What scene concrete placing boom used?

Today's construction business in order to save the template input, accelerate the construction schedule, the general level of adoption is that each task is divided into two construction segments. That is a partial concrete casting or do maintenance work, do a partial reinforcement, templates, carpenters and other operations, the second partial replacement is not done, this task better way to conserve resources, accelerate the construction schedule. On the concrete pouring operations, approaches the end of the construction site pouring adopted are:
1, hopper crane operations;
2, concrete pumping operations;
3, concrete pumps + booms operations;
4, concrete pumps + booms operations and other measures.

1, crane + hopper jobs: Such an approach is concrete pouring operations more primitive. Common construction machinery equipped with only one crane, and the role in the construction crane is very important: the outer frame, steel, carpenters and other trades are inseparable from the crane operation cooperation, but a crane into the concrete pouring operation, other types of Construction progress is bound to be affected. And follow the elevated floors, concrete lifting occupancy time longer, the impact on other types of work will become increasingly prominent. If the site thus re-equipped with a crane, the monthly fee will add 2 - 3 million bear. Due to significantly curb such practices of the construction schedule, has gradually been screened by local construction companies.
2, concrete pumps + booms job: learn the advantages and disadvantages of the three approaches ago, I developed a fully hydraulic boom. This series has a cloth boom radius, operating repair simple, many strengths safety, a substantial increase in productivity, etc., have gradually been broad construction companies bear. When this series of booms in the elevator shaft device, follow the floor rises, along with the choice of hydraulic jacking means higher floors together, raised floor ceiling, hanging down from the crane differentiation. The emergence of hydraulic boom concrete pump function will carry forward was even more successful.