底部出料振冲法在地基处理工程中的应用  

Application of bottom feed vibroflotation method in foundation treatment

作　　者：张广彪 卢鹏云 朱晓勇 ZHANG Guang-biao;LU Peng-yun;ZHU Xiao-yong(Beijing Vibroflotation Engineering Machinery Co.,Ltd.,Beijing 100079,China)

机构地区：[1]北京振冲工程机械有限公司,北京100079

出　　处：《地基处理》2020年第3期245-254,共10页Journal of Ground Improvement

摘　　要：底部出料振冲法是在传统振冲法的基础上,填充材料经由振冲设备附属的下料管道直接到达制桩的实时孔底位置,并进行碎石桩或砂桩制桩的振冲法。相较于传统振冲法,底部出料振冲法减少了石料和水资源的使用量、减少了污水和泥浆的产生、提高了施工质量和施工效率,可实现绿色环保施工。通过工作机理、工艺特点、施工效果、适用范围的介绍和工程实践的验证,表明底部出料振冲法水下施工能力强,能够分别实现全过程的干法施工、湿法施工、干湿结合施工,满足各种复杂条件下的施工要求,具有广阔的市场应用前景。Based on the traditional vibroflotation method,the filling materials of the bottom feed vibroflotation method directly reach the bottom position of the pile through the pipeline attached to the vibration equipment to make gravel piles and sand piles.In comparison with the traditional vibroflotation method,the bottom feed vibroflotation method greatly reduces the waste of stone,the use of water resources,the generation of sewage and mud.It also improves the construction quality and efficiency,thereby it is a kind of green construction.Using engineering practice,this paper revealed its working mechanism,technological characteristics,construction effect and application scope.The results show the bottom discharge vibroflotation method is capable for the underwater construction,and also it can realize dry construction,wet construction and dry-wet combined construction.Hence,it can meet the construction requirement under various complicated conditions,which has broad market application prospects.

关 键 词：底部出料 振冲法 地基处理 

分 类 号：TU47[建筑科学—结构工程]