# slope angle

## slope angle

[′slōp ‚aŋ·gəl]
(mathematics)
The angle of inclination of a line in the plane, where this angle is measured from the positive x axis to the line in the counterclockwise direction.

## slope angle

The angle in the vertical plane between the flight path and the horizontal.
References in periodicals archive ?
According to US Geological Survey, monitoring the tilt or slope angle as well as shape or "strain" helps volcanologists keep an eya on moving magma.
In order to further analyze the compressive strength and pre-peak energy of coal-rock combined body, this paper chooses the height ratio, lithology, and slope angle as factors, select three levels for each factor, and conduct orthogonal test.
According to the results of weights calculated through Arc-SDM, land cover, lithology and slope angle are significantly influencing the spatial distribution of landslides in the study area.
Slope Elevation, potential solar radiation, aspect, slope angle and regional effects are determined.
Serial Horizontal Slope angle The most number projection (m) ([degrees) unfavorable center (m) 1 9 41.6 (3.200, 12.800) 2 8 45.0 (2.133, 12.800) 3 7 48.8 (1.067, 12.800) 4 6 53.1 (0.000, 14.400) 5 5 58.0 (0.000, 12.800) 6 4 63.4 (-2.800, 14.400) 7 3 69.4 (-2.600, 12.800) 8 2 76.0 (-7.200, 16.000) 9 1 82.9 (-7.700, 14.400) 10 0 90.0 (-6.000, 11.200) Serial Radius (m) Safety factor number 1 13.19 1.82 2 12.98 1.74 3 12.84 1.65 4 14.40 1.57 5 12.80 1.50 6 14.67 1.41 7 13.06 1.33 8 17.54 1.22 9 16.33 1.13 10 12.54 1.07 Table 10: The safety factor and radius at the slope height of 9 m.
(1) Relationship between Slope Angle, Slurry Consistency, and Macropore Structure Formation.
In order to accommodate both regular and small-sized passenger aircraft (such as the DHC8-400) in service at Miyazaki Airport, the design of the PBB, including the head structure, lifting apparatus, running gear, and tunnel portion, was holistically revised to allow connection to all types of regular and small-sized aircraft while still maintaining the gentle slope angle required for PBB standards.
In terms of slope geometry, reference [5] stated that 30Adeg to 45Adeg of internal friction angle is frequently prescribed for construction of clayey soil slopes, but to achieve stability, slope angle should be less than 20Adeg.
The critical yield acceleration coefficient increased with soil strength and depth of the weak layer and decreased with slope angle and slope height.
In other words, the in situ stress of the area within a certain distance to the slope surface exhibits a higher value owing to the mountain slope effect, and this effect would become increasingly evident with the increment of the slope angle. In particular, when the slope angle is equal to 60[degrees], the calculated maximum principal stress is up to 17.5 MPa, which is more than ten times of the values of [gamm]h.
According to the slope angle of material, cutting component forces are decreased as shown in Fig.
The aim of this research is to establish the dependence of settlement of the closed landfill on the properties of the underlying soil, as well as the landfill slope angle to predict the possibility of using it as a basis for construction.

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