›› 2016, Vol. 30 ›› Issue (6): 699-701.

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Impact of the Different Excavation Sequences for the Stability of Deep Excavation Adjacent to a Soil Covered Rock Slope

XIONG Yifan   

  1. (College of Civil Engineering and Architecture, East China Institute of Technology, Nanchang 330013)
  • Received:2016-09-18 Revised:2016-09-26 Online:2016-12-20 Published:2016-12-22

Abstract: The impact of different supporting systems for the deep excavation on the stability of an adjacent soil covered rock slope in Jingdezhen is presented in this paper. The stability of the slide resistant caisson with ground anchor supported deep excavation under four different excavation sequences was numerically evaluated. These four excavation sequences are: excavation at the entire site simultaneously; excavation area by area; excavation at alternate area; and excavation sequentially at alternate area. The movement at the soil covered slope were compared and it is concluded that the slide resistant caisson can effectively maintain the stability of the slope. It is also concluded that the excavation sequentially at alternate area method is more favorable to the slope stability.