[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] high pressure grouting pile foundation reinforcement construction of high pressure slurry pump slurry feed: open the high-pressure pump slowly until all normal slurry feed to the hole, the stable pump pressure and pump capacity, and In situ rotating spraying 30 seconds, the slurry can fully meet the bottom of the hole. Gunite rotation Improvement: After confirming stable slurry reaches the bottom of the hole pump pressure, pump volume, and start rotating lift, jet grouting rig track parameters, the nozzle rotation speed control in 18-20r / min, to enhance the speed control in 20-30㎝ / min , adjusting the parameters in case of changes in the formation. Take slurry recharge: High jet construction process should be carefully observed changes in the amount of oozing slurry, when the amount of abnormal plasma should take good record and look for reasons, Jet has been completed in time to fill the hole until the pulp slurry surface is no longer under Shen. Acceptance Visa: When the acceptance qualified after the above work is completed before entering the work under a pile of construction. Construction sequence: Churning Pile should pile position surrounding the construction sequence, after the central portion of the hole. [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] Churning Pile Notes bis 1. Construction of two adjacent intervals of not less than 48h, a pile of construction by the dozen jump two piles. 2. The quality should be checked before construction cement, etc. Mixed, the pile position, pressure gauge, precision and sensitivity of the meter, track Jet rig construction, performance, high pressure jet grouting equipment and the like. 3, the jet grouting process, Baodi track jet grouting rig, mud spillover should observe the situation, and when you understand the soil conditions. Oozing slurry grouting less than 20% of normal, more than 20% or completely take slurry, should investigate the cause and take appropriate measures. If the strata have a greater gap caused not take slurry, can be mixed with the right amount of accelerator in a slurry or increase the grouting, such as take slurry is too large, can reduce the amount or speed grouting lifting and rotation speed, nozzle diameter can be reduced to improve the injection pressure.