If the foundation is not strong enough to prevent the construction of buildings by ground subsidence caused by unstable crack accident, before the need for Soft Foundation Treatment of Soft Foundation Processing Introduction to the settlement to become strong enough to improve the consolidation of soft soil foundation and stability to the design requirements, this process is called soft foundation treatment, also known as soft foundation treatment. Soft Ground Treatment Method used its characteristics, one composite foundation law: cement mixing pile, DJM, gravel piles; Disadvantages: higher cost 2, drainage consolidation method (1) plastic drain Associated Heaping: Duration long soft foundation treatment, the effect is not satisfactory (2) Plastic drainage plate vacuum preloading: Duration 90 days later, the effect is easily controlled, low-cost 3, Dynamic Compaction: Disadvantages: the quality is not controllable, easy to form a "spring soil" 4, drainless sand cushion vacuum preloading: The new soft ground treatment equipment manufacturers, the cost of low-cost, short construction period than the plastic drainage plate vacuum preloading save one-third of the effect is reliable mortar pump after work for attention: 1 run After the pump and pipes must be cleaned soft-processing equipment models, can not stay more than ash. 2. Clean the grout special attention at the ball valve housing base soft foundation treatment, should be clean, in order to ensure the valve is working properly. 3. The ball valve or piston found broken or worn and should be replaced.