1. Preparation before installation

Foundation strength measurement: before the equipment is in place, the strength of the concrete of the equipment foundation shall be measured. Generally, the equipment can be installed in place only when the concrete strength reaches more than 60%. Small and medium-sized equipment can be used by the ball impact method. The foundation must be preloaded before the installation of large and medium-sized equipment in place. The weight of preloaded is 1.2 ~ 1.5 times of the total weight of the dead weight and the maximum weight of the allowable workpiece. The preloaded weight should be evenly added to the foundation, and the preloaded work should be carried out until the foundation settlement can not be observed with the level. The main content is whether the basic shape size, center line, elevation, bolt hole coordinates, depth and so on meet the design and construction requirements. There are nonconformities to be addressed in the basic inspection process, usually a strategy for dealing with the underlying defects.

Foundation wiring: after the foundation is accepted and the surface is clean, wiring can be done. In accordance with the material building axis measuring equipment vertical and horizontal center line, and in the vertical and horizontal center line on the basis of the determination and add ammunition auxiliary reference line. Wiring should pay attention to the ruler to straighten, put, accurate measurement.

2.the construction process of mechanical installation engineering

1, mechanical equipment anchor bolt installation The connection between the equipment and the foundation is mainly the foundation bolt connection. The equipment is aligned and levelled by adjusting the pad iron, and then the equipment is fixed on the equipment foundation by grouting.

Anchor bolt can be divided into fixed anchor bolt, movable anchor bolt, expansion anchor anchor bolt and bond anchor bolt according to the embedment form, commonly used is fixed anchor bolt and movable anchor bolt. Fixed anchor bolts can be divided into embedded anchor bolts, reserved hole anchor bolts and epoxy mortar anchor bolts according to different installation methods.