[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] operation process 1. Conducted before construction field leveling, slurry trench dug row, good rig positioning. Requirements placed to maintain the level rig, drill pipe held vertically, the inclination of not more than 1.5%. 2. Hole: Hole should be determined according to the geological conditions and rig technology functions into the hole in the standard soil penetration value of less than 40 N in a single tube injection job, grouting pipe can be directly inserted vibration rig; under normal circumstances can be Geological drilling rig into the hole using previously, pore diameter is generally 75 ~ 130mm; when the hole wall easily collapse, should casing. 3. Intubation: The grouting tube into a predetermined depth drilling, grouting pipe connecting joints should be sealed. [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, Dongying sealing curtain pile and rotary shotcrete in place for 30 seconds, sealing curtain self-propelled pile driver, 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 enhance sealing curtain crawler pile driver, nozzle rotation speed control in 18-20r / min, double tube sealing curtain pile, Lifting 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.