Henan Zhongsui Engineering Equipment Co., Ltd.
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The City Tunnel And Metro Construction Technology
- Jun 08, 2017 -

The tunnel quality depends on the technical quality, process quality depend on excavation,preliminary bracing and waterproof and drainage, preliminary bracing and waterproof drainage quality of waterproof and drainage is better to control, so the key is the excavation quality, the excavation quality is depend on the drill blasting quality, that is to say theory did not have the back break subsequent that the quality has the guarantee, threrfore the tunnel quality depends largely on the quality of the drill blasting,first determine the scheme of the drill blasting is pre-splitting blasting or the smooth blasting, first of all, we come up from theory analysis, due to the v level of surrounding rock loose rock mass, crack is unable to use or adopt smooth blasting technique, so must be familiar with pre-splitting blasting technology and characteristics

Henan zhongsui Engineering Equipment Co., Ltd is professionally manufacture shield supporting back-up machinery, such as battery locomotive,35t battery locomotives, diesel powered locomotive, muck car, mortar vehicles, tunnel segment car, etc, tunnel construction equipments, shield tunneling machine,subway construction back up machineries.