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Aiming at the large amount of highly weathered soft rock along Shiyan-Tianshui superhighway, the physical and mechanical properties of the natural soft rock is analyzed.
Most of the studies focus on the mechanical properties and the construction characteristics of soft rock as filling material.
Physical properties and mechanical properties of the natural soft rock Composition analysis of minerals.
Comprehensively considering the economy and design factors etc, 5% cement should be mixed into the soft rock.
Experimental research on the softening of mechanical properties of saturated soft rocks and application [J].

Electrochemical hydrogen charging affected the native passive layer.
Introduction The influence of hydrogen on the microstructure and mechanical properties [1] of duplex stainless steels (DSS) constructions is still being discussed.
It is still uncertain which factors are crucial in the development of hydrogen degradation.
Interactions of hydrogen in passive films may enhance the susceptibility to environmental degradation of stainless steels, because hydrogen entering into steel affects its electrochemical properties.
Charles, Super duplex stainless steels: Structure and properties, Duplex Stainless Steels '91, Les Editions de Physique, Beaune, France 1991, 211-215

Corrosion resistance is an important property that could be affected by the ageing process.
This change in the microstructure can significantly affect the mechanical properties of the alloys.
The implication of the results is that both yield strength and corrosion resistance are controlled by the same microstructural factors.
Combined influence Therefore, there are two contradictory tendencies affecting the corrosion resistance during ageing.
[3] O.Lunder, J.E.Lein, T.K.Aune, and K.Nisancioglu, Corrosion, 45 (9): 741-748 (1989) [4] C.Suman, "The Effects of Direct Aging on Mechanical Properties and Corrosion Resistance of Diecast Magnesium Alloys AZ91D and AM60B", SAE Transactions, Vol.99, No.Sect.5 :849-859 (1990) [5] G.

Weathering means the effect of factors such as sun radiation, heat, moisture, and pollution on the different properties of matters[1].
Density, the size of particles, and the structural characteristics of carbon black affect the mechanical properties and the stability against heat and light of the parts.
In this study, the effect of Carbon Black on the mechanical properties of LDPE films which are exposed to the artificial weathering is studied.
Salem: Mechanical Properties of UV-Irradiated Low-Density polyethylene Films Formulated With Carbon Black and Titanium Dioxide.
[4] Sampers J.: Importance of weathering factors other than UV radiation and temperature in outdoor exposure.

It is known that the level of adhesion between the fiber and the matrix is ​​an important factor affecting the mechanical properties of a composite material.
The fiber / matrix interface is strongly related to the structure and properties of composites.
Introduction There are several models on the relationship structures and properties of the composite fiber / matrix interface [1].
Ko et al. [6] use dynamic mechanical analysis (DMA) to observe changes in interfacial properties fiber / epoxy.
The adhesion is not an intrinsic property but depends on several factors such as interfacial energy, the energy dissipation during test and during the deformation of materials, internal stresses, and the geometry of the samples.

An experimental correlation was developed to describe the relationship among the relative overall thermal resistance and the relative thermophysical properties.
(6) On the basis of above analysis, it is likely that the surface tension σ, the viscosity μ and the latent heat of vaporization γ may be major factors that affect above forces and thus the thermal performance of FCLPHP.
The overall resistance and the thermophysical properties of the working fluid changed with the heat load.
In order to analyze the impact of these thermophysical properties on thermal performance in detail, a sensitivity analysis was performed.
(3)The surface tension, viscosity and latent heat of evaporation were found to be the main properties which affect above forces and thus the thermal performance of FCLPHP

For inkjet printing, the viscosity and surface tension of ink are major factors that affect the quality of ink-jet printing.
In ink-jet printing, the viscosity and surface tension are main factors that affect printing quality.
Surface tension is an important performance affects the quality of ink-jet printing.
Viscosity is another one of the important performances affecting the quality of ink-jet printing.
References [1] K.J.Fang, C.X.Wang and X, Zhang: Coating Application and Special Printing Academic Papers Vol.(2004), p. 219-222 [2] S.H.Fu:China Textile Leader,Vol.4 (2012), p. 34-37 [3]G.J.WU: Polyester Fabric Pretreatment on the Properties of Ink-jet Printing (Jiangnan University,Wuxi, 2008) [4] S.H.Wang: Effects of Pretreatment on Fabrics Ink-jet Printing Performance (Jiangnan University, Wuxi, 2008)

Under the premise of the fabric can play a role in waterproof, permeability is a key factor affecting the wearing comfort of human body.
There are Many factors that Waterproof and breathable performance will be affected for the waterproof and breathable coating fabric.The fabric type and density, the ratio of pulp and additives, and coating process control is the most important factor.
The role of surface coating processing is to give good mechanical strength, wear-resisting property, scrub resistance and other apparent performance.
The surface coating processing should have high mechanical strength, good wear resistance properties.
[6] Gao Chengxian, The performance and its influencing factors to functional waterproof and breathable coated fabric[J].Printing and dyeing,2005,12:49.

Various factors affecting the casing material needs to be considered by the drilling engineers.
Casing design for such wells becomes acutely important especially in terms of material behavior at operating conditions. [5] Properties such as yield point of the material vary with temperature [6].
The mechanical properties of different casing grades are mentioned in the Table 1.
This is achieved by providing the necessary non-linear properties to the solver.
The mechanical properties of these two materials are mentioned above.

China University of Mining & Technology (Beijing) School of Mechanics and Civil Engineering，Beijing 100083；) Keywords: deep;Geotechnical mineral;soft rock types;deformation mechanical mechanism Abstract: As soft rock roadway projects have the characteristics of large deformation, and earth pressure,difficult to support, and all that make shallow form of support can not meet the needs of the soft rock roadway, the main reason is that the soft rock roadway has compound deformation mechanism, which makes that the single support physical science features and rock mechanical properties can not be coupled, and a key part of the soft rock roadway begins to undermine firstly, which leads to the instability of the entire supportive system.
This paper utilized the deep soft rock roadway of Daqiang Coal Mine of Tiefa Coal Industry as engineering background, systematically studied the mechanical characteristics of the soft rock roadway engineering geology, deeply analyzed the mineral properties of surrounding rock, and proposed the soft rock roadway’s compound deformation mechanism and conversion process of transforming compound into single deformation mechanism, providing important theoretical basis for designing .Daqiang Coal Mine deep soft rock roadway Introduction The Tiefa Coal Industry (Group) Co., Ltd.
The temperature below-750m is high, the design only through mining, processing, environmental protection and other technical means to address the impact of unfavorable factors, to take full advantage of the favorable factors, playing equipment performance to ensure that mine production scale. 2.2 Ida geological structure The Ida coal-bearing stratum is flat and dip 5～15°,we look at the whole region, trending east-west, south dipping monoclinal structure.
Although the level tectonic stress value is not great, but for the most Daqiang Coal Mine soft rock roadway, horizontal tectonic stress is one of the main factors of the roadway destruction and even bottom heave.
At the same time, the surrounding rock is influenced by tectonic stress, especially when the level tectonic stress is one of the main controlling factors of the roadway damage and floor heave.