一般的地脚螺栓是露出地面的,对于某些情况就不适用。例如:有些设备受到上面连接件的限制,不能往上提;有些设备若要往上提,则需拆卸部件,十分麻烦;有些设备很沉重,却又要不时拆移更换。那么这些设备怎样固定在基础上呢?这就需要用暗地脚。暗地脚与一般地脚相反,螺栓是朝下的,是活 General anchor bolts are exposed to the ground, for some circumstances do not apply. For example, some devices are limited by the above connectors and can not be lifted upwards. Some devices may need to be disassembled if they are to be lifted upwards. Some devices are very heavy, but they may need to be removed and replaced from time to time. So how to fix these devices on the basis? This requires the use of dark feet. Dark feet and general feet on the contrary, the bolt is down, is alive