Development and application of high polymer grouting lifting material for ballastless track of high speed railway in operation

doi:10.19936/j.cnki.2096-8000.20250328.018

Abstract

Abstract: After the operation of the high speed railway, due to the long-term dynamic load of train and the harsh service environment, some sections have experienced varying degrees of uneven settlement, which seriously affects the smoothness of the line and the safe operation of train. In view of the characteristics of “uninterrupted operating” and “skylight point” short-term operation in the high speed railway projects, the performance indexes of “millimeter level” high-precision grouting lifting repair material for ballastless track was proposed, and appropriate synthetic raw materials of grouting lifting material were selected. By studying the effects of polyether polyols, isocyanates, foaming agents, catalysts, foam stabilizers, and slurry temperature on material properties, the polyurethane high polymer grouting lifting material and its proportion suitable for the grouting repair of high speed railway ballastless track have been developed. The applicability of grouting lifting material was verified by pilot test and simulated test, and it has been successfully applied to the renovation project of an intercity railway ballastless track. The results show that the ratio of H3006, ZS3035, deionized water, A33, DBTDL, AK-8805 is 30∶70∶0.6∶1.2∶1.6∶3.0 is the optimum ratio of A component slurry, and the B component slurry is equal quality PAPI. The performance indexes of grouting lifting material detected in the pilot test all reached the target value, and the grouting lifting control accuracy of the simulation test is within 1 mm, which met the grouting lifting construction requirements of ballastless track. After grouting repair, the alignment of the line is smooth, and restoring normal speed has been running normally for many years, the practice has proved that the high polymer grouting lifting material developed can be used for the grouting repair of uneven settlement of high speed railway ballastless track.

Key words: operating high speed railway, uneven settlement, composite polyether polyol, isocyanate, high polymer grouting lifting material, engineering application

CLC Number:

TB332

NI Guozhang. Development and application of high polymer grouting lifting material for ballastless track of high speed railway in operation[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(3): 139-146.

References

[1] 陶伟明, 卢春房, 叶长文, 等. 聚氨酯复合注浆材料浆液扩散特性及应用研究[J]. 铁道学报, 2023, 45(7): 1-9.
[2] 李超. 高聚物注浆材料断裂性能试验与数值模拟分析[D]. 郑州: 郑州大学, 2022.
[3] 陈张兰. 非水反应类聚氨酯注浆材料的介电特性和介电模型研究[D]. 郑州: 华北水利水电大学, 2023.
[4] 张超, 潘旺, 方宏远, 等. 高聚物注浆材料压缩疲劳损伤演化与寿命预测[J]. 中国公路学报, 2023, 36(10): 64-74.
[5] 石明生. 高聚物注浆材料特性与堤坝定向劈裂注浆机理研究[D]. 大连: 大连理工大学, 2011.
[6] 王复明, 范永丰, 郭成超. 非水反应类高聚物注浆渗漏水处置工程实践[J]. 水利发电学报, 2018, 37(10): 1-11.
[7] 张凤琳. 新旧路面纵缝高聚物注浆修复材料扩散机理研究[D]. 郑州: 郑州大学, 2022.
[8] 赵宏昊, 刘宪明, 李鹏, 等. 考虑道路层间脱空病害的地聚合物注浆材料性能研究[J]. 硅酸盐通报, 2023, 42(12): 4559-4571.
[9] 王复明, 李文辉, 郭成超, 等. 基于高聚物渗透注浆的半刚性基层路面承载性能恢复研究[J]. 北京交通大学学报, 2019, 43(3): 1-7.
[10] 方学东, 魏江, 冯自立, 等. 注浆材料在机场场道工程中的应用进展[J]. 硅酸盐通报, 2023, 42(8): 3017-3032.
[11] 曹卓颖, 侯勇, 杜鹏, 等. 隧道衬砌背后空洞用聚氨酯注浆材料探究[J/OL]. 建筑材料学报: 1-11 [2024-01-15]. http://kns.cnki.net/kcms/detail/31.1764.TU.20231219.1134.004.html.
[12] 潘艳辉, 王复明, 臧全胜, 等. 非水反应类高聚物注浆治理板桥水库廊道渗漏分析[J]. 人民黄河, 2023, 45(42): 130-134.
[13] TANI M E. Grouting rock fractures with cement grout[J]. Rock Mechanics and Rock Engineering, 2012, 45(4): 547-561.
[14] 李晓龙, 陈灿, 王贻森, 等. 自膨胀高聚物浆液劈裂注浆仿真方法研究[J]. 土木工程学报, 2023, 56(12): 156-165.
[15] 方宏远, 刘康, 杜雪明, 等. 渗透型高聚物在富水砂层中堵水规律试验与数值模拟研究[J]. 中国科学: 技术科学, 2023, 53(3): 457-472.
[16] 张超, 潘旺, 方宏远, 等. 聚氨酯泡沫注浆修复材料泡孔结构特征及抗压性能研究进展[J]. 材料导报, 2024, 38(3): 229-242.
[17] 郑前坤. 单轴压缩作用下高聚物注浆材料力学特性及其破坏机理研究[D]. 郑州: 郑州大学, 2022.
[18] 秦修云. 聚氨酯高聚物注浆材料的制备及性能研究[J]. 功能材料, 2023, 54(11): 1134-1138.
[19] 郑新国, 刘竞, 李书明, 等. 高速铁路沉降无砟轨道结构注浆整体抬升修复关键技术[J]. 铁道建筑, 2015(1): 93-97.
[20] 周新星. 涌水隧道高聚物帷幕注浆技术研究[J]. 公路, 2022(4): 372-377.
[21] 边学成, 程翀, 王复明, 等. 高速铁路路基沉降高聚物注浆修复后动力性能及长期耐久性的试验研究[J]. 岩土工程学报, 2014, 36(3): 562-568.