With the increasingly fierce market competition, EPC projects have entered the era of meager profits. The optimization method of civil design has encountered a big bottleneck，It can no longer meet the needs of the company's market competition and cost reduction and efficiency improvement. Steel structure architectural consulting, design and Research Institute gives full play to its technical advantages，Focus on the bid and construction drawing design stage of Jinan Yiyatong supply chain industrial park project (phase I)，According to the project characteristics, construction period requirements, cost and other aspects, the "new fabricated retaining wall" is developed，The retaining wall is simply supported horizontally, which breaks through the vertical cantilever stress mode of the traditional retaining wall.Reduce the amount of reinforcement and concrete by about 30%; Convenient pipeline embedding and maintenance free; And it can be fabricated, prefabricated synchronously in the factory, and the construction speed is fast. The patent achievement has been successfully transformed in the project, and the direct economic benefit is more than 3 million yuan. The steel structure architectural consulting design and Research Institute has been committed to the innovative application research of new technology, which has expanded new ideas for the optimization of civil design.