Published on 09 November 2018
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.
Tags: взрывная вибрация, тоннели, буровзрывной метод, существующие тоннели.
ISSN 1998-4502 (Print) ISSN 2499-975Х (Online)