Terzaghi, the mechanism of improving the soft ground by vacuum well-point dewatering and preloading and the change of effective stress and effective reinforcement depth were studied.

It is applicable to such test as drying, heat treatment, etc.of articles under vacuum conditions in industrial and mining enterprises as well as in medical colleges and scientific research institute.

The vacuum technology will protect your skins during transportation from auction house to dressing plant and save cost on transportation as well.