Soft Ground Treatment Methods: sand cushion method such as mechanical design and construction, in determining the thickness of sand mats, you should consider the weight of machinery, tire contact pressure on the ground, eccentricity and soft soil surface strength. Table 1 shows the standard sand cushion thickness. On the very soft ground double-pipe jet grouting rig, just sand cushion to ensure the passage of large construction machinery multifunction Jet rigs often require thick sand cushion, it is not economical, so often and surface drainage or dressing pad materials, and Law. Fill a large area and long distance drilling drainage one Jet spray rig is expected to have multiple groundwater seepage, if the only mountain sand for sand cushion, can not obtain sufficient drainage effect, it should be used to set the blind ditch, sand cushion inside Drainage should be short not long distance. Sludge treatment [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product - high-pressure pump high-pressure pump] introduced: high-pressure pump to provide high voltage power equipment for high pressure rotary jet mud, used in construction, highways and other foundation strengthening reinforcement, can be used for high-pressure water jet assisted rock off the coal, downhole hydraulic prop for the fluid, water conservancy and expanded metal anchor bolt pumping high pressure water, large underground pipeline dredge dredging cleaning.