复杂地质条件下斜桩嵌岩护孔技术  

Hole protecting technology of rock socketed pile under complex geological conditions

作　　者：沈启亮[1] 刘秀宏[1] 张校强 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《中国港湾建设》2014年第8期57-60,共4页China Harbour Engineering

摘　　要：复杂地质条件下,斜桩嵌岩钻孔过程中塌孔是影响施工效率的关键因素,采用单一的护孔方法往往难以奏效。文章通过施工实践,根据不同的地质条件,提出了泥浆护壁、压浆法处理、钢内护筒工艺等有针对性的护孔方法,可供类似工程借鉴。The hole collapse in the rock socketed pile drilling process is the key factors affecting the efficiency of construction under complex geological conditions, using the single method of protecting hole is often difficult to work. Based on the construction practice, we put forward some targeted methods of protecting hole according to different geological conditions, such as the mud supporting, grouting method, and steel tube technology, which can be used for reference to similar projects.

关 键 词：斜桩嵌岩 复杂地质条件 塌孔 

分 类 号：U655.4[交通运输工程—港口、海岸及近海工程]