ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2015, Vol. 35 ›› Issue (10): 981-988.DOI: 10.3973/j.issn.1672-741X.2015.10.002
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GUAN Baoshu
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Abstract:
The author expounds the definition, engineering property, grade classification, type classification, postexcavation dynamics and assessment method of surrounding rocks; The author discusses the stability of the surrounding rock after tunnel excavation, believing that the curved tunnel face is more helpful to the stability of the tunnel face, however, so far it is difficult to form curved tunnel face by conventional machinery and equipment, and some tunnellers pay attention to the curved tunnel face and are making trials; The tunneling is developing in the trend of large crosssection excavation under the condition of actively reinforced surrounding rock; The author finally presents the classification of soft surrounding rock and special surrounding rock, to which attention should be paid during the design and construction of tunnels. The author believes that most surrounding rocks have selfsupport capability; poor surrounding rocks can be utilized in tunneling after reinforcement; the load of the surrounding rock is controllable; the dynamics of different surrounding rocks are different. In general, the tunneling technology develops based on the abovementioned purposes.
Key words: tunneling, mining method, surrounding rock, stability, dynamic classification, soft surrounding rock, special surrounding rock
CLC Number:
U 45
GUAN Baoshu. Tunneling by Mining Method: Lecture I: Surrounding Rock[J]. Tunnel Construction, 2015, 35(10): 981-988.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.1672-741X.2015.10.002
http://www.suidaojs.com/EN/Y2015/V35/I10/981