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以炼钢厂房的转炉桩筏基础设计为工程背景,采用Poulos解分析桩土刚度,厚板理论分析筏板,计算得到桩筏基础的总体沉降、差异沉降、桩顶反力、筏板内力等结果。在准确分析的前提下,对桩数、筏板厚度进行优化,板厚由3 m优化为2.3 m,同时减少6根桩,节省造价18.36%,且优化结果能够满足规范的要求。本工程转炉设备已安全投产,优化设计取得了良好经济效益。
Based on the engineering design of converter piled raft foundation in steelworks, Poulos solution is used to analyze the pile-soil stiffness and the slab theory to analyze the raft. The total settlement, differential settlement, top reaction force and internal force of raft are calculated. result. Under the premise of accurate analysis, the number of piles and the thickness of raft are optimized, and the thickness is optimized from 3 m to 2.3 m. At the same time, the number of piles is reduced by 6 piles, saving 18.36% of the cost, and the optimization result can meet the requirements of the specification. The project converter equipment has been put into operation safely, and the optimized design has achieved good economic benefits.