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Durability Testing of the Existing Reinforced Concrete Structures Han Jianqiang1, a, Dong Pengcheng1, Zhang Yanrong2 1 Earthquake engineering research center of Hebei Province, Civil engineering of Hebei United University, Tangshang, China 063009 2 Tangshan City Construction Engineering Quality Supervision Station, Tangshang, China 063000 aE-mail: tshjq@139.com Keywords: durability, both structure and reinforcement, testing, alteration, evaluation Abstract: The ability to structure durability refers to the concrete structure in the natural environment, the role of the environment and material internal factors in the design requirements of the target period do not need to spend a lot of money reinforcement processing to maintain its safety, function and appearance requirements. .
Core drilling method and rebound method used in combination , on the one hand , you can use the rebound method on the characteristics of engineering structures do not produce injury , a lot of testing of the components to determine the homogeneity .
Acknowledgements The project is supported by Earthquake engineering research center of Hebei Province and the national natural science foundation of China (Project approval No.: 51208171).
[3] State Construction Engineering Quality Supervision and Inspection Center : Concrete NDT technology, China Building Material Industry Press , 1996

A Case Study on Pit Failure Risk of Deep Diaphragm Wall Shilun Feng 1, a, Qingqing Guo 1, b and Yonghong Wu 2, c 1Institute of Civil Engineering, Tianjin University, Tianjin 300072, China 2 Tianjin Institute of Geotechnical Investigation and Surveying, Tianjin 300191, China ashilunfeng@126.com, bqingwind@126.com, c13902164874@126.com Keywords: foundation pit, cracks, frequent inspection, risk Abstract.
The deep excavation work is a wide-ranging and integrated engineering process.
Engineering Background The deep foundation pit engineering was located at the business center in HePing district, TianJin.
Through the field investigation by the Geological Survey Department, the engineering site is generally flat and the soil conditions at the engineering site are shown as Table 1.

A Bidirectional B-Spline QR Method for the Analysis of Reinforced Concrete Shear-Wall with Opening Shuangbei Li1,2,a, Qingguo Liang1,b and Duyi Mo3,c 1School of Civil Engineering, Guangxi University, Nanning 530004, China; 2The Key Laboratory of Disaster Prevention and Structural Safety of the Education Ministry, Guangxi University; 3NHY Architectural Engineering Design Company LTD alsbwh90@163.com, blxtx100@163.com, cmdywinner@163.com Keywords: Bidirectional B-spline QR method; Spline basis function; Shear-wall with opening; Bearing capacity Abstract: In this paper, based on the bidirectional B-spline QR method (BB-sQRM), the mechanical properties of the shear-wall with opening were studied.
[2] WANG MengFu, ZHOU XiYuan, HUANG LiZhong: Earthquake engineering and engineering vibration, Vol. 25 (2005), P. 47-54
[5] Norio Inoue;Kejian Yang;Akenori Shibata: EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS, Vol. 12 (1998), P. 967-986
[8] LIANG HanJi, QIN Rong, LI XiuMei: Engineering mechanics, Vol. 26 (2009), P. 74-79, in Chinese

Film Formation Property of Mineral Particles as Grease Lubricant Additives at Different Friction States Wengang Chen1, a, Yuzhou Gao2, b, Haijun Wang1, c and Zefei Tan1, d 1Southwest Forestry University(College of Communication, Machinery and Civil Engineering Kunming 650224, China) 2Dalian Maritime University ( Department of Materials Science and Engineering Dalian 116026, China) achenwengang999@163.com, bzhouyugao@yahoo.com.cn, cab0871@163.com, dtanzefei@126.com Keywords: Mineral Powder Additive; Sliding Friction; Rolling-Sliding Friction; Self-Repairing Film.
Introduction In the past decades, the additives in lubricants has been widely applied in lubrication engineering in order to reduce the friction coefficient, improve the anti-wear ability and mend the worn surface.
Zhang, F. zhao: Lubrication Engineering, (12)(2007), p. 53-55.
Yang, et al: Lubrication Engineering, (6)(2007), p. 46-49.
Zhang, et al: Key Engineering Materials, 373-374 (2008), p. 572-575 [9] W.

Numerical investigation of impact of pile space on flow around two vertical cylindrical piles Jianwen Qi1, a, Cuiping Kuang1,b Jie Gu2,c and Jing Huang 1,d 1Department of Hydraulic Engineering, School of Civil Engineering, Tongji University, Shanghai, 200092, China 2 College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China a673566683@qq.com, bcpkuang@tongji.edu.cn, cjgu@shou.edu.cn, d1jhuang@tongji.edu.cn Keywords: a three-dimensional hydrodynamic model; three-dimensional flow; horseshoe vortex; lee wake vortex; vertical cylindrical pile Abstract.
“Controlling Mechanism of Local Scouring”, Journal of Hydraulic Engineering, ASCE , 1990, 116(10):1197—1214
“Flow around Bridge Piers”, Journal of Hydraulic Engineering, ASCE , 1998, 124(3):288—301
Port & Waterway Engineering, 2006, 387(4):23-27.
Journal of Hydraulic Engineering, ASCE, 1974, 113, 615-629

Multi-objective dynamic decision of CIA for cascade hydropower development Shanshan Zhong 1,2,a, Feilian Zhang 1,band Hualong Wang 3,c 1School of Civil Engineering and Architecture, Central South University, P.R.China 2School of Hydraulic Engineering, Changsha University of Science and Technology, P.R.China 3Mid-south Design and Research Institute, CHECC, P.R.China aemail:zsszhong@163.com;bemail:zfl@mail.csu.edu.cn;cemail:hwalongwong@sohu.com Key words: dynamic multi-objective decision, assessment, hydropower cascade development, CIA (cumulative impacts assessment) Abstract: Considering the characteristics of hydropower cascade development project’s cumulative environment impacts, such as scope broad, many indexes and so on, a new evaluation method- dynamic multi-objective decision method is adopted.
Journal of hydraulic engineering, 2007,10:577-581
Journal of Wuhan university of hydro-electricity engineering. 2000,33(1):70-73
System engineering, 1993,11(1):61-65
System engineering, 2001,19(2):78-83

Water Environment Monitoring System Based on Data extraction - Transmission and Processing Yicheng Gong1,a, Yongxiang Zhang 1,b , Fei Ding 1,c , Weichun Gao 1,d and Yifan Wang 1,e 1 Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China agongyc@emails.bjut.edu.cn, bYxzhang@bjut.edu.cn, cdingfei98@sina.com, dgaoweichun_01@126.com,ewyf04151@163.com Keywords: Water environment monitoring system, groundwater, FameView Abstract.
Through communication engineering, information engineering and automatic control technology, to carry out the experiment between the monitoring probe and data transmission, and to finish the docking experiment with computer.
Through application of water environment monitoring, reconfirmed the main conclusion and result of the initial research, and accumulated the engineering experience which was used in application.
Acknowledgments This study was supported by The key technology and engineering demonstration of security of water quality in the main canal of South-to-north water transfer project ( 2009ZX07212-003 ), The key technology research of water source area of South-to-North water transfer project and warning of water quality monitoring and demonstration project ( 2011BAC12B00 ).

Evaluation Analysis on the Traffic Safety Related to the Road Alignment Based on the Operation Speed He Gao1, a, Shaowei Yuan2, b 1 College of Civil Engineering, Northeast Forestry University, Harbin, 150040, China amrgaohe@163.com, b624658847@qq.com Keywords: traffic safety; operation speed; linear index Abstract.
This paper studies the traffic safety of the road alignment based on the idea of operation speed, evaluates the quality of the road alignment by the operation speed, make further improvement for the road alignment indexes, and test the rationality of this idea through engineering examples.
Case Analysis of Domestic Engineering Using the idea about operation speed to test analysis on the traffic safety of a domestic highway.

Reliability Study on Bolt Support Systems of Coal Roadway under Group Failure Modes Based on Maximal Entropy Principle Feng Wang1,a, Tiejun Cui2,3,b 1School of Civil & safety Engineering, Dalian Jiaotong University, Dalian Liaoning 116028 China 2Tunnel & Underground Structure Engineering Center, Dalian Jiaotong University, Dalian Liaoning 116028 China 3School of safety Engineering, Liaoning Technical university Fuxin Liaoning 123000 China adlfree@163.com,bctj.159@163.com Key words: Coal roadway bolt structure; The maximum entropy principle; Group failure mode; Monte Carlo simulation method; reliability Abstract.
References [1] He M C, Su Y H and Sun X M: China Journal of Rock Mechanics and Engineering Vol. 21 (12) (2002), p. 1810-1814.
(In Chinese) [2] Wang W J and Hou Ch J: Chinese Journal of Rock Mechanics and Engineering Vol. 20(6) (2001), p. 813~816.
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Experimental Study on Compaction and Strength Characteristic of Wetland Fine Grained Soil Hongxia Yang School of Civil Engineering, Shandong Jiaotong University, Jinan, Shandong, 250023, China yanghongxia0531@163.com Keywords: Wetland, Fine grained soil, Compaction curve, Strength.
Test according to the “Test Methods of Soils Highway Engineering” (JTG the E40-2007) [4].
[4] Test Methods of Soils Highway Engineering.
[7] Faure,A.G.and Da Mata,J.D.V.ASCE Journal of Geotechnical Engineering,1994,20,pp. 46-59
[8] Holtz,R.D.and Kovacs,W.D.An Introduction to Geotechnical Engineering,Prentice Hall,Eagal wood Cliffs,New Jersey.1981