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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.19 No.6

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The review about ultra long subsea tunnel design under high water pressure

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2017, v.19 no.6, pp.829-843
https://doi.org/10.9711/KTAJ.2017.19.6.829






& (2017). The review about ultra long subsea tunnel design under high water pressure. (사)한국터널지하공간학회, 19(6), 829-843, https://doi.org/10.9711/KTAJ.2017.19.6.829

Abstract

Subsea tunnel needs to be built over 50 km long to connect between nations and continents. However there are only 19 tunnels longer than 5 km until recently. And there is no history of constructing and operating tunnel longer than 50 km. In Korea, subsea tunnels with a length of more than 50 km are being planned, such as Korea~ Japan, Korea~China, Honam~Jeju subsea tunnels. Because of the geographical conditions of Korea, most of these tunnels are inter-contry tunnels. So technology preemption for the subsea tunnel construction is getting more and more important. Most of these subsea tunnels are ultra-long tunnels under high water pressure conditions. So new technologies are required such as ventilation and disaster prevention of high-speed tunnels, securing of structural stability under high pressure conditions, and pressure reduction in high-speed conditions. These technologies are different from those of ground tunnels. Therefore, this paper describes the ultra-long subsea tunnel design under high water pressure of maximum 16 bars through the Honam (land) - Jeju (island) virtual subsea project. We proposed a reasonable solution to various problems such as securing structural stability in high pressure condition and ventilation disaster prevention system of ultra long-tunnel.

keywords
Subsea tunnel, Ultra long tunnel, High water pressure, 해저 터널, 초장대 터널, 고수압

Reference

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