ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2016, Vol. 36 ›› Issue (3): 326-330.DOI: 10.3973/j.issn.1672-741X.2016.03.013
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DONG Silong
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Abstract:
The tunnel boring machine(TBM) is jammed when boring in fault and fracture zones of a waterdiversion project. In order to release the TBM safely and rapidly, a series of technologies, i.e. strengthening the support of constructed sections, reinforcing the area ahead the tunneling face and the upper shield of TBM, reinforcing the surrounding rocks ahead the cutterhead by means of chemical grouting method, advance supporting and reinforcing the upper shield by means of pipe roof method and clearing the muck on the cutterhead, are adopted. Finally, the TMB is successfully released after 205 days.
Key words: waterdiversion tunnel, opentype TBM, fault and fracture zone, chemical grouting, pipe roof, mucking, jam releasing
CLC Number:
U 455
DONG Silong. Jam Releasing Technologies for Opentype TBM Bored in Fault and Fracture Zones[J]. Tunnel Construction, 2016, 36(3): 326-330.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.1672-741X.2016.03.013
http://www.suidaojs.com/EN/Y2016/V36/I3/326