土工基础

›› 2015, Vol. 29 ›› Issue (2): 128-130.

• 工程实录 • 上一篇    

人工挖孔桩中水平裂缝的检测与处理

胡如军，李 强，武 豪   

  1. （深圳市南山区建设工程质量监督检验站，广东深圳 518067 ）
  • 收稿日期:2014-04-16 出版日期:2015-04-20 发布日期:2015-05-04
  • 作者简介:胡如军（1978-）,男,湖北潜江人,工程师,研究方向为桩基检测。

Detection and Sealing off Horizontal Cracks in Manually Dug Caissons

HU Rujun，LI Qiang，WU Hao   

  1. (Nanshan District Construction Quality Assurance and Inspection Station, Shenzhen 518067)
  • Received:2014-04-16 Online:2015-04-20 Published:2015-05-04

摘要： 分析人工挖孔桩水平裂缝产生的原因，采用低应变及钻芯验证检测方法确认水平裂缝的存在，采用高压注浆对水平裂缝进行封闭。提出人工挖孔桩施工应注意的细节以减少水平裂缝的产生。

关键词: 人工挖孔桩, 水平裂缝, 低应变, 高压注浆

Abstract: This paper presents a case history of mitigating the horizontal cracks in the manually dug caissons. The horizontal cracks are detected by the low strain integrity tests and concrete coring methods. High pressure grouting was used to seal off these defects. The construction techniques of minimizing the horizontal cracks in the manually dug caissons are also proposed.

Key words: Manually Dug Caissons, Horizontal Cracks, Low Strain Integrity Testing Methods, High Pressure Grouting