Lifting and reinforcing process for dust-free factory floor

A lifting and reinforcing process for a dust-free factory floor, comprising:

• step one, reinforcing a foundation, comprising following steps:
• step 1:
• determining a depth of a soil layer in an inner settlement area of a factory, and designing a drilling curve from an outer construction point of the factory to the inner settlement area of the factory;
• step 2:
• drilling guiding holes from the outer construction point of the factory, so that the guiding holes lead to a designated location and a designated depth grouting point of the inner settlement area of the factory;
• step 3:
• connecting and communicating grouting channels from the outer construction point of the factory to an inner grouting point of the factory with each other;
• and
• step 4:
• starting grouting from the designated depth grouting point to yield a reinforced foundation;
• step two:
• lifting a settlement area, comprising:
• step 1:
• determining a depth range between the reinforced foundation and a floor of the factory, and designing the drilling curve from the outer construction point of the factory to the inner settlement area of the factory;
• step 2:
• drilling the guiding holes from the outer construction point of the factory, so that the guiding holes lead to the designated location and the designated depth grouting point of the inner settlement area of the factory;
• step 3:
• connecting and communicating the grouting channels from the outer construction point of the factory to the inner grouting point of the factory with each other;
• step 4:
• starting grouting from the designated depth grouting point, so that a subsided factory floor is restored to an original floor elevation;
• and
• step 5:
• after the subsided factory floor is restored to the original floor elevation, stopping grouting, and after slurry is solidified, supplying the slurry to the grouting channels by backward grouting until exiting the grouting channels.