ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2008, Vol. 28 ›› Issue (1): 11-14.DOI: A
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ZHU Hanhua1,YANG Jianhui2,SHANG Yuequan2
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Abstract:
The mechanisms for the selfsupport ability of the surrounding rock mass are discussed. Conclusion is drawn that the selfsupport ability of the surrounding rock mass originates from the strength of the surrounding rock mass and that the plasticallystrengthened zones and the elastic zones of the surrounding rock mass are the major loadbearing structures. NATM’s viewpoint that the selfsupport ability of the surrounding rock mass should be fully exerted can be further described as that the initial state of the surrounding rock mass should be basically maintained, which is an explicit expresstion. This conclusion provides a technological direction and has certain operationability. The minimumenergy principle is applied in rock tunnels, soil tunnels and tunnels located in fractured ground respectively. The meaning of the minimumenergy principle is expounded thoroughly. It is stated that the minimumenergy principle can be used as one of the criteria to determine whether each construction plan is good or not.
CLC Number:
 
U455.48
ZHU Hanhua,YANG Jianhui,SHANG Yuequan. New Austrian Tunneling Method and its Development[J]. Tunnel Construction, 2008, 28(1): 11-14.
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