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Based on the open excavation area from Yulu Station to Wulidian Station in Chongqing subway circle lines, the finite element software Ansys was used to establish three-dimensioned model to calculate and analyze the mechanical characteristic of the pile-support supporting.
The choice of supporting schemes directly affects the size of this change.
Vertical spacing is 4.3 m and the second layer and third layer is 4.5m. 2 The finite element model analysis 2.1 calculation model In order to analyze the mechanical characteristics of supporting structure during the process of excavation, finite element software Ansys to establish three-dimensional model(Fig.1,Fig.2) is used based on the size of the support and surrounding rock pile, plate, and such factors as the position of the mutual relationship.
Table1 Material physical and mechanical parameters Item Backfill Mudstone Concrete Support Specific weight γ (kN/m3) 20 22 2500 7850 Internal friction angle φ (°) 28 35 —— —— Cohesion C (kPa) 28 500 —— —— Elasticity modulus E (MPa) 17 2000 30000 210000 Poisson ratio μ 0.35 0.23 0.2 0.2 Simulating the construction steps are as follows: 1) The initial ground stress field calculation. 2) The pile and plate construction simulation. 3) The installation of support and foundation pit excavation simulation. 2.3 The calculation results Through software, simulate internal force change of pile and support in the process of tunnel layering excavation.
Fig.6 Support Axial Stress Broken Line Graph 3 Conclusions By finite element software ANSYS, analyze the properties change of supporting structure in the open cutting area and the conclusions are as follows: 1) During the tunnel construction, supports provide a good supporting effect and the supports stress conforms to the use requirements.

Sandwich composite laminates have excellent mechanical properties, which present great application potential.
Sometimes, small damage is even invisible, but residual strength after damage is affected greatly.
Regarding low velocity impact problems, Hosur[2] investigated impact properties of a foam filled 3-D integrated core sandwich composite laminates, and analyzed impact load-time-energy history curve in detail.
The damage processes and factors which effect residual strength were analyzed.
Experimental Investigation of the Impact Mechanical Properties of Polyurethane Rigid (PUR) Foam Plastics [J].

For optical surfaces, the surfaces roughness is an important indicators; it has a lasting effect on optical, mechanical and electronic properties.
Since the angle of incidence is changeable and the substrate materials have different properties, and will vary with the angle and the substrate materials.
Although Sigmund theory has considered many factors, it is appropriate for the amorphous and polycrystalline materials.
and are the main parameters because they will directly affect the surface quality.
is one controlling factor for direction of ripple when the . 5.

The fuel slosh dynamics is modeled using its pendulum analogs mechanical system which parameters are identified using the Kalman filter technique.
The results obtained show that the internal fluid and material properties have a significant influence on the vibration characteristics of the shell.
The behavior of vertical conveyors under periodic loads is an important problem which can be significantly affected by non-ideal excitation.
Müller et al. investigate the fatigue potential due to electrical and mechanical loads of electronic components of forklift trucks.
Comfort is an important topic in the elevator industry, and among the different factors which affect it, vibration in the car is one of the most important.

Effect of Oxygen Content on Thermoelectric Properties of Sintered Bi-Te Based Compounds D.
Effects of oxygen content on the thermoelectric properties of Bi2Te2.7Se0.3 compounds have been investigated.
On the other hand, Bi2Te3 thermoelectric semiconductor fabricated by powder metallurgy shows excellent mechanical property, but its thermoelectric properties are inferior to those of ingot, and are greatly affected by fabrication parameter.
It has been reported that those factors such as powder oxidization, the vaporization of component element 2) and point defect caused by plastic deformation change the carrier concentration of thermoelectric materials. 3, 4) In this study, we will examine the effect of H2 reduction on oxygen contents, and investigate the effect of oxygen on thermoelectric properties of sintered compounds by spark plasma sintering.
Thermoelectric properties and oxygen contents with various pulverizing conditions.

In the long term of vehicle service period, the environmental factors have significant influences on the adhesively bonded joint service performance, such as temperature, moisture and corrosion, etc.
Results showed that the adhesives have different mechanical properties with temperature and the simulation predictions on the joint fracture toughness matched well with the experiment results.
The mechanical properties of Q235 steel and AA6016 aluminium alloy are shown in Table 1.
The adhesive mechanical properties, curing conditions and toughness comparison are shown in Table 2.
To understand the asymmetric effect in mechanical properties of the substrates, steel and aluminium alloy are taken as the substrate materials in each joint separately.

Artemisia sphaerocephala Krasch was random by aerial seeding on test land, and 5 observations evenly set in its community and take the average as result. 2.2.2 Root Mechanical Property Property of tensile mechanical, root-soil surface friction and root-soil composite shear were picked to evaluate soil-reinforcement ability.
We chose the accumulation roots length, represented roots deformation properties, taproots tensile strength, and lateral roots branch tensile strength to evaluate the tensile mechanical property.
Represented roots deformation properties include elastic modulus and constitutive properties.
Although tensile mechanical property was clearly better than other three plants, and the tensile mechanical property of root was the dominant factor in soil-reinforcement, but in this season wind erosion was the major erosion type.
Its root-soil surface friction property was the best, but the crisp and fragile material characteristics of root made Artemisia sphaerocephala had a poor tensile mechanical and root-soil composite shear property.

The mechanical properties and fracture properties of heavy concrete adapted from the Kuosheng nuclear power plant in Taiwan have been studied.
The buildup factors of three kinds of doses have been improved for iron contained and barium contained heavy concretes, and the leakage dose distribution outside the hutch sidewall of synchrotron radiation beamline have been discussed.
The physical, mechanical, shielding properties and durability of concrete, produced with silica fume or rice husk ash as supplementary cementing materials, have been investigated.
Results show that concrete mixed with rice husk ash has higher mechanical and physical properties than that mixed without any additives, but lower properties than that is mixed with silica fume [[] K.
Results showed that firing exposure time is inversely proportional to mechanical properties of all types of concrete.

IPS e.max Press was most obviously affected by post-core materials, while Upcera Zirconia the weakest.
Noble metal alloy with excellent biocompatibility and mechanical performance, is widely applied for post-core crown or bridge.
Light-cured composite resin has excellent property and has become the substitute for metal prosthesis.
Therefore, it is an important factor of selecting an optimum post-core to accurately reproduce the color of natural tooth.
So, the overall color of Zirconia is less affected by background.

Electrodeposited coating of Mn or Mn alloys is widely used because of suitable mechanical and physical properties, good sacrificial corrosion protection and low redox potential [3].
Another parameter affecting the grain size is nucleation energy barrier that is inversely proportional to the additional potential.
In fact, the variation of the current densities led to the formation of various grain sizes due to the competition between aforementioned factors.
The films were significantly affected by current density.
Spyrellis, Effect of pulse electrodeposition parameters on the properties of Ni/nano-SiC composites, 254 (2008) Appl.