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

研究成果: 会議への寄与タイプ学会誌査読

抄録

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.

本文言語英語
出版ステータス出版済み - 2016
イベント34th International No-Dig Conference and Exhibition - Beijing, 中国
継続期間: 10月 10 201610月 12 2016

その他

その他34th International No-Dig Conference and Exhibition
国/地域中国
CityBeijing
Period10/10/1610/12/16

!!!All Science Journal Classification (ASJC) codes

  • 地球物理学
  • 土木構造工学
  • 地盤工学および土木地質学
  • 建築および建設
  • 機械工学
  • 地質学

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