Construction equipment and method for waste silt shallow layer in-situ curing

Abstract

The invention discloses construction equipment and method for waste silt shallow layer in-situ curing. The construction equipment comprises rails arranged around a silt rectangular area, and a stirring device; the rails comprise a pair of bottom temporary light walking rails, a pair of upper temporary light walking rails and a floor stand rail; slide blocks and slide motors corresponding to the bottom temporary light walking rails are mounted at the bottom of the floor bracket rail; a pulp conveying rail and a slide device for driving the pulp conveying rail to move up and down are verticallymounted on the inner side of the floor bracket rail; the internal of the pulp conveying rail is of a hollow structure; the stirring device comprises a stirring motor and a hollow stirring rod; the stirring motor is mounted above the pulp conveying rail; and the hollow stirring rod is vertically arranged below the pulp conveying rail. The construction equipment can effectively improve the construction efficiency, reduce the silt water content and improve the soil strength, and can achieve the purpose of foundation pretreatment or resourceful utilization.

Description

technical field [0001] The invention belongs to the field of environmental protection foundation treatment, and in particular relates to construction equipment and a method for in-situ solidification of waste silt shallow layer. Background technique [0002] The waste sludge from river and lake dredging has the characteristics of fine particles and a moisture content greater than 80%. Due to lax supervision, there is a phenomenon of illegal dumping to the suburbs of the city. The thickness is generally 1.5~3m, causing serious secondary pollution to the environment. With the acceleration of the urbanization process, some urban suburbs have been gradually developed, and it is necessary to build factories, houses and other buildings and structures in the areas where the silt has been dumped. It can be reduced to less than 80%, but it still faces the problem of a large amount of waste sludge that is difficult to deal with. At present, there are two commonly used treatment meth...

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Problems solved by technology

The above two methods have the following defects: the economical and reasonable treatment depth of the sludge in the first method is often less than 1m and the treatment radius of the excavator is limited, which eventually leads to poor solidification uniformity and low strength of the solidified soil. In addition, the single excavator equipment The working efficiency is low, about 180-250 cubic meters per hour; the economical and reasonable treatment depth of the second method is 5-30m, but the equipment investment is large and the mechanical utilization rate is low, so it is extremely unsuitable for sludge treatment with a depth less than 3m; The weight of the equipment used in this method is relatively large, and it is often difficult to enter the waste sludge site

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