[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] High Pressure Injection Method quality standards use high-pressure jet grouting can be checked against the excavation project requirements and local experience, coring (core or soft conventional coring) , standard penetration test, load test or test methods such as injection wells around inspection, and an engineering test, comprehensive evaluation of observational data and the actual results reinforcing effect. 2 test points should be arranged in the following areas: 1) a representative pile location; site of the abnormal situation 2) under its construction; 3) ground situation is complex, high-pressure jet grouting may affect the quality of the site. 3 Number of test points is 1% of the construction hole number, should not be less than 3:00. 4 Quality Inspection should be in the high-pressure jet grouting carried out after the end 28d. 5 Vertical Bearing Churning Pile Foundation completion and acceptance of, the carrying capacity test should be used to the tomb complex pile load test and load test. 6 load tests must meet the test conditions in the pile strength, jet grouting pile anchor rig manufacturers, and should be in a pile after 28d. Number of tests is 0.5% to 1% of the total stake, and every single project should not be less than 3:00. 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 mud spillover observation, you can keep abreast of the soil conditions determine the approximate effect Jet and When judged reasonable parameters, etc., 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, Qinhuangdao jet grouting pile anchor rig, reasons should be identified promptly take appropriate measures. 1, the flow rate constant and the pressure suddenly drops, Churning Pile craft anchor rig, should check the leakage site, set aside when necessary grouting pipe, check the sealed performance; 2, that there is no risk syrup or intermittent When take slurry, or the Department of soft soil is considered as a normal phenomenon, may be appropriate to re-spray; if there are empty, underground passage near the line, you should not upgrade grouting pipe, continue to take slurry grouting until date, or set aside grouting pipe After the slurry is solidified, the single-pipe Churning Pile anchor rig, re-grouting until take slurry date, using quick-setting slurry, if necessary, to facilitate the solidification in the vicinity of the slurry grouting pipe; 3, take measures to reduce the amount of pulp slurry take over big factor, generally effective range jet grouting incompatible Jet grouting much more than the required amount of slurry due to consolidation;