旋挖机配套长护筒成孔技术在软土地层的应用  

作　　者：李永杰 姜杰松 

机构地区：[1]大唐实创(北京)投资有限公司,北京100191

出　　处：《科技创新与应用》2022年第28期177-180,共4页Technology Innovation and Application

摘　　要：介绍旋挖机配套长护筒成孔技术,通过对施工流程、工艺主要控制点和工艺的优缺点等方面阐述,为在上海等厚软土及暗浜发育地区,拟建场地地下障碍物多且类型杂乱,回旋钻机成孔困难,周边建筑物位移控制要求高的工程项目基础桩基施工提供工程参考。This paper describes the holeforming technology of long protective tube for rotary excavator, and expounds the construction flow, control points of technology, advantages and disadvantages of technology, etc., in order to provide engineering reference for the foundation pile foundation construction of engineering project, where there are many underground obstacles on proposed sites for buildings, where it is difficult to form holes by rotary drilling rig, where there are high requirementsfor displacement control of surrounding buildingsin the development area of thick soft soil and hidden ditchesin Shanghai.

关 键 词：钻孔灌注桩 成孔工艺 旋挖钻机 削切 浇筑混凝土 

分 类 号：TU67[建筑科学—建筑技术科学]