A circular working well with a preset pipe jacking doorway in a water-rich stratum and its construction method

A technology for circular work and water-rich strata, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of pipe flowing sand and surrounding collapse, difficult operation, and long time, so as to overcome construction difficulties and safety. The effect of risk, shortening construction period and advanced technical concept

Active Publication Date: 2021-03-30
南方工程检测修复技术研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the most critical link is before the construction of pipe jacking in water-rich strata. Opening the door opening is a very dangerous process.

Method used

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  • A circular working well with a preset pipe jacking doorway in a water-rich stratum and its construction method
  • A circular working well with a preset pipe jacking doorway in a water-rich stratum and its construction method
  • A circular working well with a preset pipe jacking doorway in a water-rich stratum and its construction method

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Embodiment Construction

[0041] A construction method for a circular working well with preset pipe jacking portals in water-rich formations. First, the functional requirements design of the circular pipe jacking working well is completed, and then the maintenance structure and edge protection construction are carried out in sequence, followed by the circular pipe jacking work Earthwork excavation in the well, bottom sealing of the circular pipe jacking well, installation of ladders entering the circular pipe jacking well, joint leakage control and hole water stop pressure plate, and then the hydraulic jacking force of the pipe jacking equipment penetrates the lifting sandwich The thin-walled plain concrete cavity formed behind the concrete slab wall can safely carry out the pipe jacking construction operation by opening the door opening, and can complete the construction of the circular pipe jacking working well with the preset pipe jacking door opening in the water-rich stratum, which specifically incl...

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Abstract

The invention relates to a circular jacking pipe work well of a preset jacking pipe doorway in the water-rich stratum and construction method thereof. The construction method specifically comprises the following steps of (1) functional requirements design of a circular jacking pipe work well, (2) open caisson construction of a maintenance structure of the circular jacking pipe work well, (3) temporary edge protection construction; (4) earth excavation in the well, (5) sealing of the bottom of the circular jacking pipe work well, (6) installation of a ladder stand entering the circular jackingpipe work well, (7) joint leakage treatment, (8) installation of a water-stop pressing plate at an opening, (9) lifting of a sandwich concrete slab wall at the top of a preset doorway and (10) construction of jacking of a jacking pipe, and the design and construction of the circular jacking pipe work well of the preset jacking pipe doorway in the water-rich stratum is completed. The circular jacking pipe work well structural system of the preset jacking pipe doorway in the water-rich stratum has the advantages of clear function, safety, quickness, and smart design, especially overcomes the potential safety hazard of sudden water gushing and sand gushing in the process of the jacking pipe in the water-rich stratum penetrating the well wall, and provides a novel method for the non-excavationconstruction of underground pipes of water conservancy, municipal, thermal force, communication and the like.

Description

technical field [0001] The invention belongs to the field of non-excavation construction and restoration of infrastructure facilities such as water conservancy, municipal administration, heat power, and communication, and specifically relates to providing a water-rich stratum pre-fabrication method for the non-excavation construction and restoration of underground pipelines such as water conservancy, municipal administration, heat power, and communication. A circular working well with a pipe jacking opening and its construction method. Background technique [0002] The process of urbanization is accelerating, not only to build a large number of underground infrastructure facilities, but also to face the problem of rectification and upgrading of a large number of old underground pipelines, which makes the underground pipeline network of many urban roads very complicated, and road surface collapse and safety accidents caused by damage to underground pipelines are frequent. Wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/12E02D23/00E02D23/08E02D23/16E02D29/16E02D31/02
CPCE02D23/00E02D23/08E02D23/16E02D29/12E02D29/125E02D29/16E02D31/025
Inventor 王复明潘艳辉方宏远赵鹏郭成超
Owner 南方工程检测修复技术研究院
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