土工基础

›› 2019, Vol. 33 ›› Issue (4): 528-532.

• 工程实录 • 上一篇    

豫东地区素混凝土桩复合地基综合检测技术分析评价

建林青，谢 瑞，陈 竞   

  1. （河南省地质矿产勘查开发局第四地质矿产调查院，郑州 45000）
  • 收稿日期:2019-06-17 修回日期:2019-06-25 出版日期:2019-08-20 发布日期:2019-08-16
  • 作者简介:建林青（1974-），男，高级工程师，研究方向为工程检测及物探。

Evaluation and Quality Control of Plain Concrete Column Composite Foundations in Eastern Henan

JIAN Linqing, XIE Rui, CHEN Jing   

  1. (No.4 Institute of Geological & Mineral Resource Survey of Henan, Zhengzhou, 450000)
  • Received:2019-06-17 Revised:2019-06-25 Online:2019-08-20 Published:2019-08-16

摘要： 复合地基检测对于保证地基处理工程质量十分重要。传统的质量验收以复合地基承载力检测作为评判标准，进入新时代以来，随着检测科技发展，对多方法、多指标检测越来越重视。以两个素混凝土桩复合地基工程为例，介绍了以复合地基和单桩双重承载力检测、桩身强度检测、完整性检测、桩间土检测等综合手段的评判标准，以求多方位、科学检测和评判工程质量，达到用数据说话，减少人为因素。

关键词: 低应变检测, 钻芯试压, 载荷试验, 素混凝土桩, 复合地基

Abstract: Testing methods that evaluating in the composite foundations are very important to ensure the quality control in ground improvement projects. The conventional quality control measure is the evaluating of the bearing capacity of composite foundations. In recent years, more and more testing measures and more and more quality control criteria have been proposed and applied in the practical projects. This paper presents two ground improvement projects that using plain concrete columns. Different quality evaluation criteria, such as, bearing capacity of composite soil and single columns, the strength of concrete column, the integrity of plain concrete column and characterization of soil among columns, are introduced and evaluated with the objective of evaluating the performance of composite grounds using testing data.

Key words: low strain integrity tests, concrete coring test, static loading tests, plain concrete columns, composite foundations