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Spatial Threshold Regression Model thinking time factor and Application in Excavation Displacement Monitoring Qingguang Yang a, Jie Liu b and Jie He c College of Civil Engineering, Hunan University of Technology, China ayqg1210@126.com, bliujie3065@yahoo.com, chjhlhjy@yahoo.com Keywords: excavation; time factor; spatial threshold regression model; displacement monitoring Abstract.
Excavation displacement monitoring is a kind of important measure assuring construction safety of large-scale excavation engineering.How to predict displacement accurately and efficiently in construction period using limited displacement date has become a research hotspots.
Spatial threshold regression model thinking time factor has been build up according change of excavation depth and monitoring time in paper.Predicted value of deep maximal horizontal displacement using the model abolve is very close to monitoring value.Maximal average error is about 12.46% in early days and tend to 5% in later stage.It is a effective predicted method for soil deep maximal horizontal displacement in excavation engineering.
Example and Comparison of Results with a Case Study Describe of Excavation.Depth of GuangZhou international financial center excavation reach 19.3 meter which belongs to large-scale excavation engineering and it is reinforced by composite structure of concret pile and anchor.For condition of engineering geology is very bad to this excavation ,the standard of control the displacement of soil deep horizontal displacement is asked very strictly to assure safety of building around excavation.Four monitoring holes was set up in soil around to measure soil deep horizontal displacement.The results of N1 and N2 holes are taken to study the serviceability of spatial threshold regression model thinking time factor to excavation displacement monitoring.
（2）The method is not limited by time.it can used to predict excavation displacemnt both short period and long period excavation engineering

Mohd Arif 4,d 1,2Department of Civil Engineering, College of Engineering, University Malaysia Pahang, 26300 Gambang, Kuantan, Malaysia 3,4 Faculty of Civil Engineering Technology, University Malaysia Pahang, 26300 Gambang, Kuantan, Malaysia ayouventharan@ump.edu.my*, bkhesava47@gmail.com, crokiah@ump.edu.my, dmdarif@ump.edu.my Keywords: Concrete Debris, Bottom Ash, Conventional Ballast, Aggregate Impact Value, Aggregate Crushing Value, Fouling Index, Hardin’s Breakage Index Abstract.
Proceedings of the Institution of Civil Engineers - Transport, 158(2), 89–95
International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE), 1(September), 0–4
CONSTRUCTION WASTE MANAGEMENT : Malaysian Perspective International Conference on Civil and Environmental Engineering for Sustainability.
Journal of Materials in Civil Engineering, 32(7), 04020169. https://doi.org/10.1061/(asce)mt.1943-5533.0003239 [51] Sweta, K., & Hussaini, S.

Estimation Study on Shear Wave Velocity of Seabed Using GRNN Di Shengjie1, 2 a, Shan Zhigang1,b, Xu Xueyong1,c 1 HydroChina Huadong Engineering Corporation, Hangzhou, Zhejiang 310014, China. 2 Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, China.
adi_sj@ecidi.com; bshan_zg@ecidi.com; cxu_xy@ecidi.com Keywords: prediction method; shear wave velocity; in-situ test; offshore engineering; GRNN.
Therefore, this estimation method is worthy of being recommended in the later engineering practice.
They are used in both basic and applied engineering geology and civil engineering.
In addition, the estimation of GRNN can offer reference to other engineers and researchers.

An new approximate formula for contracted depth in Quadratic parabola shaped channels Fengling Li Department of architecture and civil engineering , Huizhou University , Huizhou, Guangdong, 516007, China mmlflmm@163.com Key word : irrigation channels; quadratic parabola; contracted depth; approximate solution Abstract: On the basis of summarizing the predecessors' research, based on the contracted depth basic equation mathematical transformation of quadratic parabola shaped sections, the interrelation between dimensionless contracted depth and the dimensionless parameter were analyzed, we obtain the approximate formula for contracted depth in Quadratic parabola shaped channels, it is simpler and accurate, It’s maximum relative error are less than 0.12% in the utility range.
Introducing the dimensionless parameters, analyzing the relationship between dimensionless contracted depth and the dimensionless parameters, according to the water and wastewater engineering norms and hydraulic engineering norms, we get calculation formula for contracted depth in quadratic parabola shaped channels Quadratic parabola cross-section contracted depth basic equation [4]： （1） Where：：total head in the contraction section (),：contracted depth (), Q - flow, (m3/s), ：Acceleration of gravity(), - Velocity coefficient, - water sectional area, (m2).
It can satisfy the demand of practical engineering.
A direct calculation method for wader depth in parabolic shaped channel with contracted section[J].Water Resources and Hydropower Engineering, 2008，39 (3):36 37.

Model and Dynamics Analysis of A new oscillator Under Gravity Lin Liang1, Tao Guo1, *, Shiqi Su1 , Bing Bai1 1Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, Kunming 650500 China *guotaoj@126.com Keywords: oscillator equilibrium point chaos Abstract.
Project Overview The science of the nonlinearity studies the methods to demonstrate each patterns in mechanical motion of nonlinear dynamic system and supplies reliable theory and calculation methods to the nonlinear dynamic problem in a series of important engineering, which is a both leading and important subject in academia today.
In scientific engineering, the usual attitude of avoiding to deal with nonlinear problem in the past has already changed.
Scholars and engineers take efforts to analyze the effects of the nonlinear dynamic mechanics, trying to make the design, processing, operation and control of the system and the product to achieve the increasing requirements of the operation speed and accuracy.
The calculation is more close to the real system when considering the gravity, which is of more theoretical meaning for the engineering.

Simulation and Experimental Study on Temperature Distribution of Mass Steel Fiber Concrete Yudong Wang 1, a, Xiaochun Fan 1, b Chunlin Xiang 1, c Hua Liu 1, d 1 School of Civil Engineering and Architecture, Wuhan University of Technology, Hubei, Wuhan, 430070, China a yudong6735@126.com, b fxcfree@163.com, c 407915717@qq.com, d 1362553@qq.com Keywords: Mass high strength concrete, Temperature distribution, Simulation calculation, Experimental study Abstract.
In order to hold the temperature distribution of mass high strength concrete in pouring process, we set up the model that meets with engineering characteristics.

Gonçalves1,b *, Stefano Lenci2,c and Giuseppe Rega3,d 1 Department of Civil Engineering, Catholic University, PUC-Rio, Rio de Janeiro, Brazil 2 Department of Architecture, Buildings and Structures, Polytechnic University of Marche, Ancona, Italy 3 Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Roma, Italy a paulo@puc-rio.br, b dgorlando@gmail.com, c lenci@univpm.it, d giuseppe.rega@uniroma1.it Keywords: Von Mises Truss, Nonlinear Vibrations, Escape Control, Dynamic Instability.
Shallow pyramidal trusses are found in various engineering areas [8], as they constitute the basic substructure of several structures, ranging from large structures like geodesic domes [9] and folding structures [10] up to carbon nanostructures [11, 12].
Saka, Optimum geometry design of geodesic domes using harmony search algorithm, Advances in Structural Engineering. 10 (6) (2007) 595-606
Healey, Snap-through and bifurcation in a simple structure, Journal of Engineering Mechanics. 111 (7) (1985) 909-922
Bagheripour, Efficient numerical method in second-order inelastic analysis of space trusses, Journal of Computing in Civil Engineering. 27 (2012) 129-138

Nonlinear Finite Element Analysis and Test of Lateral Loading for Two-post ROPS Jixin Wang 1,a , Xun Yang1,b and Xiangjun Yu1,2,a 1 College of Mechanical Science and Engineering, Jilin University, Changchun, Jilin Province, China 2 Department of Automatic Control and Mechanical Engineering, Kunming College, Kunming, China a jxwang@jlu.edu.cn, b yangxun08@mails.jlu.edu.cn Keywords: Engineering vehicle, ROPS, Lateral deformation mode, Nonlinear finite element Abstract.
Perera: The Structure Engineer, Vol. 84 (2006) No.1, pp.29-34
Wang: Design Method and Experimental Study on the Roll-over Protective Structures for Engineering Vehicles (Ph.D., Jilin University, China 2006)
Perera: Computer-Aided Civil and Infrastructure Engineering, Vol. 23 (2008) No.6, pp.448-464.

Solidworks software has used by many domains, such as mechanics, architect, electronics engineers, civil engineering, and light industry [4, 5].
An engineering design knowledge reuse methodology using process modelling.
Research in Engineering Design, Vol. 18 (2013), p. 37.

Reliability-based Structural Optimization of Stochastic Structure Systems Considering Stability Xinchi Yan College of Civil Engineering, Jiangnan University, Wuxi 214122, China skywalkeryan@yahoo.com.cn Key words: Failure mode; stochastic structure system; stability; reliability-based structural optimization; optimum vector method Abstract: The problem of failure mode analysis of stochastic structural systems, dealing with the design variables expression, reliability-based structural optimization and improved stability of girders, have been studied in this paper.
Key Engineering Materials (2006), Vols. 324-325: 223-226 [5] Yan Xin-chi, An Wei-guang, Chen Wei-dong.
Journal of Harbin Engineering University (2004), 25(2):147-150 [6] Yan Xin-chi.
Dissertation for the Degree of Harbin Engineering University, 2005