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Study of the bearing capacity of single gravelly pile Xiao-Bin Hana，Dong-Xia Yuanb，Chun-sheng Baoc School of Civil Engineering Hebei University of Engineering, Handan, Hebei Province, 056038, China aHanxiaobin_76@126.com，byuandongxiachina@sina.com，cbaochunsheng@163.com Key words: gravelly pile; bearing capacity; gravity of pile and soil; formula Abstract：There is no a united formula about how to calculate the bearing capacity of a single gravelly pile yet.
Recent years, the engineers had developed several theory or experience formulas through many experiments and much studying.
Introduction Gravel piles have wide applications in various engineering projects.
According to the ultimate balance of piles, the ultimate bearing capacity of the piles can be expressed as: （3） Where is the passive earth pressure factor of the pile ; is the ultimate bearing capacity of the piles; is the angle between the sliding surface and the horizon surface which can be obtained from Eqn.(4): （4） If ，Eqn. (4) can be simplified as: （5） The pile-soil deadweight is not taken into account in above calculations, however, lots of engineering practice has shown that the pile-soil deadweight has significant effect on the bearing capacity of the single pile.
Comparison of the results between different methods The relevant parameters related to this engineering case and gravel piles are taken as the following: kN/m3 kPa kN/m3 The calculated results for different methods are shown on Table 2.

According to an practical construction of an subway station, the foundation excavation three dimensional model was built by FLAC3D from the need of practical engineering.
Engineering Situation Regional Tectonic Features.
Chen (ed.), American Society of Civil Engineers, New-York, 1997, pp. 260-269

Papanicolaou 2,b * 1 Civil Engineer, M.Sc. student, Civil Engineering Department, University of Patras, Greece 2 Assistant Professor, Civil Engineering Department, University of Patras, Greece as.r.maroudas@gmail.com, bkpapanic@upatras.gr Keywords: TRM, bond, masonry, elevated and high temperatures, high heating rate.
For exposure to 300°C, a vertical LPG-fired furnace (with internal dimensions 3 m × 3 m × 1.2 m) for the execution of fire resistance tests was used; the furnace is housed in the Fire Testing Facility of the Civil Engineering Department at the University of Patras.
Trapko, The effect of high temperature on the performance of CFRP and FRCM confined concrete elements, Composites Part B: Engineering 54 (2013) 138-145
Bournas, TRM vs FRP jacketing in shear strengthening of concrete members subjected to high temperatures, Composites Part B: Engineering 106 (2016) 190-205
Composites Part B: Engineering 88 (2016) 220-228

Introduction Steel fiber reinforced concrete, with its excellent physical and mechanical properties, has wide application in the civil engineering.Material model for steel fiber reinforced concrete is needed in solid finite element analysis.
Journal of Engineering Mechanics, 1988 114: 1672–1688
Journal of Engineering Mechanics, 1988 114: 1689–1702
Journal of Engineering Mechanics,1996,122 (3), 245–254
Journal of Engineering Mechanics, (2000),126 (9), 944–953

Failure theory A variety of engineering structures (such as mechanical structures, civil structures, aerospace structures, nuclear structure, electronic components, structure, etc.) and engineering materials (such as metals, ceramics, polymers, geotechnical, composite materials, biological materials, etc.), vandalism (the laws of mechanics, including fracture, injury, fatigue, corrosion, wear and tear) damage mechanics.
In addition, strong loads generated by the direct action of an explosive conventional weapons in the civil air defense structure, the failure process of earthquakes and gas explosions have been carried out in-depth study.
Design and implementation of a 3D simulation system for geological and mining engineering.
International Conference on Information Science and Engineering, 2009.12
[9] Seng D., Liang X.. 3D Visualization Techniques of Complex Virtual Scene in Hydraulic Engineering. 2009 1st International Conference on Information Science and Engineering, 2009.12

The Performance of Recycled Asphalt Materials Ⅰ Jia Liang College of Civil Engineering; Lanzhou University of Technology, P.R.China, 730050 Keywords: abson method, vacuum rotating reclaim, recycled asphalt material performance.
Central South Highway Engineering, 2005, 30(3):162-7164
Journal Materials in Civil Engineering, ASCE, 2006, 18(1):729-739
Highway Engineering, 2007, 32(6):165-168
Journal of Transportation Engineering and Information, 2009, 9(2):81-84

Analyzing Method Based on the Average Power of the Input Energy into Sliding Isolation System Min Sun1,2 ,a*， Yuzhou Sun2,b ，Lei Li3,c (1School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China 2School of Civil Engineering and Architectural, Zhongyuan Univerisity of Technology, Zhengzhou 450007, China) 3Zhongzhou Green City Real Estate Company Ltd of Henan, Zhengzhou, Henan, 450000, China） a149852183@qq.com, byuzhou@163.com, clilei@126.com Keywords: Sliding isolation system; Seismic-isolation; Average input power; Friction coefficient Abstract.
[3] A.Di Egidio,A.Contento.Base isolation of slide-rocking non-symmetric rigid blocks under impulsive and seismic excitations,Engineering Structures 31(11)(2001) 2723-2734
[7] Cenk Alhan,Henri Gavin.A parametric study of linear and non-linear passively damped seismic isolation systems for buildings,Engineering Structures (26) (2004) 485-497
[9] F.Khoshnoudian,A.Hemmati.Seismic Response of Base-isolated Structures using DCFP Bearings with Tri-Linear and Bi-Linear Behaviours,Procedia Engineering (14) (2011) 3027-3035
[10] Gong Mao-sheng,Xie Li-li,Zhang Wen-bo.Attenuation of input energy of strong ground motion,Earthquake Engineering and Engineering Vibration 23(3)(2003)15-24.

Seismic Performance of a Reinforced Lightweight Aggregate Concrete Frame Congqi Fang 1, a , Meiying Yi 2, b 1 Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China 2 Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China a cqfang@sjtu.edu.cn, b yimeiying@yahoo.com.cn Keywords: Reinforced Lightweight aggregate concrete, Frame, Seismic performance.
Introduction The performance-based earthquake engineering has been greatly advanced through fundamental and applied research [1-4].
Bertero: Chapter 9: Performance Based Earthquake Engineering (Earthquake Engineering: From Engineering Seismology to Performance-Based Engineering, CRC Press, Florida 2004)
Lee: Evaluation of the seismic performance of a three-story ordinary moment-resisting concrete frame, Earthquake Engineering and Structural Dynamics, v 33, n 6, May, 2004, p 669-685
Nishiyama: Seismic performance and stress transferring mechanism of through-column-type joints for composite reinforced concrete and steel frames, Journal of Structural Engineering, v 130, n 2, February, 2004, Composite and Hybrid Structures, p 352-360

Numerical Stress Analysis of the Biaxial Tension-Compression Wedge-Splitting Test in Vicinity of the Crack Tip SEITL Stanislav1,3,a*, MIARKA Petr1,3,b, MERTA Ildikó2,c and KERŠNER Zbyněk3,d 1Institute of Physics of Materials, Academy of Science of the Czech Republic, Žižkova 22, 602 00 Brno, Czech Republic 2Technical University Wien, Faculty of Civil Engineering, Research Center of Building Materials, Material Technology, and Fire Safety Science, Adolf-Blamauer-Gasse 1-3, 1030 Vienna, Austria 3Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno 602 00, Czech Republic a*seitl@ipm.cz, bpetr.miarka@vut.cz, cildiko.merta@tuwien.ac.at, dkersner.z@fce.vutbr.cz Keywords: Wedge-splitting test, biaxial tension-compression, fracture mechanics, numerical analysis, constraint, T-stress.
Stang, Wedge splitting test for a steel-concrete interface, Engineering Fracture Mechanics, 72, (2005), 2565–2583 [4] S.
Knésl, Sensitivity of fatigue crack growth data to specimen geometry, Key Engineering Materials, 385-387, (2008), 557–560 [7] H.N.
Veselý, Wedge splitting test of foam concrete specimens: Calibration curves, Key Engineering Materials, 627, (2015), 281–284 [11] V.
Rock mechanics and rock engineering, 46 (2), (2013), 269–287 [15] S.

Control of Artificial Recharge on Foundation Pit Deformation due to Dewatering Hua Yuan1, a, Yan Hong2, b 1School of Civil Engineering and Architecture, Henan University, Kaifeng, Henan, 475004, China 2Henan Engineering Consulting Center, Zhengzhou, Henan, 450000, China ayuanhuazzl@163.com, bhongyan1036@126.com Keywords: Artificial recharge, Foundation pit, Deformation control, Protection, Dewatering, Prevention measure, Management measure.
Introduction With the large-scale construction of urban infrastructure, engineering dewatering has been widely used in foundation excavation; meanwhile the engineering accidents caused by dewatering such as foundation pit collapse, surrounding building cracks, underground pipeline rupture are increasing.
As to the specific options, we should combine the project cost, schedule and safety, then choose the best option according to the characteristics of the engineering
Some are in order to increase the groundwater resources and others are used to improve water quality; however, artificial recharge in engineering is mainly to stabilize and raise local regional groundwater level, preventing the continued decline of regional water level[4-5].
Gong: China Civil Engineering Journal Vol. 34 (2) (2001), p.74, In Chinese