Search results

., Kunming 650302 4 Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500 agwd63923575@163.com Keywords: Mineral Pipeline transporting; 3D monitoring; GIS system Abstract.
Acknowledgment This paper is supported by the foundation items: Science & Research Program of Yunnan province (No. 2010DH004 & No. 2011CI017 & No. 2011DA005), Foundation of Kunming University of Science and Technology (No.
Journal of hydrodynamics, 16(3):304-310(2001)
Resistance characteristics of particulate materials in pipeline hydro-transport[J].
Chinese journal of mechanical engineering, 38(10):13-16(2002)

The Research of Disaster Mechanism and Control Measures of Karst Collapse Caused by Roadbed Construction Qingguo Hua, Yong Wub and Zhongming Hec School of Traffic and Transportation Engineering, Changsha University of Science & Technology Changsha 410114, China ahuqg204@126.com, bwuyong.1178@qq.com, chezhongming45@126.com Keywords: Karst Collapse; Formation Conditions; Mechanism; Prevention Measures Abstract: Combined with practical examples of karst roadbed construction of Zhanghua highway, the article analyzes catastrophic manifestations, disaster causes and common prevention measures of karst collapse caused by roadbed construction; according to research putting forward the corresponding treatment program on engineering examples, engineering practice to good effect, showing that the proposed scheme of karst treatment is reasonable and reliable, referencing for similar projects.
Blocking method is the use of different materials to blockage shafts, sinkholes etc.
Acknowledgements This project obtained the funding of the general project of Hunan science and technology plan （2014FJ3067）and Guangxi scientific research and technological development projects(Gui branch turn 1298011-2).
Analysis of of diseases of anhydrite karst roadbed of Qinghai-Tibet Railway[J].Journal of Chinese Geological Hazards and Control .2008(01)
Analysis of disease management of highway roadbed karst[J].Chengdu University Journal(Natural Science).2012(03)

e) Mixing sand method is to do the expansive soil improvement through adding non-expansive coarse sand filling materials and so on, the main role is to change the constitutive property, particle combination of the natural or disturbed expansive soil, and make the expansive soil to become the non-swelling earth or to reduce its swell-shrink characteristics.
Simultaneously, the organic chemistry grouting material is one kind of non-toxic, tasteless, odourless liquid.
Journal of Railway Science and Engineering, Vol 2, pp.62-67, 2005(1)
[6] Tuode Li, Improvement engineering properties of expansive soil with slag composite materials.
Chinese Journal of Geotechnical Engineering, Vol 15, pp.11-13, 1993(5). 806

The material parameters Concrete and carbon fiber The concrete strength of RC beam model is C25. the T-Ⅰ- 300 CFRP cloth adopted as Reinforcing material and the matched paste resin are from HangShuo composite material Co., LTD.
All the parameters of the materials are following:(Table1) Table 1 Parameter Index of Materials material name Poisson's ratio elasticity modulus(MPa) tensile strength(MPa) Prism compressive strength(MPa) concrete 0.2 3.0×104 2.19 18.54 CFRP 0.17 2.46×105 3500 --- main reinforcement 0.3 2.10×105 369.6 --- epoxy resin --- 3.20×103 48.5 --- Constitutive relation.
The strain-stress curve of carbon CFRP materials close to ideal elastic, showed in figure 4, when the stress is larger than tensile strength of carbon fiber, think the fiber fracture.
GUANGDONG SCIENCE & TECHNOLOGY.2005
Journal of Water Resources and Architectural Engineering.2006,3.(1)

Glover [12] used carbon deposition techniques to modify Aluminophosphate molecular sieve or Mesoporous molecular sieves adsorption materials ,in order to improve the selectivity and efficiency of O2/CH4/N2 on molecular sieves.
Journal of Fuxin Mining Institute 10(3):24~28
Tezel, “Adsorption separation of N2, O2, CO2 and CH4 gases by b-zeolite”，Microporous and Mesoporous Materials, 2007, 98, 94–101
LeVan, “Carbon-silica composite adsorbent: Characterization and adsorption of light gases”，Microporous and Mesoporous Materials, 2008, 111, 1–11
Chemical Engineering Science, 2004 59: 1989-1997

., Ltd has developed a kind of modified construction materials (RK 300 for short and shown in Figure 1) which is produced by polyolefin/ethylene copolymer, compatilizer, dispersant and special modified materials with modern chemical synthesis technology [3].
The melted materials can occur chemical reaction with small molecular of asphalt binder to produce large molecular.
Considering RK300 is instead of conventional modified materials, AC-13(C) mix is chosen as they are the most widely used mixtures in the construction of upper layer for flexible pavements in China.
Lu: Materials and Structures, Vol. 28 (1995) No.3, p.139
Dong: Journal of Wuhan University of Technology, Vol.30 (2006) No.3, p.477

Each operation requires specific raw materials or components, and a group of machines are capable to perform it.
The optimality objective is to minimize the overall cost subject to various constraints, e.g. production capacity constraint, and materials and components supply constraint.
Materials and components supply constraint (8) guarantees that materials and components consumption does not violate their supply capacity.
Aghezzaf: International Journal of Production Economics Vol. 112 (2008), p. 121-137
Cao: Lecture Notes in Computer Science Vol. 3613 (2006), p. 285-294.

By creating an automatic ABAQUS analysis system and data base, the numerical calibration coefficients and residual stress directly with many parameters, kinds of materials and structures can be calculated very quickly and easily using this new inverse FEM method in this paper.
Materials Sciences Forum Vol. 347-349 (2000), p1-9
JSME International journal Vol. 43, (2000), p 367-373
Yang, Residual-stress Measurement in Orthotropic Materials Using the Hole-drilling Method.
Journal of engineering Materials and technology.

However, coal tunneling project is a complex engineering influenced by many factors, related to all aspects of personnel, equipment, materials and environment, and it has a lot of technical process, bored by the geological conditions and natural climatic conditions.
This paper combined with the actual situation of the three coal lane tunneling projects through the references and selected 16 indicators to evaluate the safety situation of the coal lane tunneling project from the quality of personnel, equipment and materials, environmental conditions, safety management.
For the quality of personnel, the reference series and compared series were listed as: ； For equipment and materials, environmental condition and safety management, the reference series and compared series were listed respectively as: ； ； ； Determine the Difference Sequence Matrix of Each Sub-set.
For the equipment and materials subset, the sort of three coal lane tunneling project is: project2> Project3> Project 1, which means that the safety situation of project2 is the optimal, Project3 is followed, and project1 is the worst.
References [1] Julong Deng:The grey theory foundation, edtied by Huazhong University of Science and Technology Press, (2002), in press(In Chinese) [2] Jun Yan, Lihui Li: submitted to Journal of Systems Engineering Theory & Practice, 2001, p.136-138(In Chinese) [3] Weidong Wu, Guoxun Jing, Jianping Wei : submitted to Journal of China Coal Society, 2001, p.290(In Chinese)

Platcheck, for example defines the eco-design as “a holistic view on that, starting from the moment when the environmental problems and its causes are known, the conception, the materials selection, the production, the use, the reuse, the recycling and final disposition of industrial products are influenced” [13, 14].
Indeed, this method is based on different quantitative environmental indicators that evaluate the environmental impact of the studied product along its life cycle, since the extraction and production of materials to the end of its life [15-19].
In addition to that, the MET-matrix (material, energy and toxicity) tool is one of the more used methods that give designers the possibility of identifying the environmental load of the materials energy and toxicity of products.
Recommender System for Personalised Wellness Therapy, International Journal of Advanced Computer Science and Applications. 4 (2013) 54-60
In Innovation strategies in environmental science, Elsevier, 2020, pp. 179-207