The model includes that the relationship between median diameter, as well kinetic energy, of raindrop and rainfall intensity obeys logarithmic function, the critical slope degree of soil erosion is 38.4°～43.0° in test area and the best multiple index of rainfall erosivity value is /100. Employing the prediction model, the soil erodibility value, the accelerated value of excavation slope, roadbed slope, construction site, borrow pit, service road and other temporary occupation land and the loss-spoil ration of waste pile were examined. Finally, the integrated soil and water conservation measures in highway construction project have been suggested.

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The conclusion of the function of riprap layer is enforce the erosion resistance of slope is set up by the safety factor comparison between natural slope and riprap slope. At last, appraise the bank revetment project in Sima bend by study on incipient velocity of riprap.

通過拋石前后安全系數(shù)的對比得出拋石層的主要作用為增強岸坡的抗沖制能力的結(jié)論亚洲中日韩欧美精品一区二区，最后通過對拋石起動流速的研究，對嘶馬岸段的拋石護(hù)岸工程進(jìn)行了評價91原创自拍视频。

This paper introduces the design method and main function of Slope Designer (Version 1.2) for landslide stability evaluation and improvement design.

主要介紹了Slope Designer 1.2的設(shè)計開發(fā)思路和主要功能在欧美特级方面,想看欧美特级黄片。

Then we used "Slope" function under "Grid Analysis" to obtain slope angle of each pixel area.

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Its slope function can make the user pass in and out conveniently, and doesn't cause the slip because of careless.

其坡度的功能豆奶APP下载入口，使用者進(jìn)出學(xué)習(xí)桌方便不致因不小心滑倒亚洲屄屄视频网站。

Calculate betas for each period using the Excel SLOPE function.

運用 Excel 函數(shù) SLOPE 計算每一期的 beta 。

The sixth part: Studies on the dynamic changes of soil retention function value of ecosystem in YUYANG District. Utilized ERDAS8. 5 to interpret the remote sensing image and get LUCC data and vegetation information of YUYANG District. Utilized R2V5. 5 to digitize administrative map, topographic map, vegetation picture, soil distribution map and meteorological website map. Utilized ARCINFOR8. 3 to change every digitization layer to the same projection, to generate Tyson polygon, to structure DEM and do vector polygon overlay. Utilized ARC VIE W3. 3 to obtain the grid data topographic slope and slope length from DEM data of YUYANG District, and then, turned every coverage layer into grid layer and do grid polygon overlay to gain data about dynamic changes of value of soil retention of ecosystem in YUYANG District, at last, the author analyzed the features of the spatial-temporal changes and its reason.The seventh part: Studies on the dynamic changes of fixing drifting sand against wind function value of ecosystem in YUYANG District.

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Through the research of direct search method based on 3D FEM, and its application for the tunnel slope stability analysis, the objectives of this work in this paper are as follows:1. The dynamic programming as well as its application for 3D side slope stability analysis is studied. With the introduction of graph theory concept, one kind of glide pattern of 3D slope is constructed, and the critical slip surface with smallest safety factor is searched with the aid of one auxiliary function including safety factor;2. Using the C++ programming language, the 3D slope stability analysis and the direct search procedure is established, and this method is testified applicably by some contrast analysis, also some influence factor in analysis is discussed;3. Integrated with the different actual situation in tunnel slope, considered its excavation, timbering and rain infiltration, its stability influence and rule is researched used this method, also some processing measure is proposed.

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Compared with the exponent function, the power function can be more suitable for fitting the change of chemicals concentrations in runoff under unsaturated conditions from the loess slope,as well as,the mass loss of potassium and bromine in runoff,but not for initial phase. The study offered a reference for developing the model of soil nutrient in runoff transport of the loess slope.

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Law of function of the first kind of statistic is the function of a few statistic in direct use excel, include function of slope, intercept, correl, rsq.

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