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Online since: September 2011
Authors: Sen Chieh Su, Po Chun Chang, Shuo Yan Chou, Kong King Shieh, Shao Hsien Chen
Department of Mechanical Engineering, National Chung Cheng University, Chia-Yi, Taiwan 621, R.O.C.
Engineering statistical analysis was employed to observe the cutting speeds, feed rates and surface roughness at first place.
The development of aerospace industry is thriving globally, including in the extent of civil aerospace, military purpose, satellites and rocket telemetry etc.
,and Chow,JG.,”Deformation characteristic of nickel alloys during machining,” ASME, Jounal of Engineering for Industry,Vol.104,pp.85-93,1982。
, National Chung Hsing University Department of Mechanical Engineering,2008。
Online since: December 2014
Authors: Wei Dong Li, Nan Lin, Xu Chen
Research on 3D tunnel modeling based on close-range photogrammetry WeiDong Li1, a, Nan Lin1,b and Xu Chen2,c 1 College of Surveying and Prospecting Engineering, Jilin Jianzhu University,Changchun 2 Beijing University of Civil Engineering and Architecture, Beijing a349127577@qq.com ,blinnanzc@126.com,c592230188@qq.com Keywords: Digital close-range, Photogrammetry, Tunnel, 3D modeling, Lensphoto,Accuracy analysis.
In recent years, with the continuous development of digital camera, image processing technology and photogrammetry theory unceasingly consummates, the application of close range photogrammetry in tunnel engineering measurement field began to receive extensive attention [1-4].
Study Area The test site is located in the city of Changchun Jingyue Development Zone, College of geoexploration science and technology Jilin University engineering geological practice base tunnel, tunnel length 58m, width 6.5m, a total of a main hole, and three branch hole, as shown in figure 1.
If the object is angle, in order to ensure the match, should be divided into two engineering shooting.
Combining with engineering examples and photo shooting requirements, using Canon 5DMark I I take field shooting to the tunnel I, and then using the Lensphoto software on the acquisition of the images.
Online since: March 2008
Authors: Hiroshi Suzuki, Yukio Hirose, Yukio Morii, Toshihiko Sasaki, Shunichi Takahashi, Yukio Sato, Kengo Iwafuchi, Yasuto Kondo, Ryoichi Monzen
In order to prevent such rail failures, the estimation of the behavior of internal rail cracks is required based on the exact engineering analysis model as well as conducting rail test to search rail defects.
In order to prevent these rail failures effectively, the rail defect management based on the engineering analysis is required.
Kato: Rail, Japan Railway Civil Engineering Association, Tokyo, 1968, p. 127 [4] S.
Jeong:, "UIC/WEC Joint Research Project on Rail Defect Management, Correlations Between Rail Defect Growth Data and Engineering Analyses, Part I: Laboratory Tests" Tokyo Japan, 2002, p.8 [10] D.
Jeong:, "UIC/WEC Joint Research Project on Rail Defect Management, Correlations Between Rail Defect Growth Data and Engineering Analyses, Part I: Laboratory Tests" Tokyo Japan, 2002, p.8 [11] P.
Online since: October 2012
Authors: Tao Li, Ying Chao Liu, Bo Liu, Wei Hong Yang, Kai Bin Liu
The monitoring results can provide reference for similar engineering in the future.
Chinese Journal of Rock Mechanics and Engineering, 2000(3):584~589(in Chinese) [4] Cheng Hua, Sun Jun.
Chinese Journal of Rock Mechanics and Engineering, 1997(4):327-336(in Chinese) [5] ShiGH, GoodmanRE.
Factors of safety and reliability in geotechnical engineering[J].
Journal of Geotechnical and Geoenvironmental Engineering, 2000, 126(4): 307―316
Online since: October 2010
Authors: Wan Jun Ye, Xiao Xiang Li, Hui Fang Zheng, Xi An Li
Test results of various index value shows that the mortar mix ratio obtained in this paper can meet the need of plastering and masonry engineering.
High strength level of mortar cement is not required in general civil engineering, and the more lower level of cement is used, the more slurry is generated, making the mortar liquidity better and increasing the water retention, consequently, the P.C 32.5 composite portland cement used in the test, was bought from Qinling Cement Co., Ltd, whose production is the largest in china.
The workability, often ignored in engineering practice, is very important to the application performance of the mix mortar.
PETROLEUM ENGINEERING CONSTRUCTION, No. 1(2000)
XU, X.H.SUN: Experimental Study and Application of the Desert Sand as the Engineering Material in the Foundation in stead of the Engineering Sand.
Online since: June 2008
Authors: Shan Wang, Xing Hua Shi, Jing Zhang, Ding Hai Xu
Wang d 1 School of Civil Engineering, Harbin Engineering University, Harbin 150001, P.R.
a zhangjing8270@163.com, b shixinghua9@163.com, c xudinghai@hrbeu.edu.cn, dwangshan@hrbeu.edu.cn Keywords: underwater contact explosions; defensive structure; random variables; destroy index; destroy probability Abstract: The reliability of ship defensive structure subjected to underwater contact explosions is important both in theory and engineering.
The experiment indicated that dynamic limit intensity varied with the loads even for the same material, but in the engineering, dynamic limit intensity could approximately reduced to be several times of static intensity [6].
Acknowledgment This paper was supported by the National Natural Science Foundation of China and China Academy of Engineering Physics (Grant No. 10276013).
Hao: Structural Safety Vol. 23 (2001), p.157 [2] Xiao G, Li TT: Monte Carlo method in system reliability analysis (Science Press, China 2003) [3] Chen Q, Liu XB: Stochastic FEM and its applications in engineering (Southwestern Jiao Tong University Press, China 1993) [4] L.D.
Online since: May 2011
Authors: De Ping Zhang, Xi Kun Guan, Yu Zheng, Quan Sheng Sun, Xiao Guang Guo
Research on the Application of Horizontal Rotation Construction Method with Flat Hinge in Cable-Stayed Bridge Construction Quansheng Sun a, Xiaoguang Guo b, Deping Zhang, Xikun Guan and Yu Zheng Civil Engineering College of Northeast Forestry University, Harbin 150040, China a hrbsqs@126.com, b 2008wsgxg@163.com Keywords: Cable-stayed Bridge, Single point, Flat hinge, Rotation construction.
The successful rotation construction of Suifenhe cable-stayed Bridge proved the feasibility and technical advancement of the horizontal rotation construction method with flat hinge in similar engineering construction, especially the bridges with symmetry structure.
EI-Diraby: Journal of Construction Engineering and Management, Vol.132 No. 4 (2006), p.354 [2] Baochun Chen, Chao Sun, and Youjie Chen: Journal of Highway and Transportation Research and Development, Vol.18 No. 2 (2001.4), p.29 [3] Lianyan Zhang, Etc, in: Rotation Bridge Construction, edited by China Communications Press, Beijing 2003, 3 [4] Quansheng Sun, Etc: Journal of Wuhan University of Technology, Transportation Science & Engineering, Vol.31 No. 3 (2007.6), p.403 [5] Wuqin Wang: Bridge Construction, No. 2 (1998), p.29 [6] Fucang Li: Municipal Engineering Technology, Vol.22 No. 6 (2004.12), p.336 [7] Suoming Mao: Journal of Railway Engineering, No. 1 (2009.1), p.59 [8] Information on http://www.gov.cn/jrzg/2008-09/04/content_1087683.htm [9] Information on http://www.hnsc.com.cn/news/2010/01/28/453196.html
Online since: April 2014
Authors: De Jun Mao, Fei Cheng Liu
Comprehensive Evaluation on Effects of Strengthened by Bonding Steel Plate or CFRP Based on Analytic Hierarchy Process Dejun Maoa *, Feicheng Liub School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China a541089451@qq.com, b834209763@qq.com Keywords: Bridge Reinforcement, Strengthening Bonded Steel Plate, Strengthening Bonded CFRP, Analytic Hierarchy Process, Comprehensive Evaluation.
Pasting steel plate and CFRP are two methods which are usually applied to bridge reinforcement engineering.
Jinlong Liu, Wensong Zhou, Yongzhang Tang, Hui Li: Earthquake Resistant Engineering and Retrofitting.
Yaxun Yang, Ziqing Li, Xianwu Hao: Journal of Zhengzhou University (Engineering Science).
Chenglin Shan: Journal of Basic Science and Engineering.
Online since: October 2013
Authors: Zhen Xi Yu
The Applied Research of Safety Monitoring and Forecasting Technology in the Foundation Pit Supporting Construction Zhenxi Yu Anhui University and Technology of Architecture and Civil Engineering Institute Anhui Ma’an Shan 243032 Keywords: deep foundation pit, supporting construction, monitoring technology; Abstract.
Control accuracy is the main part for monitoring technical process in deep foundation pit supporting construction, the requirement of monitoring is higher and higher than before, relevant monitoring method, frock and tools, earthwork type of shipping and downriver way in engineering construction will develop in revolutionary way.
The Monitoring Purpose in Deep Foundation Pit Supporting Construction In supporting construction, due to the complexity of the geological condition, loading condition, material property, strained condition and mechanical mechanism of underground structure, working conditions and other factors from outside, so far, supporting construction is still a incomplete scientific technology, it is hard to predict problems happening in the engineering from aspect of theory, furthermore, theory prediction value can not reflect all kinds of changes in engineering completely and correctly.
According to the construction experience of soft deep foundation pit engineering in Shanhai, the head office of Shanhai subway raises the issue that there are four degrees of foundation pit deformation control conservation standards to consider problem of environment protection, in the phase of soil nailing wall supporting of foundation pit, if the ration of lateral displacement on the top of foundation pit and depth of digging is greater than 0.3% or between 0.3%~0.5%, it must strengthen observation, analysis its reason seriously, and then take reinforcement measure in the first time, beyond that, for the depth bedding moment of survey building envelope etc. smooth changing curve, if there is clear breaking changing in curve, it ought to make alarm.
Conclusions Monitoring and predicting of deep foundation pit supporting construction in our country needs to be built and perfected in order to fit the situation of China, the standard and management mechanism in China, and improve monitoring and management continuously, and then enhancing attention for quality from participant to make sure the safety of deep foundation pit engineering.
Online since: September 2011
Authors: Yan Xin Lv, Cheng Bo Zhai, Meng Zhang, Xian He Weng, Bao Fu Duan
Stability Evaluation on High Rock Slope of Open-pit for Ash Storage Baofu Duan 1,2 a, Meng Zhang 1,2,b ,Yanxin Lv2,c,Chengbo Zhai 2,d , Xianhe Weng2,e 1 Shandong University of Science and Technology;Qingdao 266510, China; 2Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation;Qingdao 266510, China; aduanbaofu@126.com, bzm0309@126.com , clv.yanxin@hotmail.com , d415091409@qq.com, e 408924390@qq.com Keywords: Open-pit; Slope Stability; Practical Control Scheme; Evaluation; Monitoring; Consequent slope; Abstract.
Feasible practical control scheme and monitoring program are put forward according to the engineering practice.
Summary of Geological Analysis Although the north part of open-cut slope has a complicate engineering geological condition and many faults, these tectonic faults are distributed in the middle slope and no consequent fault is found along the north-slope eyebrow line.
Conclusions The north part of open-cut slope has a complicate engineering geological condition and many faults, but the influence degree is very limited.
WangGongXian slope and landslide control engineering [M].