钉形水泥土双向搅拌桩软土地基加固中的控制和应用

钉形水泥土双向搅拌桩是处理地基的新型技术,通过改变同心双轴钻杆旋转方向,形成荷载传递规律的变径桩,并且可以根据不同工程的需求,控制钻杆下钻和提升速度、送浆量、进入持力层电流等途径,提高成桩的几率和质量。文章介绍而且探讨了钉形水泥土双向搅拌桩的施工技术的应用,并对质量控制注意事项进行了说明。

The Control and Application of T-shaped Cement-soil Reinforcement Pile in Soft Soil Foundation and Bidirectional Mixing

T-shaped bidirectional soil-cement mixing pile is a new technique of foundation treatment, by changing the concentric double-shaft drill pipe rotation direction, forming a variable cross-section pile load transfer law, and according to different engineering requirements, control rod down and lifting speed, feed pulp, into the bearing layer current channels, improving probability and the quality of pile. This paper introduces and discusses the application of the construction technology of T-shaped bidirectional soil-cement mixing pile, and describes the considerations of quality control.