太湖围湖区双向水泥搅拌桩施工技术研究

Research on Construction Technology of Bidirectional Cement Mixing Pile in Taihu Lake Watershed Area

太湖围湖区修建高速公路,采用双向搅拌桩处理深厚黏土覆盖层下深层软土。围湖区地质复杂,通过施工设备调整、施工工艺参数调整等措施,提高搅拌桩成桩质量。研究表明,在太湖围湖区施工双向水泥搅拌桩,钻进速度在超常规要求的情况下,能更好地达到成桩质量。

In the construction of expressway around Taihu Lake,bidirectional mixing pile is used to treat deep soft soil under deep clay overburden.Because of the complex geology in the surrounding lake area,the quality of mixing piles can be improved by adjusting construction equipment and technological parameters.The research shows that the construction of bidirectional cement mixing piles in Taihu Lake enclosure area can better achieve the quality of piles when the drilling speed exceeds the conventional requirements.