Advice Earthwork excavation amount Fine aggregate backfill amount How to calculate earthwork backfil

You're asking a bit general, do you want a formula for calculating earthwork?

Foundation pit earthwork v=(a+2c+kh)*(b+2c+kh)*h+1 3k2*h3

a, b is the side length, c is the width of the working face, k is the grading factor, and h is the depth. The last is a third of the k squared multiplied by the h cube, I can't type the upper right character, don't get me wrong. C is related to the foundation type, K is related to the depth of the foundation pit and the soil type.

There is this quota. You can calculate the design elevation according to the design requirements, minus the volume of various components of the foundation buried by backfilling.

Excavation: v=h(b+,Backfill:v=h(b+,h is the depth of the ditch, b is the width of the bottom of the ditch, l is the length of the ditch, isGrading factor

20% is the amount of buried equipment and materials.

Earthwork excavation. It is a key process in the early stage of the project and in the construction process. The work of loosening, crushing, excavating and transporting soil and rock. According to the nature of rock and soil, earthwork excavation is divided into earthwork excavation and stone excavation.

According to the construction environment is open, underground or underwater, earthwork excavation is divided into open excavation, hole excavation and underwater excavation. In hydraulic engineering, earthwork excavation is widely used in site leveling and slope cutting, hydraulic structures (sluices.

dams, spillways.

Hydropower plant buildings, pumping station buildings, etc.).

Excavation of underground caverns (hydraulic tunnels, underground workshops, various flat tunnels, shafts and inclined shafts), excavation and dredging of rivers, channels and ports, mining of filling materials, building stones and concrete aggregates, cofferdams.

and other temporary buildings or masonry, concrete structures, etc.

Before construction, it is necessary to follow the scale and characteristics of the project, the natural conditions such as topography, geology, hydrology, meteorology, etc., the construction diversion mode and the progress of the project.

Requirements, construction conditions, and possible construction methods, etc., study and select the excavation method. Cut-and-cover excavation includes comprehensive excavation, sub-site excavation, layered excavation and sectional excavation. Comprehensive excavation is suitable for projects with shallow excavation depth and small scope.

When the excavation range is large, it is necessary to use sub-site excavation. If the excavation depth is larger, the layered excavation is adopted, and the stone excavation is often combined with the deep hole ladder blasting (see deep hole blasting) according to the stratification layer. Sectional excavation is suitable for larger length channels, spillways and other projects.

For tunnel excavation, there are excavation methods such as full-section excavation, partial excavation and pilot tunnel method.

I don't know what you do, you need to know this, I want to know, maybe we can work together,.

The calculation formula for the amount of earthwork excavation and sliding and stove, the amount of backfill and the amount of spoiled soil:

1. (width + height x slope coefficient) x height x length = amount of cut.

2. Excavation amount - (excavation amount - foundation volume) Final loose coefficient = spoil.

3. Spoil x final loosening coefficient = final spoil volume.

4. The final volume of spoil divided by the loading volume = the number of cars.

Specifically, according to the given topic:

1. Excavation quantity = 40 (cubic meters.)

2. Backfill engineering quantity = cubic meters.

3. The amount of spoil engineering = (cubic meters.)

Quantity of excavation = 40 (cubic meters.

Backfill quantity = cubic meters.

Quantity of spoil = (cubic meters.)

1. The excavation quantity refers to the total excavation quantity of the foundation excavation of each building (structure), various ditches, pipeline excavation, plant railway and special iron hail route excavation, road excavation outside the plant and other projects.

Cut amount = (width + height x slope factor) x height x length.

2. Earthwork backfill is the filling of construction projects, mainly including foundation filling, foundation pit (groove) or pipe ditch backfill, indoor floor backfill, outdoor site backfill leveling, etc. The engineering quantity calculation of backfill is divided into:

Indoor backfill: multiply the net area between the main wall (load-bearing wall or wall with a thickness of more than 15cm) by the average thickness of the backfill, without deducting the volume occupied by wall stacks, columns, chimneys attached to the wall, garbage channels, etc.

Trench and pit backfill: calculated according to the total amount of excavation minus the amount of masonry and pouring volume buried below the designed outdoor floor (including wall foundation, column base, cushion, etc.), v fill = v excavation - v foundation.

Pipe trench backfill: calculated by subtracting the volume of the pipeline foundation and the volume of the pipeline with a diameter of more than 500mm. Pipes of different specifications with a diameter of more than 500mm should be reduced by corresponding volume per m.

3. The amount of spoil earthwork refers to the excess earthwork that must be transported out of the construction site to the place where the pile is allowed after the project excavation and earthfill are balanced. The number of cubes is called the amount of spoil.

Spoil = amount of cut - (amount of cut - volume of foundation) final loose coefficient.

I would like to add here that none of the Huili Sparrows upstairs have thought about the soil itself.

To put it in layman's terms, it's still like what a few people upstairs said. For example, if you plant a tree, you dig a hole, put the sapling in it, and then backfill the soil, which is the amount you dig minus the volume of what you want to bury.

In the actual project, it is not how big the foundation is to dig how big the pit, for example, the wall of 300, when digging the foundation, the working surface of 30 should be left on both sides, and the construction wall is used by the workers, so the width of the foundation pit should reach 360Therefore, the amount of cut should be considered.

In order to save costs in the actual construction, the backfill is basically backfilled with the soil dug out when digging the rotten hand foundation pit. However, the part of the foundation is removed, and the excavated soil will still be more, that is to say, the amount of backfilled soil can not be calculated according to the formula (backfill soil = digging foundation pit or foundation trench earthwork - foundation volume), this is because the excavated soil has an expansion coefficient. For a very simple example, if you dig a pit and fill it in, there will definitely be leftovers.

After cumulative compaction, the natural soil has a great degree of compactness, even if you backfill it with tamping, it will not reach the compactness of the natural soil.

Therefore, the amount of excavation should be multiplied by a loose coefficient, for example, digging 1000 soil, multiplied by the coefficient, the actual loose soil is 1200, the size of the foundation pit is still 1000, the foundation is 600, the soil backfill of 400 is needed, and the loose soil required is 440 (in the case of backfill compaction coefficient).

This specific coefficient should be checked according to the specification and look at the geological report of your location, and different soils have different pre-system numbers.

The calculation formula for the amount of earthwork excavation, backfill and spoil:

1. (width + height x slope coefficient) x height x long signal = amount of excavation.

2. Excavation amount - (excavation amount - foundation volume) Final loose coefficient = spoil.

3. Spoil x final loosening coefficient = final spoil volume.

4. The final volume of spoil divided by the loading volume = the number of cars.

Specifically, according to the given topic:

1. Excavation quantity = 40 (cubic meters.)

2. Backfill engineering quantity = cubic meters.

3. The amount of spoil engineering = (cubic meters.)

The earth (stone) backfill is calculated by volume according to the size shown in the design drawing.

1) Site backfill: backfill area multiplied by average backfill thickness.

2) Indoor backfill: the net area between the main walls multiplied by the thickness of the backfill.

3) Foundation backfill: the excavation volume minus the volume of the foundation buried below the design outdoor floor (including the foundation cushion and other structures before the package).

4) Pipe trench backfill: the excavation volume minus the volume of cushion and pipe trench with a diameter greater than 200.

Whether it is excavation or backfill, it depends on what type of earthwork you have, according to different types of earthwork to choose different methods to calculate, if it is a large area of the site of excavation and backfill must be to use a square grid or triangulation, if it is a narrow strip earthwork excavation and filling must be a section method, you can choose the corresponding function of earthwork software according to different types.

Earthwork excavation is to calculate the amount of undisturbed soil. Earthwork backfill is calculated according to the amount of earthwork after tamping.