深层水泥搅拌法加固引桥地基效果分析

依托天津某引桥地基加固工程,采用有限元法对该工程进行了数值模拟,并将数值模拟结果与现场实测数据进行了对比分析。结果表明,土压力和孔隙水压力的数值计算结果与实测结果符合较好,证明了数值模型的合理性;变形计算结果表明,深层水泥搅拌法很好地控制了地基变形,证明了该方法的有效性。

Analysis on Effect of Cement Deep Mixing Method for Ground Improvement for Approaches

Based on an actual project of cement deep mixing for the ground improvement of approach in Tianjin, numerical study was performed with finite element method. The simulation result was compared with the field monitoring data. The result showed that the calculated value of soil pressure and pore water pressure from numerical model matched the value from field monitoring fairly well. This proved the reasonableness of the numerical model. The calculated result of displacement showed that the cement deep mixing method can control the displacement of ground well. This proved the effectively of this ground improvement method.