介绍由广东省水利水电第二工程局基础一公司于１９９５年施工的广州日升大厦深基坑支护方案的优化设计。采用有限单元的数值解法，运用微机设计，最后采用非均匀配筋的人工挖孔桩加预应力锚杆支护方案。比按原双排人工挖孔桩设计方案节省投资５０％，且工期短、效果好。 The optimization design of the deep foundation pit support scheme of Guangzhou Risheng Building, which was constructed in 1995 by the foundation company of Guangdong Water Resources and Hydropower Second Engineering Bureau, was introduced. The finite element numerical solution method was adopted and the design of the computer was used. Finally, a manual digging pile with uneven reinforcement and a prestressed anchor support scheme were adopted. Compared with the original double-row artificial digging pile design scheme, it can save investment by 50%, and the construction period is short and the effect is good.