黄河某滩区迁建安置区地基处理方案分析

Soil Improvement for a Relocation Residential Building Project in Yellow River Fluvial Area

黄河某滩区迁建安置区,工程规模较大,地基主要受力层为软弱液化土层。根据拟建物结构、荷载、抗震要求,结合工程建设环境,选择合理的地基处理方案,既可保证处理效果,又可方便施工,缩短工期,大幅度降低工程造价。工程建设单位应重视并提前进行地质勘察工作,选择合理的地基处理方案,以免因工期等人为因素,使地基处理方案选择受限。地基处理施工单位,应遵循施工技术规程,严格按照地基处理方案进行施工,遇到特殊情况,及时与勘察、设计单位沟通。

A large relocation residential building development project in Yellow River fluvial area is on the soft subsurface soils.Under the design earthquake intensity,the subsurface soils are also susceptible to be liquefiable.This paper presents the selection of the soil improvement program that could meet the structural,loading and seismic requirements and is also cost effective,simple construction and meets the construction schedule.The owner and the design consultant should pay attention on the subsurface conditions and carefully select the ground improvement method(s).The contractor should follow the design criteria and the code requirements in the implementation of the ground improvement method(s).When an unexpected condition is encountered during the construction,the effective communications among the geotechnical investigation consultant,building design consultant and the owner are critically important.