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Construction method for lifting out shield tunneling machine under condition of envelop enclosure

A technology of enclosure structure and shield machine, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of normal construction in the affected area and shield starting station, and the failure of subsequent equipment to be dismantled in time.

Active Publication Date: 2014-09-17
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the shield machine cannot enter the shield working shaft of the station in time, the follow-up equipment cannot be dismantled in time. At the same time, conditions such as subsequent excavation and transportation of segments need to be reserved, thus affecting the normal construction of the section and the shield starting station

Method used

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  • Construction method for lifting out shield tunneling machine under condition of envelop enclosure
  • Construction method for lifting out shield tunneling machine under condition of envelop enclosure
  • Construction method for lifting out shield tunneling machine under condition of envelop enclosure

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Embodiment Construction

[0026] figure 1 It is a flow chart of the hoisting construction method under the condition of the enclosure structure of the shield machine in this embodiment. Such as figure 1 As shown, a method of hoisting under the condition of a shield machine enclosure structure in this embodiment includes the following steps:

[0027] Step S1, implement the enclosure structure 1 at the position where the shield machine 4 is to be hoisted out, and the enclosure piles of the enclosure structure 1 within the cutting range of the shield machine are constructed with low-grade concrete and glass fiber bars 2. Specifically, in this embodiment The low-grade concrete adopts C20 or C15 concrete.

[0028] Step S2, combining figure 2 and image 3 As shown in Fig. 1, stratum reinforcement measures are adopted to reinforce the cutting opening part of the cutting enclosure structure of the shield machine, and a reinforcement area 3 is formed on both sides of the cutting opening.

[0029] Step S3 ...

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Abstract

The invention discloses a construction method for lifting out a shield tunneling machine under the condition of an envelop enclosure. The construction method comprises the following steps: (1) implementing the envelop enclosure in a place where the shield tunneling machine is to be lifted out; (2) reinforcing a cutting edge part, which cuts the envelop enclosure, of the shield tunneling machine; (3) moving the shield tunneling machine forward to gradually enter the envelop enclosure; (4) stopping the shield tunneling machine after moving two to three circular segments within the envelop enclosure forward, and sealing a working face; (5) additionally arranging temporary supports in the circular segments; (6) excavating a shield shaft foundation ditch to a base of the shield tunneling machine within the envelop enclosure, and during the process of excavating the foundation ditch, driving anchor cables outward in the inner side walls of the envelop enclosure; (7) sloping to excavate earthwork under the base of the shield tunneling machine, building a shield tunneling machine pedestal, and finally lifting out the shield tunneling machine. By applying the construction method, as the construction period of a station can be flexibly arranged, the construction period of a shield zone is not restricted by the construction of station structures.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a method for hoisting out a shield tunneling machine under the condition of an enclosure structure. Background technique [0002] In the construction of subway projects, the shield tunneling method has been more and more widely used. In the relevant design, the origin and arrival of the shield machine are the key links. In order to meet the starting and hoisting of the shield machine, it is necessary to install a shield working well at the end of the shield section. In the conventional design, the shield well is set in conjunction with the station, and the shield well is placed at the end of the station. After completing the main structure of the shield well and cutting out the enclosure structure of the portal, the shield machine entered the station and was hoisted out. [0003] However, in actual construction, the construction progress of the station is often slower ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06
Inventor 黄爱军张向霞田海波李莹张增峰
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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