双向水泥土搅拌桩在平原湖区软土地基加固处理中的应用

Application of Bidirectional Cement Soil Mixing Pile in Reinforcement Treatment of Soft Soil Subgrade in Plain Lake Area

双向水泥搅拌桩是众多软土地基处理中有效的一种方法,与传统的地基处理方法相比,效果明显。依托武汉城市圈环线高速公路孝感南段实际工程,对平原湖区软土地基进行加固处理。通过对双向水泥土搅拌桩的水平位移、沉降监测数据及其处治软土地基效果分析,结果表明:双向水泥土搅拌桩具有桩身搅拌均匀、成桩质量好、强度高等优点,其承载能力及工后沉降均满足设计和规范要求,经济效果显著,具有很好的推广前景。

The bidirectional cement soil mixing pileisone of effective methods to treat the soft soil subgrade,and its effect is obvious by compared with the conventional subgrade treatment method.Relying on the practical project of Xiaogan South Section in Wuhan City Ring Expressway,the article introduces the reinforcement treatment of the soft soil subgrade in the plain lake area According to the analysis of the horizontal displacement,settlement monitoring data and soft soil subgrade treatment effect of bidirectional cement soil mixing pile,the result shows that this kind of pilehas the advantages of even mixing of pile body,good quality of finished pile and high strength of pile Its bearing capacity and post- construction settlement all satisfy the design and specification requirements.Its economic effectis obvious.This kind of pile has the good promotion prospect