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Fig. 2 The pollution area after using of chemical fertilizers, pesticides, sludge and sewage irrigation Materials and methods Sample collection and preparation.
Environmental soil science [M].
Beijing: Science Press, 2005, p.2-82
Journal of ecology and rural environment, 2007, 23(1) p.33-39
Journal of safety and environment, 2006, 6(5) p.60~63

Journal of Applied Engineering Science, Vol. 12 (1) (2014), pp 1-10 [9] V.
Applied Mechanics and Materials.
Applied Mechanics and Materials.
Applied Mechanics and Materials.
Journal of Applied Engineering Science, Vol. 12 (1), (2014), pp 37-44

Materials processing by pressure, no. 10, pp. 6-11, 2012
Vaßen, Plasma-sprayed thermal barrier coatings: new materials, processing issues, and solutions, Journal of Thermal Spray Technology, vol. 22, no.
Materials of the All-Russian Scientific and Technical Conference.
Plasma torch for supersonic plasma spray at atmospheric pressure // Journal of Materials Processing Technology.
Thermal plasma technology: The prospective future in material processing // Journal of cleaner production.

Academician Jincai Gu raised layered fracture damage mechanism of deep excavation cave surrounding rock based on analysis characteristics of force-deformation, and verified the model test results by using similar material.
Chinese Journal of Rock Mechanics and Engineering,2008,27(6): 1278–1284.
Journal of Geological Hazards and Environment Preservation,2006,17(4):80–84.
(in Chinese) [7]Hua Song,Xinhong Wang,Mingyang Wang.Zone deformation mechanism of rock mass around deep underground tunnel[J].Journal of PLA University of Science and Technology(Natural Science Edition), 2007, 8(3):274-278.
Chinese Journal of Rock Mechanics and Engineering,2008, 27(3): 433-438

Mangesh V et al. [1] reported application of agro-waste for sustainable construction materials.
Materials used to make hollow concrete block are listed in table 1.
Wheat stalk, lime paste and water were materials used to make the compressed bricks.
Mandavgane, Application of agro-waste for sustainable construction materials: A review, J.
[12] Wu D C, Economic analysis for rural housing construction with light steel and straw stalk compound board structure, Chinese Journal of Chang’an University (Social Science Edition) 9(2007), 51-53

Zhao (Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials,P.O.
The Minerals, Metals & Materials Society, Warrendale, 2000, p. 766 [4] K.
The Minerals, Metals & Materials Society, Warrendale, 2000, p. 777 [6] N.
Materials Science and Engineering A, 374(2004), p. 270 [8] K.
Materials Science and Engineering A, 311 (2001), p. 54 [11] N.

And soil is simulated by Solid45 element, soil material model is D-P model, and parameters of soil are shown in Table 1.
Prediction of slope failure due to earthquake, Chinese Science Bulletin, Vol.54 16 (2009) 2888-2894
Journal of China Coal Society, Vol. 35 10 (2010) 1621-1626
Journal of China Three Gorges University, 1 (2010) 39-42
Journal of Earth Science, Vol. 23 3 (2011) 285-296

China, 312000 2College of Life Science, Shaoxing University, Shaoxing, P.R.
Vol.25(2003), p.4 [2] Li Z., Huang W. and Xie K.: Journal of Environmental Sciences.
Vol.27(2005), p.56 [7] Gao J.M.: Journal of Chongqing Architecture University.
Vol.23(2000), p.45 [8] Wen D.H., Zhang X. and Wu W.Z.: Journal of Peking University.
Vol.39(2003), p.494 [9] Zhao Y.P., Jing W. and Cao D.W.: Environmental Science.

Soil contamination can be defined as the build-up of persistent toxic compounds, chemicals, salts, or radioactive materials [16].
In another reason, since the chemical compositions of the fuel oil interact with the original soil composition and produce a material with a density less than that of the original materials.
AbdulKareem, Effects of residues oil contamination on the geotechnical properties of clay soil, Association of Arab Universities Journal of Engineering Sciences, 25(5) 2018 243-255
Osuolale, Oil contaminated soil as potential applicable material in civil engineering construction, Journal of Environment and Earth Science, 4(10) 2014 87-99
Ahmad, Influence of oil contamination on geotechnical properties of basaltic residual soil, American journal of applied sciences, 7(7) 2010 954

Based on the studies about damage assessment on the level of materials and components，the author made a comparative analysis on the damage mechanism and applicable conditions，and put forward the amended formulas for calculating the flexural and shears capacity，This paper combined with results of previous studies, based on the structural damage assessment research, reinforced concrete beam structure correction formula is given in the event of cracks and shear cracks.The assessment formula for shear capacity was established as well，and in which various impact factors of shear strength was considered comprehensively.
Acknowledgements This work was financially supported by Science and Technology Department’s Directive project (10215622D), Hebei province of China, and gratefully acknowledged.
References [1].ZHANG zhen-shuan，WANG zhan-lei,，Safety of existing reinforced concrete beams，[D]，Journal of Dalian University of Technology ,2007 [2].Qianyong-jiu,Chehui-min, Assessing method of the strength of oblique cross-section study about existing reinforced concrete bridge.
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LIU Meng, LI Shen-tian, Experimental Study 0f RC Beams with Inclined Cracks.Dalian University of Technology, Journal of LliaoNing Institute of Technology ,2004,4