摘要
结合工程实例总结了特殊地质条件下,山地型软土地层中采用微型钢管桩围护结构进行人工挖孔桩的施工方案,并对微型钢管桩围护结构的设计、施工顺序及技术要点进行了阐述。实践证明,该微型钢管桩围护结构施工方案缩短了工期,降低了经济投入,提高人工挖孔桩的施工安全度,对特殊地质条件下山地型软土地层的工程处理效果良好,对同类地层条件下的工程项目地基处理提供了参考,值得推广。
The small diameter steel tubes were used as a supporting structure of manually excavated caissons in mountain soft soil strata.The design and construction sequence of the small diameter steel tube supporting structure are introduced.The results indicate that this method can effectively reduce the construction time,and cost while increase the safety.
出处
《土工基础》
2017年第5期543-545,553,共4页
Soil Engineering and Foundation
关键词
微型钢管桩
人工挖孔桩
垂直度
无缝钢管
围护结构
Small Diameter Steel Tube Supporting Structure
Manually Excavated Caissons
Plumb
Seamless Steel Tubes
Supporting Structure
