It is necessary to dig and fill the soil, how to calculate the comprehensive amount of earthwork

If the depth of excavation and filling is within 300mm, according to the requirements of the measurement specification can be calculated according to the leveling site, if the depth is greater than 300mm, the total amount of excavation and filling divided by the amount of earthwork of the list is obtained from the earthwork content of the list, just a personal point of view, I don't know if it will help you;

Loose coefficient of earthwork filling and excavation: Initial loose coefficient k1 = v2 v1 (can be queried from the relevant specifications, for ordinary soil, the value is taken.) Finally, the looseness coefficient k2 = v3 v1 (can be queried from the relevant specifications, for ordinary soil, the value is taken.)

v1 – the volume of soil in its natural compacted state; v2 - the loose volume of the soil after excavation (imaginary square); v3 - the volume of soil after backfilling and compaction; Generally, both k1 and k2 are greater than 1, and k1 k2. Table of earthwork volume conversion factors. Imaginary square loose fill natural dense ramming The imaginary square soil in the quota refers to loose soil; Natural compacted soil refers to undisturbed natural soil; Compacted soil refers to the soil that has been compacted by layered rolling according to the requirements of the specification; Loose fill refers to the soil that is used for backfilling after natural soil is excavated but is not compacted and naturally stacked.

The amount of excavation and earth-moving engineering in the quota is calculated by natural squares; The amount of ramming and filling is calculated according to the volume of rammed soil; The quantity of loose fill is calculated according to the volume of loose fill; Under normal circumstances, the calculation of earthwork excavation, filling, outward transportation quantity does not need to consider the conversion factor, when the site backfill needs to take the soil off-site, it should be multiplied by the amount of backfill multiplied by the conversion coefficient of rammed fill or loose fill and natural soil in the "earthwork volume conversion table" to calculate the amount of internal earthwork and off-site excavation.

The amount of road leveling site and rolling engineering shall be calculated according to the following provisions:

1. Artificial leveling refers to the excavation, filling and leveling of the construction site within 30cm. When the thickness of excavation and filling exceeds 30cm, it shall be calculated separately according to the vertical layout of the earthwork balance of the site.

2. The amount of leveling site is calculated in square meters according to the addition of 2m on each side of the outer edge line of the outer wall of the building.

3. The original soil rolling of the construction site is calculated in square meters, and the filling thickness is calculated in cubic meters according to the filling thickness shown in the figure.

The key basis for judgment: see whether the height of the excavation and the depth of the filling exceed (>; h or =) 300mm.

The total calculation is: s=(a+2+2) b+2+2)=a b+4 (a+b)+16.

Datum characteristics of earthwork.

The reference feature of datum feature part modeling is mainly used to assist in the creation of 3D features, and can be used as a reference surface for feature section drawing, a reference plane and control point for model positioning, and a reference surface for assembly.

In addition, datum features, such as coordinate systems, can be used to calculate the mass properties of a part, provide a path of operation for manufacturing, and more.

Datum features include: datum plane, datum axis, datum point, datum curve, coordinate system, and so on.

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.

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.)

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.