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Online since: February 2012
Authors: Hao Wu, Lei Shi, Yun Qiang Feng, Jian Yang, Ling Yun Yuan, Chen Cheng Weng, Xiao Dong Liu, Zhao Yu Du
A Novel Integration of GNSS and GIS Approach to Foundation Roller Compaction in Civil Engineering ChenCheng Weng1, a, Hao Wu2, b, XiaoDong Liu3, ZhaoYu Du4, Lei Shi5, YunQiang Feng6, Jian Yang1, LingYun Yuan2 1School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China 2School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China 3China Trans Geometrics Co., LTD; Beijing 100101; China 4The Fifth Survey and Design Institute (Group) CO., LTD. of CRCC; Beijing 102600; China 5 China Railway Seventh Group CO., LTD; Zhengzhou 450016; China 6 China Railway Eighth Group CO., LTD; Chengdu 610081; China awengchencheng@163.com, b 9743723@qq.com Keywords: GNSS.
Introduction In the process of large civil engineering, many involving foundation roller compaction, mainly including dump trucks transport, bulldozers paving, large the road roller rolling, and cooperate with small vibration compaction equipments compaction [1, 2, 3].
Therefore, it is necessary to study a real-time, continuity, automation, high precision roller compaction quality monitoring system, in order to adapt to the construction quality management requirements of large engineering rolling.
Z: Engineering of Surveying and Mapping Vol.15 (2006), p. 23
L: Advanced Materials Research Vol. 291-294(2011), p.2805
Online since: November 2016
Authors: Jörg Franke, Alireza Esfandyari, Aarief Syed-Khaja, Daniel Sattler
Physical exergy is categorized into thermo-mechanical and mechanical exergy, and chemical exergy is a specific property of materials, whose value changes depending on the environment [5].
The constituent components specify the quantity of specific heat values of subcomponent materials, which are representing the net enthalpy contribution carried by an electronic component.
ASME 2015 International Mechanical Engineering Congress and Exposition.
American Society of Mechanical Engineers, 2015
Applied Mechanics and Materials Vol. 655, 2014 [8] Schenk, M.; Wirth, S.; Müller, E.: Fabrikplanung und Fabrikbetrieb: Methode für die wandlungsfähige, vernetzte und ressourceneffiziente Fabrik.
Online since: September 2013
Authors: Cheng Li, Hao Xuan Li, Mu Zi Zuo
Study on the Construction Technology of the Graded Granular Cushion at the Bottom of the Subgrade in Highway Engineering Cheng LI, Haoxuan Li, Muzi Zuo College of Architecture, Chang'an University, Xi'an, China 710064 Keywords: Highway Engineering; the Bottom of Subgrade; the Construction Technology of the Graded Granular Cushion Abstract.
The construction flow for the graded gravel at the bottom of the subgrade in highway engineering is as shown in figure 2.
(3) Concentration road-mixing method This construction method is mainly applied to the gravel materials extremely poor in natural gradation, the stone materials of one grade, or some engineering projects with special process requirements.
for ensuring the construction quality of the graded gravel cushion at the bottom of the subgrade in highway engineering; the quality testing of the materials entering fields and the training and improvement of the construction personnel’s technical quality should be enhanced for ensuring the standardized norms of the operations.
Disasters and Prevention and Control Engineering, 2008 (2): 72-75
Online since: May 2014
Authors: Jie Yang, Tao Wei, Cheng Long Hao, Lan Chen, Ke Yi Zhang
Japan started to study stratospheric airship platforms at an earlier time, and plays a leading role in areas such as materials, energy, wind forecasts, thermal analysis and tracking control, and many other key technologies.
Airship key techniques include aerodynamic design, structural design, energy, envelope materials, power plant, environmental data collection, simulation environment test and outfield test.
Envelope Materials.
Zhang : SPACECRAFT ENGINEERING Vol.17(2008),p 70 [5] Lindstrand P.
Qu: Materials Engineering Vol.8 (1993), p. 44 [10] J.H.
Online since: August 2013
Authors: Wei Ke Chen, Peng Yu, Zheng Yan Zhang
Research on the Calculation Method of Engineering Insurance Rate Based on Bill of Quantitles Weike Chen 1, 2, Peng Yu2,a Zhengyan Zhang2 1Department of Management , Tianjin University ,Tianjin, China 2Department of Management , Tianjin University of Technology, Tianjin, China aYP2011yupeng@126.com Key words: Engineering Cost; Engineering Insurance; Insurance Rate; Bill of Quantities Abstract: This paper introduces a calculation method of engineering insurance rate based on engineering cost.
The calculation of the pure premium rate is the key to determine the engineering insurance rate.
Insurance rate of unit engineering is calculated as: (6) is the insurance rate of unit engineering Y, is the engineering cost of part project X, is the engineering cost unit engineering Y.
Insurance rate of engineering project is calculated as: (8) is the insurance rate of engineering project W, is the engineering cost of engineering project W.
Civil engineering, one of the unit engineering, the total engineering cost is 2,781,459RMB.
Online since: September 2014
Authors: Yu Hua Wang, Zhi Ya Zhang, Hai Ning Cao, Ming Su Si, Feng Zhang
Indirect-direct band gap transition by van der Waals interaction engineering in MoS2/WS2 bilayer heterojunction Haining Cao1,2,3,a, Zhiya Zhang1,b, Mingsu Si1,c, Feng Zhang4,d, Yuhua Wang1,e 1Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730 000, China. 2Center for Computational Science, Korea Institute of Science and Technology, Seoul, 136 791, Korea. 3Nanomaterials Science and Engineering, Korean University of Science and Technology, Daejon, 305 350, Korea 4Key Lab of Photovoltaic Materials of Henan Province, School of Physics and Electronics, Henan University, Kaifeng, 475 001, China.
Our results demonstrate that electronic structure tailoring of two-dimensional layered materials should include both spatial symmetry control and interlayer vdW interactions engineering.
MoS2 belongs to another class of layered materials.
MoS2/WS2 Heterojunction with Interlayer vdW Interactions Engineering.
Similar method would be used to study other two-dimensional layered materials.
Online since: December 2014
Authors: Can Zhang Jin, Chun Feng Yang, Hong Liang Li, Heng Nan Gao
Coupled with the the structural differences of the abutment and embankment, how to ensure abutment stable and prevent bridge head bump has been an engineering roadblock in the abutment approach embankment filling engineering.
Engineering properties of liquid fly ash Mix Proportion of liquid fly ash material.
Engineering properties of liquid fly ash material.
The technical indexes of different materials were shown in Table 2.
“Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering”.
Online since: July 2011
Authors: Jian Guang Li
Thermal Stress Performance Analysis for a New External Wall Insulation System Jianguang Li College of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China lijian7553@163.com Keywords: Small frame, Shear key, Thermal stress, Crack.
In this paper, two models are taken as subjects, one being a small frame exterior composite insulation system with the shear key, the other being the system without the shear key.
Model1: W1-XKTP facing layer without shear key.
The thermal physical properties of the material can be seen in [2,3].
First, in this paper, it is assumed that the heat transfer of materials is passed only by heat conduction without considering radiation heat transfer of the materials.
Online since: August 2012
Authors: Xian Meng Li, Rong Long Zhao, Xiang Ma
The conclusion can be use as reference on excavating step for pavement widening engineering.
Journal of Traffic and Transportation Engineering, 2007, 7(1):54-57 [3] JIANG Xin, QIU Yanjun.
Journal of Engineering Geology, 2005, 13(3):419-423 [4] QIAN Jinsong, LIN Jianming.
Analysis of Mechanical Responses for Highway-widening Engineering on Soft Soil Foundation [J].
Journal of Traffic and Transportation Engineering, 2010, 10(1):106-111 [7] MA Xiaohui, LI Lihan.
Online since: October 2014
Authors: Li Ying Wu
The forming process of composite materials The key technology of composite materials is to meet the product shape, size and surface quality of the premise, the reinforced material can be evenly distributed in a predetermined direction, and reduce the performance degradation, the base material to fully complete the curing reaction, the interface and the reinforced material with good, discharge of volatile gas, reduce product porosity.
From the fiber reinforced composite started by the military and engineering circles.
So the improvement of the process becomes the key to development process of advanced composite materials, the next step.
The key technology of fiber winding process of thermosetting composites(C) //Chinese glass steel raw materials market and glass steel latest technology forum proceedings, 2009: 5 -8 [5] .Wang Zhihui, Lu Jia.
Study on the fiber placement head.Mechanical engineer, 2007 (12): 93-94
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