There are many books on the history of foundation pit support research that can be referred to: " Foundation Pit Supporting Technology ": published by China Building Industry Press in 2006, it is a relatively authoritative textbook on foundation pit supporting technology in China. It introduced the design, construction and management of foundation pit supporting engineering in detail. 2. Underground Engineering Support and Dewatering: published by China Building Industry Press in 2008, it is a textbook that systematically introduced the underground engineering support and drainage technology, covering the theory and practical experience of foundation pit support, deep foundation pit drainage, underground water level control, etc. 3. Case Analysis of Foundation Pit Supporting Engineering: published by Tsinghua University Press in 2011, it is a book on foundation pit supporting engineering based on actual case analysis. It details the design, construction and management of different types of foundation pit supporting engineering. 4 " Basics of Civil Engineering Investigation and Design ": published by Tongji University Press in 2005. It is a textbook on civil engineering investigation and design, which also includes the relevant content of foundation pit support engineering. 5. Construction Management of City's Basic Installations: published by China Construction Industry Press in 2008, it is a book on the construction management of city's basic infrastructure projects, covering the theoretical and practical experience of construction management, quality control and safety management of foundation pit supporting projects. These are some of the more representative books on the history of foundation pit support research. Of course, there are many other books for your reference.