Design and Construction of Foundation Pit Support Based on Gradient Section and Deep Pit Under Complex Environment

摘要

This paper discusses the design and construction of foundation pit support based on gradient section and deep pit under complex environment with engineering practice. Proposes in design of foundation pit based on gradient section and deep pit, the landslide revival must be considered according to the slope hydrogeology condition and climate condition (especially the effect of rainfall). Indicates the construction factors such as overbreak, anchor cable tension not in time and the manual short-hole blasting which affects the safety. Discusses the treatment schemes as soil removal for unloading on slope and fill and reverse press, and points out the foundation pit support based on gradient section and deep pit is a integration systems engineering with design-construction-monitor.