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隧道建设(中英文) ›› 2013, Vol. 33 ›› Issue (9): 715-719.DOI: 10.3973/j.issn.1672-741X.2013.09.002

• 研究与探索 • 上一篇    下一篇

不同地层盾构泥砂对制备同步注浆材料性能影响研究

林文书1, 王红喜1, 彭碧辉1, 许可1, 王彪2, 丁庆军2   

  1. (1.武汉地铁集团有限公司, 湖北 武汉 430030; 2.武汉理工大学, 湖北 武汉 430070)
  • 收稿日期:2013-07-29 修回日期:2013-08-26 出版日期:2013-09-18 发布日期:2013-09-18
  • 作者简介:林文书(1965—),男,湖北麻城人,1987年毕业于上海铁道学院铁道工程专业,硕士,高级工程师,主要从事地铁建设管理工作。

A Study on Producing Synchronous Grouting Materials Using  Muck Collected in Shield Tunneling in Different Strata

LIN Wenshu1, WANG Hongxi1, PENG Bihui1, XU Ke1, WANG Biao2, DING Qingjun2   

  1. (1. Wuhan Metro Group Co., Ltd., Wuhan 430030, Hubei, China; 2. Wuhan University of Technology, Wuhan 430070, Hubei, China)
  • Received:2013-07-29 Revised:2013-08-26 Online:2013-09-18 Published:2013-09-18

摘要:

为找到工程废弃泥砂有效再利用的方法,通过对不同性质盾构泥砂制备同步注浆材料性能的分析,研究了不同颗粒组成、不同塑性指数的盾构泥砂对制备的同步注浆材料工作性能、力学性能及抗水分散性能的影响。结果表明: 黏粒含量为10%~30%、含砂量为40%~70%的盾构泥砂制备的同步注浆材料的流动性、稳定性、力学性能与抗水分散性能均能达到设计要求,对不处于上述范围的盾构泥砂提出了矫正方法。所制备的同步注浆材料应用于武汉地铁工程,应用结果表明: 盾构掘进轴线精度控制在5 cm以内,管片上浮和地表沉降都小于3 cm,注浆效果良好。

关键词: 盾构泥砂, 同步注浆材料, 流动性, 稳定性, 抗水分散

Abstract:

A study on producing synchronous grouting materials using mucks collected in shield tunneling in different strata is carried out, so as to find new ways for the effective recycling of mucks produced in shield tunneling. The influence of the clay content and plasticity index of the mucks on the performance, mechanical properties and water dispersion resistance of the synchronous grouting materials produced is studied. The result shows that the fluidity, stability, mechanical properties and water dispersion resistance of the synchronous grouting materials produced using mucks with 10%~30% clay content and 40%~70% sand content meet the design requirements. For mucks with their clay and sand content outside the abovementioned range, correction methods are proposed. Synchronous grouting materials produced using mucks collected in shield tunneling are trialed in the construction of Wuhan Metro and good results are achieved, with the accuracy of the axial line of shield driving controlled within 5 cm, and the uplifting of segment lining and the ground settlement being less than 3 cm.

Key words: muck produced in shield tunneling, synchronous grouting material, fluidity, stability, water dispersion resistance