Temporary water supply pump for construction site

Calculation of Domestic Water Consumption for Temporary Water Supply Pumps on Construction Sites

Q3=q3N3k4/8*3600

Among them, K4 is the same as above, taking 1.5

N3 is the daily water consumption per person, taking 20L per person per day

Q3 is the maximum number of people on the construction site during peak hours

Q3=1500*20*1.5/8*3600

=1.54L/S

(Considering a peak period of 15000 people at the construction site of this project)

The fire water consumption Q4 can be calculated based on the actual situation of this project, assuming that there are two fire incidents at the same time, with a water quota of 25L/S

That is, Q4=25L/S

Q1+Q2+Q3=18.3+0.56+1.54=20.43L/S

Therefore, the construction water consumption for this project should be taken as Q4=25L/S

So, the required pipe diameter D=√ 4 * Q4./3.14 * V * 1000=√ 4 * 25./3.14 * 2 * 1000=0.126

取 D=125mm

Calculation of total construction water supply

1) Calculation formula:

q1=K1ΣQ1.N1/(T1.t)×K2/（8×3600）

Q1- Construction water consumption (L/S)

K1- Unexpected construction water coefficient (1.05-1.15)

Q1- Annual (quarterly) engineering quantity (expressed in units of measurement)

N1- Construction Water Quota

T1- Annual (quarterly) effective homework days

T - Number of homework shifts per day

K2- Water imbalance coefficient