土工基础

›› 2014, Vol. 28 ›› Issue (4): 117-119.

• 工程实录 • 上一篇    下一篇

双护盾TBM施工隧洞围岩分类方法及应用

袭著晖1，鲁成勃1，王彦峡2，章跃林2   

  1. （1.新疆伊犁河流域开发建设管理局，新疆伊犁 835000；2.中水北方勘测设计研究有限责任公司,天津 300222）
  • 收稿日期:2014-02-25 出版日期:2014-06-20 发布日期:2014-08-20
  • 作者简介:袭著晖（1970-），男，工程师，研究方向为国内大型水利水电及调水工程的工程地质、水文地质勘察工作和研究。

Application of Rock Mass Classification in Double Shield TBM Construction

XI Zhuhui1, LU Chengbo1, WANG Yanxia2, ZHANG Yuelin2   

  1. （1. Yili River Basin Development and Construction Management Bureau, Yili Xinjiang 835000 ；
    2. Investigation, Design and Research Institute Co., Ltd., China Water Resources North, Tianjin 300222）
  • Received:2014-02-25 Online:2014-06-20 Published:2014-08-20

摘要： 针对引水隧洞围岩，在现有规范关于隧洞围岩分类基础上，提出了围岩分类新方法，综合考虑TBM掘进机掘进参数变化、围岩与护盾(管片)之间的间隙、出渣量、弃渣的块径、渣块形状、百分量、渣中刀具破岩新鲜面与围岩中结构面的比例、渣中软硬岩比例等因素，应用于达坂引水隧洞的围岩分类，所提出的方法具有重要的工程应用价值。

关键词: 双护盾掘进机, 引水隧洞, 围岩分类

Abstract: Based on the current code defined rock mass classification, a new classification method for a water tunnel excavation by using double shield TBM method is proposed in this paper. The new classification method considers the variation of the excavation parameters in the TBM; gap between the surrounding rock mass and the lining; quantity, shape and size of the excavated materials; [JP2]percentage of the of the structural plane to the machine broke rock fragments; ratio of the soft to hard rock fragments in the excavated materials. This new classification method was used in the Daban Water Diversion Tunnel excavation project.

Key words: Double Shield TBM, Water Diversion Tunnel, Rock Mass Classification