Structural transformation and reinforcement method for construction underground diaphragm wall in existing underground building

• Main Authors: DENG WENTAO, ZHANG BANGCHAO, WEI JINGSHEN, LI JIANJUN
• Format: Patent
• Language: Chinese; English
• Published: 10.09.2021
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a structural transformation and reinforcement method for constructing a foundation pit diaphragm wall in an existing building. The structural transformation and reinforcement method for constructing the foundation pit diaphragm wall in the existing building comprises the steps that a partition wall and a diaphragm wall guiding wall are newly made in the building, and a rib wall is constructed to be tightly attached to the back of the partition wall to conduct transformation on the existing structure in an overlapping area of a deep foundation pit and a surrounding building; grouting reinforcement is conducted on the underground diaphragm wall in a certain grooving depth range from a building bottom plate, all-round scaffold reinforcement is conducted on all floors of floors in the building and temporary profile steel supports are installed in newly-made partition walls on the two sides for top supporting, so that the existing structure is reinforced; the structure floors in the undergr