高铁路基运营期注浆线路平顺性监测技术研究

Abstract
Figure/Table
References
Related Citation (9)

Download: PDF (1085 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Research purposes:In China, the subgrade of high-speed railway is widely distributed across soft soil, and due to constructions, sealing measures, micro-geomorphologic drainage and other reasons, it is easy to cause the subgrade to soften, produce settlement diseases, and reduce the operation benefits of high-speed railway. Therefore, in the courses of grouting reinforcement and renovation of the subgrade, in order to avoid the track geometry dimension exceeding the limits, it is necessary to construct a high-precision, real-time online line smoothness monitoring technology to provide technical support for grouting reinforcement of high-speed railway subgrade under operating conditions.
Research conclusions:(1) The precision of the miniature precision prism and the Leica TS15 automatic monitoring system can meet the requirements of all-weather monitoring and can be controlled within ±0.5 mm after the parameters such as temperature, humidity and air pressure are modified. (2) Indoor wind tunnel test and field test verify the safety and applicability of the micro precision prism installed on the rail waist and the side of the rail plate, which does not affect the normal operation of the high-speed trains. (3) The energy consumption tests of the automatic monitoring system show that the combination of portable power source and Internet of Things technology can realize automatic continuous monitoring during the grouting reinforcement process of high-speed railway subgrade, and its accuracy, operability and stability can meet the requirements of operation lines. (4) This technology in this paper has reference values in other similar operating conditions of high-speed railway.

Key words： high-speed railway subgrade grouting reinforcement line smoothness automatic monitoring

Received: 13 November 2020

PACS:

U238

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YUE Zurun
	JIE Shaolong

Cite this article:

YUE Zurun,JIE Shaolong. Research on the Line Smoothness Monitoring Technology of Subgrade Grouting of High-speed Railway in Operation Period[J]. Journal of Railway Engineering Society, 2022, 39(1): 13-17.

URL:

https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2022/V39/I1/13

[1]	王翔,王波,汪正兴.高速铁路运营期基础沉降长期监测技术研究[J].铁道工程学报,2017(5):11-14.Wang Xiang, Wang Bo, Wang Zhengxing. Research on the Long-term Monitoring Technology of Subgrade Settlement for High-speed Railway in Operation Period[J]. Journal of Railway Engineering Society, 2017(5): 11-14.
[2]	楼少俊.运营高铁软基沉降加固及质量检测技术[J].铁道工程学报,2015(8):41-44.Lou Shaojun. Research on the Reinforcement and Quality Testing Complete Technology for Soft Subgrade Settlement of High-speed Railway[J]. Journal of Railway Engineering Society, 2015(8):41-44.
[3]	闫宏业.运营高速铁路路基信息化注浆加固控制技术[J].铁道建筑,2019(12):85-88.Yan Hongye. Control Technology of Informationized Grouting Reinforcement for High-speed Rrailway Subgrade[J]. Railway Engineering, 2019(12):85-88.
[4]	张成平,张顶立,骆建军,等.地铁车站下穿既有线隧道施工中的远程监测系统[J].岩土力学,2009(6):1861-1866.Zhang Chengping, Zhang Dingli, Luo Jianjun, etc. Remote Monitoring System Applied to the Construction of Metro Station Undercrossing Existing Metro Tunnel[J]. Rock and Soil Mechanics,2009(6):1861-1866.
[5]	闫鑫,闫宏业,张先军,等.运营高速铁路路基基底加固抬升一体化技术[J].铁道建筑,2019(2):5-7.Yan Xin, Yan Hongye, Zhang Xianjun, etc. Integration Technology of High-speed Railway Subgrade Reinforcement and Uplift[J]. Railway Engineering, 2019(2): 5-7.
[6]	禚一,王旭,张军.高速铁路沉降自动化监测系统SMAIS的研发及应用[J].铁道工程学报,2015(4):10-15.Zhuo Yi, Wang Xu, Zhang Jun. Development and Application of Automatic Monitoring System SMAIS for Settlement of High-speed Railway[J]. Journal of Railway Engineering Society,2015(4): 10-15.
[7]	贾宁. 高铁列车风作用下无砟轨道保温板安全性研究[D].石家庄:石家庄铁道大学,2018.Jia Ning. Security of Heat-insulating Board onUnballasted Track Under the Effect of Train-induced Air Flow in High-speed Railway[D].Shijiazhuang:Shijiazhuang Tiedao University, 2018.
[8]	尹镪,蔡成标,郭宇.高速列车引起的负风压对轨道吸声板稳定性的影响[J].铁道建筑,2017(2):109-112.Yin Qiang, Cai Chengbiao, Guo Yu. The Influence of Negative Wind Pressure Caused by High-speed Rrain on the Stability of Track Sound-absorbing Plate[J]. Railway Engineering, 2017(2): 109-112.