圆形人工挖孔桩护壁厚度分析  

Thickness Analysis of Retaining Wall of Circular Manual Excavation Pile

作　　者：郭旭 GUO Xu(Fujian Tongli Architectural Design Institute,Sanming 366000)

机构地区：[1]福建同力建筑设计院有限公司,福建三明366000

出　　处：《福建建筑》2019年第6期45-49,共5页Fujian Architecture & Construction

摘　　要：人工挖孔桩在我国现有设计施工技术条件下仍是重要的桩基类型之一,但近年来人工挖孔桩护壁破坏造成塌孔的施工事故时有发生,护壁厚度不足可能是造成塌孔的主要原因之一。文章分析了传统人工挖孔桩护壁厚度设计时土压力取值、护壁厚度计算模型、材料设计强度取值三方面存在的问题,提出了切实有效的圆形挖孔桩护壁厚度设计计算方法。The artificial digging pile is still one of the important types of pile foundation under the existing design and construction technology conditions in China.However,in recent years,the collapse accidents caused by the destruction of the retaining wall of Manual Excavated Piles often occur,and the insufficient thickness of the retaining wall may be one of the main reasons for the collapse of the retaining wall This paper analyzes the problems of soil pressure value,wall thickness calculation model and material design strength value when designing traditional artificial digging pile retaining wall thickness,and effective calculation method for wall thickness design is proposed.

关 键 词：人工挖孔桩 圆形 护壁厚度设计 

分 类 号：TU4[建筑科学—土工工程]