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低能量强夯试验在软弱地基中的研究与应用拓展了强夯法的应用领域,同时使软弱地基处理多了一种选择方案。通过软土路基低能量强夯处理现场试验,分别采用试验区夯沉量、试验区内外地表沉降量及试验区内不同深度孔隙水压力增长与消散监测,并运用平板静载荷试验验证处理路基的地基承载力。试验结果表明,低能量强夯主要影响浅层软基的工程特性,强夯引起的超静孔压消散时间一般为5～15 d,由于能级低,施工对周边环境的影响较小,且能满足一般路堤承载要求。
The research and application of low-energy dynamic compaction test in soft ground expands the field of application of dynamic compaction, and at the same time makes the selection of soft ground more optional. Through the low energy dynamic compaction treatment of soft soil subgrade in the field test, respectively, the experimental area of the amount of settlement, the test area within the surface subsidence and the test area at different depths of pore water pressure growth and dissipation monitoring, and the use of plate static load test validation of roadbed Bearing capacity of foundation. The test results show that low energy dynamic compaction mainly affects the engineering properties of shallow soft ground. The dissipation time of super-static pore pressure caused by dynamic compaction is generally 5-15 days. Because of low energy level, the construction has less impact on the surrounding environment Can meet the general embankment bearing requirements.