土工基础

›› 2018, Vol. 32 ›› Issue (2): 111-115.

• 工程实录 •    下一篇

SMW工法在软土基坑工程中的应用

吴发根1 ，黄罗华2，熊海明1   

  1. （1.深圳市勘察测绘院有限公司，广东深圳 518027;2.广东科艺新泰建筑科技开发有限公司，广东东莞 523112）
  • 收稿日期:2017-05-14 修回日期:2017-06-06 出版日期:2018-04-30 发布日期:2018-05-09
  • 作者简介:吴发根(1987-)，男，硕士，工程师，研究方向为岩土工程研究与实践。

Application of SMW Method in Deep Excavation Supporting in Soft Soils

WU Fagen1, HUANG Luohua2， XIONG Haiming1   

  1. （1.Shenzhen Geotechnical Investigation & Surveying Institute Co., Ltd., Shenzhen 518027；
    2.Guangdong KeyiXintai Building Science & Technology Development Co., Ltd., Dongguan 523112）
  • Received:2017-05-14 Revised:2017-06-06 Online:2018-04-30 Published:2018-05-09

摘要： 通过对SMW工法的介绍，结合工程实例实践，分析了SMW工法在软土施工过程中常见的问题及所采用的解决方法。基坑施工完成型钢回收后对SMW工法和传统排桩支护在施工经济、施工工期和施工文明三个方面进行了对比分析：后期型钢回收利用可节约施工成本约40%左右；SMW工法由于型钢施工工序较灌注桩施工工序简单，节约施工工期约一半左右；同时对周边的环境影响更小、施工环境更文明。综合分析，软土基坑工程中，在保证基坑安全稳定的同时，SMW工法支护无疑比其他支护型式具有更为广泛的优势，比传统排桩或其他支护型式更适合于软土基坑。

关键词: SMW工法, 软土基坑, 对比, 排桩

Abstract: This paper presents a case history of applying the soil mixing wall (SMW) method in the deep excavation supporting in the soil soils. The frequently countered problem and solutions in the excavation supported are discussed. One of the advantage of the SMW method over the other supporting methods is that the hot rolled steel beams can be reused after the supporting completion and the costing saving could be as much as 40%. Compared with the castinplace concrete soldier pile method, the SMW method has the advantage of simpler construction procedure, faster construction schedule and less disturbance to the adjacent environment.It is concluded that the SMW method has the advantage over other conventional supporting methods in the deep excavation supporting in soft soils.

Key words: Soil Mixing Wall (SMW) Method, Deep Excavation in Soft Soils, Comparative Analysis, Soldier Pile Wall