静压PHC管桩穿越卵石层引孔施工技术探讨

Discussions on the Construction Technology of Guiding Hole for Jacked-in PHC Pipe in Pebble Layer

本文结合云霄翔球广场一期工程静压PHC管桩施工实例,对2#楼主楼采用先引孔后压桩法施工技术和施工工艺,使桩端穿过砂层及卵石层进入持力层深度及有效桩长满足设计及规范要求,以保证施工质量和工期。

In this paper, the construction case of Jacked - in PHC Pipe applied in the first phase of the Yunxiao Flying Globe Square project is discussed. Ow-ing to the application of pressed piles by guide holes to the main building 2#, the penetration depth in sand layer and Pebble Layer and the effective pile length meet the design requirements and norms. Also the construction quality and time limit for the project are ensured.