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Since then, the AVMS has targeted the creation of a platform for researchers, engineers, academicians as well as industrial professionals to share their research results and experiences in the field of acoustics and vibration.
MARGHITU - Auburn University, USA KALE OYEDEJI - Morehouse College, Atlanta, GA, USA CRISTIAN PAVEL - Technical University of Civil Eng.

[4]Qian Jiahuan, The Principles and Calculations in Civil Engineering, Water Conservancy and Electric Power Press, Beijing, 1984. 57-60.

Research on arching Mechanism of the lane arching under pre-stress bolt supporting Zhao Yucheng 1,2,a , Zhang Jianying1,2,b, Xiang Zhiquan1,2,c 1 State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining & Technology, Xuzhou, Jiangsu, 221008,China 2 School of Mechanics and Civil Engineering, China University of Mining & Technology, Xuzhou, Jiangsu,221116,China.
To improve the stability of surrounding rock through choosing reasonable row spacing and geometric parameters of the bolt in the process of supporting was always a hotspot that exited important engineering significance.
In other words, it does not destroy the original structure and through reasonable anchoring measures to improve the strength of rock or soil, becomes passive for active supporting, so the pre-stress anchoring technology is an efficient, safe, economical reinforcement technology, gets the high attention of engineering community and rapid development[1].
So, by using the finite element analysis software ANSYS analysis the stress field of the surrounding rock under the action of single and multiple pre-stress anchor, get the formation mechanism of the pressure arch in the surrounding rock by selecting the bolt support parameters reasonably and provide reference for engineering practice. 1 The basic principle of arching under pre-stress bolt supporting The excavation of lane will lead to the redistribution of surrounding rock stress, that it destroys the original equilibrium stress state, the stress redistribution is a stable process that is organized by surrounding rock itself in the in lane construction.

Research on Rotation Mining with Large Angle for Unequal and Fully Mechanized Mining Face Zhitao Ma 1, a, Saijiang Liang 2,b and Yongping Wang 3,c 1Shandong University of Science and Technology, Resources and Environment engineering institute, Qingdao, 266590, China 2Shandong University of Science and Technology, Resources and Environment engineering institute, Qingdao, 266590, China 3 Shandong University of Science and Technology, School of Civil engineering, Qingdao, 266590, China amzt123@sina.com, bsdkdlsj@163.com, cwyp7841@163.com Keywords: Fully mechanized mining face, Coal under complex conditions, Large angle, Rotation mining Abstract.
Because large amounts of coal under complex conditions caused by fully mechanized mining can not be mined, the rotation mining with large angle for unequal and fully mechanized mining face and its design and main parameters are introduced in this article based on an engineering practice.
Mining Engineering, Vol.9, No.1, p17-18, 2011.

Inspection and Appraisal Method of a wharf on piles and Result Analysis Liqiang Wang1, 2,a Kaihui Jiang2 Changhong Huang2 1 School of civil engineering, Tianjin University, Tianjin, 300072, China 2Tianjin branch of Naval Engineering University, Tianjin, 300450, China atjwangliqiang@163.com Keywords: Wharf on piles, Inspection and Appraisal, non-destructive testing method.
Wharf on piles is a main structure in costal engineering.
The method is simple and economic, but the appraisal result is always influenced by subjective factors such as inspection engineer experience and theory knowledge.
Thus only the practical method can be applied in engineering practice.
[2] Ministry of Transport of the People’s Republic of China: Technical specification of prototype observation for water transtport engineering hydrostructure(JTJ 218-2005), BeiJing, China(2005), in Chinese

On pumping ultra-early strength concrete of artificial sand Yuezhong LIN 1,a , Dongcai Lin 2,b 1Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology) Qingdao China 266590 2The School of Resources and Environmental Engineering in University of science and Technology Qingdao China 266590 ajcssust0@163.com ,b6057170@163.com Key words: ultra-early-strength; concrete; pumping; artificial sand Abstract.
This study is based on the need of Faer coal mine to adopt P42.5 portland cement, Tz-1 early strength agent, Tj-1 super plasticizer, prepared from 8 hours to form removal, 16 hours strength of up to 7.9MPa, 24 hours strength of 19MPa, 3 day strength to 37MPa, and the construction of super-excellent early strength pumping artificial sand concrete, and obtained satisfactory results through engineering.
Raw materials and test methods Raw materials Mechanical calculation based on the engineering project needs and need concrete strength grade C30, but the early strength to meet the 16-hour requirement can hold charge, or 8 hours to form removal, 16 hours to reach the design strength of 20%, 24 hours to reach the design strength 40% of the material for this choice are as follows: Cement: Hailuo P42.5 ordinary portland cement.
Water-reducing agent: According to the engineering requirements determined through the ultimate test by TJ-1 type water reducing agent, the water-reducing agent for the pale yellow powder.
In this study, 3 factors and 3 levels orthogonal design, the design is shown in Table 2.1 Tab. 2.1 Concrete Mixing Ratio Design Serial number Water-cement ratio Fly Ash TZ-1 1 1（0.40） 1(20%) 3（2.5%） 2 2（0.42） 1(20%) 1（1.5%） 3 3（0.44） 1(20%) 2（2%） 4 1（0.40） 2(25%) 2（2%） 5 2（0.42） 2(25%) 3（1.5%） 6 3（0.44） 2(25%) 1（2.5%） 7 1（0.40） 3(30%) 1（1.5%） 8 2（0.42） 3(30%) 2（2%） 9 3（0.44） 3(30%) 3（2.5%） The strength of 16h and 1d and 3d and 7d and 28d were measured based on the needs of engineering.

Practical Calculation of Highway Foundation Settlement of The Yellow River Alluvial Plain HongxiaYang1, a, Zhengrong Zhao 1,b 1 Department of Civil Engineering, Shandong Jiaotong University, Jinan, Shandong, 250023, China a yanghongxia0531@163.com, b zhaozhengrong0531@163.com Keywords: The Yellow River alluvial plain,Standard penetration number,Highway foundation,Final settlement,Calculation.
Abstract.In order to solve the problem of great error in calculating the Yellow River alluvial plain highway’s foundation settlement with delamination summation-method and regulate formula method,we put forward the reason of calculating the final settlement by drilling standard penetration number.It is according to the principles of delamination summation-method and elastic theory method and it is combined with engineering prospecting tests results.Finally,we inference the empirical formula in calculating the final settlement by standard penetration number.The comparison of the calculation of the final settlement by drilling standard penetration number and the statistics by actual observation of jinan-heze expressway has proved the correctness of calculation formula.
of Piles Engineering index of fill subgrade Final settlement(cm) Height (m) Average unit weight (kN/m³) Delamination summation-method Standard Standard penetration number Measured K113+740 1.58 19.5 2.59 3.65 3.98 3.95 K114+416 2.15 19.6 5.87 3.10 3.32 3.23 K125+671 3.10 19.5 7.49 9.60 7.80 6.48 K133+600 4.32 19.3 24.10 27.30 19.90 21.40 K151+065 5.03 19.3 20.76 12.45 20.50 11.60 where,ratio of slope of embankment m=1.5,top width B=30m.
Average engineering index of subgrade soil of different layers can be found in reference book [5].
Acknowledgements Fund:Supported by Shandong Traffic Technology Projects:Jihe expressway engineering comprehensive technical research.

Asad Abdurrahman1,c 1Department of Civil Engineering, Faculty of Engineering, Hasanuddin University, Gowa, Indonesia asayaikhsan23@gmail.com, brosmariani_ar@yahoo.com, cmuh.asad@yahoo.com Keywords: Construction, Risk Management, Design and Build, House of Risk Abstract.
Project Delivery Systems, Journal of Construction Engineering and Management, Vol 124 No 6 p 435–444
B., (2012), Impact of Risk on Performance of Design and Build Projects in Lagos State, Nigeria Journal of civil engineering and architecture, Vol 6 No. 9 p 1210-1217
F., (2019), Design Changes in Construction Projects – Causes and Impact on the Cost, Civil Engineering Journal, Vol 5 No 7 p 1647-1655 [26] Nguyen P.
P., (2020), Risk Management in Engineering and Construction A Case Study in Design-Build Projects in Vietnam Engineering, Technology and Applied Science Research, Vol 10 Issue 1 p 5237-5241

Structural Optimization Design on the Sunflower Shaped Arch Bridge Wang Wen-qing1, a 1 Anhui Jianzhu University, Hefei Anhui 230601, China awangwq20088@126.com Keywords: Bridge engineering; Sunflower Shaped Arch Bridge; Structural Optimization; Orthogonal Test.
China Civil Engineering Journal,2008,41(6):69-74 [5] Li Xiaoli, Xiao RuCheng and Sun Zhiguo: Optimization of Single pylon cable-stayed bridge scheme based on orthogonal test method.

A one dimensional finite element method is presented to calculate the shear lag effects with multi-span continuous curved in engineering for general box girder.
Actually, multi-span box girder is more widely used in engineering.
Shear Lag Analysis and Effective Width of Curved Girder Bridges[J].Journal of Engineering Mechanics,ASCE,1985，111（1）：87-92 [3] LUO Qizhi, LI Qiusheng.
Shear Lag of Thin-Walled Curved Box Girder Bridges[J].Journal of Engineering Mechanics,ASCE,2000，126（10）：1111-1114 [4] DUAN Haijuan, ZHAO Renda, ZHOU Yiyun.
Journal of Civil Engineering, 1983, 16(1):1-13. in Chinese