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Valley filler, formed by material after cutting mountain, is composed of gravel, sand, silty soils and clay soil.
Table 1 Calculation parameters Materials volume weight [KN/m3] elastic modulus [GPa] poisson ratio cohesion C [KPa] internal friction angle [°] surrounding rock 1 20 / 0.45 10 28 surrounding rock 2 25 3.18 0.1 1800 40 retaining wall 23 0.6 0.16 / / tunnel lining 26 50 0.17 / / Analysis of numerical simulation results.
Acknowledgements This work was financially supported by Chongqing Science and Technology Construction Program (Chengkezi 2011, 2-12) in the Chongqing Natural Science Foundation (CSTC, 2010BB0333).
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Kaczmarczyk, Investigation into the damping and stiffness characteristics of an elevator car system, Applied Mechanics and Materials, Trans Tech Publications. 24-25 (2010) 77-82
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Gefen, Role of EVA viscoelastic properties in the protective performance of a sport shoe: Computational studies, Bio-Medical Materials and Engineering 16 (2006) 289-299
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Qassem, Impulse response due to jumping on shoes of various stiffness and damping, Bio Medical Materials and Engineering 13 (2003) 167-180

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Introduction Pre-grinding system is one of the key components in the operation of cement plants which significantly promotes the energy utilization efficiency, reduces the time for the materials in the mill and makes the material particle size more uniform.
Ball Mill Elevator Bin Roller Press Feeding Circulating Fan Qualified Materials Unqualified Materials Figure 2.
The structure of Bin Weight-Keeping System (BWKS) Unqualified Materials Circulating Fan Qualified Materials Qualified Materials Elevator Classifier Ball Mill Figure 3.
Zou, “Pre-grinding technology and analysis of its application key points,” Science and Technology of Cement, no.4, pp.17-21, 2008
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Introduction Compared with traditional materials, (Fiber Glass Reinforced Plastic) FRP pipe has many significant advantages, such as excellent anticorrosion performance, high strength, lightweight, smooth interior wall and no scaling, making it widely used in fields of petroleum, chemical and water treatment.
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Appearance of the printed metal layer at different deposition modes Analysis of the Results of Experimental Studies The analysis showed that surfacing modes, characterized by unstable material transfer, lead to the appearance of defects in the material and uneven section of the layer.
Acknowledgements This work has been supported by the grants from the President of the Russian Federation to young Russian scientists-candidates of sciences No. 075-15-2020-098.
Chen, Real-time control of welding penetration during robotic GTAW dynamical process by audio sensing of arc length, The International Journal of Advanced Manufacturing Technology. 74(1-4) (2014) 235-249
Lv, Arc sound model for pulsed GTAW and recognition of different penetration states, The International Journal of Advanced Manufacturing Technology. 108 (2020) 3175-3191
Klochkova, Cyber-physical hybrid processing system digital twin, Materials Science Forum. 1037 (2021) 119-124

The resin capsules have gone through nearly half a century's history as support materials in resin bolt support system [1-3].
High-quality polyester film and nylon film were used as packaging materials to enhance safety in use process.
High-strength and low relaxation prestressing steel strands of 22mm diameter and 1´19 shares were used as cable materials, and the length of cable was 4300mm with combined anchorage of resin capsules and cement.
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EN-NAJI et al Change of experimental young’s modulus with increasing temperature for an abs material subjected to tensile test: ARPN Journal of Engineering and Applied Sciences; 2006-2019 Asian Research Publishing Network (ARPN).
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