Abstract
In building foundation and substructure construction, ensuring safe production necessitates enhanced support measures for deep foundation pits to control deformation, collapse, and cracking of pit wall slopes, thereby preventing safety accidents. The application of interlocking piles in deep foundation pit support construction constitutes an innovation built upon deep foundation pit and slope support technologies such as cast-in-place piles, water cutoff curtains, and row piles. Through mutual interlocking arrangement, the piles form a robust underground wall that accommodates the water sealing and earth retaining functional requirements for various soil layers in deep foundation pit structures. Furthermore, the application of interlocking piles in deep foundation pit support construction fully exploits the advantages of mechanized and modern construction technologies, yielding high production efficiency and safety standards while demonstrating excellent ecological and environmental protection performance.
Full Text
Preamble
Wu Jinlin
China Railway 16th Bureau Group Road & Bridge Engineering Co., Ltd., Beijing 101500
School of Civil Engineering, Central South University, Beijing 101500
Abstract
In building foundation and substructure construction, ensuring safe production requires reinforced support for deep foundation pits to control deformation, collapse, and cracking of pit walls and slopes, thereby preventing safety accidents. The application of secant pile walls in deep foundation pit support represents an innovation built upon technologies such as cast-in-place piles, waterproof curtains, and row pile systems. Through mutual interlocking, the piles form a robust continuous underground wall that satisfies the water sealing and earth retention requirements for various deep foundation pit structures and soil conditions. Furthermore, this approach fully leverages the advantages of mechanized and modern construction techniques, delivering high production efficiency and safety levels while demonstrating excellent ecological and environmental performance.
Keywords: construction engineering; secant pile technology; deep foundation pit support; application study