人工挖孔灌注桩穿越软土夹层护壁施工工艺技术研究应用  

STUDY AND APPLICATION OF THE CONSTRUCTION TECHNIQUES IN THE BREAST WALL FOR MANUAL HOLE DIGGING PILE CROSSING THE SOFT SOIL STRATUM

作　　者：刘勇[1,2] 李钦 刘彩云 马睿 

机构地区：[1]湖南大学土木工程学院,长沙410010 [2]衡阳天瑞工程检测有限公司,衡阳421001 [3]长沙市建设工程质量监督站,长沙410001

出　　处：《建筑技术开发》2012年第6期46-48,共3页Building Technology Development

摘　　要：人工挖孔灌注桩遇到地质条件变化,需要穿越部分软土夹层时,其护壁施工成为施工中的控制难点,如何保证护壁施工安全、优质、低耗的完成是施工追求的目标。通过工程实例,将施工工艺进行调整改进后,不改变人工开挖工法,使工程质量得到保证,施工安全易于控制,同时工程进度得到保证,对常规人工挖孔灌注桩穿越部分软土夹层的护壁施工方法进行了有益的探索。When the manual hole digging pile encountered the changes of geolgical condition such as crossing the soft soil stratum, the breast wall construction will be the control difficulty in the foundation construction. Guaranteeing the working safety, economy and high quality are the aims to the working units. This paper shows the safety, quality, time limit for a project and the cost could come true by improve on the working procedure in a project example. It can become the supplement of the working means in the the manual hole digging pile crossing the soft soil stratum.

关 键 词：人工挖孔灌注桩 软土 夹层 护壁 施工工艺 

分 类 号：TU753.3[建筑科学—建筑技术科学]