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Double-row piles retaining structure has been widely used in the project now, but the stress mechanism of double-row pile is more complex; Its internal force and deformation are affected by many factors.
However, the stress mechanism of double-row pile is more complex; Its internal force and deformation are affected by many factors and the design calculation method is not mature enough yet.This paper takes the Jinan Cultural Arts Center(Theatre) stage bin foundation pit as an example, by analysing double-row pile retaining structure including the internal force, deformation and overall stability and so on, through theoretical calculation, the soil test and the analysis of field measured data, to analyse the main effects of optimization design about double-pile supporting structure.
The influence of CFG composite foundation on stability of the pit sidewall mainly displays in the following three aspects: (1) The higher replacement rate of pile-soil area changes the properties of original soil around the foundation pit, from originally pure soil to pile-soil complex, which effectively improving the physical and mechanical indexes of the soil
Deep foundation pit is three dimensional space structure with the size of long, wide and deep, so whose supporting system design is a complex three-dimensional mechanical problem.
(5) In the foundation pit supporting design, especially row pile supporting design, pile-beam coordination effect and the space effect of foundation pit are two important factors which should not be ignored, which provide favorable conditions for the security reserves of supporting structure.

The chemical structure, thermal properties and hydrophilic performance of the copolymers were respectively characterized.
The chemical nature and incompatibility of these segments are the important factors of the properties of the poly(ether ester) elastomers.
PEG was considered to fully react in almost all works, which has developed the mechanical property, thermal property, ageing-resistant performance and chemical resistance of the copolymers[14-16].
Thermal properties was reduced when decreasing the molecular weight of PEG unit as it increased the irregularity of molecular chains[19].
Factors affecting weathering of a polyether–polyester elastomer, Polym.Degrad.

Low Energy High Current Pulsed Electron Beam (LEHCPEB) Treatment: an Effective Way for Improving Surface Microstructure and Properties T.
This is particularly true for tribological [2,4] and corrosion properties [5-7].
The surface properties revealed in Fig. 1 must be determined by the final structure-phase states generated by the LEHCPEB thermo-mechanical treatment.
The more advanced dissolution process of the carbides [16], together with the ultra fine grain size of the matrix grains [14, 19] are considered to be important factors for the stabilization of the γ phase.
This layer can improve drastically the corrosion properties.

The road surface was assumed to be random, stationary, Gaussian and centered function i.e. all its statistical properties did not vary with any change of the argument time t, the law of distribution of variable X(t) was a Gaussian law, and the average of X(t) for any t, pertaining to [0, T], was null.
In this work, the numerical value of this factor was estimated to be 0.025 for a maximum force of 5056 N [5].
The field of high strain may affect the natural frequency of a mechanical part with change in shape and increase in the density of dislocations that can affect the rigidity of the structure which is again related to the eigen modes.
The field of the high strain significantly affects the natural frequency of the mechanical part.
The field of high strain can affect the natural frequency of a mechanical part and is influenced by change of shape and increase in the density of dislocations that can affect the rigidity of the structure which is in turn related to the eigen modes.

The ultra-fine grained (UFG) materials have been widely investigated due to their mechanical properties such as super high strength and super high plasticity.
It will greatly affect the extrusion process when processing parameter changed such as die geometrical parameters and friction condition.
Introduction The ultra-fine grained (UFG) materials have been widely investigated due to their mechanical properties such as super high strength and super high plasticity.
It will greatly affect the extrusion process when processing parameter changed such as die geometrical parameters and friction condition.
Friction condition is a disadvantageous factor during ECAP process and the die channel should be lubricated as good as possible in the pressing.

Their physical and chemical properties were analyzed.
Introduction Enameling of metals is a widespread method of protecting metal products from corrosion and giving them certain technical and operational properties.
For enameled products, especially for household purposes, not only physical, mechanical and chemical, but also aesthetic-consumer properties are extremely important. [1] In the market of consumer goods, the most popular products are those with white coating.
Thus, analyzing the compositions of synthesized enamels and their aesthetic-consumer properties, it can be concluded that white coatings with a yellow hue have a greater diffuse reflection coefficient than with a blue hue, and these optical properties are affected not by the presence of coloring impurity compounds and the presence of rutile or anatase form of titanium dioxide, but the nature and intensity of the TiO2 crystallization process.
Enamelling of metal products, Mechanical Engineering, 1972

Then, the samples were subjected to quasi-static tensile tests at elevated temperatures, including 25°C (RT), 75, 100, 125, 150 and 175°C, to measure their mechanical properties.
Introduction Recently, APC-2 composites have been selected as one of the best candidates for advanced and high performance aerospace engineering and structural applications, because of their superior mechanical properties, high resistance to severe environmental condition and delamination, good damage tolerance, and high impact toughness, especially at high temperature, [1].
Also, the elevation of service temperature can deteriorate the material properties.
(ed.), Mechanical Properties and Morphology of Poly (Etheretherketone), Toughened Composites, ASTM STP 937 (1987), American Society for Testing and Materials, Philadelphia, pp.342-357
Chen, "Mechanical Properties in Notched AS-4/PEEK APC-2 Composite Laminates at Elevated Temperature", Journal of Composite Materials, Vol. 40 (2006), No. 11, pp.955-969

Abstract:-The high-performance solid propellants play very important role in defense industry, which required highly energetic binders with good mechanical properties.
Introduction: Polyurethane elastomers are widely used engineering materials and are well known for their outstanding mechanical, thermal and adhesive properties, having broad range of applications like water permeability, low temperature resistance and in composite propellant manufacturing technology.
In addition to its application, kinetics of its polymerization, structure of its ingredients i.e. isocyanates or alcohols, are an important factors to affect the polyurethane formation [1-3].
Although GAP is unique energetic binder with positive heat of formation (+117.2 kJ.mol-1), high density, but shows inferior mechanical behavior due to poor flexibility of backbone, While HTPB exhibits high flexibility, low glass transition temperature with superior mechanical properties [10].The target goal is to develop the Interpenetrating polymer network (IPN) of GAP and HTPB with improved Mechanical properties for the composite solid rocket propellant, a comprehensive study regarding reaction conditions like temperature and concentration of the catalyst for curing is required.
Activation energy for the reaction between GAP-IPDI and HTPB-IPDI can be determined by using the Arrhenius equation which is as given below: K= Ae - Ea/RT (1) Where, k is the rate constant; Ea is the activation energy; T is the absolute temperature in Kelvin; A is known as pre-exponential factor and R is gas constant.

According to survey data, the soil properties and the thickness of each layer have little change, in order to facilitate modeling, without the circumstances of affecting the accuracy, the soil levels have been taken as planar, model has been shown in Figure 2.
Determination of Calculation Correction Factor.
Conclusion As very different nature of the soft soil, there are different factors under different projects, the model presented in this paper still need to be tested by engineering practice and the model parameters need to be appropriately amended according to the different soil of different areas in different engineering application.
(2) Riprap embankment construction should be compacted as necessary, so that there is relative density of stone to reduce uneven settlement over time, so as not to inconvenience of follow-up construction and affecting the quality of the road
References [1] Xiang Xianchao, Hou Jianshu, Zhu Changqi: Consolidation Deformation Properties of Silt Roadbed under Effect of Tide[J].

Experimental research was done to examine the impact of the magnitude of vibration and discharge circumstances on the output properties [3].
Tool wear rate (TWR), Surface finish (SF), and the rate of material removal (MRR) were the three response factors that were changed.
Besides to being helpful in wire EDM cutting narrow slots and high aspect ratios, Ultrasonic aided EDM can also be used in the machining of massive 3D structures employing traditional EDM die-sinking. 1.3 Merits of EDM Following are the merits of Electro discharge machining (i) Instead of its mechanical qualities, the workpiece material's thermal properties are the main reason for material removal in the spark erosion process.
The impact of input parameters and different machining/optimization processes on significant machining factors as MRR, surface roughness, micro hardness, overcut, and tool wear rate have been well reviewed in the literature.
Suzuki (2013).Improvement of EDM properties of PCD with electrode vibrated by ultrasonic transducer.