北掌水库左坝肩湿陷性处理措施及施工方案

Treatment Measures for Collapsibility of the Left Abutment of Beizhang Reservoir and Construction Scheme

常用的湿陷性黄土地基的处理方法包括:垫层法、预先浸水法、重锤夯实法、强力夯实法及挤密桩法。针对北掌水库左坝肩湿陷性问题,文中根据本工程的湿陷性黄土特性,通过对上述方法进行分析比较,最终选定了素土挤密桩法处理方式,并阐述了素土挤密桩的施工方案。

The commonly used methods of collapsible loess foundation treatment are cushion layer method,preimmersion method,heavy hammer tamping method,strong tamping method and compaction pile method.In view of the problem of the collapsibility of the left abutment of Beizhang Reservoir,this paper compares and analyzes the above methods,according to the characteristics of collapsible loess in this project.Finally,this paper selects the treatment method of plain soil compaction pile,and expounds the construction scheme of plain soil compaction pile.