Method for manufacturing solid block by using engineering waste, solid block, and backfilling method

Abstract

The invention discloses a method for manufacturing a solid block by using engineering waste, the solid block, and a backfilling method. The method for manufacturing the solid block comprises the steps that: an aggregate is prepared by using the engineering waste, wherein he engineering waste comprises construction waste and/or mining waste; the aggregate is mixed with additives, and the mixture is stirred by using water, such that a material is prepared; and the material is manufactured into the solid block. The backfilling method comprises the steps that: slurry is prepared; the solid blocks and the slurry are filled into a void, such that the slurry is filled into the spaces among the solid blocks and between the solid blocks and the inner surface of the void. The slurry is foamed light soil slurry or concrete slurry. With the method for manufacturing solid blocks by using engineering waste and the backfilling method with the solid blocks, engineering waste is sufficiently utilized, production efficiency is high, and backfilling is convenient. Also, problems such as atmospheric dust caused by backfilling by using sand and gravel are avoided.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a method for manufacturing a solid block from engineering waste, a solid block and a backfilling method. Background technique [0002] In the process of industrial development and national urbanization, engineering wastes inevitably exist, such as construction wastes produced by depreciation, aging or demolition of buildings, and industrial and mining wastes produced by activities such as industrial and mining production and mining, which have become difficult to deal with. If engineering waste is not treated effectively, it will cause environmental pollution and waste of resources. Existing engineering waste treatment methods include discharging engineering waste into water bodies, deep burying engineering waste, or backfilling with engineering waste, for example, using industrial and mining waste to backfill abandoned mines. However, discharging engineering w...

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Problems solved by technology

However, discharging engineering waste into water bodies or deep burying engineering waste will of course damage the environment, deeply burying engineering waste will occupy land resources, and using engineering waste to backfill may also damage soil and water quality; therefore, the existing Both methods will cause relatively large damage to the environment, and the recycling efficiency is low

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