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Construction device and construction method for shield tunneling machine starting

A technology of construction equipment and shield machine, which is applied in the direction of earth drilling, mining equipment, tunnels, etc. It can solve the problems of difficulty in installation, easy deviation of the shield machine start, etc., so as to improve work efficiency and facilitate installation Effect

Active Publication Date: 2017-06-13
CHINA RAILWAY 18TH BUREAU GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, what this method adopts is a cylindrical steel sleeve, and a fixed bracket is installed at the bottom of it, which has the following problems. When the cylindrical steel sleeve is installed in the foundation pit, it is not easy to align with the center line of the tunnel, and it is difficult to ensure The error makes it easy for the shield machine to deviate when it starts; secondly, the bottom of the steel sleeve is arc-shaped, and it is difficult to install the shield machine bracket at the bottom of the steel sleeve, which affects the work efficiency of the construction personnel

Method used

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  • Construction device and construction method for shield tunneling machine starting
  • Construction device and construction method for shield tunneling machine starting
  • Construction device and construction method for shield tunneling machine starting

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Embodiment Construction

[0037] The present invention is described below in conjunction with the accompanying drawings and embodiments, and the following embodiments are explained with the best effect of the invention, but these embodiments are not limitations of the present invention.

[0038] Such as Figure 1-3 As shown, a construction device originating from a shield machine includes a door steel ring plate 1, a door sealing device, a steel sleeve 2, a shield machine 3 and a negative ring segment 4, and the door steel ring plate 1 is pre-installed. Buried on the hole door, the shield machine 3 is installed inside the steel sleeve 2; the hole door sealing device includes an extension ring 5, a first seal 6 and a second seal 7 to ensure the safety of the shield machine starting, the extension The ring 5 is fixedly connected with the steel ring plate of the door. The first seal 6 and the second seal 7 are both made of a combination of rubber cord and hinge plate. The first seal 6 is installed on the ...

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Abstract

The invention discloses a construction device and a construction method for shield tunneling machine starting. The steel sleeve of the construction device is designed to be of a U-shaped structure and is divided into multiple sections, each section is formed by splicing an upper half portion and a lower half portion, the upper half portion is two arc-shaped plates, the lower half portion is two straight plates, seal rubber pads are arranged between the upper half portion and the lower half portion and between the arc-shaped plates, and the portions are fixedly connected and the arc-shaped plates are fixedly connected through flanges. An opening door is provided with an opening door sealing device consisting of one extending ring, two pieces of rubber cord fabric, a hinged compression plate assembly and the wholly airtight steel sleeve, the problems of difficult installation and poor sealing performance of an existing steel sleeve are effectively solved, the construction efficiency can be greatly improved, and safe shield tunneling machine starting is ensured.

Description

technical field [0001] The invention belongs to the technical field of subway tunnel engineering, and in particular relates to a construction device and a construction method initiated by a shield machine. Background technique [0002] The shield method is a fully mechanized construction method in the underground excavation method. It pushes the shield machine in the ground, and supports the surrounding rock through the shield shell and segments to prevent collapse in the tunnel. It is a mechanized construction method in which the soil is excavated with a cutting device in the front, transported out of the hole by an excavation machine, pushed in by jacks at the rear, and assembled with precast concrete segments to form a tunnel structure. With the rapid development of the country's economy and the continuous acceleration of urbanization, urban rail transit has also achieved unprecedented development. Shield method construction has become the preferred construction method fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/14
CPCE21D9/0607E21D9/14
Inventor 岳长城黄欣苗建华张永强赵静波侯晗
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD
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