[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] cement mixing pile deep cement mixing pile, suitable for the treatment normally consolidated silt and silty soil, plain fill, silt, clay soil loose and free flowing groundwater sand and other soil. Reinforcement depth is generally greater than 5.0m. During the construction method, according to the state of the use of reinforcement Tonghua rotary jet pile, it can be divided into the slurry mixing method (wet high pressure jet grouting pile power, that the present rules of deep water slurry mixing method) and powder mixing (dry Act) of two construction types. According to the site engineering geological conditions and superstructure load requirements and the stress state of cement soil pile, cement deep mixing pile plus solid form, can be used as envelope excavation retaining wall, seepage curtain; composite foundation bearing the vertical; bulk cement stabilized soil. [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] grouting common problem of governance: one, from the high-pressure grouting equipment and drilling is too large, will lead to the loss of high pressure jet grouting pile pressure type, high gauge reading the pressure of the injection hole on the unit so that the body is less than the test piles consolidation value. Governance measures: distance high-pressure grouting equipment and drilling control within 40m. Second, note the slurry uneven mixing the slurry with a rare thick, resulting in uneven pile strength. Control measures: the slurry mixing time control is not less than 3min, storage slurry, stirring constantly high pressure jet grouting pile manufacturers, to prevent precipitation. Third, for various reasons, the injection process is interrupted, the pile will naturally precipitate slurry hole, continue to enhance the spraying will occur at the level of the cement slurry Minting segregation, so that the low intensity zone. Governance measures: lap length is not less than 0.2m, interruptions recovery injection, spray complex whereabouts lap length is not less than 0.5m.