A multi-layer structure inspection well and its manufacturing method

Abstract

The invention discloses a multilayer inspection well and a manufacturing method thereof. The inspection well comprises multiple layers of well shafts, multiple layers of well bases, and a well lid, wherein the well base in each layer comprises a cylindrical base part, well shaft connectors which extend from the upper and lower ends of the base part, and at least one transversely formed pipeline connector; at least one ends of the well shafts are in fusion welding with the well shaft connectors in a thermoplastic manner; and the upper end of the well shaft in the topmost layer is connected with the well lid. When the multilayer inspection well is utilized, pipelines which are embedded in different underground vertical positions and have various different functions can be monitored at the same time in one inspection well; the well shafts and the well bases are in sealed connection, so that the inspection well is more stable; and when the well shafts and the well bases are connected and when the ground subsides due to overload or underground tunnels subside due to various reasons, the well shafts of the inspection well can have certain elastic deformation due to the fact that the well shafts have certain elasticity, so that connection of the pipeline connectors of the inspection well and the original pipelines remains stable, sealing performance is good, and the inspection well is not liable to damage.

Description

technical field [0001] The invention relates to inspection well equipment, in particular to a multilayer structure inspection well and a manufacturing method thereof. Background technique [0002] Inspection wells are vertical shafts built at regular intervals at the location of underground pipelines. Underground pipelines such as water pipelines, industrial and mining sewage discharge pipelines, underground communication pipelines, cable placement pipelines, irrigation pipelines, etc., are laid underground and it is difficult to observe them. Therefore, it is necessary to build inspection wells connected to underground pipelines when laying various underground pipelines. Common technical measures. Inspection wells are mainly used in residential areas, public building areas, factory areas and other building areas where buried plastic pipes meet, turn, pipe diameter or slope change, etc., in order to facilitate regular inspection, cleaning and dredging or downhole operation ...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned inspection wells have the following problems: on the one hand, each inspection well can only monitor pipelines of one depth; The road surface has been crushed by heavy objects such as cars for a long time, and the vertical depth of the shaft will change over time, making the shaft easily deformed by compression and damaged. The vertical position of the pipeline does not match, so that there will be a gap at the connection between the wellbore and the well seat of the inspection well. Further, there will be a gap at the connection between the pipeline and the pipeline interface. In severe cases, it will be disconnected, causing the internal pipeline Contaminated or even damaged by the external environment

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