Optimization Analysis of Pile-Anchor Support Design for Deep Foundation Pit of a Commercial Complex Basement
Deep foundation pit engineering is an important field in hazardous projects,which is difficult and risky.By optimizing the design of reasonable foundation pit support,it can save costs while ensuring quality and safety.Taking the foundation pit support design of a commercial complex basement as an example,the support design scheme adopts the form of pile anchor support structure.By changing the design parameters of steel sheet pile spacing,anchor rod spacing,anchor rod inclination angle,and anchor rod length,this study analyzes the influence of internal force deformation,embedded stability,and ultimate bearing capacity of anchor rods on pile anchor support structures.The result shows that it is more reasonable when the bolt spacing of 4# steel sheet pile is 2m,and the spacing of 6# steel sheet pile is 2.1m.In the case of thick silt layer,the tilt angle of bolt is more reasonable at 30°～35°.In this inclination range,the length of the bolt is about 26m.By optimizing the design parameters,the design objectives of safety,economy and reliability can be achieved.It provides reference for similar deep foundation pit design.
dangerous projectsdeep foundation pitpile-anchor supportdesign optimization
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