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I was working on a project recently that required the delivery of jacks; due to the large number of devices, they were divided into 4 separate jacks. I had never worked with jacks before, and I wondered how the jacks make contact with the ground The pry block is made in the form of a chassis, with a surface on the bottom. I don’t know what to do with the ground surface? Should the surface be leveled to make contact with the chassis, or should several bottom plates be welded to the ground to ensure point contact with it? There are pipes connecting the various pry blocks, and thermal expansion occurs; can the pry blocks be fixed in place? How to fix it?
In accordance with the requirements for equipment installation, foot screws are generally used; after leveling and aligning with shims, grouting is carried out a second time
For the bottom pry bar of prying equipment, it is generally required that the support strength can be achieved with load at all four corners, but this should be verified with the designer. Using shims at the four corner points of the foundation is usually sufficient to provide support and bear the load. As for fixation, welding or bolt fixation can be used.
Leveling of the jack block foundation, followed by hardening treatment; Add foot bolt holes using shims; secondary grouting is sufficient ; Flange connections can be used between devices ;