Tunnel crown deformation generated by pipe jacking technology in a weak rock underground coal mine

Hideki Shimada, Sugeng Wahyudi, Takashi Sasaoka, Naung Naung, Phanthoudeth Pongpanya

Research output: Contribution to conferencePaper

Abstract

An adit is one of the important parts of roadway access for underground mine construction. It is a horizontal or nearly horizontal access for mine working. This access is also usually used for draining of water, transportation of ore and waste, and ventilation. Conventional drill-blast methods as well as traditional road header operations are common methods for adit construction. However, those methods face some problems pertaining to environmental, safety issues and tunnel heading advance rate. The drill-blast method in shallow strata may generate ground vibration problems. Moreover, drill-blast in soft ground relies on the fact that the excavated ground stands up with no support for a period of time, and this situation may generate surface subsidence. On the other hand, using the traditional road header method takes a longer time for tunnel advance. Nowadays, considering higher safety due to less vibration, remaining strength of surrounding rock condition due to drilling and blasting, faster tunnel advance rate and working environment is better for laborers compared to drill and blast, mine contractors are looking to change traditional mining industry and tunnel lining methodologies by using trenchless technology for a mine access. This paper presents the use of pipe jacking technology for construction of a sloped main roadway in a weak rock underground coal mine. The study was conducted by means of numerical simulation based on real field data. This simulation is useful for predicting the behavior of the tunnel crown deformation.

Original languageEnglish
Publication statusPublished - Jan 1 2016
Event34th International No-Dig Conference and Exhibition - Beijing, China
Duration: Oct 10 2016Oct 12 2016

Other

Other34th International No-Dig Conference and Exhibition
CountryChina
CityBeijing
Period10/10/1610/12/16

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Building and Construction
  • Mechanical Engineering
  • Geology

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  • Cite this

    Shimada, H., Wahyudi, S., Sasaoka, T., Naung, N., & Pongpanya, P. (2016). Tunnel crown deformation generated by pipe jacking technology in a weak rock underground coal mine. Paper presented at 34th International No-Dig Conference and Exhibition, Beijing, China.