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Model tests research on extruding soil caused by close-mouth step cross-section pipe Pile Yang QingGuang1, a, Tian Jie1,b, LIU Jie1,c , Wang Yahui1, d 1 School of Civil Engineering,Hunan University of Technology,Zhuzhou 412007,China ayqg1210@126.com, b277213482@qq.com,c2860557969@qq.com,d 546425428@qq.com Keywords: Step cross-section pipe pile;compaction effect;model tests;penetration resistance Abstract.To study extruding soil caused of close-mouth step cross-section pipe Pile, model experimentals of five static piling tests with two constant cross-section pipe piles and three step cross-scetion pipe piles are performed in lab respectively and some observation points are installed for heave amount and horizontal displacement of soil surface around piles before tests.Results show that penetration resistance improved linearly with increasing of length of pile in soil and there has a turning point which become more and more obviously with increasing of average diameter of step
Soil plug and action of pile have obviorous relationship (Heerema[4] ) and it has been validated that there are relative settlement and skin resistance between inside walls of pile and soil plug from begin to end.The problem of relationship between inside walls of pile and soil plug is studied by FEM of grid refinement model (Chow [5]),but reliablilty of numerical solution is very closed with the ground model and parameter of soil.The soil plugging effect and sigle pile bearing capacity of pipe pile in artesian aquifer are researched by tracking monitoring and in-situ testing(Zhu[6]).The main effect factors to bearing capacity of pipe pile and sensitive range of compaction effect is researched by comparing the change of soil strength and pore water pressure during driving pipe piles(Yang[7]).
International Conference on Application of Stress-wave Theory on Piles(1985), p.319 [6]H.H.Zhu,Y.J.Xie and H.Z.Wang: submitted to Chinese Journal of Geotechnical Engineering, (2004) [7]S.B.Yang,Y.D.Li:submitted to Geotechnical Engineering Technique(2006) [8]J.J.Zheng,C.J.Nie and Y.E.Lu: submitted to Chinese Journal of Rock Mechanics and Engineering(2006) [9]Y.H.Liu,Z.Z.Chen and Z.J.Peng: submitted to Rock and Soil Mechanics(2007) [10]Y.Guo,W.Cui: submitted to Journal of hefei university of technology(2010) [11]B.He,Y.Yu and Z.C.Wang: submitted to Journal of Water Resources and Archi- tectural Engineering(2010)

Stability problems of frequency-converting rotation dynamics on concrete mixer Jinyue Tian 1, a, Beijing Hu 1,b , Baolin Yang 2,c , Xianfeng Wang 3,d 1 Institute of Construction Equipment Research, Jiangsu University, Zhenjiang, 212000,China 2 Huatong Kinetics Co.Ltd , Jiangsu, Zhenjiang, 212000, China 3 SANY Suote Transmission Co.Ltd, Jiangsu, Changshu, 215500,China atianjinyue@ujs.edu.cn, bhubeijing2008@sina.com, cyangbl@jhkinetics.com, dwxfaaron@sina.com Keywords: Concrete Mixer, Frequency-Converting Rotation, Phase-Frequency Characteristic.

Safety Assessment of Transmission Grid Based on Fuzzy Comprehensive Evaluation and BP Neural Network Yuansheng Huang a, Wei Fang b , Chengfang Tian c School of Business Administration, North China Electric Power University, China a hys2656@yahoo.com.cn, b fangwei_ncepu@yahoo.cn, c tcf0325@yahoo.cn Keywords: transmission grid, safety assessment, fuzzy comprehensive evaluation, BP neural network Abstract: In the practice of safety assessment on transmission grid, there is the variation degree of many indexes which can not be accurately described, and fuzzy comprehensive evaluation method can reflect the safety degree of every element.
[2] Yuan Xiaobo, Yang Zongxiao, Liu Gang: Application of systems approach in safety assessment of power plants.
[6] ZHA Jian lu, TIAN Qin mo, LI Sheng de: Systematic analysis of problem in comprehensive evaluation.
[7] Yang Bao'an, Zhu Ming: Study of Bank Loans Risk Management Based on Integrating ANN and ES.

References [1] Tan Tian-you, Liang Feng-zhen.
[4] Xie Tian-shan.
[6] Fang Wei, Yang Guo-rong, Ren Bing.

A Study of Protective Exploitation of Zhu de’s Former Residence’s Tourism Environment Shan Yang 1, a, Huan Li1, b * 1 College of Tourism and Urban-Rural Planning, Chengdu University of Technology, China, 610059 a51065097@qq.com, blihuancd@126.com *Huan Li is the corresponding author Keywords: tourism environment, resource characters, exploitation strategies, protective exploitation Abstract.
Such as Lang ya mount of five-pointed star shape, Guan mao mount with mysterious legend, Bai yang Lake with a reputation of “small three gorges” and undulating Sanxingzhai and so on.
(In Chinese) [4] Tian Xizhou: Discussion on tourism development and protection for old towns in Chongqing ( Journal of Chongqing JianzhuUniversity，2002,(6):17-20.)

[2] Hongli Wang; Yitai Ma; Jingrui Tian; Minxia Li.
[4] Jun Lan Yang, Yi Tai Ma, Sheng Chun Liu.

Analysis on stability of Dongchuan Landslide and the comprehensive management measure Jiangtao Xia 1, a, Chengzhong Yang 2,b and Shufang Wang3,c 1 Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huai’an 223001, China 2School of civil engineering, East China Jiaotong University, Nanchang, 330013, China 3School of civil engineering e, East China Jiaotong University, Nanchang, 330013, China axjthygxy@sina.com, bycz0791@sina.com, cwsf0791@sina.com Keywords: Landslide; Stability analysis; Anchor pile; Monitoring; Management Abstract.
References [1]Chengzhong Yang,Wenjie Wan.Finite element on high embankment of widened road[J].Applied Mechanics and Materials Vols.63-64(2011)pp770-774 [2]Chengzhong YANG, Xinrong LIU ,Shufang WANG .Nonlinear Finite Element Analysis of High Rockfill Embankment on Steep Slope under Dead Loads[C].The 4th International Symposium on Lifetime Engineering of Civil Infrastructure, 2009,906-911 [3]Chengzhong YANG, Xinrong LIU,Shufang WANG .Seismic Response Analysis of High Embankment [C].
The 4th International Symposium on Lifetime Engineering of Civil Infrastructure, 2009,942-947 [4]Cheng-Zhong YANG.
The 4th International Symposium on Lifetime Engineering of Civil Infrastructure, 2009,961-966 [5]YANG Chengzhong, TAO Xiaomin.HE Guoxian.
[7]Tian Jinggui,Fan Caoyuan.The Principle an d Design of Retaining Piles with Prest ressing Cables.Journal of Chongqing Jiaotong Institute,1998,17(4):59~64

., Ltd. in Shanghai), Low-speed desktop centrifuge (TDL-5-A, Shanghai Anting scientific Equipment Factory), natural clarifying agents ZTC1+1Ⅱ (Zheng tian cheng Technology Co., Ltd.
Table 1 Level of form factors levels A (ml/100ml) B(h) C(℃) D(g/ml) 1 4% B+2% A 4 40 0.1 2 6% B+3% A 8 60 0.2 3 8% B+4% A 12 80 0.5 Acknowledgment The author Aimei Yang was the corresponding author.
Yang, M.

A Prediction Method for Dynamic Performance of Machine Tool Joint Surfaces Yang Yao1,a , Yuan Juntang1,b , Wang Zhenhua1,c and Yang Biao1,d 1School of Mechanical Engineering , Nanjing University of Science and Technology , Nanjing , China 210094 ayy83904812@163.com , bmc106@mail.njust.edu.cn , cniatwzh17@163.com , d693649507@qq.com Keywords: Joint surfaces; Dynamic performance; Virtual material layer element; MPC Abstract.
Tian, D.L Zhu, H.

Tian et.al [5] presented the dimensionless empirical equations and graph expressions of three flexure hinges, and investigated the influences of geometric errors on the performance of the flexure hinges.
[2] Zubir M, Shirinzadeh B, Tian YL.
[3] Tian Y, Shirinzadeh B, Zhang D.
[4] Tian Y, Liu X, Zhang D, Chetwynd DG.
[5] Tian Y, Shirinzadeh B, Zhang D, Zhong Y.