Tests on foundations and foundations

Option 1

In which case it is impossible to use foundations on a natural basis, if under the sole lie:

1) soils are dense, saturated with water

2) ground is silty, ground

3) ground sand is shallow, ground water is absent

4) soft-clay loam soil.

As indicated by the coefficient of porosity:

	1) S h		3) e
	2) J l	4) E

What soils belong to sandy loam silts:

What formula determines the estimated depth of seasonal soil freezing at the foundations:

By what group of limiting states should the bases of buildings be calculated?

1) first 2) second

3) on the main 4) on all

How is the specific weight of the soil:

Option 2

How is the soil flow rate indicated?

What formula determines the normative freezing depth?

The formula for determining the soil in the presence of a basement:

What determines the dimensionless coefficients Mg; Mg; MS included in the formula for determining the design pressure on the basis of "R"?

1) of the coefficient of porosity "e"

2) on the turnover rate:

3) from the calculated value of the angle of internal friction:

4) the specific gravity of the soil " "

What formula determines the estimated depth of seasonal soil freezing at the foundations?

How is the angle of internal friction determined?

Option 3

The formula for determining the soil in the absence of the basement:

What group before. States should be calculated base of buildings?

1) first 2) second

3) on the main 4) on all.

How is the turnover index indicated?

The formula for determining the width of the sole of the strip footing:

According to which loads the necessary section of reinforcement is determined for 1 running meter. m block cushion strip foundation:

1) according to calculations 2) according to standards

3) for those and others 4) is determined by the standards, and is checked by calculated.

The formula for determining the shear force in the console strip foundation at the wall boundary?

Option 4

From what condition is the useful height of the block –– pillows of the strip foundation determined:

1) from the condition of concrete strength in tension,

2) from the condition of the strength of concrete bending,

3) from the condition of the strength of concrete in compression,

4) from the condition of the strength of concrete in compression with a bend.

What formula determines the sufficiency of the size of the sole of the strip footing:

Which section is calculated when determining the cross-sectional area of ​​the reinforcement of the grid of the strip footing:

1) section in the middle of the plate,

2) section on the face of the wall,

3) section on the edge of the foundation,

4) section located on the ¼ plate.

The formula for determining the reinforcement area of ​​the block –bags:

As designate the specific section:

What determines the coefficient included in the formula for determining the design pressure on the base "R":

1) the strength factor e,

2) on the turnover rate:

3) from the calculated value of the angle of internal friction:

4) on the specific gravity of the soil:

Option 5

The formula for determining the bending moment arising in the foundation wing near the wall face:

Formula for determining the area of ​​working reinforcement for 1pog. m pillow length:

What is the minimum diameter of the rods of the grids of the soles of the centrally loaded foundation:

1) not less than 12mm, 2) not less than 14mm,

3) at least 10mm, 4) at least 16mm.

How to indicate the degree of importance:

What is the protective layer of concrete in the base of the foundation in the absence of preparation:

1) not less than 70 mm, 3) not less than 50 mm,

2) not less than 35 mm, 4) not less than 25 mm.

In which case it is impossible to use foundations on a natural basis, if under the sole lie:

1) the soil is dense, saturated with water,

2) ground is silty, ground

3) soil - fine sand; no ground water

4) the soil is soft plastic loam.

Option 6

What is the protective layer in the base of the foundation in the presence of preparation:

1) not less than 70 mm, 2) not less than 50 mm,

3) not less than 35 mm, 4) not less than 25 mm.

From which condition are determined the dimensions of the bottom of the centrally loaded columnar foundation:

1) that the marginal pressure under the base of the foundation does not exceed

design pressure

2) that the average pressure on the base under the base of the base does not exceed the nominal design pressure "R",

3) that the average pressure on the base under the base of the base does not exceed the standard pressure "Rm",

4) so ​​that the edge pressure under the base of the foundation does not exceed the conditional design pressure “R”.

The formula for determining the width of the bottom of the centrally loaded basement:

The formula for calculating the bursting of a centrally loaded foundation:

How is the height “h” of a centrally loaded foundation determined:

1) based on bending,

2) based on stretching,

3) based on pushing,

4) based on compression.

How is the specific weight of the soil:

Option 7

What are the piles on the method of transferring pressure from the building on the basis of:

1) bored, 3) piles - columns,

2) persistent and trailing, 4) w / b.

How much should the pile be fixed in the grillage with vertical load:

1) not less than 25 cm, 3) not less than 40 cm,

2) not less than 30 cm, 4) not less than 50 cm.

What is the calculation of the height of the pile grillage:

1) based on bending,

2) based on pushing,

3) based on compression,

4) based on stretching.

The formula for calculating the bearing capacity of the pile base substrate:

The formula for calculating the load allowed on the pile by material:

How is the degree of soil moisture indicated:

Option 8

What is "Im" in the calculation of centrally loaded foundations:

1) arithmetic average between the upper and lower sides of the foundation.

2) the arithmetic average between the upper and lower sides of the same face of the pyramid punching,

3) the arithmetic average between the perimeters of the upper and lower bases of the pyramid punching,

4) arithmetic average between the size of the ledges.

The formula for determining the cross-sectional area of ​​the reinforcement of the basement sole:

What section is calculated when determining the cross-sectional area of ​​the reinforcement of the grid of the bottom of a centrally loaded columnar foundation:

1) section in the middle of the base of the base,

2) section on the verge of the base of the base,

3) a section along the column face,

4) section on the verge of the wall.

What kind of overload is allowed under the sole of an off-center-loaded foundation:

1) 5% 3) 15%

2) 10% 4) 20%

The formula for calculating the bending moment in the cross section along the edge of a columnar column foundation:

What section is taken calculated to calculate the transverse reinforcement of the walls of the glass:

1) section on the face of the wall,

2) a section on the face of the column,

3) an inclined section passing through the angle between the stretched edge of the column and the top of the glass,

4) an inclined section passing through the center of the column.