Dust control method for blasting demolition of building

Abstract

The invention discloses a dust control method for blasting demolition of a building, which includes the steps: covering blast holes with water bags, setting a range for the water bags covering the blast holes to be larger than 30cm in radius, building a water tank 13cm high along the wall with each floor as a bottom, and filling the water tank with water 10cm in depth; drilling the floors, and drilling holes on each floor at intervals of 4-5m<2>, wherein the depth of each drilled hole is three quarters of the thickness of each floor slab; allowing the drilled holes to be communicated with cavities in the floor slabs, and injecting water into the drilled holes to fully wet the floor slabs; reserving a skylight on each floor; using water to fully wet an expected blast dreg collapse area and an expected blast wave impact range with water; suspending plastic water containers 5kg in weight at intervals of 4-5m<2> on each floor, and filling the plastic water containers with explosive. By the dust control method, blast dust can be reduced effectively, the building can be broken thoroughly, construction period is quickened, and cost is saved.

Description

technical field [0001] The invention relates to a dust-proof method for demolishing buildings by blasting. Background technique [0002] With the development of urban construction, many original infrastructures and construction layouts are increasingly unable to meet the needs of social and economic development, and even become a bottleneck restricting urban development. In order to promote social and economic development and improve urban functions, a large number of buildings within the planning scope have been demolished. Now the demolition of buildings mainly adopts controlled blasting technology. It was developed and widely used in transformation and large-scale factory relocation or technical transformation projects. Its scientific, efficient, safe and civilized construction methods have shown strong vitality; with the wide application of engineering blasting, the control of blasting Negative effects are also gradually increasing. Today, with increasing awareness of e...

AI Technical Summary

Problems solved by technology

[0002] With the development of urban construction, many original infrastructures and construction layouts are increasingly unable to meet the needs of social and economic development, and even become a bottleneck restricting urban development.

In order to promote social and economic development and improve urban functions, a large number of buildings within the planning scope have been demolished. Now the demolition of buildings mainly adopts controlled blasting technology. It was developed and widely used in transformation and large-scale factory relocation or technical transformation projects. Its scientific, efficient, safe and civilized construction methods have shown strong vitality; with the wide application of engineering blasting, the control of blasting Negative effects are also gradually increasing. Today, with increasing awareness of environmental protection, people have higher and higher requirements for blasting technology. Effective control of the dust generated by blasting, and the demolition of buildings by controlled blasting has the advantages of short construction period, but a large amount of dust is generated during the blasting process, which has a serious impact on the surrounding environment, especially in prosperous areas and residential areas. more serious

At present, the method of reducing dust generated by blasting is to install high-pressure pipe network spraying water outside the building. This method has a large workload and is difficult to implement. It cannot meet the needs of current urban development, and the dust prevention effect is not ideal.

[0003] As can be seen from the above, the above-mentioned existing dust-proof method for blasting and demolition of buildings obviously has defects in practical application and needs to be improved.

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