A pressure from the high pressure grouting equipment and drilling is too large, will lead to pressure loss, the pressure gauge reading is above the injection hole on the unit: [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] grouting common problem of governance 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 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 Jet rig image, 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. Churning process, often there is a certain amount of soil particles, along with a portion of the slurry wall grouting pipe out of the ground, through the observation of oozing slurry jet grouting anchor rig sales, can keep abreast of the soil conditions, determine spin roughly effect spray parameters and determine the reasonableness of the time and so on, based on experience, take the pulp (with a soil particles, water and slurry) of less than 20% grouting is normal, more than 20%, or completely take slurry, should be identified Cause promptly take appropriate measures.