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Online since: May 2011
Authors: Ying Na Dong, Zhi Da Li, Qiang Huang
Field Monitoring of Surrounding Rock Stress and Rheological Analysis in Tunnel Construction
Qiang Huang 1,2, a, Yingna Dong 2, b and Zhida Li 1,c
1School of Transportation, Wuhan University of Technology, Wuhan,430063,China
2Dept. of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang,471003,China
a757882635@qq.com,b dongyn2000@sina.com,c zhidali@163.com
Keywords: Tunnel Construction, Bench Method, Surrounding Rock Stress, Field Monitoring, Rheological Analysis.
Table 1 The physical and mechanical indices of surrounding and supporting material E [GPa] μ γ[KN/m3] [°] C[MPa] Grade IV rock 6 0.32 20 30 0.60 C25shotcrete 25 0.25 23 C25reinfoced concrete 30 0.20 25 Φ22 rock bolt 190 0.3 79 Since the sensor starts work afte the excavation of upper bench, the sensor readings is the stress increment in following excavation steps.
[3] Yu Xuefu: New Concept of Rock Mechanics and Structure Excavates Optimization Design, Beijing, Science Publishing house,1995, in Chinese
[5] Li Zhida, Huang Qiang: Field Monitor of Surround Stress and Rheological Analysis in Tunnel Construction,Jouenal of Wuhan university of technology(transportation science &engineering), (2010.3) p. 129–133, in Chinese
[6] Huang Qiang, Li Zhida, Wu Yanzhen: Analysis on Surrounding Rock Stress in shallow-buried bias Tunnel, Natural Science Journal of Xiangtan University, 2010(1);25-29 [7] Yang Tingqing: Viscoelastic theory and application, Science Press, Beijing. (2004)
Table 1 The physical and mechanical indices of surrounding and supporting material E [GPa] μ γ[KN/m3] [°] C[MPa] Grade IV rock 6 0.32 20 30 0.60 C25shotcrete 25 0.25 23 C25reinfoced concrete 30 0.20 25 Φ22 rock bolt 190 0.3 79 Since the sensor starts work afte the excavation of upper bench, the sensor readings is the stress increment in following excavation steps.
[3] Yu Xuefu: New Concept of Rock Mechanics and Structure Excavates Optimization Design, Beijing, Science Publishing house,1995, in Chinese
[5] Li Zhida, Huang Qiang: Field Monitor of Surround Stress and Rheological Analysis in Tunnel Construction,Jouenal of Wuhan university of technology(transportation science &engineering), (2010.3) p. 129–133, in Chinese
[6] Huang Qiang, Li Zhida, Wu Yanzhen: Analysis on Surrounding Rock Stress in shallow-buried bias Tunnel, Natural Science Journal of Xiangtan University, 2010(1);25-29 [7] Yang Tingqing: Viscoelastic theory and application, Science Press, Beijing. (2004)
Online since: April 2013
Authors: Qian Xiang Zhou, Ye Deng, Rui Yang
The Multi-resolution Modeling of CTCS-3 Visualization Based on Meta-model
Ye Deng1, a, Rui Yang2, b, Qianxiang Zhou1, c
1School of biological science and medical engineering, Beihang University, China
2Chinese aeronautical radio electronics research institute, China
ady945207@gmail.com, bryang12@126.com, czqxg@buaa.edu.cn
Keywords: CTCS; Railway visualization; Meta-model; Multi-resolution; XML
Abstract.
According to the different requirement of simulation, the visual resolution of scene model should be different, which can save a lot of manpower, money and material, meanwhile assure the reliability of visualization.
Acknowledgement This work is supported by the Science and Technology on Avionics Integration Laboratory and the Aviation Science Foundation of China (20115551025), the Natural Science Foundation of China (31170895).
Tiedao Xuebao/Journal of the China Railway Society, 2009, 31(3): 107-110
Beijing, Science Press, 2008
According to the different requirement of simulation, the visual resolution of scene model should be different, which can save a lot of manpower, money and material, meanwhile assure the reliability of visualization.
Acknowledgement This work is supported by the Science and Technology on Avionics Integration Laboratory and the Aviation Science Foundation of China (20115551025), the Natural Science Foundation of China (31170895).
Tiedao Xuebao/Journal of the China Railway Society, 2009, 31(3): 107-110
Beijing, Science Press, 2008
Online since: December 2014
Authors: Sergey Nikolskiy, Olga Pertseva
Features of Low Temperature Effect upon Strength of Enclosing Rock and Kimberlite in the “Udachnaya” Pipe (2005) Journal of Mining Science, Vol. 41, No. 2, pp 119-122, Russia
[5].
Vodostojkost' silikatnogo kirpicha (2013) Construction Materials, (9), pp. 10-12
Synergism of nanostructuring cement binders and reinforcing fibre (2007) Construction and Building Materials, 5(5)
Utilization of composite materials in saddle-shaped cable roofs (2000) Mechanikcs of composite materials, 36(5), pp. 385-388
‘Prognozirovanie morozostojkosti betona’ (2003) Construction Materials, (11), pp. 28-30
Vodostojkost' silikatnogo kirpicha (2013) Construction Materials, (9), pp. 10-12
Synergism of nanostructuring cement binders and reinforcing fibre (2007) Construction and Building Materials, 5(5)
Utilization of composite materials in saddle-shaped cable roofs (2000) Mechanikcs of composite materials, 36(5), pp. 385-388
‘Prognozirovanie morozostojkosti betona’ (2003) Construction Materials, (11), pp. 28-30
Online since: June 2014
Authors: Zhi Rong Zheng, Chao Yang Feng, Sheng Xing Ye, Zhao Yan Diao, Shi Hai Lv
The pressures and countermeasures of grassland biodiversity conservation in northern China
Zhirong Zheng1,2,a, Chaoyang Feng2b, Shengxing Ye 2,c , Zhaoyan Diao2d and Shihai Lv*2,e
1 Department of Plant Biology and Ecology, College of Life Science, Nankai University, Tianjin300071, China
2 State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing100012, China
azhengzhir08@163.com, bfengcy@craes.org.cn, cysx001@gmail.com, ddiaozhy@126.com, elv_sh@craes.org.cn*
Keywords: grassland biodiversity, human interferences, climate change, countermeasure.
However, with the growth of plants and natural factors change, the contradiction between supply and demand of water in sandy grassland caused increasingly evident "self-thinning" phenomenon [6], which not only wasted a lot of manpower, material and financial resources, but also caused certain ecological damage.
Acknowledgements This study was supported by National science and technology programme (2012BAC01B08 ) and Reform initial projects of Chinese Research Academy of Environmental Sciences (No. 2013-YSGQ-06).
Journal of Arid Land Resources and Environment.
Inner Mongolia Forestry Science and Technology.
However, with the growth of plants and natural factors change, the contradiction between supply and demand of water in sandy grassland caused increasingly evident "self-thinning" phenomenon [6], which not only wasted a lot of manpower, material and financial resources, but also caused certain ecological damage.
Acknowledgements This study was supported by National science and technology programme (2012BAC01B08 ) and Reform initial projects of Chinese Research Academy of Environmental Sciences (No. 2013-YSGQ-06).
Journal of Arid Land Resources and Environment.
Inner Mongolia Forestry Science and Technology.
Online since: September 2011
Authors: Hong Fei Zhan, Lei Chen, Chen Jian Lei, Jun He Yu, Zhong Ren Jiang
This material is also based upon work funded by Zhejiang Provincial Natural Science Foundation of China under Grant No.
Xu: Intelligence Journal, Vol.6 (2003) No.6, pp.665-670
Tan: Science and Scientific Technology Management, Vol.8 (2005) No.1, pp.26-28
Yu: Science Progress and Policy, Vol.1 (2010) No.1, pp.85-88
Stefan: Electronic Notes in Theoretical Computer Science.
Xu: Intelligence Journal, Vol.6 (2003) No.6, pp.665-670
Tan: Science and Scientific Technology Management, Vol.8 (2005) No.1, pp.26-28
Yu: Science Progress and Policy, Vol.1 (2010) No.1, pp.85-88
Stefan: Electronic Notes in Theoretical Computer Science.
Online since: August 2013
Authors: Zhen Yu Liu, Ji You
Research on the 6DOF Robot Simulation and Modeling
Zhenyu Liu 1,a, Ji You 2,b
1 School of Information Science and Engineering, Shenyang University of Technology, Shenyang, Liaoning, China
2 School of Information Science and Engineering, Shenyang University of Technology, Shenyang, Liaoning, China
aliu_zhenyu0419@sina.com, byouyoujiji@126.com
Keywords: Visualization simulation; Robot modeling; Environmental modeling; Method of voxel constructor; Robot palletizing
Abstract.
By packing the single material through the mechanical arm, it can pallet in narrow space, transport easily, improve production efficiency, universality.
Acknowledgements This work was financially supported by Shenyang Industrial Technology Research Project (F12-010-2-00) and Science and Technology Research Leading Project on Ministry of Education (211037).
Journal of system simulation platform of reconfigurable planetary robot, 17 (4): 885-888(In Chinese) [3] Haipeng Wang, Nuo Li, Xinyu Fang, Hofschulte, J.
Instrument Science and Engineering Department of Southeast University, Nanjing 210096(In Chinese)
By packing the single material through the mechanical arm, it can pallet in narrow space, transport easily, improve production efficiency, universality.
Acknowledgements This work was financially supported by Shenyang Industrial Technology Research Project (F12-010-2-00) and Science and Technology Research Leading Project on Ministry of Education (211037).
Journal of system simulation platform of reconfigurable planetary robot, 17 (4): 885-888(In Chinese) [3] Haipeng Wang, Nuo Li, Xinyu Fang, Hofschulte, J.
Instrument Science and Engineering Department of Southeast University, Nanjing 210096(In Chinese)
Online since: February 2020
Authors: Muhammad Rubayat Bin Shahadat, A.K.M.M. Morshed
Sarı, “Form-stable paraffin/high density polyethylene composites as solid–liquid phase change material for thermal energy storage: preparation and thermal properties”.
Mehling, “Review on thermal energy storage with phase change: materials, heat transfer analysis and applications.”
Lennard-Jones fluid”, Journal of Chemical Physics, vol. 109 (1998) 8451–8462
Wang, “A molecular dynamics investigation on evaporation of thin liquid films,” International Journal of Heat and Mass Transfer, vol. 55(4) (2012), 1218–1225
Garrison, “Explosive Boiling of Water Films Adjacent to Heated Surfaces: A Microscopic Description”, Journal of Physical Chemistry, vol. 105 (2001) 82001
Mehling, “Review on thermal energy storage with phase change: materials, heat transfer analysis and applications.”
Lennard-Jones fluid”, Journal of Chemical Physics, vol. 109 (1998) 8451–8462
Wang, “A molecular dynamics investigation on evaporation of thin liquid films,” International Journal of Heat and Mass Transfer, vol. 55(4) (2012), 1218–1225
Garrison, “Explosive Boiling of Water Films Adjacent to Heated Surfaces: A Microscopic Description”, Journal of Physical Chemistry, vol. 105 (2001) 82001
Online since: September 2011
Authors: Hua Bin Wen, Yu Lin Zhan, Hai Bo Liu
Different tests use different configuration materials, which make the falling section of the curves different.
According to test results, the basic mechanical properties of steel materials are shown in table 1, basic mechanical properties of C80 concrete are shown in table 2.
After the material reaches peak stress, it is regarded as an ideal plastic material, the maximum compressive strain of high strength concrete is 0.0033 and the maximum compressive strain of steel fiber concrete is 0.004.
Beijing: Science Press, 2004 [3] S.
PCI Journal,Nov.
According to test results, the basic mechanical properties of steel materials are shown in table 1, basic mechanical properties of C80 concrete are shown in table 2.
After the material reaches peak stress, it is regarded as an ideal plastic material, the maximum compressive strain of high strength concrete is 0.0033 and the maximum compressive strain of steel fiber concrete is 0.004.
Beijing: Science Press, 2004 [3] S.
PCI Journal,Nov.
Online since: March 2023
Authors: Baghdadi Chouial, Kenza Kamli, Zakaria Hadef, Beddiaf Zaidi, Salim Boulkhessaim
Yuan, Facile fabrication of SnS quantum dots for photoreduction of aqueous Cr(VI), Materials Letters 185 (2016) 303–306
Sun,Visible-light photocatalytic reduction of carbon dioxide over SnS, Materials Letters 174 (2016) 238–241
Jaber, Structural and optical characterization of V- and W-doped SnS2 thin films prepared by spray pyrolysis, Materials Science in Semiconductor Processing 38 (2015) 81–86
New Technology and Materials 4 (2014)106-111
Seal, One dimensional nanostructured materials , Prog.
Sun,Visible-light photocatalytic reduction of carbon dioxide over SnS, Materials Letters 174 (2016) 238–241
Jaber, Structural and optical characterization of V- and W-doped SnS2 thin films prepared by spray pyrolysis, Materials Science in Semiconductor Processing 38 (2015) 81–86
New Technology and Materials 4 (2014)106-111
Seal, One dimensional nanostructured materials , Prog.
Online since: September 2003
Authors: Cheng Yong Wang, C. Rolf
Citation & Key Engineering Materials Vols
Schwartz: Advances in Ultra Hard Materials Application Technology Vol. 2 (1982), p. 127 [10] H.H.
Clausen: International Journal of Machine Tools and Manufacture Vol. 42(9) (2002), p. 1045 [16] R.
Clausen: International Journal of Machine Tools and Manufacture (to be published) [21] M.
Clausen: Key Engineering Materials Vol. 202-203 (2001), p. 61 [25] R.
Schwartz: Advances in Ultra Hard Materials Application Technology Vol. 2 (1982), p. 127 [10] H.H.
Clausen: International Journal of Machine Tools and Manufacture Vol. 42(9) (2002), p. 1045 [16] R.
Clausen: International Journal of Machine Tools and Manufacture (to be published) [21] M.
Clausen: Key Engineering Materials Vol. 202-203 (2001), p. 61 [25] R.