土工基础

土工基础 ›› 2021, Vol. 35 ›› Issue (6): 667-669.

• 工程实录 • 上一篇    下一篇

某工程上部软弱土层、下部液化土层地基处理方法

汤 伟1，郭胜娟2，李照德1   

  1. （1.云南省设计院集团有限公司，昆明 650228；2.云南水务投资股分有限公司，昆明 650106）
  • 收稿日期:2020-09-01 修回日期:2020-09-09 出版日期:2021-12-30 发布日期:2021-12-24
  • 作者简介:汤伟（1985-），男，高级工程师，注册岩土工程师，研究方向为岩土工程。

Soil Improvement Method for Soft Soil over a Liquefiable Soil Layer

TANG Wei1， GUO Shengjuan2, LI Zhaode1   

  1. (1.Yunnan Design Institute Group Co. Ltd., Kunming 650228；
    2.Yunnan Water Engineering Investment Co. Ltd., Kunming 650106)
  • Received:2020-09-01 Revised:2020-09-09 Online:2021-12-30 Published:2021-12-24

摘要： 工程中常常遇到软弱土层和液化土层地基，但上部软弱土层、下部液化土层地基比较少见。传统单独处理软弱土层或液化土层地基的方法比较多，但能同时适用于两种土层的方法较少，通常遇到这种地基的处理方式就是采用桩基穿越处理。现结合工程实例介绍一种能处理上部软弱土层、下部液化土层地基的方法。此方法施工工艺成熟，经济造价较低，施工速度较快，值得推广。


关键词: 软弱土层, 液化土层, 地基处理, 深层搅拌桩

Abstract: The soft and liquefiable soils are soil strata that are frequently encountered in the engineering projects, however, the soft soil overlying the liquefiable soil is rarely reported. Although many conventional soil improvement methods for soft soils or liquefiable soils exist, but few methods that can improve both soils combined in one site. Deep foundations are frequently used to penetrate both soils. This paper presents a case history of soil improvement method for a weak soil layer overlying liquefiable soil layer. This method has the advantage of matured technique, cost effective and fast construction. 

Key words: soft soils, liquefiable soils, ground improvement, deep mixing columns

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