How to set the quota of prestressed concrete precast piles

It should be determined according to the relevant indicators of soil structure and soil physical and mechanical properties in the engineering geological data, with reference to the pure pile sinking time. Where there is a sand interlayer, the soil grade should be determined according to the sand layer first. If there is no sand layer, it shall be determined according to the physical and mechanical properties of the soil and refer to the average pure pile sinking time per meter.

When the soil mechanical properties index is used to identify the soil grade, the pile length is less than 12 meters, and the thickness of the soil layer equivalent to one-third of the pile length should reach the specified index. Beyond 12 meters, it is determined by the thickness of 5 meters.

When the quantity of piling (filling) of a unit project is within the quantity specified in the following table, the amount of labor and machinery shall be calculated according to the corresponding quota item multiplied by the coefficient.

If the net distance between piles is less than 4 times the pile diameter (pile side length) for piling and drilling, the coefficient shall be multiplied by the labor and machinery in the corresponding quota project.

The quota is subject to the straight pile, if the slope of the inclined pile is within 1:6, multiply the coefficient according to the corresponding quota item, if the slope is greater than 1:6, multiply the coefficient according to the corresponding quota item manual and mechanical.

The quota shall be subject to the piling on the flat ground (slope less than 15 °), such as piling on the embankment slope (slope greater than 15 °), according to the corresponding quota project manual and mechanical multiplication coefficient. For example, when piling in the foundation pit (the depth of the foundation pit is greater than 1 meter) or the pile in the pit groove (the depth of the pit is greater than 1 meter) on the floor, the coefficient shall be multiplied by the labor and machinery according to the corresponding quota project.

The quota shall be subject to the piling on the flat ground (slope less than 15 °), such as piling on the embankment slope (slope greater than 15 °), according to the corresponding quota project manual and mechanical multiplication coefficient. For example, when piling in the foundation pit (the depth of the foundation pit is greater than 1 meter) or the pile in the pit groove (the depth of the pit is greater than 1 meter) on the floor, the coefficient shall be multiplied by the labor and machinery according to the corresponding quota project.

The filling coefficient and material loss specified in the following table have been included in the quota of various perfusion materials.

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The fixed unit price of precast concrete piles includes the following work contents:

1) Template making;

2) installation and dismantling;

3) Apply release agent;

4) Concrete mixing, mixing, pouring, pounding and raising;

5) Steel mold back to the warehouse for maintenance;

6) Steel bar rust removal, straightening, material breaking, bending, welding, binding, molding;

7) 150m material transportation and other all operation processes.

The engineering quantity of precast concrete square piles is calculated by volume, and the volume of 400mmx400mmx2400mm is cubic meters.

The engineering quantity of prefabricated concrete square piles is calculated according to the volume, v=l s design pile length x pile cross-section.

Reinforced concrete prefabricated piles refer to the prefabricated component processing plant prefabricated, after maintenance, to reach the design of strong branches, and then transported to the construction site.

with a pile driver. Driven into the soil, then the foundation of the cap beam (slab) is poured on top of the pile. The concrete number used in reinforced concrete precast piles.

It should not be less than 300. The diameter of the stressed reinforcement of the pile should not be less than 12 mm, and it is generally configured with 4 8 main reinforcements. In order to resist hammering and crossing the soil layer, stirrups should be inlaid at the top of the pile and at the tip of the pile.

And bend the main reinforcement at the tip of the pile and weld it to a mandrel. Reinforced concrete precast pile has the advantages of simple fabrication, high strength, high stiffness and can be made into various cross-sectional shapes, and is a pile type that is widely used.

Find the fixed amount of precast concrete square pile 400mm 400mm 2400mm.

Hello dear! We'll be happy to answer for you. Find the quota engineering quantity of precast concrete square pile 400mm 400mm 2400mm Answer:

Hello, calculate the engineering quantity of precast concrete pipe piles: 1. The volume of precast reinforced concrete piles is calculated according to the design pile length (including the pile tip, without deducting the virtual volume of the pile tip) multiplied by the pile cross-sectional area. Piling:

Electric welding piles are calculated according to the design joints; Sulfur cement piles are calculated in square meters according to the pile section. Pile delivery; It is calculated by multiplying the cross-sectional area of the pile by the length of the pile (i.e., the height from the bottom of the pile driving frame to the top of the pile or from the top of the pile to the natural floor surface. 2. In the quota, the engineering quantity of the hydrostatic precast concrete pipe pile is calculated by meter according to the total length of the pile, the engineering quantity of the pile cushion cap is calculated by the length of the cushion cap multiplied by the width of the cushion cap multiplied by the thickness of the cushion cap, the engineering quantity of the foundation beam is calculated by the height of the beam multiplied by the width of the beam multiplied by the net length of the beam according to cubic meters, after the site is leveled, if there is no basement, there is no need to excavate the earthwork when piling, the foundation part needs to be excavated after the pile is laid, and the engineering quantity of the precast concrete pipe pile includes the engineering quantity of piling, piling, and sending piles, However, the amount of work involved in the excavation of pile heads and the production of precast concrete pipe piles is not counted, and the piling team is responsible for the part that is elevated.