复杂铁路工程物资储备体系与库存策略研究

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Abstract Research purposes: Railway construction projects in complex and difficult areas are characterized by a lackof resources, long transport distances for materials, fragile logistics channels and limited reserve,facilities,etc.It isimportant to meet the dynamic supply needs of super-large linear engineering materials in complex and difficult areas ina long cycle and enhance the level of guarantee for the supply of railway engineering materials. In this paper, the centralized reserve system of railway engineering materials is constructed, the inventory strategy of central warehouse within the bid section is proposed, and the optimal ordering point and quantity of engineering materials are obtained to minimize the long-term average inventory cost.
Research conclusions: (1)The three-level reserve system of railway engineering materials is constructed, and thematerial reserve base is established to ensure the timely supply of materials by the construction unit when the risk ofmaterial supply interruption occurs.(2)Considering the random lead time, random demand,price fluctuation ofengineering materials and other factors, the inventory strategy (R,Q) is adopted to optimize the central warehouse inventory of bid section.(3)Combined with numerical examples, the optimal order point and order quantity of central warehouse are considered under the condition of allowable and non-allowable stock shortage.(4)The research results can provide theoretical reference for further research of centralized reserve management.

Key words： engineering materials centralized reserve system inventory strategy randomness

Received: 15 February 2023

PACS:

F532

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	SU Xiaokun

Cite this article:

SU Xiaokun. Research on Reserve System and Inventory Strategy of Railway Engineering Materials in Complex Areas[J]. Journal of Railway Engineering Society, 2023, 40(11): 112-118.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2023/V40/I11/112

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