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Plugging performance optimization tests of grouting material for sudden water inflow of underground engineering construction Liping Li 1, a, Shucai Li 1,b , Jinsheng Cui 2,c and Zhao Li 2,d 1, Geotechnical and Structural Engineering Research Center, Shandong University, No.17923,Jingshi Rd., Jinan, Shandong Province, P.R.
China 2, Jining Hock Ming Engineering & Equipment Co.
However, they aren’t fit for stabilization and water-seal works of deep underground engineering, especially for the shutoff of hydrodynamic water of high pressure.
Test design In the test, six hundreds of test block has been made, such as cement block and chemical test block, in order to get enough test data, and all the tests has been carried out at the school of civil engineering of Shandong university.
Li: Study on catastrophe evolution mechanism of karts water inrush and its engineering application of high risk karts tunnel, Ph.D.

The Status of Biological Research and Prospect Analysis of Asphalt Tang Wei Hunan Yiyang to Loudi Expressway Construction Development Company Ltd 290857906@qq.com Keywords: road engineering; asphalt; bio-oil; bio-asphalt Abstract.
This paper researches on biological asphalt collect summary summarizes the current research status of biological asphalt, aggregate its application in road engineering performance, analyze their development, application prospects.
Foreign research status Overseas for the application of the biological material in road engineering are mainly three methods, namely direct replacement (100%), petroleum asphalt diluent (25% ~ 75%) and asphalt modifier (< 10%).Yet, while most current biological binder has some plasticity and caking property, but its bearing capacity, general faults mainly embodied in the high temperature anti-rutting performance is insufficient, therefore, directly replace petroleum asphalt in road engineering is difficult to achieve, generally as diluent and petroleum asphalt modifier, or through the modification methods to improve the flexibility of asphalt, toughness and sticky to use.
Biological tar modified asphalt production methods: [P]. 2010 [2] Wen H,Bhusal S,Wen B.A laboratory evaluation of waste cooking oil-based bioasphalt as an alternative binder for hot mix asphalt[J], J Mater Civil Eng,2013,25(10):1432

Physical and Mechanical Properties Evaluation of Corncob and Sawdust Cement Bonded Ceiling Boards Atoyebi Olumoyewa Dotun1a*, Odeyemi Samson Olalekan2b, Azeez Lateef Olugbenga3c, Modupe Abayomi Emmanuel1d 1Civil Engineering Department, Landmark University, Omu-Aran, Kwara State, Nigeria 2Department of Civil Engineering, Kwara State University, Malete, Kwara State, Nigeria 3Department of Civil Engineering, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria aatoyebi.olumoyewa@lmu.edu.ng, bsamson.odeyemi@kwasu.edu.ng, clastruct@gmail.com, cmodupe.abayomi@lmu.edu.ng .
Ogbeifun, “Splitting Tensile Strength Assessment of Lightweight Foamed Concrete Reinforced with Waste Tyre Steel Fiber,” International Journal of Civil Engineering and Technology, vol. 9, no. 9, pp. 1129-1137, 2018
Journal of Nigerian Society of Engineers, vol. 49, p. 74–81, 2015
[33] Olorunnisola, “Strength and water absorption characteristics of cement bonded particleboard produced from coconut husk.,” Journal of Civil Engineering Research and Practices, vol. 3, no. 1, p. 41–49, 2006.

The Truss Structural Optimization Design Based on Improved Hybrid Genetic Algorithm Fengguo Jiang1,2,a , Zhenqing Wang1 1 School of Civil Engineering, Harbin Engineering University, Harbin,Heilongjiang 150001, China 2 School of Civil Engineering, Heilongjiang Institute of Science & Technology, Harbin, Heilongjiang, 150027, China ajiangfg123@yahoo.com.cn Keywords: genetic algorithm; gradient algorithm; hybrid genetic algorithm; structural optimization.
Traditional gradient algorithm combined with genetic algorithms in this paper, the strong local search ability of gradient algorithm be utilized to improve the weak ability of local optimums of genetic algorithms, a new hybrid genetic algorithm be given, which make the premature phenomena be overcome, and the convergence performance be improved greatly, so the application effectiveness of genetic algorithm be improved in practical engineering.
Ann Arber,[M]:University of Michigan press,1975:45-62P [2] Jenkins W N.Structural optimization with the genetic algorithm[J].The Structural Engineer,1991,69(24):418-422P [3] D E Godberg, Genetic Algorithms in Search, Optimization and Machine Learning, Reading [M]MA: Addison-Wesley,1989:36-52P [4] Ming Zhou, Shudong Sun.

Experimental research on the properties of modified MPC Bing Chen1, a, Xinyuan Yang1,b and Ning Liu1,c 1Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai, China, 200240 ahntchen@sjtu.edu.cn, b edisonyang@sjtu.edu.cn, cnliush@sjtu.edu.cn Keywords: Magnesium phosphate cement(MPC), fly ash, silica fume, re-dispersible latex powder, strength, setting time Abstract.
However, according to the references of related researches, it is found that some problems still exist in the application of MPC in engineering: (1) the setting time is too shortto be cast in construction; (2) the cost is relatively high which is almost 2 or 3 times of the cost of Portland cement; (3) poor resistance to water.
When the content fly ash reached 60%, the setting time is 25 min, sufficiently meeting the requirement of engineering.
This made it a proper way to reduce the cost of MPC and would be especially meaningful for the promotion of MPC in the used of engineering.
Acknowledgements Project supported by Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Ministry of Education, Grant No.

Selection Research on Materials of Heat-resistant Concrete based on Range Theory Xingwei Xu1,a, Ji Yao2,b 1Department of Civil Engineering in Kunming Metallurgy College, Kunming Yunnan, 650033; 2Faculty of Civil Engineering and Mechanics in Kunming University of Science and Technology, Kunming Yunnan, 650500 a 276308990@qq.com, b105434620@qq.com Keywords: heat-resistant concrete; orthogonal experiment; heat-resistant aggregate; mix ratio Abstract.
Preface A roasting projects in an engineering required about C20 ~ C351200m3concrete of heat-resistant temperature of 800 ℃, considering that when roaster was used, uneven heating phenomenon would occur, the local temperature close to 850 ℃, so the design technical specifications for this engineering concrete was [1]: normal limit heat temperature was 800 ℃, the temperature limit of local mutation was less than 900 ℃; after burning the residual strength level should meet the design requirements; the slump was 5~12cm; volume stability was good; In ensuring the design strength of the engineering and construction requirements, a more affordable mix ratio should be adopted.

Suntharavadivel c School of Engineering & Built Environment, Central Queensland University, Australia a reagan.case@cqumail.com, b k.duan@cqu.edu.au, c t.suntharavadivel@cqu.edu.au Keywords: Fly ash, concrete, cement, replacement, compressive strength.
In line with the increasing interests in recycled/sustainable materials worldwide and the CQU cementitious materials research program, considerable studies on fly ash influences on concrete properties have been carried out at School of Engineering and Built Environment, Central Queensland University [11, 12].
Acknowledgements The authors wish to acknowledge Mr Travis Frame and Ms Paula Ronayne of the CQU Rockhampton Campus Civil Laboratory for their contributions to the experimental work presented in the paper.
The authors would also like to express their appreciations to Cement Australia, in particular Engineering Manager Rob Druit and Area Manager Jeff Zawilla for their help in supplying Fly Ash material and associated material data.
Bentur: The Science and Technology of Civil Engineering Materials (Prentice Hall, Upper Saddle River, New Jersey 1998)

Experimental Study On Seismic Behavior of High Strength Steel Composite K-Type Eccentrically Braced Frames Liusheng Duan1, a, Mingzhou Su1, b and Hui Li2, c 1School of civil engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China 2Chengdu Jizhun Fangzhong Architectural Design Associates, Chendu 610017, China aduanliusheng@126.com, bsumingzhou@163.com Keywords: high strength steel, K-type eccentrically braced frame, monotonic tests, cyclic tests, seismic behavior.
Popov．Characteristics of Eccentrically Braced Frames[J]．Journal of Structural Engineering，1984，110(2)，340-353
Gu．Nonlinear finite element analysis for eccentrically braced steel frames under cyclic load[J]．China Civil Engineering Journal，2005，38(2)：27-31．
Dinu．Dual high-strength steel eccentrically braced frames with removable links[J]．Earthquake Engineering & Structural Dynamics，2008，37(15)，1703-1720
Buckle．Cyclic Behavior of Shear Links of Various Grades of Plate Steel[J]．Journal of Structural Engineering，2010，136(4)，370-378．

Plastic Hinge Analysis of Seismic Performance of High Bridge Pier Ruihong Gao a, Ruilin Chen b, Sugong Cao c, Zhang Tang d, Xinqiang Xiao e and Hongbo Hu f Department of Civil Engineering, Xiangtan University, China a gaoruihong2003@163.com, b chenruilin8@hotmail.com (corresponding author), c csdxcsg@163.com, d tzhangxtu@163.com, e 522820199@163.com, f 470704103@qq.com Keywords: high bridge pier; the second plastic hinge; ANSYS; seismic performance.
At the same time with the development of society, the domestic in engineering technology has also made certain progress.
Conclusions In this paper, taking the Kunming Slope Railway Bridge for instance, the actual of engineering integration parameters should be simplified and inputted to the ANSYS model.
Xiang, Beam with a single-row pile pier seismic ductility practical method of checking, Journal of Civil Engineering, 2 (1993) 48-56
Yan, Reinforced concrete single column piers experimental study on seismic, Railway Engineering, 5 (2009) 36-39.

Thermodynamic Behaviour of the Solar Updraft Tower: A Parametric Model for System Sizing Patrick Cottam1, a, Philippe Duffour2,b and Paul Fromme3,c 1Centre for Urban Sustainability & Resilience, Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London, WC1E 6BT, United Kingdom. 2Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London, WC1E 6BT, United Kingdom. 3Department of Mechanical Engineering, University College London, Gower Street, London, WC1E 6BT, United Kingdom.
Kröger, Solar chimney power plant performance, Journal of Solar Energy Engineering 128 (2006) 302-311
Kröger, Thermoeconomic optimization of a solar chimney power plant, Journal of Solar Energy Engineering 130 (2008) 021015.1-9