How to calculate the area of highway subgrade cross section? For example: 3.10m subgrade width left: 10.75 right: 10.75 slope 1:1, what's the excavation area

How to calculate the area of highway subgrade cross section? For example: 3.10m subgrade width left: 10.75 right: 10.75 slope 1:1, what's the excavation area

If it's regular, it can be calculated geometrically. If it's not, we used to draw on centimeter paper and then calculate the area of centimeter paper. Now it's very convenient to calculate the area at first after drawing with CAD

It is designed to be built on a road, and the cross-sectional area of the subgrade is trapezoidal ABCD, as shown in the figure. The height of the subgrade is set as h, and the slope angles on both sides are α and β respectively, and the known H = 2
α = 45 °, Tan β = 1 / 2, CD = 10. How much earth stone is needed to build a 1000m subgrade like this

Trapezoid area = triangle 1 + rectangle + triangle 2
The height of triangle 1 is 2, the bottom is 2 divided by tan45, that is 2, so the area of triangle 1 is 2
The height of triangle 2 is 2, the bottom is 2 divided by Tan β, that is 4, so the area of triangle 2 is 4
The height of the rectangle is 2, and the other side is 10-2-4, that is 4, so the area of the rectangle is 8
So the trapezoid area is 14
Earthwork volume = trapezoidal area times road length = 14000 cubic meters

The engineering team built a 10.6km long road with trapezoidal cross section. The width of the upper bottom is 8m, the width of the lower bottom is 12M, and the height is 0.6m. How much earthwork is needed for this road?

10600 * 0.6 * (8 + 12) / 2 = 63600 M3

The subgrade slope is 60 meters high and the design slope is 1:0.75. Now I want to change it to 1:1. How can I write the reason

1、 It can increase the water damage ability of the subgrade and prolong the service life of the subgrade. 2. Because the width of the lower base is increased, it means that the water impact resistance of the lower base is increased. 3. Because the width of the soil base is increased, the side ditch moves outward and reduces the damage ability of the foundation due to the infiltration of the side ditch,

After the astronauts arrived on the moon, their weight was only 16 times that of the earth. Yang Liwei, the "Space Hero", came to the moon and lost 50 kg. How many kg does he weigh on the earth?

His weight on earth is 60 kg

How to carry out road slope grading? How to determine the first and second grade gradient and slope height of fill and cut slope?

According to different soil grading, the first grade of soil excavation is 1:1, the slope height is 10m, the second grade is the same, the first grade of filling is 1:1.58m, the second grade is 1:1.512m

Everyone's weight on the moon is only one sixth of that on the earth. An astronaut's weight on the earth is 66 kg. How many kg has he lost on the moon
In two ways

66-66×1/6
=66-11
=55 (kg)
or
66×(1-1/6)
=66×5/6
=55 (kg)
A: 55 kg less on the moon

How to set out the slope with slope in engineering survey
For example, to build a retaining wall on the side of the road, how to set out when the designed slope ratio is 1:0.3
I haven't been in touch with this. I want to know how to set out the slope of the retaining wall with the slope ratio, and call the construction team "construction process"

I'll draw you a picture and you'll see

The weight of an astronaut on the moon is only 16 times that on the earth. An astronaut weighs 72 kg on the earth. How many kg has he lost on the moon?

72 × 16 = 12 (kg), 72-12 = 60 (kg); a: 60 kg weight loss

The original design slope of a section of road is 50%. First, adjust the slope coefficient to 0.5. What is the slope? If the slope coefficient is adjusted to 0.5, what is the slope

For the first time, the unit of the gradient is 50%, which is a 1:2 slope? Is the adjustment gentle or steep - 0.5 or + 0.5? If it is negative, it is 1:1.5; if it is gentle, it is 1:2.5; generally speaking, the slope of 1:2 is very gentle, which may be adjusted to 1:1.5