Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rapid controlled blasting demolition method for arch-shaped highway over-line bridge
The invention provides a rapid controlled blasting demolition method for an arch-shaped highway over-line bridge. The rapid controlled blasting demolition method comprises the following steps that a blasting construction scheme is designed; blast holes are deployed and controlled; the traffic is closed, and road surface protection is performed; blasting powder is loaded, and leads are connected; safety alerting is performed; detonation is performed; a bridge body is separated by cutting; road surface clearing is performed. The rapid controlled blasting demolition method has the advantages that most work (for instance, blast hole deploy and control) of demolition construction is performed under the condition of normal vehicle traffic, the demolition time is saved, the speed is high, and lines can keep unobstructed; as disintegration is relatively sufficient after the bridge body collapses, the demolition time is short; during blasting demolition, all components are broken and deform synchronously, and the collapse range is concentrated; long-distance detonation control is performed, so safety is good; from traffic closing to traffic restoration, it usually takes 6-8 hours, management is facilitated, blasting demolition of multiple overbridges of the whole line can be achieved at the same time, and the construction period can be effectively shortened.
Rapid controlled blasting demolition method for arch-shaped highway over-line bridge
The invention provides a rapid controlled blasting demolition method for an arch-shaped highway over-line bridge. The rapid controlled blasting demolition method comprises the following steps that a blasting construction scheme is designed; blast holes are deployed and controlled; the traffic is closed, and road surface protection is performed; blasting powder is loaded, and leads are connected; safety alerting is performed; detonation is performed; a bridge body is separated by cutting; road surface clearing is performed. The rapid controlled blasting demolition method has the advantages that most work (for instance, blast hole deploy and control) of demolition construction is performed under the condition of normal vehicle traffic, the demolition time is saved, the speed is high, and lines can keep unobstructed; as disintegration is relatively sufficient after the bridge body collapses, the demolition time is short; during blasting demolition, all components are broken and deform synchronously, and the collapse range is concentrated; long-distance detonation control is performed, so safety is good; from traffic closing to traffic restoration, it usually takes 6-8 hours, management is facilitated, blasting demolition of multiple overbridges of the whole line can be achieved at the same time, and the construction period can be effectively shortened.
Rapid controlled blasting demolition method for arch-shaped highway over-line bridge
LONG HAIJIAN (Autor:in) / MA JUN (Autor:in) / ZHAO WEI (Autor:in) / MA RUISHENG (Autor:in) / GUO KEXIN (Autor:in)
23.09.2015
Patent
Elektronische Ressource
Englisch
Numerical Simulation of Highway Double Curved Arch Bridge Structure Blasting Demolition
| British Library Conference Proceedings | 2011
Numerical Simulation of Highway Double Curved Arch Bridge Structure Blasting Demolition
| Trans Tech Publications | 2011
Segmented blasting demolition method for large bridge
| Europäisches Patentamt | 2021
Fundamentals of Highway Bridge Demolition
| ASCE | 2013