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本文对松散击实火山岩风化坡残积土开展了等压固结排水和不排水剪、偏压固结常剪应力排水剪试验，揭示了该类土的应力应变特性，得到了临界状态线。在此基础上，分析了击实填土边坡在暴雨条件下的破坏机理。
In this paper, tests on isostatic consolidation drainage and undrained shear and bias consolidation shear stress drainage shear tests on loosely weathered volcanic weathering slope residual soil are carried out. The stress-strain characteristics of this soil are revealed and a critical state line is obtained. On this basis, the failure mechanism of compacted fill slope under heavy rain conditions is analyzed.