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Sunken prefabricated inspection well and underground construction method thereof

A construction method and inspection well technology, which is applied to caissons, artificial islands, water conservancy projects, etc., to achieve the effects of saving excavation costs, simple construction, and reducing traffic impacts

Pending Publication Date: 2021-10-22
NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] After analysis, the prefabricated reinforced concrete inspection well in the above patent is quite different from the present application in terms of prefabricated structure and buried method, so it does not affect the novelty of the present application

Method used

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  • Sunken prefabricated inspection well and underground construction method thereof
  • Sunken prefabricated inspection well and underground construction method thereof
  • Sunken prefabricated inspection well and underground construction method thereof

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Embodiment Construction

[0028] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings. It should be noted that this embodiment is descriptive, not restrictive, and cannot thereby limit the protection scope of the present invention.

[0029] A sinking prefabricated inspection well, including a top plate, a bottom plate, and a valve well shaft 1, wherein the top plate and the bottom plate are respectively fixed and sealed on the end faces of the two axial openings of the valve well shaft; An annular blade foot 3 is provided, and a plurality of holes 6 are radially opened on the lower part of the valve well shaft; radially extending corbels 2 are integrally formed on the inner wall of the valve well below the holes.

[0030] Moreover, the circumferential outer wall of the valve well shaft has a stepped structure, and the diameter of the outer ...

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Abstract

The invention discloses a sunken prefabricated inspection well and a underground construction method thereof. The sunken prefabricated inspection well comprises a top plate, a bottom plate and a valve well shaft, wherein the top plate and the bottom plate are fixedly arranged and plugged on the end faces of two axial openings of the valve well shaft, an annular blade foot is integrally manufactured at an opening in the bottom of the valve well shaft, a plurality of holes are formed in the lower portion of the valve well shaft in the radial direction, and a bracket extending in the radial direction is integrally manufactured on the inner wall of the valve well below the hole. The underground construction method for the prefabricated inspection well comprises the steps that firstly, a valve well shaft is prefabricated in a factory and vertically hoisted to a preset underground position; secondly, a base plate is laid at a top opening of the valve well shaft, and pressure equipment is erected at the axis position of the top face of the base plate; thirdly, the valve well shaft is pressed to the preset buried depth, and then muck in the valve well shaft is excavated; and fourthly, a concrete bottom plate is poured, and a concrete top plate is installed. The prefabricated inspection well is convenient to use, simple to construct and small in influence on traffic and daily life of nearby buildings and human beings.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a sunken prefabricated inspection well and an underground construction method thereof. Background technique [0002] The inspection well is set up for the convenience of maintenance and installation of power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipe, street lamp line, etc. of urban underground infrastructure to facilitate regular inspection of subsidiary structures. The existing inspection well construction technology has a large amount of soil excavation, and there are problems such as great impact on adjacent structures and human traffic and daily life. [0003] Through the search of public patents, the following comparative documents were found: [0004] CN105019476A discloses a prefabricated assembled reinforced concrete inspection well, including a main pipe access section, a branch pipe access section, a height adjust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/12E02D23/08
CPCE02D29/12E02D29/125E02D23/08E02D2300/002
Inventor 万玉生李文秋徐亚男叶雅丽王晓杰姜天凌
Owner NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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