插板降水强夯置换法在处理砂混粘性土地基中的应用  

Application of Precipitation Dynamic Consolidation Replacemen with Plastic Drainage Plate in the Treatment of Sand Mixed Cohesive Soil Foundation

作　　者：范莹莹[1] 朱洪涛[1] 陈思周[1] 赵锦[1] 

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222

出　　处：《港工技术》2016年第1期94-97,共4页Port Engineering Technology

摘　　要：对于介于软粘土和砂性土之间的砂混粘性土或粘性土混砂地基,因土体颗粒细、渗透性差,孔压消散慢,土体是否可以直接承受强夯施工,保证置换体形成足够强度是方案成败且达到较高加固标准的关键。设计通过进行试验区现场试验,得出打设塑料排水板+降水强夯置换处理工艺可以取得比较好的加固效果,达到工程使用要求。In between the soft clay and sand soil between sand mixed clay or clay mixed sand foundation, due to soil grains fine, poor permeability, and pore pressure dissipation slow soil can directly under dynamic compaction construction, ensure the replacement body form a sufficient strength is the key of success or failure of the scheme. Through the field test of the test area, it is concluded that the plastic drainage plate and precipitation dynamic consolidation replacement treatment process can achieve a better effect, and achieve the requirements of engineering application.

关 键 词：砂混粘性土 地基 塑料排水板 降水强夯置换 

分 类 号：TU472.31[建筑科学—结构工程]