铁路路堑装配式绿化挡墙关键技术分析研究

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Abstract Research purposes: Based on the construction site of the prefabricated greening retaining wall for the cutting slope of Luzhou Station of the South Sichuan intercity railway, this paper analyzes and studies the stress characteristics, displacement and deformation of the retaining wall structure by simulation, so as to determine the key technical parameters that are technically reasonable and economically feasible.
Research conclusions: (1) The prefabricated greening cutting retaining wall shall be assembled and constructed close to the excavated slope, and toe slabs and tenons shall be set if necessary. (2) When the toe slab width is 1 m, the wall displacement is significantly lower than that without toe slab. It is recommended that the toe slab width be set at 1~1.5 m. (3) The setting of anchor rod will significantly improve the stress and displacement of the prefabricated retaining wall. When the retaining wall is provided with anchor rods, the spacing of anchor rods has a great impact on the deformation and stability of the prefabricated cutting retaining wall. For the cutting slope of weathered mudstone, it is recommended that the vertical spacing of anchor rods be no more than 2.1 m. (4) The main performance of the wall is that the rib column is compressed, and significant stress concentration occurs at the connection between the rib column and the foundation slab. Therefore, the structural column reinforcement should be carried out reasonably, and the reinforcement design of the rib column at the foundation slab should be strengthened. (5) The research results have guiding significance in the popularization and application of cutting retaining engineering.

Key words： cutting slope prefabricated greening retaining wall toe slab and tenon anchor stock

Received: 26 September 2022

PACS:

U213

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	Articles by authors
	SI Wenming
	ZHANG Xinsheng
	TANG Yuanli
	JIANG Chusheng
	ZHAO Xiaoyan

Cite this article:

SI Wenming,ZHANG Xinsheng,TANG Yuanli, et al. Analysis and Study of the Key Technologies of Prefabricated Greening Retaining Wall for Railway Cutting[J]. Journal of Railway Engineering Society, 2022, 39(12): 24-29.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2022/V39/I12/24

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