de MesquitaFilho”, Guaratinguetá, 12.516-410, Brazil. 3Department of Civil Engineering, Federal University of São Carlos, São Carlos, 13565-905, Brazil. 4Department of Structural Engineering, Engineering School of São Carlos (EESC/USP), São Carlos, 13566-590, Brazil.

Yan: Brief history of upheaval buckling studies for subsea buried pipeline, Journal of Pipeline Systems Engineering and Practice, 4 (3) (2013), pp. 170-183
Yu: Pipeline on-bottom stability analysis based on FEM model, Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, 4 (2011), pp. 329-333
Iavarov: Modern calculation methods of trunk pipelines, Magazine of Civil Engineering, 3 (2010) pp. 43-47
Jukes: Upheaval buckling analysis of partially buried pipeline subjected to high pressure and high temperature, Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, R. 4, (2011) pp. 487-494
Choi: Behavior of marine pipelines under seismic faults, Ocean Engineering, 27 (5) (2000), pp. 473-487

Study on the energy-saving design of underground building Nan Li Deptment of Resources and Civil Engineering, Shandong University of Science & Technology, Taian, Shandong , China; linan96@126.com, Key word: underground building  lighting ventilation energy saving Abstract: With the rapid development of national economy, energy saving, emission reduction and low carbon economy is paid more and more attention, the construction is the major energy consuming of all energy intensive industries, energy saving and emission reduction of underground building which is represent the general trend, this paper is based on the analysis of the characteristics of the underground space, the effective energy saving measures from the lighting, ventilation are proposed, in order to achieve the best effect to reduce the energy consumption.
Currently, light guide lighting technology of underground space is used in more and more engineering projects, it receive the good energy saving effect, such as the Beijing Olympic Center underground garage using light pipe system. 
In accordance with the completion of the design and calculation of design effect simulation and lighting control by light pipe system engineering,  after the completion of the measured, when cloudy day outdoor illumination conversion was 2000 Lx, the average indoor illumination  reaches 75 Lx, meet the requirements of the standard, light guide system of garage for energy saving of 24470 kW annually[5].
Design of underground building artificial lighting should be based on the use of underground engineering, space size, architectural form, material, color and form of the smoothness of the comprehensive consideration of lamps and lanterns. 
References [1] Yizhong,Tan, Progress in the study of energy saving and emission reduction in underground engineering, Chinese Journal of Underground Space and Engineering,(2010),vol,11 [2] Wenjie Liu, Energy saving design of underground buildin，Industrial Construction,2009,vol,2 [3] YongweiGuo,Discussionon  ventilation  design of underground building lighting, Technology and Application of Building ,(2012)vol,2 [4] Wei Feng The application of solar energy light guide lighting technology in underground building,Scientific Research in Sichuan Building,(2011)vol,9 [5] Fang Du, Energy saving lighting design of the underground construction, Building Energy Saving,(2011)vol,1

Introduction Evapotranspiration is one of important items in water balance computation for hydrology and water resources engineering, summarized from soil and plant steam in atmosphere.
Lin in: “Using Geographic Information System to Estimate Regional Evapotranspiration, Master Thesis, Dep. of Civil Engineering, Chung Yuan Christian University, Taiwan(R.O.C) (1997) [3] C.C.
Chen in: Applying Satellite Remote Sensing on Regional Evapotranspiration Estimation, Master Thesis, Dep. of Hydraulic and Ocean Engineering, National Cheng Kung University, Taiwan(R.O.C) (2002) [4] B.K.
Zeng in:“Study on Estimating Evapotranspiration from Satelite Remote Sensing, Master Thesis, Dep. of Hydraulic and Ocean Engineering, National Cheng Kung University Taiwan(R.O.C) (2004) [5] C.
Fan in: The Impacts of Climate Changes on Groundwater Recharge in Taiwan, Masters Thesis, Institute of Agriculture Engineering, National Taiwan University, Taiwan (R.O.C) (1998)

Study on Structural Vibration Control by Using Shape Memory Alloy Bo Zhou 1,2a, Yanju Liu3,b , Guangping Zou1,c , and Jinsong Leng 2,d 1 College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China 2 Center for Composite Materials & Structures, Harbin Institute of Technology, Harbin 150080, China 3 Department of Aerospace and Mechanics, Harbin Institute of Technology, Harbin 150001, China a zhoubo@hrbeu.edu.cn, byj_liu@hit.edu.cn, czouguangping@hrbeu.edu.cn, dlengjs@hit.edu.cn Keywords: Shape memory alloy, Damping characteristic, Vibration performance.
Acknowledgements This study is supported by the National Natural Science Foundation of China (Grant No. 95505010), National '863' Development Plan of High Technology of China (Grant No. 2006AA03Z109), Open Foundation of Institute of Engineering Mechanics of China Seism Bureau (Grant No. 2007B02) and China Postdoctoral Science Foundation (Grant No. 20080430933).
The authors wish to acknowledge them and Harbin Institute of Technology and Harbin Engineering University of China.
Yoon et al.: Key Engineering Materials, Vol. 385-387 (2008), p. 213 [2] B.
Yoon: Key Engineering Materials, Vol. 324-325 (2006), p. 335 [3] C.