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Effects of Shallow Gas on Diaphragm Wall Trenching Construction of Hangzhou Metro Yong WANG a, Lingwei KONG b and Aiguo GUO c State Key Laboratory and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071, China awang831yong@163.com, blwkong@whrsm.ac.cn, c guoaiguo1969@126.com Key words: shallow gas, metro engineering, diaphragm wall, trenching construction Abstract.
Generally, the reserve of gas is not large, but widely distributed with shallow depth; the contained gas pressure is high and main gas component is methane; shallow gas is colorless, odorless, flammable and explosive, which are bound to give serious impacts on construction of civil engineering in the region.
Therefore, it is necessary to study the impact of shallow gas on trenching construction of diaphragm wall, in order to provide references for the project in selecting appropriate mud weight to ensure the engineering quality.
Journal of Disaster Prevention and Mitigation Engineering, Vol. 24(2004), p. 375-381
Proc. of the 16th International Conference on Soil Mechanics and Geotechnical Engineering/Millpress Publising.

Mech. and Materials Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9 3Ingersoll Rand Engineering Technology Center, 11F Raffles City, 268 Central XiZang Rd.
The present research uses an available implementation of this method, known as MACEC, an acronym of Modal Analysis on Civil Engineering Constructions, described by Peeters et al. [6].
Leuven for civil engineering applications, and has been tested for medium scale structures previously [2].
References [1] Centre for Integrated RF Engineering (CIRFE) at the University of Waterloo, Waterloo, Ontario, Canada.
Engineering Vibration.

., College of Civil & Architecture, Three Gorges University, Yichang 443002, China E-mail: l.r.p@163.com Key words: nonlinear settlement; modified secant modulus (MSM); normalization curves; creep exponent Abstract: A new technique namely modified secant modulus method（MSMM）considering time factor for nonlinear settlement computation of foundation is proposed.
The construction practice indicates that most engineering accidents were caused by too large or uneven deformation of foundation, the precision of soil deformation of high speed railway and underground engineering can reach to centimeter even millimeter grade, and the success of high-speed railway lies in the settlement, all these modern engineering puts forward a higher request on settlement computations.
[2] Jean-Louis Briaud, Robert Gibbens，Behavior of Five Large Spread Footings in Sand[J], Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 1999(9): 787-796
-L., Predicted and Measured Behavior of Five Spread Footings on Sand: Proceedings of a Prediction Symposium[M], Amer Society of Civil Engineers, Geotechnical Special Publication, No 41,1994
[4] Jiao Wuyi，New Parameters of Foundation Deformation——the Principle and Application of Chord Modulus[J], Hydrogeology and Engineering Geology, 1982(1): 30-33.

Estimation of Air Pollutant Emissions in “Turbo” and in Conventional Roundabouts Ferdinando Corriere1, a, Gianfranco Rizzo1,b, Marco Guerrieri2,c 1Faculty of Engineering, University of Palermo, Italy 2 Faculty of Engineering and Architecture, University of Enna “Kore”, Italy agianfranco.rizzo@unipa.it, bferdinando.corriere@unipa.it, cmarco.guerrieri@tin.it Keywords: Turbo roundabouts, Conventional roundabouts, Capacity, Delay, Pollutant emissions.
Journal of transportation engineering - ASCE, v. 130, n. 5, p. 602-609.
Journal of Transportation Engineering – ASCE, 136(4), pp. 316–322.
Archivers of Civil Engineering, ISSN: 1230-2945, LX, 2, 2013
Archivers of Civil Engineering, ISSN: 1230-2945, LIX, 1, 2013, pp.3-19

Research on static mechanical properties of interface between structure and gravel underlayer Rongdi Liu1, a, Jianguo Zheng2,b and Zhiyuan Li3,c 1Department of Civil Engineering, Xi'an University of Architecture&Technology, China 2China JK Institute of Engineering Investigation and Design, China 3Zhengzhou Light Metals Research Institute Of CHALCO, China a15720084@qq.com, blrd1986@sohu.com, c285339752@qq.com Keywords: gravel underlayer, coarse aggregate, simple shear test, interaction, interface, mechanical properties.
The most obvious feature of this coarse aggregate of sand gravel is its large particle size, and the engineering properties need to be measured by large equipment.
Chinese Journal of Geotechnical Engineering, 2004,26 (1): 21-25
Chinese Journal of Geotechnical Engineering, 2003,25(2):149-153
Experimental study on mechanical characteristics of soil-structure interface[D] Chinese Journal of Geotechnical Engineering, 2001,23(4).

Tang 3 1 Department of Geosciences, State University of New York at Stony Brook, Stony Brook, NY 11794-2100, USA 2 Civil and Structural Engineering Department, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China 3 Center for Rockburst and Induced Seismicity Research, Civil and Resources Engineering School, Northeastern University, Shenyang, 110006, P.R.China Keywords: Numerical simulation, Micromechanics, Failure process, Yuen Long marble ABSTRACT A major challenge in rock mechanics has been the realistic modeling that can reveal the progressive accumulation of damage and shear localization in a brittle rock under compression.
INTRODUCTION Since von Karman conducted his seminal study in 1911, brittle fracture of rock has been extensively investigated in geotechnical engineering and geophysical laboratories.
The experimental data can be interpreted using empirical theories (such as the Mohr-Coulomb and Hoek-Brown criteria) that provide much of the failure analyses of faulting in engineering, mining and seismological applications [2, 3].
Brown, Underground Excavation Engineering, Institute of Mining and Metallurgy, London (1980). 4.
Xu, Engineering Geology, 49 (1998) p. 207 6.

Study on inhomogeneous collision effect of curved girder bridge under seismic action Xingjun QI1, a, Yonggang Shen2,b 1 School of Civil Engineering, Shandong Jianzhu University, Shandong Jinan 250101, China 2 Department of Civil Engineering, Zhejiang University, Zhejiang Hangzhou 310027, China aqxj123@163.com, bsygdesign@zju.edu.cn Keywords: Curved girder bridge; Seismic collision effect; Explicit dynamic contact algorithm; Inhomogeneous distribution Abstract: For the irregular rotational displacement of curved girder bridge under seismic action there are some limits to calculate collision effect with pounding element approach.
World Earthquake Engineering, Vol. 26, issue 3, pp. 22-28, 2010.
Journal of Structural Engineering, Vol. 128, issue 7, pp. 860-869, 2002
Earthquake Resistant Engineering and Retrofitting, Vol. 30, issue 5, pp. 48-54, 2008.
Engineering Blasting, Vol. 14, issue 1, pp. 12-15, 2008.

Elasto-plastic Properties of Panel Zones and Effects on Story Drift of Steel Frames Bing Guo1, a, Xiaotong Peng2, b 1 College of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China 2 College of Civil Engineering, University of Jinan, Jinan 250022, China a email: sdgb123@163.com, b email: pengxito@163.com Keywords: panel zone, strength, stiffness, story drift, steel frames.
The above formula is very simple with only two parameters, volume of PZs and strength of the steel, and the accuracy can absolutely satisfy engineering design.
Popov: Journal of Structural Engineering, ASCE, Vol. 116 (1990), p. 3285 [5] B.
Liu: Journal of Structural Engineering, ASCE, Vol. 132 (2006), p. 1352 [7] E.
Chang: Engineering Structures, Vol. 20 (1998), p. 1030

Form-Finding Analysis of Tensioned Fabric Structures using Nonlinear Analysis Method Hooi Min YEE1, a , Kok Keong CHOONG1,b and Jae-Yeol KIM2,c 1School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia 2Department of Architectural Engineering, Hyupsung University, Hwasung-shi, Korea ahmyee.wd07@student.usm.my, bcekkc@eng.usm.my, cjjaerinim@empas.com Keywords: Form-Finding, Nonlinear analysis method, Tensioned Fabric Structures, Minimal Surfaces.
Shan: Structural Engineering and Mechanics.
Tibert: Computational Analysis of Cable Roof Structures (Licentiate Thesis, Deparment of Structural Engineering, Royal Institue of Technology 1999)
(Undergraduate thesis, School of Civil Engineering, Universiti Sains Malaysia 2005)

When choosing renewable energy sources the major challenge is conferred to hydraulic and wind power engineering.
Jovanovic, Education in the field of energy efficiency in Serbia - Survey results and analysis, Journal of Applied Engineering Science, Vol.11 (1), (2013), pp. 15-22 [6] E.
Vatin, Reconstruction of administrative buildings of the 70s: the possibility of energy modernization, Journal of Applied Engineering Science, Vol. 12, Vol. 1, (2014), pp 37-44 [22] D.V.
Sotnikov, Mathematical and stereographic analysis of intensity of solar radiation and openings shading for the building SLE calculation, Magazine of civil engineering, Vol.4 (2010), pp. 21-30
Korniyenko, Settlement and experimental control of energy saving for buildings, Magazine of Civil Engineering, Vol. 8 (2013). pp. 24–30