土工基础

土工基础 ›› 2020, Vol. 34 ›› Issue (6): 702-705.

• 专题论述 • 上一篇    下一篇

豫东浅层粉土工程地质分区及地基承载力的确定

王文韬   

  1. （河南省地矿局第四地质矿产调查院，郑州 450018）
  • 收稿日期:2020-08-04 修回日期:2020-09-18 出版日期:2020-12-30 发布日期:2020-12-25
  • 作者简介:王文韬（1982-），男，高级工程师，注册岩土工程师，研究方向为岩土设计、勘察。

Study on Engineering Geological Zoningand Bearing Capacity of Shallow Silt Soil in east of Henan Region

WANG Wentao   

  1. (No.4 Institute of Geological&Mineral Resources Survey of Henan, Zhengzhou 450018)
  • Received:2020-08-04 Revised:2020-09-18 Online:2020-12-30 Published:2020-12-25

摘要： 通过分析商丘市区大量的工程勘察资料，结合区域地质资料，从地貌特征入手。具体分析浅层粉土了成原因、分布规律、工程地质特征。以地貌分区为依据，将研究区分为三个工程地质分区。通过分析对比各区土工试验成果的统计结果，分别研究了各地质分区的浅层粉土的物理和力学特性,并通过平板载荷试验和现场原位测试综合比较，确定了获得浅层粉土承载力特征值的方法，为类似地区建设项目的勘察设计、施工提供了参考和依据。

关键词: 粉土, 工程地质特征, 沉积特征, 分布规律, 地基承载力

Abstract: This paper summarizes the geotechnical exploration results in urban Shangqiu area over the years. Combined with regional geological conditions and topographical information, the widely covered silty soil in shallow depth was analyzed from its deposition mechanism, distribution and engineering properties. Three zones were classified based on the topographical characteristics. The laboratory test results of physical indices and mechanically properties of silty soil samples from each zone were statistically evaluated and compared with the in-situ plate load tests and other insitu test results. The bearing capacity properties of the shallow buried silty soils were established. 


Key words: Silty Soils, Engineering Geological Properties, Sedimentary Environment, Bear Capacity of Foundation Soils

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