土工基础

›› 2012, Vol. 26 ›› Issue (5): 78-81.

• 工程实录 • 上一篇    下一篇

豫东地区压实粉土地基岩土工程分析与评价

王文韬1，董卫钢1，杨宏丽2   

  1. (1.河南省地矿局地质十一队，河南商丘 476000；2.西安长庆科技工程有限责任公司建筑工程设计部，西安 710018)
  • 收稿日期:2012-07-05 出版日期:2012-10-20 发布日期:2012-10-27
  • 作者简介:王文韬(1982-)，男，注册岩土工程师，2005年本科毕业于华北水利水电学院岩土工程系，研究方向为岩土工程勘察、设计等。

Geotechnical Properties of Compacted Silt Soils in the Eastern Henan

WANG Wentao1，DONG Weigang1，YANG Hongli2
   

  1. (1.The eleventh geological team of Henan province bureau of geoexploration and mineral development, Shangqiu, 476000；2. Dept. of Architecture Engineering, Xi'an Changqing Technology Engineering Co., Ltd., Xian 710018, China)
  • Received:2012-07-05 Online:2012-10-20 Published:2012-10-27

摘要： 针对豫东地区在新农村建设过程中多采用压实填土作为多层民用建筑地基持力层的工程实践，通过压实粉土的室内试验和原位测试，研究了压实粉土的工程力学特性，分析了粉土作为填土填料的基本物理力学性质，对比研究了不同含水率下压实粉土与原状粉土的强度与变形性状。试验结果表明：施工质量控制好的压实粉土,在天然湿度状态下其物理力学特性较好,有着较高的强度和刚度，而不同的含水率对压实粉土的强度与变形特征较原状粉土影响大，在施工过程中应严格控制压实粉土的含水量。

关键词: 压实粉土, 强度, 含水率, 地基承载力

Abstract: The compacted silt soils are usually used as the bearing layer for the multistory residential buildings in the eastern Henan. The geotechnical properties of the compacted as well as the insitu silts are studied with both the laboratory and insitu tests. The strength and deformation characteristics of compacted silt samples under various moisture contents are also studied. The results indicate that, under a good construction quality control, the silt with natural moisture content has a satisfactory strength and stiffness. The moisture content has a significant impact on the geotechnical properties of compacted silt. Therefore, a strict construction quality control of moisture content is required for a successful compacted silt as the foundation soil.

Key words: Compacted Silt, Shear Strength, Moisture Content, Bearing Capacity