Search results

Seepage-stress Analysis on Oilfield Based on Numerical Simulation LIU Jun1, a, WANG Xingfeng1,b, CHANG Xueping2,c 1 School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu 610500, China 2 School of Mechanic Engineering, Southwest Petroleum University, Chengdu 610500, China aliujun-888888@163.com, bwangxf@163.com, cxuepingch0952@sina.com Keywords: Seepage-stress coupling.
Casing damages can be caused by many factors, for example, geological factors, engineering technology factors and corrosion medium factors.

Effect of Cement type and Air-entraining agent on Microbially Induced Carbonate Precipitation in Cement Paste YUAN Xiaolu 1, a, ZHOU Shihua 2, b, HU Weimin 3, c, TAN Senyao4, d, PAN Deng4, e 1College of Civil Engineering and Architecture, Three Gorges University, Yichang 443002, China; 2Changjiang River Scientific Research Institute, Wuhan 430010, China; 3College of Chemistry and Life Sciences, Three Gorges University, Yichang 443002, China; 4College of Science and Technology, Three Gorges University, Yichang 443002, China aemail: yuanxiaolu1980@aliyun.com; bemail: zhoush@mail.crsri.cn; cemail: dna1953@126.com; demail: 1185718104@qq.com; eemail: 895823444@qq.com Key words: cement type; air-entraining agent; carbonate precipitation; microorganism; cement paste Abstract: The effect of cement type and the air-entraining agent on microbially induced carbonate precipitation in cement paste has been studied.
Ecological Engineering, 2010, 36: 118-136
Ecological Engineering, 2010, 36: 99-111

Normally consolidated Subgrade limit bearing capacity calculation using slip line method Chen Ming1, a, *Zhou Taiquan1,b 1College of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China amy.cm1993@gmail.com,bzhoutaiquan@163.com Keywords: slip line method; ultimate bearing capacity of foundation; Terzaghi ultimate bearing capacity of foundation.
Therefore, determining the limit bearing capacity of foundation is an urgent problem to engineering practice to solve.
Martin Department of Engineering Science University of Oxford.

Study of Stiffness Calculation Method on Reinforced Concrete Beam Strengthened with CFRP Xue Han 1, a, Zheng Liu2, b, Xin Xu3,c and Chao Ge3,c Faculty of Civil and Architectural Engineering, Kunming University of Science and Technology Kunming, Yunnan, 650500, China a442046768@qq.com, bkmliuzheng@yahoo.com.cn, c197327216@qq.com, c 554311285@qq.com Keywords: reinforced concrete beam, CFRP, strengthen, short-term stiffness Abstract: The beam member should not only meet the requirement of carrying capacity but also has the ability to resist deformation.
Introduction With the improvement of the reinforcement theory, the technology of reinforced concrete structure strengthened with CFRP has been widely used in practical engineering.
Both of them can meet the engineering accuracy requirements, which could be used for strengthening design.

Comparison of Pavement Response Analysis between a 18-Axles Truck and Standard Thai Truck Bhawat Chaichannawatik1, a *, Tawatchai Laosirihongthong 2, b, Tassana Boonyoo 2, c and Suniti Suparp1, d 1Department of Civil Engineering, Faculty of Engineering Kasem Bundit University, Bangkok, Thailand 2Traffic and Transport Development and Research Center (TDRC) King Mongkut’s University of Technology Thonburi, Bangkok, Thailand abhawat.cha@kbu.ac.th, btawatchai.lao@kmutt.ac.th, ctassana.boo@kmutt.ac.th, dsuniti.suparp@yahoo.com Keywords: Overweight truck, pavement response analysis, Loadings of Thailand.
Joyklad, A Study on Simple Beam Bridge Responses Due to Thai Truck Loads. 4th International Science, Social Science, Engineering and Energy Conference, Petchaburi, Thailand, (2012)

Collapse Simulation of Bricklaying Arch Based on 3D Distinct Element Ou Yihong1, Qian Haibing1, Wu Ying2, Wangdong1, Du Yang1, Jiang Xingsheng1 1Logistic Engineering University of PLA, Chongqing, China 2 the science and technology institute Chongqing, Chongqing, China e-mail: oyh1219@163.com Keywords: Deformable distinct element; Numerical simulation; Bricklaying arch Abstract: In order to numerical simulate the transition process from continua to discontinua and even to structural collapse,the collapse of bricklaying arch built by two-layer stone material is analyzed based on the deformable distinct element method(DEM)．The simulation results are consistent with that of experiment.
The research results shows that not only the load-displacement response of the arch under uniform fracture energy can be appropriately predicted through the method, but also the collapse behavior when the system partially or completely reaches failure can also be simulated Introduction Since distinct element method was created by Cundall in the early 1970s, it has played an important role in the field of geotechnical engineering.
References [1] Liu Da-ren, Hou Xiang-lin, Gao Yue-yang, Numerical Analysis and Imitation of Response on Construction Flaws Damage of Simply Supported Beam, Journal of Shenyang Architectural and Civil Engineering Institute 2006.3, pp188-189

Dynamic Antiplane Behavior for a Quarter Infinite Piezoelectric Medium with a Subsurface Circular Inclusion Tianshu Song1,a, Dong Li1,b and Tamman Merhej1,c 1 School of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, China asongts@126.com, blidong242@163.com, cmerhej78@126.com Keywords: quarter infinite piezoelectric medium; subsurface circular inclusion; dynamic antiplane behavior; dynamic stress concentration factor; electric field intensity concentration factor Abstract.
J. of Engineering Science, 48: 209-222(2010)

Effect of Metakaolin-based Modifier on the Permeability of Concrete Structure in the Marine Environment Juntao Maa, Liang Yanb, Yuping Tongc and Huixian Wangd School of Civil Engineering and Communication, North China Institute of Resources and Electric Power, Zhengzhou 450011, China amjtflight@163.com, byan2000liang@163.com, ctongyuping@ncwu.edu.cn, d44456869@qq.com Keywords: metakaolin; fly ash; penetration resistance; pore structure.
Other materials include Portland cement, fly ash and slag powder, from Tangshan, and polycarboxylate-type superplasticizer (SP) supplied by the Wuhan Harbour Engineering Design and Research Co., Ltd.
The use of high reactivity metakaolin in high performance concrete, 1st Engineering Foundation Conference on High Strength Concrete, Hawaii: 517-530

A Combined Power Demand Forecasting Model With Variable Weight Zhigang Wang1, a, Qingjie Zhou 2, b, and Xinghua Zhou 2, c 1College of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China 2Beijing Join Bright Digital Power Technology CO.
Proceedings of the Chinese Society for Electrical Engineering, Vol.30,No. 16,pp. 53-59, 2010

Comparison of Natural Frequencies of Hollow Core Slabs JENDZELOVSKY Norbert1, a and VRABLOVA Kristina1,b* 1Slovak University of Technology, Faculty of Civil Engineering, Radlinskeho 11, 813 68 Bratislava, Slovak Republic anorbert.jendzelovsky@stuba.sk, bkristina.vrablova@stuba.sk Keywords: natural frequency, FEM, simplified methods, hollow core slab Abstract.
Ammann, Vibration in structures: Induced by man and machines, International Association for Bridge and Structural Engineering, 1987
[7] Cobiax Engineering Manual Issue, 2010.