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Online since: December 2010
Authors: Da Peng Zhu, Qing Lu Deng
Analysis on Effectiveness of Landslide Control Based on Internal Force Monitoring of Anti-Slide Piles
Qinglu Deng 1, a, Dapeng Zhu 2, b
1 Faculty of Engineering, China University of Geosciences(Wuhan), Wuhan, Hubei, 430074, China
2 College of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu, Sichuan, 610500, China
adengqinglu@263.net, bzdpcug@126.com
Keywords: Anti-slide pile retaining structure, Internal force, Monitoring, Landslide, Control effectiveness.
Human engineering activities is strong, such as Hu-Rong–Xi highway, Yi-Wan railway and Sinopec pipeline.
Engineering Geologic Background.
Fig.2 shows engineering geological section of the landslide.
Wu, “Post-fuzzy comprehensive evaluation of effectiveness of landslide control”, Chinese Journal of Geotechnical Engineering.
Human engineering activities is strong, such as Hu-Rong–Xi highway, Yi-Wan railway and Sinopec pipeline.
Engineering Geologic Background.
Fig.2 shows engineering geological section of the landslide.
Wu, “Post-fuzzy comprehensive evaluation of effectiveness of landslide control”, Chinese Journal of Geotechnical Engineering.
Online since: May 2012
Authors: Xun Li, Chuan He, Guo Wen Xu
Field Monitoring and Numerical Simulation Study on Mechanical Characteristics of Extra-long Highway Tunnel
Xun Li1, a, Chuan He2, b and Guowen Xu 3,c
1,2,3School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
ageocsulixun@126.com, bchuanhe21@sina.com, c253467503@qq.com
Keywords: Extra-long Tunnel, Monitoring and Measurement Scheme, Numerical Simulation, Mechanical Characteristics.
Taking Motianling tunnel in Chongqing as an engineering background, the monitoring and measurement scheme is proposed for the extra-long tunnel under complex condition, and the field data and the numerical simulation results is analyzed.
The major adverse geological phenomena of the tunnel site area is karst, and the main engineering problems are faults, soft rock, and deformation of weak surrounding rock.
In Chinese [5] Hongpeng Lai, Yonggui Lin, and Yongli Xie: Chinese Journal of Geotechnical Engineering Vol. 31(2009) p. 390.
Taking Motianling tunnel in Chongqing as an engineering background, the monitoring and measurement scheme is proposed for the extra-long tunnel under complex condition, and the field data and the numerical simulation results is analyzed.
The major adverse geological phenomena of the tunnel site area is karst, and the main engineering problems are faults, soft rock, and deformation of weak surrounding rock.
In Chinese [5] Hongpeng Lai, Yonggui Lin, and Yongli Xie: Chinese Journal of Geotechnical Engineering Vol. 31(2009) p. 390.
Online since: September 2011
Authors: Chen Bing Ouyang, Ying Chen, Yi Wang
Causes of Cracks of External Wall Insulation
Chenbing OUYANG 1, a, Ying CHEN1, b, Yi WANG1, c
1School of Civil Engineering, Changsha University of Science & Technology, P.R.China, 410004
asgcsust@sohu.com, byinghuizi0608@126.com, c43490475@qq.com
Keywords: External wall insulation, Cause of crack, Construction management
Abstract.
The purpose of this study is to find out main causes of cracks of external wall insulation covered by ceramic tile, to conduct construction industry to control engineering quality by paying attention on them.
Currently external wall insulation researches about cracking are mainly in three fields: R&D of new anti-crack material, insulation system tectonic technology and engineering project management.
Then construction workers, supervision engineers, supervisors, project managers accept investigation, then answer relevant questions and finish the questionnaires.
The purpose of this study is to find out main causes of cracks of external wall insulation covered by ceramic tile, to conduct construction industry to control engineering quality by paying attention on them.
Currently external wall insulation researches about cracking are mainly in three fields: R&D of new anti-crack material, insulation system tectonic technology and engineering project management.
Then construction workers, supervision engineers, supervisors, project managers accept investigation, then answer relevant questions and finish the questionnaires.
Online since: September 2007
Authors: Hou Quan Zhang, Li Jun Han, Yong Nian He
Study on Complete Stress-Strain Experiment and Destruction
Characteristics of Rock under Lower Confining Pressure
Li-jun HAN
a, Yong-nian HEb and Hou-quan ZHANGc
School of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou,
Jiangsu 221008, China
a
hanlj@cumt.edu.cn, bynhe@cumt.edu.cn, c52zhq@163.com
Keywords: Confining pressure; Brittle rock; Stress-strain curve; Volumetric strain; Destructive
characteristics.
The basis for the rock's load-carrying capacity after destruction is an effective restraint stress, which shows that effective supporting in underground engineering is the key factor for providing the cracked surrounding rock with load-carrying capacity and guaranteeing the stability of the structure.
The intrinsic relationship between rock failure patterns and effective constraints is also reflected in this paper, it is very useful rock engineers to improve the understanding of rock mechanical behavior after failure and its failure process.
Therefore, the effective support for the surrounding rock that supply the effective constraint for the cracked rock mass is the premise of full usage of load carrying ability of surrounding rock itself in the construction of all kinds of underground engineering.
The basis for the rock's load-carrying capacity after destruction is an effective restraint stress, which shows that effective supporting in underground engineering is the key factor for providing the cracked surrounding rock with load-carrying capacity and guaranteeing the stability of the structure.
The intrinsic relationship between rock failure patterns and effective constraints is also reflected in this paper, it is very useful rock engineers to improve the understanding of rock mechanical behavior after failure and its failure process.
Therefore, the effective support for the surrounding rock that supply the effective constraint for the cracked rock mass is the premise of full usage of load carrying ability of surrounding rock itself in the construction of all kinds of underground engineering.
Online since: April 2009
Authors: Rui Ming Ren, Ai Ling Wen, Sheng Wu Wang, Jun Yong Yang
Effect of Surface Nanocrystallization Method
on Fatigue Strength of TA2
Ai-ling Wen1, a, Rui-ming Ren2, b Shengwu Wang3, c, Jun-yong Yang4, d
1
School of Mechanical Engineering, Dalian Jiao tong University, Dalian 116028, China
2
School of Materials Science and Engineering, Dalian Jiao tong University, Dalian 116028, China
3
School of Civil and Safety Engineering, Dalian Jiao tong University, Dalian 116028, China
4
Department of Bogies, Tangshan Railway Vehicle Co.
Tangshan City 063035, China a wenal@djtu.edu.cn, brmren@djtu.edu.cn, cw200351firs@yahoo.cn, dyjy800324@163.com Keywords: combined high-energy shot peening, nanocrystallization, fatigue limit, titanium Abstract: The enhancement of the fatigue strength is significant for the engineering applications of commercial pure titanium and its alloys.
Tangshan City 063035, China a wenal@djtu.edu.cn, brmren@djtu.edu.cn, cw200351firs@yahoo.cn, dyjy800324@163.com Keywords: combined high-energy shot peening, nanocrystallization, fatigue limit, titanium Abstract: The enhancement of the fatigue strength is significant for the engineering applications of commercial pure titanium and its alloys.
Online since: August 2012
Authors: Xu Guang Yu, Gai Qin Su, Zhi Jie Liu, Xin Zhao, Jun Hai Zhao
., School of Civil Engineering, Chang' an University, Chang' an Road 161, P.O.
The results indicate unified strength theory has the good applicability and the solution has an important practical value for engineering application.
Journal of Structural Engineering, 130(2), 180-188
[5] Zhao J.H. (2003). “ Unified Strength Theory and Its Engineering Application.”
The results indicate unified strength theory has the good applicability and the solution has an important practical value for engineering application.
Journal of Structural Engineering, 130(2), 180-188
[5] Zhao J.H. (2003). “ Unified Strength Theory and Its Engineering Application.”
Online since: July 2011
Authors: Shi Cheng Zhao, Bo Zhou
Modeling of Phase Transformation Behaviors of Shape Memory Alloy Associated with Temperature Memory Effect
Bo ZHOU1, a and Shicheng ZHAO1
1College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 15001, China
azhoubo@hrbeu.edu.cn (corresponding author)
Keywords: Shape memory alloy, Temperature memory effect, Phase transformation model.
The temperature memory effect of shape memory alloy (SMA) induced by an incomplete martensitic inverse phase transformation has the potential values in various engineering fields.
The temperature memory effect has the potential values in various engineering fields.
The temperature memory effect of shape memory alloy (SMA) induced by an incomplete martensitic inverse phase transformation has the potential values in various engineering fields.
The temperature memory effect has the potential values in various engineering fields.
Online since: May 2011
Authors: Jie Wu, Yong Hua Yang
Optimal design for prestressed structures based on continuous and discrete variables
Yonghua Yang1, a, Jie Wu2, b
1 College of Building Engineering, Shanghai Normal University, Shanghai RPC 200092
2 College of civil engineering, Tongji University, Shanghai RPC 200092
a yonghua1976@163.com, b wwujie@tongji.edu.cn
Keywords: prestressed structures; optimum; discrete variables; relative difference quotient algorithm.
The prestressed forces variables are continuous, but the cross-section area variables are discrete since the sections of member are restricted in a fixed range in engineering.
The optimal design based on hybrid variables are accorded with actual engineering.
The prestressed forces variables are continuous, but the cross-section area variables are discrete since the sections of member are restricted in a fixed range in engineering.
The optimal design based on hybrid variables are accorded with actual engineering.
Online since: December 2012
Authors: Zhong Jie Su, Jing Wang, Lin Wang
Application of geophysical technology in prevention of mining geological disasters
Zhong-jie Su 1,a , Jing Wang 1, b , Lin Wang 2, c
1Liaoning Technical University, Institute of Civil Engineering and
Transportation, Liaoning Fuxin, 123000, China
2Academy Of Equipment, Beijing,101416, China
a suzhong_jie@163.com,b377180700@qq.com, c 676572748@qq.com
Keywords: disaster prevention; geophysical technology; 3-D seismic exploration
Abstract: The prevention of geological disasters in the coal mine, integrated geophysical technology was used to avoid geological disasters in coal mine, build a harmonious society and improve economic efficiency is of great significance.
Applications and geological problems that can be solved: (1)Direct exploration of high-density strata, geological bodies, such as a large iron, nickel deposits, large mafic, ultramafic rock. (2)Indirect identification of fracture structure, the delineation of hidden rock , etc. (3)Special survey for military purposes, such as rockets and missiles launch sites, etc. 2.5 Seismic exploration Engineering Seismic mainly used to understand the structure of the shallow strata, structure; deep earthquakes are mainly used for coal, oil exploration, understanding the formation of deep structure and other geological problems.
Applications and geological problems that can be solved: (1)Oil exploration: identify stratigraphic structure, oil-bearing structures. (2)Coal geological survey:Identify the structure of coal-bearing strata, undulating shape of coal seams; the depth and thickness of coal seam roof and floor and identify fracture structure, Karst Collapse Column, goaf. (3)hydro-geological survey: identify structure, karst.(4) Engineering Geology 2.6 Log Logging method itself is not an independent system, which converted the probe of the surface to the well detection.
References: [1] Youxin Wu: submitted to Journal of Safety and Enviro nmental Engineering (2009).
Applications and geological problems that can be solved: (1)Direct exploration of high-density strata, geological bodies, such as a large iron, nickel deposits, large mafic, ultramafic rock. (2)Indirect identification of fracture structure, the delineation of hidden rock , etc. (3)Special survey for military purposes, such as rockets and missiles launch sites, etc. 2.5 Seismic exploration Engineering Seismic mainly used to understand the structure of the shallow strata, structure; deep earthquakes are mainly used for coal, oil exploration, understanding the formation of deep structure and other geological problems.
Applications and geological problems that can be solved: (1)Oil exploration: identify stratigraphic structure, oil-bearing structures. (2)Coal geological survey:Identify the structure of coal-bearing strata, undulating shape of coal seams; the depth and thickness of coal seam roof and floor and identify fracture structure, Karst Collapse Column, goaf. (3)hydro-geological survey: identify structure, karst.(4) Engineering Geology 2.6 Log Logging method itself is not an independent system, which converted the probe of the surface to the well detection.
References: [1] Youxin Wu: submitted to Journal of Safety and Enviro nmental Engineering (2009).
Online since: December 2014
Authors: You Li Zhu, Qing Qing Guan, Yong Sheng Shi, Chi Hao Li
The integrated equipment of its application and prospects in wastewater treatment
-- Taking rural areas in Yunnang province for instance
Li Chi-hao1,SHI Yong-sheng1, Guan qing-qing2,ZHU You-li3
1.Institute of Civil Engineering,Kunming University of Science and Technolgy.Kunming 650500,China, 2.
Institute of Environmental Engineering, Kunming University of Science and Technolgy.Kunming 650500,China. 3.
College of Urban Construction and Environmental Engineering ,Chongqing University ,Chongqing 400045 ,P.
Yuan Ding et al [[] Yuan Ding, Ke Peng, Liu Yiqing .A2 / O and integrated use of technology in the oxidation ditch sewage treatment plant [J] Chemical Engineers, 2008 (7): 50 ~ 51. ]using a modified anaerobic / anoxic / aerobic process, namely the anaerobic / anoxic / aerobic oxidation ditch with integrated micro-exposure.
Institute of Environmental Engineering, Kunming University of Science and Technolgy.Kunming 650500,China. 3.
College of Urban Construction and Environmental Engineering ,Chongqing University ,Chongqing 400045 ,P.
Yuan Ding et al [[] Yuan Ding, Ke Peng, Liu Yiqing .A2 / O and integrated use of technology in the oxidation ditch sewage treatment plant [J] Chemical Engineers, 2008 (7): 50 ~ 51. ]using a modified anaerobic / anoxic / aerobic process, namely the anaerobic / anoxic / aerobic oxidation ditch with integrated micro-exposure.