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Published on 09 November 2018

RESEARCH ON THE EFFECTS OF THE BLASTING PRESSURE VALUES ON THE STABILITY OF CONCRETE LINING IN THE EXISTING TUNNEL DURING EXPANSION AUXILIARY TUNNEL IN HAI VAN PASS PROJECT OF VIET NAM

Tran Tuan Minh, Bui Xuan Nam, Tran Quang Hieu, Nguyen Quang Huy

Nowadays, transported tunnels are widely developed and built in Viet Nam. Transported tunnels are usually designed with twin tunnels (two parallel tunnels) and they are driven at the moment curing excavation to increasing the speed of excavation. However, in the fact because of technical - economic conditions one tunnel is excavated and following the future we are going to expand tunnels or build new tunnels near the old tunnels. Today, drilling and blasting method is used for many cases during excavation tunnels. Vibration is released in the processing of blasting that has influence on the old tunnels. This paper introduces assessment the values of vibration of blasting pressure on the stability of tunnels during expansion excavation new tunnels near the existing tunnels.

CityHanoi
CountryVietnam
UDC330
Issue2018, № 3 (Т. 10)
Key wordsBlasting vibration, tunnels, drilling and blasting method, existing tunnels
Number of views (558)

Categories: Articles

Tags: взрывная вибрация, тоннели, буровзрывной метод, существующие тоннели.

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ISSN 1998-4502 (Print)                                                            ISSN 2499-975Х (Online)