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Design of the Railbeam Lengths at the Roadbed

철도 레일빔 설계법에 대한 연구

  • Jung, Hyuksang (Department of Railroad Civil Engineering, Dongyang University)
  • Received : 2015.10.01
  • Accepted : 2015.12.15
  • Published : 2016.01.01

Abstract

This paper deals with contents on the estimation of rail beam from the geotechnical engineering aspect. Rail beam is reinforced rail installed on the inside and outside of rail to prevent differential settlement during the construction period of railroad crossing construction. Such rail beam is frequently being installed to ensure stability of existing railroad facilities because of increasing constructions of underground structures crossing railroad in recent. However, there is a difficulty in design due to lack of design standard on rail beam length. Furthermore, derailing accidents are also occurring as a result of rail beam length shortage. Accordingly, this paper presented flow chart based on the classification into soil ground and bedrock ground for the rail beam length estimation. In addition, case study was conducted on rail combination and location through which effective rail combination and location were ensured.

본 논문은 레일빔의 길이 산정에 관해서 지반공학적 측면에서 다룬 내용을 담고 있다. 레일빔은 철도횡단공사에서 가설기간 중에 부등침하 방지 목적으로 레일의 내측과 외측에 설치하는 보강레일을 말한다. 이러한 레일빔은 최근 철도를 횡단하는 지하 구조물의 시공이 증가해서 기존 철도 시설물의 안정에 대응하고자 많이 설치하고 있다. 그러나 레일빔 길이 설계에 관한 기준이 없어 설계에 어려움이 있을 뿐만 아니라 레일빔 길이 부족으로 탈선사고까지 이어지는 경우가 발생하고 있다. 따라서 본 연구에서는 레일빔 길이 산정 방식에 대하여 토사지반과 암반지반으로 분류하여 Flow chart를 제시하였으며 레일 조합 및 위치에 대한 Case study를 실시하여 효과적인 레일의 조합과 위치에 확보할 수 있었다.

Keywords

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