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以郑州市某深基坑工程为依托,系统地阐述了深基坑支护结构设计的基本理论、设计原则、计算方法,经计算确定了支护结构的设计参数,包括:桩的最小入土深度,桩身最大弯矩,桩身配筋,锚索长度及间距,设计结果通过了整体滑移失稳验算,抗隆起验算以及理正验算,证明支护结构设计安全合理。
Based on a deep foundation pit project in Zhengzhou City, the basic theory, design principle and calculation method of deep foundation pit supporting structure design are systematically expounded. The design parameters of the supporting structure are determined by calculation, including the minimum depth of pile entry , The maximum bending moment of pile body, the reinforcement of pile body and the length and distance of anchor cable, the design results have passed the verification of overall slip and instability, the calculation of anti-swelling and the calculation of rationality. It proves that the design of supporting structure is safe and reasonable.