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And the materials used are called geomechanics similar material.
It’s mixed by sorts of materials.
The material can be used to simulate the special mechanical behavior of rock in deep underground engineering.
Proportion of the similar material Whether the model test can reflect the prototype engineering’s mechanical response depends on the selected materials.
The suitable material should be able to reflect the mechanical behavior of prototype engineering.

Take the specialty of water supply and drainage engineering in USC for example.
Also, we have equipped some English teaching materials.
Then, we improve the teaching materials construction in the way of the combination of introducing and self-editing.
Based on the latest design codes, the two books Building Water & Wastewater Engineering and Fire Engineering, and Modern Water & Wastewater Engineering Design are edited, which analyze many design cases at home and abroad.
Furthermore, in combination with the talents training goals and the latest research achievement, we speed up the process of teaching materials construction, and carefully choose materials and update contents so that the materials can show scientific nature, advancement, theoretic nature and practicality , obey teaching rules and display remarkable regional characteristic.

Highway engineering tender price control is the maximum limit of the construction cost.
Particularly be familiar with the instructions to bidders in the tender documents, the terms of the contract, bill of quantities and the relevant content in reference materials.
Master the real price of labor, materials, equipment of the project location, investigate the material distribution to determine the ex-factory price, distance, freight, etc., research development trend of the market inflation, where the project is located, determine the cost of risk.
Summary Key factors of the compilation of bidding price control is verifying of engineering quantity of construction drawing on the basis of fully familiar with drawings, determining the feasible construction scheme, considering its consists of several quotas of a bill of quantities, determining the reasonable price of labor, material, machine.
Beijing: China building materials industry press, 2010.

The two methods are being used at the macro-level and civil engineering.
Sahely （2005）pointed out it is important to take the system method to define the impact of engineering activity on environment, so that the concept of engineering integrality is put forward.
Key Performance Indicators (KPIs) for Sustainable Infrastructure Key Performance Indicators ( KPIs) for Sustainable infrastructure in China Every type of infrastructure (e.g., communication engineering, pipeline engineering, transportation irrigation engineering) has its characteristics so that the indicator could be researched in two parts, one is the general indicator, and the other is special indicator that can be used to describe the specific principle of the project.
One is to take the civil engineering project as a part of an economic system.
[7] Shu-Li Huang, Wan-Lin Hsu, Materials flow analysis and emergy evaluation of Taipei’s urban construction，Landscape and Urban Planning，63 (2)( H2003)： 61~74

Key Engineering Materials Vol. 48

Grain boundary engineering has been applied to different materials in order to increase properties particularly sensitive to intergranular phenomena.
In this work, different approaches were used in order to perform grain boundary engineering in low to medium stacking fault energy FCC materials.
Woodord: Grain Boundaries in Engineering Materials (Metallurgical Society of AIME, 1974)
Palumbo: Materials Science and Engineering, A237 (1997), p. 168-172
Palumbo: Materials Science and Engineering A, Vol.

Determination of Capto C5 shank’s key dimensions Shi Xiang-yun1,a ，Jiang Hong2 ，Zhou Hong-da1 ，Wang Shu-lin1,b 1School of mechanical engineering, Jiangsu University, Jiangsu Zhenjiang，China 2Jingdezhen product quality supervision and inspection institution，Jingdezhen，China asxyun1988@163.com, bwangsl@ujs.edu.cn Key words: Capto shank; Key dimension; Finite element; Radial stiffness Abstract: Capto shank is widely used in high speed machining, especially in Turning/Milling center.
CTETRA(10) element is chosen in the model. 40CrNi2Mo (material mark: AISI4340) is chosen as the material of shank and spindle.
So taper of shank is one of our key dimensions.
It could achieve non-slipping torque transmission without driving key and eliminate the dynamical balancing problem because of driving key and key way.
Then e is one of the key dimensions that we want to find.

Overview of Rapid Prototyping for Fabrication of Bone Tissue Engineering Scaffold Yunfeng Liu1, a, Xingtao Dong1, b and Fudong Zhu2, c 1 The MOE Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Zhejiang University of Technology, Hangzhou 310032, China 2 The Affiliated Stomatology Hospital, College of Medicine, Zhejiang University, Hangzhou 310006, China a liuyf76@126.com, bamt@zjut.edu.cn, czfd@zju.edu.cn Keywords: Rapid prototyping, Bone tissue engineering, Scaffold, Bio-material Abstract.
Conclusions Scaffolds, as a key element of BTE, have acquired much attention from fields of bioengineering and mechanical engineering recent years.
Lin: Materials Science and Engineering C, Vol. 28 (2008), p. 51-56 [11] L.
Chua: Tissue Engineering, Vol. 8 (2002), p. 1-11 [19] K.F.
Grimm, et al: Journal of Materials Science: Materials in Medicine, Vol. 18 (2007), p. 906-916

Effect of some key factors on the strength of recycled concrete Xuebing Zhang1,2,a, Zhi Fang1,b 1 College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China 2 College of Civil Engineering & Mechanics, Xiangtan University, Xiangtan 411105, Hunan, China azhangxb00@163.com, bfangzhi@hnu.cn Key words: recycled concrete; compressive strength; split-tension strength; key factors Abstract: Because there exists a used cement mortar layer outside the recycled aggregate, there are more interfaces inside recycled concrete, which would result in recycled concrete has different properties from ordinary concrete.
Cement Using the Panfeng Brand 32.5 and 42.5 grade silicate cement produced by Hunan Xiangxiang Building Materials Industry.
But in actual engineering, the sand ratio can’t be much little.
[5] Jiabin Li, Jianzhuang Xiao, Jian Huang: Journal of Building Materials Vol. 9 (2006), p. 297-301, in Chinese
[14] Xiaoming Huang, Ganghua Pan, Yongli Zhao: Civil Engineering Materials (Southeast University Press, Jiangsu 2001), in Chinese.

Introduction With the improvement of cable properties, progress of method and prestressed construction technology, prestressed steel structure has become one of the most dynamic and potential structural system in modern structural engineering.
The shape of top steel beam is H-shaped, Q345B; the shape of brace rod is circle steel pipe, Q235B; the material of lower cable is two 55round wire.
Assuming that materials are ideal elastic-plastic and taking the 1/400 of the string beam span as the limit maximum displacement for, the corresponding limit state equation is got as follows: (7) Where is the maximum allowable displacement, is the maximum displacement of structure in the work state, is the short span of structure.
[2] Zhihua Chen, Yang Li: International Journal of Space Structure Vol. 20 (2005) , p.115 [3] Zhansheng Liu, Zhihua Chen: Advanced Materials Research Vol. 97-101 (2010) , p. 4415 [4] S.
Kitipornchai,Wenjiang Kang,Heung-Fai Lam,F Albermani: Journal of Constructional Steel Research Vol. 61 (2005) , p.764 [5] Kawaguchi M, Abe M, Totemic I: IASS Vol. 40 (1999) , p.179 [6] Faravelli L: Journal of Engineering Mechanics Vol. l15 (1989) , p.2763