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Online since: September 2011
Authors: Hong Shi, Lai Xue Pang, Rui Ying Shi
Solution of Microseismic monitoring Non-linear Location Equations Based Matlab
Hong SHI 1, a, Laixue PANG 1,b and Ruiying SHI 2
1 Shandong Jiaotong University, Department of Civil Engineering, Shandong, Jinan, 250023, China
2 Shandong University of Science and Technology, Shandong, Qingdao, 266510, China
ashi_hong@163.com, blaixuepangcn@163.com l
Keywords: microseismic; non-linear equations;locating equation; Gauss-Newton iterative method; strata rupture
Abstract.
The method of solving locating equation and the stability of answer are the key matter of microseismic monitoring applications in engineering fields.
There are many methods of microseimic source location, for the small scale rock and soil engineering of microseicmic location, the main application is 2d and 3d microseismic location [1-6].
In microseismic location, the solution of location traveltime equation, stability and the convenience of the equation is the key of microseismic location engineering application.
P-wave spread quickly, considering the rock and soil engineering construction area is as small as an area of a few hundred meters.
The method of solving locating equation and the stability of answer are the key matter of microseismic monitoring applications in engineering fields.
There are many methods of microseimic source location, for the small scale rock and soil engineering of microseicmic location, the main application is 2d and 3d microseismic location [1-6].
In microseismic location, the solution of location traveltime equation, stability and the convenience of the equation is the key of microseismic location engineering application.
P-wave spread quickly, considering the rock and soil engineering construction area is as small as an area of a few hundred meters.
Online since: January 2014
Authors: Jin Kui Li, De Jun Wang, Yue Bo Fan
Blasting vibration damping design and effect analysis in subway shaft construction
Jinkui Li a, Dejun Wangb and Yuebo Fanc
Dalian University Civil Engineering College, Dalian 116622, China
ajinkee@126.com, bfei615yang@163.com, cfan_yuebo@126.com
Keywords: subway shaft construction, Mining method, Blasting vibration, vibration damping design, Vibration monitoring.
The monitoring results show the blasting parameters and damping measures can meet requirements of Engineering and standardization of the industry.
Engineering situation and geological conditions Engineering situation.
Chinese Journal of Geotechnical Engineering, 2007(01):p88-93
The Problem of Blasting Vibration in Metro Engineering [J].
The monitoring results show the blasting parameters and damping measures can meet requirements of Engineering and standardization of the industry.
Engineering situation and geological conditions Engineering situation.
Chinese Journal of Geotechnical Engineering, 2007(01):p88-93
The Problem of Blasting Vibration in Metro Engineering [J].
Online since: April 2014
Authors: Shuai Wang, Jing Zhang, Xiu Hua Fu, Yang Kou, Dong Mei Liu
Design and Fabrication of Mult-wave Band Yellow Laser Filter Film
LiuDongmei1, WangShuai1,a,FuXiuhua1,ZhangJing1,Kou Yang1
1College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun, Jinlin 130022, China
aEmail:zoeoptics@163.com
Keywords: thin film, yellow laser, correction coefficient
Abstract.
In recent years, yellow laser has the broad application in military, civil use, health care and so on, so it is important to study the cavity facet film in yellow laser.
In recent years, yellow laser has the broad application in military, civil use, health care and so on, so it is important to study the cavity facet film in yellow laser.
Online since: September 2014
Authors: Shi Lei, Li Zhe
Research on Improvement of Thermal Insulation and Anti-radiation Performances of Traditional Wooden Vernacular Dwellings of Tujia Minority in West Hunan
Li Zhe1, 2,a *, Shi Lei2,b
1 Mobile Post-doctoral Stations of Civil Engineering at Central South University (Changsha, Hunan Province, China, 410000)
2 School of Architecture and Art, Central South University (Changsha,Hunan Province, China, 410000)
Grants: supported by the National Natural Science Foundation of China (51308548), China Postdoctoral Science Foundation (No. 2014M552155) and the Planned Science and Technology Project of Hunan Province (2013RS4054)
a382888561@qq.com, b330980452@qq.com
Keywords: Tujia Minority, Traditional Wooden Dwellings, Thermal Insulation and Anti-radiation Performance, Improvement
Abstract.
Meanwhile, feasibility of improvement technologies proposed in this paper was validated by practical engineering tests and data detected before and after tests Test of Thermal Insulation and Anti-radiation Performances of Traditional Wooden Vernacular Dwellings Traditional wooden vernacular dwellings of Tujia Minority in West Hunan are built by materials easily available from local areas, and the building forms have evolved for a thousand years.
In March of 2013, authors carried out an engineering experiment for Faming Wang’s house in Longxi Village, Qianling Town of Baojing County to improve thermal insulation and anti-radiation performances of walls (Fig 4).
The engineering test of Faming Wang’s house in Longxi Village, Qianling Town of Baojing County and data detected before and after the engineering test validated that thermal insulation and anti-radiation performances of vernacular dwellings were drastically improved via technological improvement proposed in this paper.
Meanwhile, feasibility of improvement technologies proposed in this paper was validated by practical engineering tests and data detected before and after tests Test of Thermal Insulation and Anti-radiation Performances of Traditional Wooden Vernacular Dwellings Traditional wooden vernacular dwellings of Tujia Minority in West Hunan are built by materials easily available from local areas, and the building forms have evolved for a thousand years.
In March of 2013, authors carried out an engineering experiment for Faming Wang’s house in Longxi Village, Qianling Town of Baojing County to improve thermal insulation and anti-radiation performances of walls (Fig 4).
The engineering test of Faming Wang’s house in Longxi Village, Qianling Town of Baojing County and data detected before and after the engineering test validated that thermal insulation and anti-radiation performances of vernacular dwellings were drastically improved via technological improvement proposed in this paper.
Online since: August 2013
Authors: Jun Liang, Xian Quan Han, Jun Hua Zhao
Implementation of A Wireless Strain Collection Terminal
Junhua Zhao1,2, a, Jun Liang1,2,b and Xianquan Han1,2,c
1 Yangtze River Scientific Research Institute, Wuhan 430010, China
2 Research Center on Water Engineering Safety and Disaster Prevention of MWR,Wuhan 430010,China
ajhzhao2009@163.com, bkeyindex@163.com, cmydabao112@hotmail.com
Keywords: strain collection; structure health monitoring; wireless sensor network; ZigBee
Abstract.
In order to resolve the problem of complex wire routing, reliability and lightning-proof difficulty in automatic monitoring system of water conservancy engineering, the paper proposes a volume-compact, easily connected wireless strain collector.
Introduction Along with the successive construction of giant hydraulic and hydro-power engineering, the structural health monitoring[1,2] for hydraulic structure and civil engineering structure becomes more and more important.
Bartholmai, Wireless Sensor Network with Temperature Compensated Measuring Technology for Long-Term Structural Health Monitoring of Buildings and Infrastructures, Procedia Engineering, 25(2011), p.1032-1036
In order to resolve the problem of complex wire routing, reliability and lightning-proof difficulty in automatic monitoring system of water conservancy engineering, the paper proposes a volume-compact, easily connected wireless strain collector.
Introduction Along with the successive construction of giant hydraulic and hydro-power engineering, the structural health monitoring[1,2] for hydraulic structure and civil engineering structure becomes more and more important.
Bartholmai, Wireless Sensor Network with Temperature Compensated Measuring Technology for Long-Term Structural Health Monitoring of Buildings and Infrastructures, Procedia Engineering, 25(2011), p.1032-1036
Online since: October 2011
Authors: Zai Lin Yang, Hui Wen Wang, Xiao Juan Sun
Scattering of subsurface cylindrical cavity near multiple semi-cylindrical alluvial valleys under incident SH-waves
Huiwen Wang1, a, Xiaojuan Sun1,b,Zailin Yang2, c
1 Heilongjiang Institute of technology,Harbin China 150050
2College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin China150001
ahuiwenwang9@sohu.com, bsunxiaojuan668.163.com, cyangzailin00@163.com.
When the alluvial valleys are “softer”, DSCF dose not always decrease as increases especially under incident waves with high frequency, which should be paid more attention to in design and engineering practice
Earthquake engineering and engineering vibration. 2002, 22(2):9-16
Earthquake engineering and engineering vibration. 2003,23(3).41-46
Earthquake Engineering and Engineering Vibration. (1996), 16(2) :1-13
When the alluvial valleys are “softer”, DSCF dose not always decrease as increases especially under incident waves with high frequency, which should be paid more attention to in design and engineering practice
Earthquake engineering and engineering vibration. 2002, 22(2):9-16
Earthquake engineering and engineering vibration. 2003,23(3).41-46
Earthquake Engineering and Engineering Vibration. (1996), 16(2) :1-13
Online since: November 2012
Authors: Ke Gang Li, Wei Liang, Dong Pu Zheng
Introduction
With the increasingly deepening of highway engineering and mining engineering etc., the construction engineering with granular rock are more and more widespread, such as the dump engineering in open pit production, the building of highway roadbed and so on.
Chinese Journal of Geotechnical Engineering, 1992,14(1):14-24.
Engineering geology, 2002,(63): 93-98
Subgrade Engineering, 2007,5:95-96.
Journal of Harbin University of Civil Engineering and Architecture, 2000,33(6):129-132.
Chinese Journal of Geotechnical Engineering, 1992,14(1):14-24.
Engineering geology, 2002,(63): 93-98
Subgrade Engineering, 2007,5:95-96.
Journal of Harbin University of Civil Engineering and Architecture, 2000,33(6):129-132.
Online since: December 2012
Authors: Gang Cheng, Wei Dong Wang, Dun Fu Zhang
Implementing of Displacement Boundary Conditions of Element-free Galerkin Method and its Applications used in Fracture Mechanics
Gang Cheng a , Weidong Wang b*, Dunfu Zhang b
a School of Mechanical and Electronic Engineering, Key Laboratory of Mechanical Engineering & Innovation Technology in Universities of Shandong, Shandong Jianzhu University, Shandong, Jinan 250101, China
bDepartment of Engineering Mechanics, School of Civil Engineering,Shandong University, Jinan, 250061, China
Keywords: Element free Galerkin method, Essential boundary conditions, Stress intensity factors, Crack propagation, Mixed transformation method
Abstract.
International Journal for Numerical Method in Engineering, 1994, 37:229~256
Computer Methods in Applied Mechanics and Engineering, 1996,131:133~145
Engineering Mechanics, 2002,19(1):25~28 (in Chinese)
Engineering Fracture Mechanics, 2008,75: 986-1004
International Journal for Numerical Method in Engineering, 1994, 37:229~256
Computer Methods in Applied Mechanics and Engineering, 1996,131:133~145
Engineering Mechanics, 2002,19(1):25~28 (in Chinese)
Engineering Fracture Mechanics, 2008,75: 986-1004
Online since: October 2011
Authors: Ling Huang, Liang Chang
Study on Wind-resistant Design for Super
High-rise Building Envelop
Ling Huang a, Liang Changb
College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
anchyhl2@126.com, bchangbing130@163.com
Keywords: Super high-rise building.
The results show that the numerical wind tunnel to some extent, more in line with the measurement results, but the errors in some parts are still large, relevant results will provide references for the research and the engineering practice.
In this paper a brief introduction of Nanchang International Financial mansion manometry test model was stated first, and the analysis and study on wind load are carried out by numerical simulation method, simulation results are compared with experimental research in order to provide references for the research and the engineering practice.
Then according to extreme value pressure at various points, draws the pressure profile, and induces the design wind pressure distribution area chart, provides the curtain wall design basis for structural engineers.
The results show that the numerical wind tunnel to some extent, more in line with the measurement results, but the errors in some parts are still large, relevant results will provide references for the research and the engineering practice.
In this paper a brief introduction of Nanchang International Financial mansion manometry test model was stated first, and the analysis and study on wind load are carried out by numerical simulation method, simulation results are compared with experimental research in order to provide references for the research and the engineering practice.
Then according to extreme value pressure at various points, draws the pressure profile, and induces the design wind pressure distribution area chart, provides the curtain wall design basis for structural engineers.
Online since: October 2011
Authors: Jia Zhu Xue, Xiang Cao Zhi, Xiu Li Cao
The Research on Damage and Failture Mechanism of
Drivepipe under Seismic Load
ZHIXiang CAO1,a,XUEJia ZHU1, band XIUli CAO1,c
1 College of Civil and Transportation Engineering, Hohai University, Nanjing, China
acaozhx2005@126.com, bzhuxuejia@126.com, cCaoxiuli@163.com
Keywords: Seismic load; drivepipe damage; Mechanical model; Mathematical model; Extruding strength
Abstract.
Geological factors and engineering factors is a major factor to damage, the drivepipe deformation under pressure seismic load which used to establish mathematical model of the mechanical model can calculated the stress and strain analysis of the casing.
In the complex geological conditions, analysis are carried mainly from the geological factors, engineering factor, oil field chemical factors and fault tree analysis of several aspects , and seismic load conditions oil well drivepipe damage is the main form of the reservoir bottom to top the drivepipe necking deformation, bad break and rupture.
Inflation rocks with stable tunnel, submitted to Journal of Rock Mechanics and Engineering, 5-141 (1983)
Geological factors and engineering factors is a major factor to damage, the drivepipe deformation under pressure seismic load which used to establish mathematical model of the mechanical model can calculated the stress and strain analysis of the casing.
In the complex geological conditions, analysis are carried mainly from the geological factors, engineering factor, oil field chemical factors and fault tree analysis of several aspects , and seismic load conditions oil well drivepipe damage is the main form of the reservoir bottom to top the drivepipe necking deformation, bad break and rupture.
Inflation rocks with stable tunnel, submitted to Journal of Rock Mechanics and Engineering, 5-141 (1983)