Nowadays it is observed overpopulation of the large cities. That entails shortage of the space. This is the main problem of modern megalopolises. This problem requires a serious approach for finding its safe solution. The successful use of " slurry wall " technology helps in underground construction. The purpose of the article is to revealing the advantages and disadvantages of technology "slurry wall". In the theoretical part of the study the main issue was classification of сonstruction technologies, and also its advantages and disadvantages. Based on the analysis of scientific articles considered the classification of technologies, there are 2 methods of making a monolithic reinforcement wall: a dry process and a wet way. The recommendations made as a result of this study have been implemented decrease in negative impact on the environment – this is the main shortcoming of "slurry wall".