水泥搅拌桩单桩及复合地基承载力特性分析

Research on Bearing Capacity Characteristics of Single Pile and Composite Foundation of Cement Mixing Piles

摘要:

针对软土地基的特点，采用水泥搅拌桩复合地基对路段进行处理，以减少工后沉降、提高地基承载力。以莆田市涵江区火车站站前道路建设项目为依托，分析水泥搅拌桩布置间距、桩径、桩长、水泥土强度等因素对单桩及复合地基承载力特征值与路基沉降的影响，以达到合理优化设计参数、在实际工程中节约成本的目的。

Abstract:

Aiming at the characteristics of soft soil foundation, the cement mixing pile composite foundation is used to treat the road section in order to reduce the post-construction settlement and to improve the bearing capacity of foundation. Relying on the road construction project in front of the railway station in Hanjiang District of Putian City, the influence of factors such as the arrangement spacing of cement mixing piles, pile diameter, pile length and cement soil strength on the characteristic value of bearing capacity of single pile and composite foundation and the subgrade settlement is analyzed to achieve the goal of reasonable optimization of design parameters and cost saving in practical projects.