Anti-differential settlement inspection well device and construction method thereof

Abstract

An anti-differential settlement inspection well device comprises a well cover (1) and a well body (2), wherein a support plate (3) is arranged below the well cover (1), a well cover placing hole (31) is formed in the support plate (3), and the area of the support plate (3) opposite to a well body upper opening (21) is at least greater than that formed by the outer edge of the well body upper opening (21); the support plate (3) is located above the well body upper opening (21), and the lower surface of the support plate (3) is separated from the well body upper opening (21); cushion blocks (4) are arranged below the outer edge of the support plate (3) in a way of supporting the outer edge of the support plate (3); and the cushion blocks (4) partially extend out of the outer edge of the support plate (3). Even if under the long-term and repeated action of load of vehicles, the inspection well device can always avoid differential settlement generated between the well cover and / or the well body and circumjacent roads. In addition, the invention further provides a construction method of the anti-differential settlement inspection well device.

Description

[0001] This application is a divisional application of the Chinese invention patent application submitted on July 25, 2012, with the application number 201210260703.9, and the title of the invention is "Inspection well device and construction method for anti-differential settlement". technical field [0002] The invention relates to the technical field of urban road construction and construction, in particular to an inspection well device capable of resisting differential settlement and a construction method thereof. Background technique [0003] The construction of a large number of roads in urban construction is often accompanied by various public pipeline facilities. From the perspective of saving land resources, the planning department often arranges such pipelines, especially rainwater and sewage pipelines, within the scope of roads. For maintenance requirements, it is necessary to set up inspection wells (manholes) at certain intervals so that relevant construction pers...

AI Technical Summary

Problems solved by technology

But at the same time, due to the settlement of the road itself, this combined inspection manhole cover cannot sink synchronously when the road descends, resulting in differential settlement between the two. to crack

Secondly, for a bearing plate that is too large and has a shallow buried depth, when the vehicle wheel load acts on one side (corner) of the bearing plate, a certain amount of short-term compression deformation will occur at this position, while the corresponding side (corner) will produce Reverse deformation, under the action of repeated vehicle loads, also causes cracks along the road at the corners of the bearing plate; moreover, in order to ensure the smoothness of the road, the manhole cover seat placed on the bearing plate needs to ensure that it is consistent with the road. The road surface is on the same level, so it cannot be directly fixed with the bearing plate in advance, but can only be fixed with cement mortar seat grout after the bearing plate construction is completed

After the road was opened to traffic, it was squeezed and pushed by the vertical load and horizontal force of the vehicle. After a certain period of time, the manhole cover seat did not have enough anti-horizontal push ability due to the bonded mortar with the support plate, and appeared. Loose, which causes the horizontal displacement of the manhole cover, resulting in cracking of the road surface or inclined settlement around the manhole cover seat

[0005] In addition, another kind of anti-settling manhole cover that is currently being used in practice solves the flatness problem that the well seat (cover) is consistent with the road plane because only a widened circular (or rectangular) well seat frame is used, but it does not solve the problem of Anti-settlement problems under loads at the entire well site

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