土工基础

›› 2018, Vol. 32 ›› Issue (3): 239-242.

• 工程实录 •    下一篇

TRD工法在城市轨道交通的应用研究与分析

蒋颖1，何振华1，刘华1，黄伟2   

  1. (1.中国市政工程中南设计研究总院有限公司，武汉 430010；2.中铁第四勘察设计院集团有限公司，武汉 430023)
  • 收稿日期:2017-12-22 修回日期:2018-01-02 出版日期:2018-06-22 发布日期:2018-06-26
  • 作者简介:蒋颖(1981-)，男，高级工程师，研究方向为城市轨道交通结构设计。

Application of Trench Cutting and Re-Mixing Method in Urban Transit Projects

JIANG Ying1, HE Zhenhua1, LIU Hua1， HUANG Wei2   

  1. (1.Central and Southern China Municipal Design & Research Institute Co., Ltd., Wuhan 430010；
    2.China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430023)
  • Received:2017-12-22 Revised:2018-01-02 Online:2018-06-22 Published:2018-06-26

摘要： 作为轨道交通中一种常见的施工方法，明挖法具有速度快、适用地层广等特点。TRD作为明挖围护结构工法，相对于传统的地连墙、SMW工法桩、钻孔灌注桩等具有独特的优势，其止水效果好，无接缝、无缺陷，相对于地连墙和灌注桩，其泥浆排放少、施工速度快、节约成本、安全，在轨道交通具有很强的适用性。通过温州市域铁路S1号线的工程实例应用，对此四种围护形式进行比选分析，论证了深厚软土地层中TRD工法的可行性及其安全可靠、施工速度快且性价比高等优点。

关键词: TRD工法桩, 型钢水泥土搅拌墙, 轨道交通, SMW工法桩, 地下连续墙

Abstract: The open cut excavation has been frequently used in the rail transit projects as a commonly applied construction method due to it fast construction and applicability to a wide variety of geological conditions. As a supporting structure for the open cut excavation, the TrenchCutting& Remixing Deep (TRD) Wall Method has the advantages over other conventional excavation supporting methods, such as, slurry wall, SoilCement Mixing Wall (SMW), and tangent pile castinplace concrete pile wall. This paper presents a case history of the transit excavation project in the regional light rail S1 Line in Wenzhou. All four excavation supporting construction methods were compared. It was concluded that the TRD method is applicable to the thick soft soil strata and this method has the advantage of reliable, cost effective and fast construction.

Key words: Pile Formed by TRD Method, Soil-Cement Mixing Column with Hot-Rolled Steel Inclusion Wall, Rail Transit, SMW Columns, Slurry Wall