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Excavation affect the sunken plaza on top of the subway tunnel has been operational control within the allowable range is essential, and understanding the effect of foundation reinforcement program, to acquire all the maximum displacement after the program has been built using the foundation reinforcement subway tunnel value, and the deformation characteristics of the tunnel is also particularly important[3].
Calculating parameters of the model When simulating calculation for a single, think of surrounding rock for a single, homogeneous continuum, Its physical and mechanical properties according to sunken plaza field engineering geological investigation report and test of the measured data and combined with the relevant specification to select, model of each soil parameter selection are shown in table 1.
Adopting the construction procedure of soil-cement mixing pile reinforcement measures and the scheme 1 are almost the same, the change is to apply the corresponding unit property change of reinforced soil properties.
Comprehensive use of soil-cement mixing pile of the door and uplift pile reinforcement plan and reinforcement measures and scheme 1 are almost the same, the change is: apply the corresponding unit property change of reinforced soil properties., apply the corresponding unit property change of equivalent conversion.
But in terms of the specific circumstances of this project, only take soil-cement mixing pile reinforcement scheme of door type, vertical displacement is still too large, the reason is that, the restriction because of the upper soil modulus increase is limited, the rebound deformation of below soil layer is the decisive factors affecting tunnel service value

This paper investigates the effect of corrosion on the tensile properties of AISI 1040 steel in seawater.
However, the initial austenitic condition is important to the development of the final microstructure and its mechanical properties [11].
The rate at which austenite decomposes to form pearlite has been reported to depend on the composition of the steel, as well as on other factors such as the austenite grain size[18].
Thomas, The effect of austenitizing temperature upon the microstructure and mechanical properties of experimental Fe/Cr/C steels, Metallurgical Transactions A 10(9) (1979) 1273-1284
Packer, The effect of austenitizingtemperature on the microstructure and mechanical properties of as-quenched 4340 steel, Metallurgical Transactions A 5 (7) (1974)1663-1670

Great research efforts have been studied on the grinding performance under high-speed grinding conditions [5-10]. 40Cr steel is widely used to make some important mechanical parts such as gears and axis due to its excellent mechanical and heat treatment properties.
It is clearly drawn that depth of cut is a significant factor to affect grinding force, because the maximum undeformed thickness hmax increases under bigger depth of cut.
It is clear that depth of cut is a significant factor to affect grinding force; the decrease of grinding force is significant while depth of cut equals to 0.4mm.
London: Mechanical Eng.

The mechanical properties are as follows: Mass density: 7800kg/m3; elastic modulus: 2.02 e +11 Pa; Poisson's ratio: 0.3; yield limit: 310MPa; intensity limit: 570MPa.
Considering the dynamic load and other unknown factors, take.
Each rod bears 1/4 of the total working load, and the residual preload is taken 20% of the preload according to mechanical design theory.
It is noted that this force is the pressure, though it is big, it will not affect the fatigue life of the beam because the pressure makes the fatigue crack to close.
The stress is bending stress which seriously affect the beam lifetime, and the 1st principal stress value is about 120 MPa.

The physical and chemical properties of mustard oil are investigated.
However, the detoriating petroleum reserves and the damaging environment have made the scientists to look out for alternative fuels for the diesel engine without affecting its fuel economy.
Variation of Smoke emission with loads Hydrocarbons The emission of Hydrocarbon in the diesel engines is due to factors such as, wall deposit absorption, oil film absorption and crevice volume etc.
After determining its properties, by varying the compression ratio, its emission characteristics were studied in the internal combustion engine.
Srinivasa Rao, Performance and emissions of C.I.engine using blends of biodiesel and diesel at different injection pressures, International journal of applied research in mechanical engineering. 2(2012) 2231-5950

These various properties of materials component contribute to the complex mechanical behavior of HMA, which can be characterized as viscoelasticity, and plastic under different condition such as temperature, load application and aging [14, 15].
Thus the mechanical behavior of hot mix asphalt should be understood by not only the individual properties of HMA components, but also by considering asphalt binder and aggregate acting together.
Voller, Consideration of hot-mix asphalt thermal properties during compaction, in: D.S.
Luca, Effect of aggregate type, gradation, and compaction level on thermal properties of hot-mix asphalts, Canadian Journal of Civil Engineering, 33 (2006) 1410-1417
Khodaii, Comparing factors aftecting resilient modulus in asphalt mixtures, Transaction A: Civil Engineering, 16 (2009) 367-375

In the recent years, the studies on the mechanical behaviors of various materials subjected to biaxial loading have been worked since they are more complicated and intrinsically different from those under the simple uniaxial condition.
For example, the solutions using purely elastic formulations involving the crack tip stress intensity factors are not theoretically affected by the lateral stress component [1,2].
But, it has been widely verified that biaxial stresses affect the behaviors such as the direction of crack propagation [3,4], the fracture toughness or breaking strength [4, 5], and the fatigue crack growth rate [5, 7].
The size of the specimen should be large enough to minimize boundary effects on crack tip stress intensity factor; but it should not be too large, so that the required load levels can be kept within the capacity of the testing machine. 2.
Its physical properties are that f=6.993 kN/m, E=2.5GPa and =ν 0.38, where E and ν are Young's modulus and poisson's ratio, respectively.

Because of different physical and mechanical properties, material removal mechanisms of the three kinds of engineering ceramics present different characteristics, which lead to the different surface roughness even though under the same lapping conditions.
On the other hand, the mechanical properties of workpiece materials also have important influences on the surface quality [7].
The properties of test materials are listed in Table2.
Single factor test method is used in the research.
From this, the structure and mechanical properties of material have an import effect on lapped surface, even over the effect of lapping parameters.

Several authors studied the effects of the process parameters on the quality of the joints in terms of both metallurgical and mechanical properties.
In [10] the mechanical properties and the microstructure of mild still joints were analyzed as a function of toll rotational speed.
The mechanical properties of the welded joints were investigated along a direction orthogonal with respect to the overlapping line.
Conclusive remarks A preliminary analysis of the mechanical properties of friction stir spot welded butt joints was carried out in this study.
The effect of tool rotational speed on both welding forces and mechanical properties of the joints was investigated.

Introduction The layer deposition property of coal-bearing strata is the main cause that the roof of the mined-out areas displays the layered structural characteristic.
Some scholars carried out many tests to study the mechanical properties of the layered rock [6-7], and some scholars regarded the roof of the mined-out areas as an elastic rock beam to do the mechanical analysis [8-9].
To the quantitative evaluation method and the influencing factors of the safety thickness of the roof in the mined-out areas, foreign scholars had also done a lot of meaningful work, many new theories and methods were introduced to predict the safety thickness of the layered roof [10-12].
In order to reflect the mechanical response characteristics under different conditions, these contrastive analysis schemes of the simulation calculation were listed in Table 2.
Scheme Fixed factors Variation factors Notes 1 θ=0°, c=10 kPa, λ=0 w: 6 m, 8m, 10m,12m w is the mining width; θ is the dip angle of coal seam; c is the cohesion of the layered roof; λ is the lateral pressure coefficient, amely the ratio of horizontal stress and vertical stress 2 w=8 m, θ=0°, c=10 kPa λ: 0.5, 0.75, 1.0, 1.25,1.75 3 w=8 m, θ=0°, λ=0 c : 0 kPa, 40 kPa, 70 kPa, 100 kPa 4 w=10 m, λ=0, c=10 kPa θ : 0°, 15°, 30°, 45°, 60° Calculation Results and Discussion Separation Analysis with Different Mining Width.