Construction method of waterproof curtain and pressure adjusting system

• Main Authors: YAO QINGSONG, SUN ANDONG, PENG TAO, CHENG XINYE, ZENG JUNHUA, GENG SHUAI
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2022
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; SOIL SHIFTING; TESTING; UNDERGROUND OR UNDERWATER STRUCTURES

A construction method of a waterproof curtain comprises the following steps that S1, lofting construction is conducted, specifically, enclosure center lines of a stirring pile and a jet grouting pile are lofted through a measuring instrument, and drilling positions of the stirring pile and the jet grouting pile in the sequential meshing state are drawn; s2, mixing pile construction, wherein a three-shaft mixing pile machine is adopted to conduct mixing pile sleeving and driving construction at the drilling position of the mixing pile; s3, jet grouting pile hole forming is conducted, specifically, drilling is conducted between every two adjacent stirring piles, and formed holes penetrate through the adjacent sides of the two adjacent stirring piles; s4, construction of a jet grouting pile, wherein after a drill rod and a drill bit of a jet grouting pile machine are put down in the formed hole to the designed depth, grouting is conducted, and the drill rod is lifted; in-hole pressure adjustment, the pressure in