摘要
研究目的:在海底隧道建设过程中,注浆能否达到加固围岩、防渗止漏的目的,浆液的配方至关重要。注浆材料的强度和耐久性是海底隧道长期正常工作的重要保障。海水环境引起的化学侵蚀、物理侵蚀以及自身因素的影响是注浆材料侵蚀破坏的主要因素。本文针对普通水泥、矿渣硅酸盐水泥和水玻璃组成的注浆材料开展正交试验,通过试验分析了普通硅酸盐水泥-水玻璃和矿渣硅酸盐水泥-水玻璃浆液的基本性能;利用正交试验设计方法,以抗压强度为主要指标,对浆液的配比进行了优化设计。研究结论:通过对两种浆液材料同龄期试块抗压强度的对比发现,矿渣硅酸盐水泥的抗海水腐蚀性能明显好于普通硅酸盐水泥。将优化配比后的浆液用于青岛胶州湾服务隧道地表注浆加固,收到了良好的效果。
Research purposes： In constuction of submarine tunnel,the grouting formula is important for reinforcement of the surrounding rock and water-proof.The strength and durability of the grouting materials are the key elements for ensuring the long-term normal service of the submarine tunnel.The chemical and physical corrosions caused by the environment change of sea water and its own effect of the grouting materials are the main reasons for the corrosions to the grouting materials.The orthogonal experiments were conducted to the grouting materials comprised of portland cement,slag-portland cement and water glass to analyze the basic performance of the slurry comprised of Portland cement,slag-portland cement and water glass.With the orthogonal experiment method,the matching ratio of slurry was optimized by taking the compress-resistant capacity as the major factor.Research conclusions：From the comparison between the compress-resistant capacities of two specimens at the same age of two kinds of different grouting materials it was found out the corrosion-resistant capacity of the slag-Portland cement was much better than the Portland cement.The optimized grouting slurry was used to reinforce the ground of the service tunnel of Jiaozhou Bay in Qingdao,obtaining a good reinforcement result.
出处
《铁道工程学报》
EI
北大核心
2010年第9期51-54,73,共5页
Journal of Railway Engineering Society
基金
国家高技术研究发展计划(863)项目(2007AA11Z134)
关键词
海底隧道
注浆
正交试验
水泥
水玻璃
submarine tunnel
grouting
orthogonal experiment
cement
water glass
