Construction program and working principle of bored pile construction equipment, Casing drilling rig in place leveling, inspection and acceptance hole mud circulation system settings and flushing the fluid configuration, the final hole detection, hole cleaning, manufacture and installation of the re

Include the construction project and work the principle, drill a hole an equipments with main construction, protect the tube to lay, drill the machine to take seat to adjust even, check to check before acceptance to open the bore, the mud circulatory system constitution with flush the liquid to inst

Including the construction plan and the principle of work, the drill hole pile construction main equipment, protects the tube embedment, the drilling machine takes place the leveling, the inspection approves start the hole, the mud system establishment and the rinse solution disposition, the end hol

Including construction plan and how it works, main equipment of drilling pile construction, pipe laying, drilling rigs in place leveling, open for inspection, acceptance, slurry circulation system configuration sets and washing liquid, final hole detection, clearance holes, making and installation o

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