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Shield tunneling machine starting extension steel ring construction method

A construction method and shield machine technology, applied in the direction of earth drilling, mining equipment, tunnels, etc., can solve the problems of water gushing, mud gushing, and ground subsidence at the tunnel gate, so as to ensure the soil, high safety, and smooth operation initial effect

Pending Publication Date: 2021-11-05
中庆建设有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a construction method for extending the steel ring at the start of the shield machine, which effectively solves technical problems such as water gushing, mud gushing, and ground subsidence at the portal when the shield machine is starting, and helps to help the shield machine start safely and smoothly

Method used

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  • Shield tunneling machine starting extension steel ring construction method

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The invention provides a construction method for extending steel rings of a shield machine, comprising the following steps:

[0022] S01. Install the door cord on the steel ring of the door;

[0023] S02. In...

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Abstract

The invention provides a shield tunneling machine starting extension steel ring construction method. The shield tunneling machine starting extension steel ring construction method comprises the following steps: tunnel portal curtain cloth is additionally installed on a tunnel portal steel ring, and an extension steel ring which has the same diameter as the tunnel portal steel ring and is provided with a plurality of reserved grouting ports in the circumferential direction is additionally installed on the tunnel portal curtain cloth; two pieces of tunnel portal curtain cloth and a folding pressing plate are installed on the extension steel ring, and the two pieces of tunnel portal curtain cloth form a sealing ring; and a sealing material is poured into a grouting opening. The construction technology is simple, operation is convenient, the technical problems of water gushing, mud gushing, ground subsidence and the like at a tunnel portal during starting of a shield tunneling machine are effectively solved, and safe and smooth starting of the shield tunneling machine is achieved.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, and more specifically, relates to a construction method for starting and extending steel rings of a shield tunneling machine. Background technique [0002] In subway shield construction, the starting of the shield machine is a relatively important link. In the construction site with complex strata, for example, the stratum in the starting section is medium-coarse sand, the water leakage of the portal is relatively large, and the gas pipeline perpendicular to the direction of excavation is arranged above the tunnel in the starting section. Cave door leaks, sand gushes, and gas pipelines leak due to excessive settlement, etc., causing major safety accidents and posing great safety hazards. Contents of the invention [0003] The invention provides a construction method for extending the steel ring at the start of the shield machine, which effectively solves technical problems such as wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14E21D9/06
CPCE21D9/14E21D9/0642E21D9/0671
Inventor 申宏瑞蔡瑞昌张洪军王玉栋董帅王文亮胡长有刘超兰富钰徐元吉李庆郭源明方长明
Owner 中庆建设有限责任公司
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