工字型板式抗滑结构受力与变形特性试验研究

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Abstract Research purposes: The existing anti-slide structures are still mainly rectangular and circular section anti-slide piles, but their material consumption is larger, and there is space for further optimization. Therefore, this paper proposed a new anti-slide structure of I-shaped plate, its stress and deformation characteristics, the setting and connection of web plate need to be studied through experiments, in order to provide a basis for theoretical calculation and design.
Research conclusions: (1)The deformation of the I-shaped plate anti-slide structure is related to the depth and connection of the web. The deeper the web is set, the smaller the displacement of the top of the structure and the stronger the deformation resistance. The anti deformation ability of cast-in-place rigid joint structure is stronger than that of precast assembly structure. (2) The thrust force distribution of the structure is approximately trapezium. The deeper the web is set, the lower the action point of thrust resultant force. (3) The bending moment distribution of the inner and outer plates is in reverse "S" shape, and the reverse bending point is near the sliding surface, which shows the mechanical characteristics of the flexible structure. (4) With the deepening of web setting depth, the positive and negative extreme bending moment, the maximum bending moment of the roof and the maximum stress of the web decrease, but the difference in absolute value between the positive and negative extreme bending moment of the inner and outer plates increases, and the stress of the plate is uneven. (5) The web should be set to a certain depth below the sliding surface. (6) The research results can be popularized and applied in the treatment of landslide and diseased slope.

Key words： I-shaped structure plate anti-slide structure stress characteristics deformation characteristics

Received: 23 July 2021

PACS:

U213.1+52

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	Articles by authors
	ZHENG Jing
	AN Mengkang
	LU Changming
	SU Junxia

Cite this article:

ZHENG Jing,AN Mengkang,LU Changming, et al. Experimental Research on the Mechanical and Deformation Characteristics of Anti-slide Structure with I-shaped Plate[J]. Journal of Railway Engineering Society, 2022, 39(5): 1-7.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2022/V39/I5/1

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