Reactive powder concrete material manhole cover and manufacturing method thereof

Abstract

The invention discloses a reactive powder concrete material manhole cover which comprises a manhole cover body and a manhole base. The reactive powder concrete material manhole cover is characterized in that the manhole base is composed of a first reactive powder concrete body and reinforcing steel bars arranged in the first reactive powder concrete body; the manhole cover body is composed of a second reactive powder concrete body in a shape of an inverse circular truncated cone and a reinforcing steel bar supporting body arranged in the second reactive powder concrete body; and the reinforcing steel bar supporting body is formed by a ring-shaped steel hoop, #-shaped reinforcing steel bars, inner annular reinforcing steel bars and outer annular reinforcing steel bars, wherein the two ends of the #-shaped reinforcing steel bars are fixedly connected with the ring-shaped steel hoop or connected with the ring-shaped steel hoop into a whole, the inner annular reinforcing steel bars are fixedly connected with the #-shaped reinforcing steel bars or connected with the #-shaped reinforcing steel bars into a whole, and the outer annular reinforcing steel bars are fixedly connected with the #-shaped reinforcing steel bars or connected with the #-shaped reinforcing steel bars into a whole. A manufacturing method of the manhole cover includes the steps of reinforcement cage manufacturing, reactive powder concrete mixture manufacturing, and manhole cover body and manhole base manufacturing. By means of the reactive powder concrete material manhole cover and the manufacturing method, the manhole cover is excellent in performance, durable in use and capable of being used as municipal engineering public services such as tap water, telecom, electric power, gas, heating power, fire control and environmental sanitation.

Description

technical field [0001] The invention belongs to a cover for a manhole inspection well or the like, and relates to an inspection well cover made of active powder concrete and a manufacturing method thereof. The inspection manhole cover of the present invention can be widely applied to the inspection manhole covers required by municipal engineering public facilities such as tap water, telecommunications, electric power, gas, heat, fire protection, and sanitation, and is also suitable for inspection of urban roads, highways, passageways and sites where motor vehicles drive or park well. Background technique [0002] With the rapid development of my country's road traffic, the number of modern and high-grade urban roads is increasing day by day, and the underground pipe network system of urban roads is also increasing. Water, telecommunications, electricity, gas, heating, fire protection, sanitation and other public facilities need to install manhole covers, and the market deman...

AI Technical Summary

Problems solved by technology

The inspection manhole cover of the present invention is made of reactive powder concrete (Reactive Powder Concrete, referred to as RPC) material and steel bars. The steel bar configuration of the manhole cover has been specially optimized, which can greatly increase the failure load of the manhole cover. The performance of the manhole cover can reach GB26537 " Steel fiber concrete inspection manhole cover "D400 grade requirements; the inspection manhole cover of the present invention overcomes the shortcomings of traditional steel fiber concrete manhole covers and well seats with low strength and poor impact performance, and also overcomes the shortcomings of high cost of resin and fiberglass manhole covers and well seats. The inspection manhole cover has excellent performance and is durable

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