铁道标准设计2018，Vol.62Issue(4)：141-145,5.DOI:10.13238/j.issn.1004-2954.201705080001
富水复合砂层大直径盾构掘进同步注浆性能配比试验研究
Experimental Study on the Optimization of Mixture Ratio of Synchronous Grouting for Large-diameter Shield Tunneling in Water-rich Sandy Ground
摘要
Abstract
According to the geological conditions of the large-diameter shield tunneling in water-rich complex strata in Guangzhou-Foshan intercity railway,uniform test is conducted to determine the physical and mechanical parameters of the single fluid grout under different mixing ratio with synchronous grouting material of rapid filling, strong water retention, non-segregation and low decantation rate. The multi objective programming method is used to analyze the results. Experimental results show that the grouting slurry with the quantity ratio of cement,fly ash,clay quicklime,sodium sulfate and the water content as 1 : 2.56 : 0.30 : 4.90 : 2.32 respectively can meet the constraints related to the fluidity of saturated water strata and the suitable setting time, low bleeding rate, high strength and high economic benefits. The test results show that the performances of the grouting slurry with the optimum mix ratio are improved remarkably.关键词
富水复合地层/盾构/均匀试验/浆液性能/多目标规划方法Key words
Water-rich complex strata/Shield/Uniform test/Grout characters/Multi objective programming method分类
交通工程引用本文复制引用
刘玮,谢佳伟,赖友君,傅金阳,阳军生..富水复合砂层大直径盾构掘进同步注浆性能配比试验研究[J].铁道标准设计,2018,62(4):141-145,5.基金项目
国家自然科学基金项目(51608539) （51608539）
国家重点研发计划课题(2016YFC0802504) （2016YFC0802504）
