APPLICATION RESEARCH ON CONSTRUCTION TECHNOLOGY OF LARGE DEEP FOUNDATION PIT UNDERGROUND CONTINUOUS WALL
Taking a construction project in a certain city as a research case,this paper elaborates on the project overview and outlines the design of deep foundation pits.It proposes an application plan for using continuous wall construction and designs new application methods for continuous wall technology.After leveling the soil layer,determine the construction position of the guide wall for the continuous wall,control the excavation sequence of the groove section according to the position of the guide wall,prepare steel reinforcement cages according to the construction sequence of the groove section,and lift the steel reinforcement cages into the groove section.After installation,prepare concrete materials,pour concrete uniformly,and form the continuous wall into a whole,completing the construction of the deep foundation pit underground continuous wall.The experimental results show that using the deep displacement and top settlement of underground continuous walls as testing indicators,under the application of the new method,the maximum displacement and maximum settlement are both lower than the design requirements,which meets the construction standards of large-scale deep foundation pit engineering and has specific application value.
deep foundation pitunderground diaphragm wallhorizontal displacementsettling capacity
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