Guest
these Workers construct circular concrete walls for underground wells using the caisson construction method. They mark the site, dig a 3-meter pit, place the first concrete section, and dig deeper, causing the concrete to sink. As digging continues, new sections are added, forming a deep cylindrical wall. Groundwater is pumped out during the process. Once the desired depth is reached, the well is sealed with concrete. #interestingfacts #uniquefacts #interesting #unique
