天然双层软土地基浅层处理现场试验研究

Natural double soft soil foundation shallow layer treatment field experiment research

通过4个试验段的现场试验说明:对于基于硬壳层的天然双层软土地基,应保持完好的硬壳层,根据不同的路堤高度和硬壳层厚度,分别采取不同的浅层处理方案,本试验分别采取了土工格室+超载预压和土工格栅+超载预压处理方案,测试结果表明,该设计方案合理,满足路堤的稳定性要求。

Based on 4 experimental sections, the field experiments show that, as for the natural double soft soil foundation of hard crust, it better to keep fair hard crust, according to different embankment height and hard crust thickness, adopts different shallow layer treatment schemes respectively, and this experiment adopts geotechnical grid, surcharge preloading and gcotechnical grille, and surcharge preloading treatment scheme respectively. Testing results show that, this design scheme is reasonable, and can satisfy the stability requirement.