全夯式扩底灌注桩在高层建筑基础中的应用

Application of all-course ram-compaction pile in the high-rise building foundation

介绍了南昌地区某高层住宅基础采用全夯桩替代嵌岩桩的设计过程。与传统嵌岩桩相比,全夯桩具有施工工艺简单、施工速度快及工程造价低等优点。并对全夯桩进行了桩基检测及沉降观测,结果表明其桩身质量、桩基承载力及桩基沉降均满足规范要求,从而验证了全夯桩作为高层住宅基础的安全可靠性和经济合理性,拓宽了全夯桩在高层建筑基础中的应用范围。

The design of a high-rise residential foundation in Nanchang was introduced and all-course ram-compaction pile was used instead of rock-socketed pile.Compared with the traditional rock-socketed pile,all-course ram-compaction pile has some advantages such as simple construction process,fast construction speed and low construction cost.The results of pile testing and settlement observation can meet the requirements of specification in pile quality,pile bearing capacity and pile settlement.So the all-course ram-compaction pile used in the high-rise residential foundation is proved to be feasible in safe reliability and economy rationality.The all-course ram-compaction pile can be further applied in the high-rise building foundation.