排桩内支撑基坑支护优化方案设计研究

DESIGN AND RESEARCH ON OPTIMIIZATION SCHEME OF FOUNDATION PIT SUPPORT WITH INTERNAL SUPPORT OF ROW PILES

结合东津沱小学教学楼基坑实际工程情况,综合分析现有文献和标准,提出了优化设计方案。该方案主要包括支护桩的桩长、桩径和桩间距的优化以及内支撑位置的优化。在内支撑位置的优化设计中,考虑了不同深度处土壤的力学特性和内支撑的施工难度,最终确定了最优的内支撑位置。通过对设计方案的力学分析和计算,证明了所设计的排桩内支撑基坑支护方案的结构稳定性和可靠性,并在实际施工中取得了良好的效果。

Based on the actual engineering situation of the foundation pit for the teaching building of Dongjintuo Primary School,an optimized design plan was proposed through a comprehensive analysis of existing literature and standards.This plan mainly includes the optimization of the pile length,pile diameter,and pile spacing of the support pile,as well as the optimization of the internal support position.In the optimization design of the internal support position,the mechanical characteristics of the soil at different depths and the construction difficulty of the internal support were considered,and the optimal internal support position was ultimately determined.Through the mechanical analysis and calculation of the design scheme,the structural stability and reliability of the designed row pile inner support foundation pit support scheme are proved,and good results have been achieved in the actual construction.