Muddy water balance push bench

Abstract

The invention relates to a muddy water balance push bench. The muddy water balance push bench comprises a steel cylindrical housing, a cutting blade disc arranged at the front end of the steel cylindrical housing as well as a cutting disc driving unit, a hinged unit, an electrical instrument control unit and a mud conveying and circulating unit which are accommodated and supported in the steel cylindrical housing, wherein the cutting blade disc is used for cutting a soil body during excavation; the cutting disc driving unit is used for driving forward and reverse rotation of the cutting blade disc; the hinged unit is used for fitting an excavation curve, and especially suitable for the advance of a curve with the small radius; the electrical instrument control unit is used for controlling corresponding actions of all parts; the mud conveying and circulating unit is used for conveying mud and establishing balance of an excavation plane. The push bench provided by the invention adopts a muddy water balanced type, when the excavation plane in an unstable stratum is blocked, the muddy water can be used for pressurizing so as to enable the excavation plane to keep stable, and disturbance on the soil body around a jacked pipe is smaller, so that the land subsidence is smaller. The push bench can pass through transmission pipeline projects of roads, rivers, buildings and the like, and is simple to operate, high in speed and low in cost.

Description

technical field [0001] The invention relates to a kind of excavation equipment, in particular to a mud-water balance pipe jacking machine used for the construction of trenchless engineering of pipelines. Background technique [0002] With the development of society and economy, the improvement of infrastructure, especially the acceleration of urbanization, the transmission pipeline projects of liquid and gaseous media passing through roads, rivers and buildings inside and outside the city are increasing day by day, and trenchless technology has been widely used. As a kind of trenchless technology, the mud-water balance pipe jacking technology has the advantages of adapting to a wide soil layer, stable driving surface and small land subsidence. It has strong adaptability in projects such as integrated pipelines, etc., so it has been widely used. [0003] Most of the existing pipe jacking machines are of the earth pressure balance type and the mud water balance type. In the c...

AI Technical Summary

Problems solved by technology

However, the existing large-scale pipe jacking machines are often of earth pressure balance type, the structure design is relatively complicated, the efficiency of slag discharge is low, and the ground subsidence cannot be well controlled when excavating in pure sand formation

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