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Recently, the similar materials are used to do the experiment both at home and abroad, yet it can't reflect the original nature and others of rock fissure in original rock mass.
Since the similar material are made of synthetic materials，it cannot reflect the original rock nature-like fissure and mechanical properties and so on.
Laboratory model test In this experiment, collected one large size of undisturbed sample of Tertiary mudstone from one project in Nanning, Guangxi,China, which is used as materials of laboratory model test of surrounding rock in underground tunnel.
References [1] Griggs D T.Creep of rocks [J].Journal of Geol.,1939,47:22-25
[4] WEI Si-jiang ,MA J ian-hong ,SUN Guang–zhong.Study on creep characters of anchorage body in soft rock tunnel [J].JOURNAL OF HENAN POLYTECHN IC UN IVERSITY (NATURAL SCIENCE),2008,27(5)

Advanced Materials, 21 (2009) 4565-4583
Materials Science and Engineering: B, 213 (2016) 12-40
Computational materials science, 82 (2014) 159-164
Computational Materials Science, 49 (2010) 450-456
Materials Today: Proceedings, 3 (2016) 1820-1827

Materials Science and Technology. 33.15 (2017): 1765-1775
Journal of Astronautics. 41.6 (2020): 676.
International Journal of Fatigue. 108 (2018): 62-67
Materials & Design. 195 (2020): 108954
Journal of Mechanical Science and Technology. 32.3 (2018): 1227-1234.

This was due to at low cutting speed, with the increasing of cutting speed, the fraction between tool and work-piece and the plastic deformation of materials was raised.
Recent development in nickel-based powder superalloy used in aircraft turbines [J], Material Journal, 2002.16(11):17-19 [4] J.W.Zou, W.X.Wang, Development and application of P/M superalloy[J], Journal of Aeronautical Materials, 2006.26(3):244-249 [5] B.F.Hu, S.H.Zhang, Study on a nickel base superalloy FGH95 of turbine disc[J], Transactions of metal heat treatment, 1997.18(3):28-36 [6] S.H.Zhang, B.F.Hu, H.Y.Li, et al.
The microstructure and properties of a nickel base superalloy FGH95 [J], Journal of University of Science and Technology Beijing, 1993.15(1):1-9 [7] E.Q.Ezugwu, Z.M.Wang, A.R.Machado, The machinability of nickel-based alloys: a review [J], Journal of Materials Processing Technology, 1999.1(16):1-15 [8] S.H.Zhang, B.F.Hu, H.Y.Li, et al.
The microstrcture and properties of a nickel base superalloy FGH95 [J], Journal of University of Science and Technology Beijing, 1993.15 (1):1-9
High Temperature Oxidation Behavior and Infrared Character of a Ni-Based Superalloy K424[J], Rare Metal Materials and Engineering, 2008.37 (8):1411-1414.

Therefore, it is necessary to comprehensively consider thermal resistance, thickness and price of thermal insulation materials in improving thermal insulation and anti-radiation performances of houses, so as to select the most cost-effective thermal insulation materials of the most suitable thickness. [9] From 7th November of 2012 to 11th November of 2012, the authors investigated the market of thermal insulation materials in Changsha of Hunan Province.
Architectural Journal, 2010, 31 (3): 100-103
Journal of Xi’an University of Science and Technology, 2010, 31(3) : 25-31 [4] Li Xiaofeng.
Architectural Journal, 2005,27(7) : 6-11
Architectural Journal, 2010, 28 (3): 96-97

It demonstrates that using the decoding algorithm can improve the utilization rate of materials and make programming efficient and easy.
The optimal circular-pipes packing can save material, speed up the production efficiency, improve the material utilization and cut the cost greatly.
For example, the genetic algorithm for one-dimensional packing, the automatic layout algorithm for two-dimensional irregular parts, and related research on circular-pipes packing, Although each condition has its own characteristic and has different constraints in packing process, the common goal is to achieve the most reasonable packing plan to make the materials waste the lest.
References [1] Zhixin Jia: Journal of Computer-Aided Design & Computer Graphics, 2004, 16(7), p. 890-895 (in Chinese)
[6] Yongfu Lei, Jinghai Gong: Sichuan Building Science, 2007, 33 (6), p. 237-239(in Chinese)

Full details such as element types, contact interface and material models are given in [5].
References [1] Zhouyi Chen, Weijian Yi, Guofan Zhao, Zhengping Sha and Liyan Lin: submitted to Journal of Hunan University (Natural Sciences) (2005) [In Chinese]
[2] Yongjun Lin, Wenrang Cheng and Jie Li: submitted to Building Science Research of Sichuan (2003) [In Chinese]
Setunge: submitted to ACI Materials Journal (1996) [7] F.
PhD Dissertations, University of Canterbury, Christchurch, New Zealand, (1984) [10] Jiaru Qian, Lirong Cheng and Dongliang Zhou: submitted to Journal of Tsinghua University (Science & Technology) (2002) [In Chinese]

Ismaila: Journal of Membrane Science, Vol. 268 (2006), p. 96 [2] X.P.
Uyama: Journal Membrane Science, Vol. 55(1991), p. 119 [7] M.
Moel: Journal Polymer Science: Part B: Polymer.
Kang: Journal Membrane Science, Vol. 195 (2002), p. 103 [15] K.
Jokela, Materials Science Forum, (2002), p. 481 [16] M.

Materials today, 6(10), 22-31
Journal of Hazardous Materials, 424, 127416
Recent advances in ZnO materials and devices.
Materials science and engineering: B, 80(1-3), 383-387
Environmental applications of ZnO materials.

Hierarchical architecture of Nacre Ultra-hard intermetallic borides such as AlMgB14 belong to the class of diamond materials by offering extreme hardness, wear resistance and chemical stability [11].
As a result, new advances in the applications of ultra-hard materials for tools and bioinspired structures can be expected.
Booth: Journal of Laser Micro/Nanoengineering, 5(3) (2010), p.183 [4] P.
Zhigilei: Applied Physics A: Materials Science & Processing 79 (2004) p.1643 [15] C.
Atanasov: Journal of Physics D: Applied Physics, 37 (2004) p. 638.