Study on Earth Pressure of Foundation Pit Excavation by Model Test

As there are more and more high-rise buildings in the big cities, some new foundation pits are usually near old high-rise construction. In this case, foundation pit excavation is an engineering problem which needs to be solved urgently. This paper aims at the problem where the new foundation pit is closing to a high-rise building with a cement fly-ash grave (CFG) composite foundation, though cantilever retaining pile model test, simulate the excavate process, and make a testing system to measure datum in order to research on the characteristics of the earth pressure.