长江科学院院报 ›› 2019, Vol. 36 ›› Issue (6): 133-138.DOI: 10.11988/ckyyb.20171368

• 水工结构与材料 • 上一篇    下一篇

水泥基-玻璃纤维浆液在隧道注浆堵水工程中的应用

朱庆凯1,2   

  1. 1.山东科技大学 土木工程与建筑学院,山东 青岛 266590;
    2.山东科技大学 山东省土木工程防灾减灾重点实验室,山东 青岛 266590
  • 收稿日期:2017-12-24 出版日期:2019-06-01 发布日期:2019-06-12
  • 作者简介:朱庆凯(1993-),男,山东菏泽人,硕士研究生,主要研究方向为岩土工程和隧道工程。E-mail:1637121450@qq.com

Application of Cement-based Fiber Glass Slurry in Tunnel Grouting and Water Plugging

ZHU Qing-kai1,2   

  1. 1.School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266590, China;
    2.Key Laboratory of Civil Engineering Disaster Prevention and Mitigation of Shandong Province, Shandong University of Science and Technology, Qingdao 266590, China
  • Received:2017-12-24 Online:2019-06-01 Published:2019-06-12

摘要: 针对水泥基-玻璃纤维浆液注浆堵水可行性问题,借助理论分析、数值模拟、工程试验相结合的技术手段,对水泥基-玻璃纤维浆液治理突水灾害进行了全面、深入的研究。研究水泥基-玻璃纤维浆液对调节裂隙发展的机理,以及浆液的掺入对岩体弹性模量、黏聚力和内摩擦角的影响;通过数值模拟方法,分析注浆效果,结合实际工程的涌水量监测和围岩变形监测,验证模拟的准确性。主要结论为:①玻璃纤维的存在使裂缝产生的应力发展得到减缓,并使尖端应力强度因子减弱;②对比分析隧道注浆前后的数值模拟结果,得到不同工况下围岩衬砌的竖向、水平位移值;③通过对比工程试验数据与模拟结果,证明了水泥基-玻璃纤维浆液实际应用的可行性

关键词: 隧道, 水泥基-玻璃纤维浆液, 注浆堵水, 突水灾害, 数值模拟

Abstract: The feasibility of treating water burst using cement-based fiber glass slurry is investigated via theoretical, numerical, and engineering approaches. The crack control mechanism as well as the influence of slurry on the elastic modulus, cohesion, and internal friction angle of rock are examined. Moreover, the validity of the numerical simulation is obtained according to monitoring results of water burst and surrounding rock deformation. Results evince that fiber glass attenuates the stress development of cracks and reduces the stress intensity factor at the tip of crack. In addition, the vertical and horizontal displacements of surrounding rock in different working conditions are acquired according to comparative analysis before and after grouting. Cement-based glass fiber slurry is manifested to be feasible through engineering test and data analysis of the simulation results.

Key words: tunnel, cement-based fiber glass slurry, grouting and water plugging, water burst, numerical simulation

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