石家庄至磁县段改扩建工程特殊地基处理方案

Special Foundation Treatment Scheme for Reconstruction and Extension Project of Shijiazhuang-Cixian Section

石家庄至磁县段改扩建工程沿线分布有软土、膨胀土、淤泥质粘土,旧路基经多年运营,沉降已稳定,新旧路基的不均匀沉降问题是地基处理的重点。针对一般拼宽路基、膨胀土路基、软土路基提出科学、可行的处理方案;对灰土垫层、土工合成材料、沉降及水平位移观测提出具体要求、该方案可供同类工程参考。

There are soft soil,expansive soil and silt clay along the reconstruction and extension project of Shijiazhuang-Cixian Section.After years of operating,the settlement of old roadbed is stable,and the differential settlement of new and old roadbed is the key point of roadbed treatment.In allusion to common splicing roadbed,expansive soil roadbed and soft soil roadbed,it puts forward scientific and feasible treatment options.For dust cushion,geosynthetics,settlement and horizontal displacement observation,it makes a specific request.This scheme can provide reference for similar projects.