Temporary water equipment for construction sites



Calculation example of temporary water equipment on construction site

Proposed construction of 6 buildings with 15 floors (68558 square meters) and 5 buildings with 18 floors (58614 square meters) in the residential area, to be carried out simultaneously

1.施工用水

Calculated based on the maximum daily construction water consumption during peak periods:

Q1=k1∑q1N1k2/8*3600

Among them: k1 is the coefficient of unexpected construction water consumption, taken as 1.15

K2 is the water imbalance coefficient, taken as 1.5

Q1 is the production quantity of single quantity equipment, personnel, etc

The production capacity of the mortar mixer is calculated at 30 cubic meters per shift every eight hours

The masonry volume for an eight hour bricklaying shift is calculated at 20 cubic meters per unit shift

Water for concrete maintenance within eight hours (natural maintenance, calculated at 100 cubic meters per shift)

N1 is the water consumption per unit time for producing a certain product based on the quantity of equipment, personnel, etc

Take 400L/cubic meter of water per cubic meter of mortar

The water consumption per cubic meter of brick masonry is 100L/cubic meter

The maintenance water consumption for each cubic meter of concrete is 200L/cubic meter

Q1=1.15*(22*30*400+11*20*100+100*200)/8*3600

=18.3L/S

(This project is calculated based on two mortar mixers and one group of bricklayers per building)

2. Mechanical water consumption

Q2=k1∑q2N2k3/8*3600

During this period, K1 and K3 are the same as above

Q2 is calculated based on one welding machine for 8 hours, one carpentry workshop for one shift, and one boiler for 8 hours

Each N2 welding machine consumes 300L of water per shift hour

One carpentry workshop and one workstation require a water consumption of 20L per workstation

A boiler consumes 1000L of water per lifting hour for 8 hours

Q2=1.15*(300*8*5+20*5+1000*8)*1.5/8*3600

=0.56L/S

(This project is calculated based on the simultaneous use of five welding machines and the simultaneous operation of five woodworking rooms)