我国长期来一直沿用将垫铁直接设置在基础上的方法来安装各种工业设备。这种方法有二个难以克服的缺点:一是当基础标高做得偏低,安装设备需要垫高时,会增加垫铁的用量,增加工程费用,影响工程进度;另一是安装一些精密重要设备时,如透平压缩机、轧钢机等,因垫铁与基础面之间的接触精度要求高,在设置垫铁处, For a long time, China has been using the method of installing the horn directly on the foundation to install various industrial equipment. This method has two insurmountable disadvantages: First, when the base elevation is done low, and the installation equipment needs to be elevated, it will increase the amount of horn, increase the project cost, and affect the progress of the project; the other is the installation of some precision important When equipment, such as turbine compressors, rolling mills, etc., due to the high contact accuracy between the horn and the base surface, at the setting of the horn,