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苏丹某工程钻孔灌注桩桩头缺损原因分析及预防
引用本文:王立新,李鲲鹏. 苏丹某工程钻孔灌注桩桩头缺损原因分析及预防[J]. 岩土工程技术, 2010, 24(1): 48-50,54. DOI: 10.3969/j.issn.1007-2993.2010.01.013
作者姓名:王立新  李鲲鹏
作者单位:天津华北地质勘查局,天津,300100
摘    要:在砂层等不良条件下施工钻孔灌注桩容易出现断桩、缩径、桩头缺损等质量通病。分析了苏丹尼罗河边松散砂层中旋挖钻机施工的钻孔灌注桩桩头达不到设计标高和缺损等事故,逐一分析了事故发生的过程、产生的原因及应吸取的经验教训,提出了相应的预防措施。

关 键 词:桩头设计标高  桩头缺损  原因分析  预防措施

Cause Analysis and Prevention of Damage of Drill Cast Pile of an Engineering Subject in Sudan
Wang Lixin,Li Kunpeng. Cause Analysis and Prevention of Damage of Drill Cast Pile of an Engineering Subject in Sudan[J]. Geotechnical Engineering Technique, 2010, 24(1): 48-50,54. DOI: 10.3969/j.issn.1007-2993.2010.01.013
Authors:Wang Lixin  Li Kunpeng
Affiliation:Wang Lixin Li Kunpeng (Tianjin North Chian Geological Exploration Bureau, Tianjin 300100, China)
Abstract:Common pile quality faults such as pile break, cross shrink, pile end damage are often met in sand stratum. Short of design elevation and damage of drill cast pile in Sudan Nile bank constructed by spin-dig borer are discussed in this paper. Developing process, cause and experience of these pile quality faults are also demonstrated and measurement of preventing fault is put forward.
Keywords:design elevation of pile  damage of pile  cause analysis  measurement of preventing fault
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