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Tunneling construction method for shield tunneling machine

A construction method and technology of shield machine, which are applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of time-consuming and laborious construction sites, dirty and messy, etc., and achieve convenient manufacturing and transportation, high safety factor, and simple and fast construction methods. Effect

Active Publication Date: 2013-01-23
SHANGHAI URBAN CONSTRUCTION MUNICIPAL ENGINEERING (GROUP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this scheme in the specific construction are also obvious. It is a huge project to send a large amount of mud into the cavity and discharge a large amount of mud after the construction is completed. It is not only time-consuming and laborious, but also makes the construction site dirty. scene

Method used

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  • Tunneling construction method for shield tunneling machine
  • Tunneling construction method for shield tunneling machine
  • Tunneling construction method for shield tunneling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one: if Figure 1-4 As shown, the present embodiment is a construction method for tunneling of a shield machine belonging to the field of underground engineering, and specifically relates to a working well 1, a tunnel 5 and a shield machine 6 working in the tunnel 5. The construction method is implemented by The following steps are done:

[0026] ① When the front end of the shield machine 6 is close to the sealing door, stop the construction, remove the sealing door 2 arranged on the well wall 3, and lay the base 18 on the ground of the working well 1;

[0027] ② Then use a large crane to set up the cavity 12 with both ends open on the base 18 in the working well 1, and make the cavity 12 close to the well wall 3, in order to ensure the sealing of the cavity 12 and the entrance 8, A sealing gasket 13 is arranged between the cavity 12 and the well wall 3; at the same time, in order to ensure that the shield machine 6 can move coaxially and linearly in the cav...

Embodiment 2

[0031] Embodiment two: if figure 1 , 4 , 5, 6, and 7, this embodiment is a preferred solution of the present invention, and the difference from Embodiment 1 is that the length of the cavity 12 becomes smaller, and the length of the cavity 12 is reduced to 1 / of the length of the shield machine 6 3. Due to the change of the length of the cavity 12, the construction steps have also been greatly changed. The specific steps are as follows:

[0032] ① When the front end of the shield machine 6 is close to the sealing door, stop the construction, remove the sealing door 2 arranged on the well wall 3, and lay the base 18 on the ground of the working well 1;

[0033] ② Then use a large crane to erect the cavity 12 with both ends open on the base 18 in the working well 1, and make the cavity 12 close to the well wall 3, in order to ensure the sealing of the cavity 12 and the entrance 8, A sealing gasket 13 is arranged between the cavity 12 and the well wall 3; at the same time, in or...

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Abstract

The invention belongs to the field of underground construction and in particular relates to a tunneling construction method for a shield tunneling machine. The tunneling construction method comprises the following steps: detaching a sealed door on a wall of a working well before the shield tunneling machine enters the tunnel; erecting a shield tunneling machine tunnel-entering receiving device on the ground of the working well, wherein the shield tunneling machine tunnel-entering receiving device is specifically an open cavity which is tightly adhered to the wall of the working well, a cylinder frame is arranged in the cavity, at least two cylinders are fixed on the cylinder frame, and ejection plates are fixed at front ends of piston rods of the cylinders and are tightly adhered to the wall of the working well; starting the shield tunneling machine to advance forwards, and allowing a cutter head of the shield tunneling machine to press against the ejector plates and move forward at a constant speed until the shield tunneling machine completely leaves the tunnel, wherein the pressure of the cylinder is equal to the pressure of the shield tunneling machine acting on the ejector plates. The tunneling construction method has the advantages that the tunneling safety coefficient of the shield tunneling machine is high, and water burst and sand drainage phenomena in the soil body of the tunnel opening can be avoided; and moreover, the construction method is easy, convenient and rapid, and the required construction equipment is simple in structure and convenient to manufacture and transport.

Description

technical field [0001] The invention belongs to the field of underground engineering, and in particular relates to a construction method for tunneling by a shield machine. Background technique [0002] During tunnel excavation construction, the shield machine is generally advanced from one working well to another. The shield machine starts from the working well and enters the soil layer through the reserved hole circle, that is, the shield machine exits the hole, and then enters the soil layer from the soil layer. The medium advances into another reserved working well, which is the tunneling of the shield machine. Usually when the shield machine enters the hole, the sealing door is removed. If the soil quality in the shield tunneling area is poor or the sand content is high, the soil outside the well cannot stand on its own, and the sealing device of the hole ring in the well cannot block the soil outside the hole. , so the soil outside the hole enters the well, causing gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
Inventor 胡劲松陈立生赵国强龚叶峰卢礼顺陈介华
Owner SHANGHAI URBAN CONSTRUCTION MUNICIPAL ENGINEERING (GROUP) CO LTD